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Table of Contents
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 10-Q

☑ | QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the Quarterly Period Ended September 30, 2023
OR

☐ | TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the Transition Period from to
Commission File No. 1-11778

CHUBB LIMITED
(Exact name of registrant as specified in its charter)

Switzerland | 98-0091805
(State or other jurisdiction of incorporation or organization) | (I.R.S. Employer Identification No.)

Baerengasse 32
Zurich, Switzerland CH-8001
(Address of principal executive offices) (Zip Code)
+41 (0)43 456 76 00
(Registrant’s telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:
Title of each class | Trading Symbol(s) | Name of each exchange on which registered
Comm on Shares, par value CHF 0.50 per share | CB | New York Stock Exchange
Guarantee of Chubb INA Holdings Inc. 0.30% Senior Notes due 2024 | CB/24A | New York Stock Exchange
Guarantee of Chubb INA Holdings Inc. 0.875% Senior Notes due 2027 | CB/27 | New York Stock Exchange
Guarantee of Chubb INA Holdings Inc. 1.55% Senior Notes due 2028 | CB/28 | New York Stock Exchange
Guarantee of Chubb INA Holdings Inc. 0.875% Senior Notes due 2029 | CB/29A | New York Stock Exchange
Guarantee of Chubb INA Holdings Inc. 1.40% Senior Notes due 2031 | CB/31 | New York Stock Exchange
Guarantee of Chubb INA Holdings Inc. 2.50% Senior Notes due 2038 | CB/38A | New York Stock Exchange

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15 (d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.
Yes ☑ No ☐
Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).
Yes ☑ No ☐
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer | ☑ |  |  | Accelerated filer | ☐
Non-accelerated filer | ☐ |  |  | Smaller reporting company | ☐
|  |  |  | Emerging growth company | ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).
Yes ☐ No ☑
The number of registrant’s Common Sh ares (CHF 0.50 par value) out standing as of October 11, 2023 was 407,989,898.

Table of Contents
CHUBB LIMITED
INDEX TO FORM 10-Q

Part I. | FINANCIAL INFORMATION | Page
Item 1. | Financial Statements: |
| Consolidated Balance Sheets (Unaudited) Septemb er 30, 2023 and December 31, 2022 | 3
| Consolidated Statements of Operations and Comprehensive Income (Unaudited) Three and Nine Months Ended September 30, 2023 and 2022 | 4
| Consolidated Statements of Shareholders' Equity (Unaudited) Three and Nine Months Ended September 30, 2023 and 2022 | 5
| Consolidated Statements of Cash Flows (Unaudited) Nine Months Ended September 30, 2023 and 2022 | 6
| Notes to Consolidated Financial Statements (Unaudited) |
| Note 1. | General and significant accounting policies | 7
| Note 2. | Acquisitions | 12
| Note 3. | Investments | 16
| Note 4. | Fair value measurements | 22
| Note 5. | Reinsurance | 30
| Note 6. | Deferred acquisition costs | 30
| Note 7. | Goodwill, Value of business acquired, and Other intangible assets | 32
| Note 8. | Unpaid losses and loss expenses | 34
| Note 9. | Future policy benefits | 37
| Note 10. | Policyholders' account balances | 41
| Note 11. | Market risk benefits | 44
| Note 12. | Separate accounts | 45
| Note 13. | Commitments, contingencies, and guarantees | 46
| Note 14. | Shareholders' equity | 52
| Note 15. | Share-based compensation | 55
| Note 16. | Postretirement benefits | 56
| Note 17. | Other income and expense | 58
| Note 18. | Segment information | 58
| Note 19. | Earnings per share | 61
Item 2. | Management’s Discussion and Analysis of Financial Condition and Results of Operations | 63
Item 3. | Quantitative and Qualitative Disclosures About Market Risk | 102
Item 4. | Controls and Procedures | 105
Part II. | OTHER INFORMATION |
Item 1. | Legal Proceedings | 106
Item 1A. | Risk Factors | 106
Item 2. | Unregistered Sales of Equity Securities and Use of Proceeds and Issuer Repurchases of Equity Securities | 107
Item 5. | Other Information | 108
Item 6. | Exhibits | 109

2

Table of Contents
PART I FINANCIAL INFORMATION

ITEM 1. Financial Statements

CONSOLIDATED BALANCE SHEETS (Unaudited)
Chubb Limited and Subsidiaries

| September 30, 2023 |  | December 31, 2022
(in millions of U.S. dollars, except share and per share data) |  |  | As Adjusted
Assets |  |  |
Investments |  |  |
Short-term investments, at fair value (amortized cost – $5,455 and $4,962) | $ | 5,454 |  |  | $ | 4,960 |
Fixed maturities available for sale, at fair value, net of valuation allowance - $158 and $169 (amortized cost – $109,355 and $93,355) | 99,766 |  |  | 85,220 |
Fixed maturities held to maturity, at amortized cost, net of valuation allowance - nil and $34 (fair value – nil and $8,439) | — |  |  | 8,848 |
Private debt held-for-investment, at amortized cost | 2,401 |  |  | — |
Equity securities, at fair value | 3,395 |  |  | 827 |
Private equities | 13,362 |  |  | 12,355 |
Other investments | 5,583 |  |  | 1,341 |
Total investments (refer to Note 3 for balances associated with variable interest entities (VIEs)) | 129,961 |  |  | 113,551 |
Cash, including restricted cash $192 and $115 (refer to Note 3 for balances associated with VIEs) | 2,778 |  |  | 2,127 |
Securities lending collateral | 1,469 |  |  | 1,523 |
Accrued investment income | 1,040 |  |  | 941 |
Insurance and reinsurance balances receivable, net of valuation allowance - $53 and $52 | 13,907 |  |  | 11,933 |
Reinsurance recoverable on losses and loss expenses, net of valuation allowance - $370 and $351 | 19,750 |  |  | 18,859 |
Reinsurance recoverable on policy benefits | 315 |  |  | 302 |
Deferred policy acquisition costs | 6,856 |  |  | 6,031 |
Value of business acquired | 3,675 |  |  | 3,702 |
Goodwill | 19,554 |  |  | 16,228 |
Other intangible assets | 6,844 |  |  | 5,441 |
Prepaid reinsurance premiums | 3,514 |  |  | 3,136 |
Investments in partially-owned insurance companies | 188 |  |  | 2,507 |
Separate account assets | 5,306 |  |  | 5,190 |
Other assets | 7,591 |  |  | 7,546 |
Total assets | $ | 222,748 |  |  | $ | 199,017 |
Liabilities |  |  |
Unpaid losses and loss expenses | $ | 79,705 |  |  | $ | 75,747 |
Unearned premiums | 22,684 |  |  | 19,713 |
Future policy benefits | 13,109 |  |  | 10,476 |
Market risk benefits | 770 |  |  | 800 |
Policyholders' account balances | 7,178 |  |  | 3,140 |
Separate account liabilities | 5,306 |  |  | 5,190 |
Insurance and reinsurance balances payable | 8,481 |  |  | 7,780 |
Securities lending payable | 1,469 |  |  | 1,523 |
Accounts payable, accrued expenses, and other liabilities | 8,422 |  |  | 7,148 |
Deferred tax liabilities | 759 |  |  | 377 |
Repurchase agreements (refer to Note 3 for balances associated with VIEs) | 2,617 |  |  | 1,419 |
Short-term debt | 700 |  |  | 475 |
Long-term debt | 13,736 |  |  | 14,402 |
Trust preferred securities | 308 |  |  | 308 |
Total liabilities | 165,244 |  |  | 148,498 |
Commitments and contingencies (refer to Note 13) |  |  |
Shareholders’ equity |  |  |
Common Shares (CHF 0.50 and 24.15 par value; 431,451,586 and 446,376,614 shares issued; 407,984,339 and 414,594,856 shares outstanding) | 241 |  |  | 10,346 |
Common Shares in treasury (23,467,247 and 31,781,758 shares) | (3,747) |  |  | (5,113) |
Additional paid-in capital | 15,887 |  |  | 7,166 |
Retained earnings | 51,510 |  |  | 48,305 |
Accumulated other comprehensive income (loss) (AOCI) | (11,518) |  |  | (10,185) |
Total Chubb shareholders’ equity | 52,373 |  |  | 50,519 |
Noncontrolling interests (refer to Note 3 for balances associated with VIEs) | 5,131 |  |  | — |
Total shareholders' equity | 57,504 |  |  | 50,519 |
Total liabilities and shareholders’ equity | $ | 222,748 |  |  | $ | 199,017 |

See accompanying notes to the Consolidated Financial Statements
3

Table of Contents
CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (Unaudited)
Chubb Limited and Subsidiaries

| Three Months Ended |  | Nine Months Ended
| September 30 |  | September 30
| 2023 |  | 2022 |  | 2023 |  | 2022
(in millions of U.S. dollars, except per share data) |  |  | As Adjusted |  |  |  | As Adjusted
Revenues |  |  |  |  |  |  |
Net premiums written | $ | 13,104 |  |  | $ | 12,012 |  |  | $ | 35,765 |  |  | $ | 31,494 |
Increase in unearned premiums | (430) |  |  | (482) |  |  | (1,950) |  |  | (1,678) |
Net premiums earned | 12,674 |  |  | 11,530 |  |  | 33,815 |  |  | 29,816 |
Net investment income | 1,314 |  |  | 979 |  |  | 3,566 |  |  | 2,689 |
Net realized gains (losses) | (103) |  |  | (456) |  |  | (484) |  |  | (936) |
Market risk benefits gains (losses) | (32) |  |  | 69 |  |  | (154) |  |  | 85 |
Total revenues | 13,853 |  |  | 12,122 |  |  | 36,743 |  |  | 31,654 |
Expenses |  |  |  |  |  |  |
Losses and loss expenses | 7,106 |  |  | 7,063 |  |  | 17,937 |  |  | 16,833 |
Policy benefits (includes remeasurement gains of $25, $17, $21, and $11) | 938 |  |  | 707 |  |  | 2,565 |  |  | 1,441 |
Policy acquisition costs | 2,178 |  |  | 1,970 |  |  | 6,142 |  |  | 5,415 |
Administrative expenses | 1,060 |  |  | 883 |  |  | 2,959 |  |  | 2,479 |
Interest expense | 174 |  |  | 150 |  |  | 499 |  |  | 416 |
Other (income) expense | (154) |  |  | 202 |  |  | (550) |  |  | (9) |
Amortization of purchased intangibles | 84 |  |  | 69 |  |  | 226 |  |  | 211 |
Cigna integration expenses | 14 |  |  | 23 |  |  | 51 |  |  | 26 |
Total expenses | 11,400 |  |  | 11,067 |  |  | 29,829 |  |  | 26,812 |
Income before income tax | 2,453 |  |  | 1,055 |  |  | 6,914 |  |  | 4,842 |
Income tax expense | 413 |  |  | 263 |  |  | 1,189 |  |  | 907 |
Net income | $ | 2,040 |  |  | $ | 792 |  |  | $ | 5,725 |  |  | $ | 3,935 |
Net loss attributable to noncontrolling interests | (3) |  |  | — |  |  | (3) |  |  | — |
Net income attributable to Chubb | $ | 2,043 |  |  | $ | 792 |  |  | $ | 5,728 |  |  | $ | 3,935 |
Other comprehensive income (loss) |  |  |  |  |  |  |
Change in: |  |  |  |  |  |  |
Unrealized depreciation | $ | (2,170) |  |  | $ | (3,045) |  |  | $ | (1,578) |  |  | $ | (12,041) |
Current discount rate on future policy benefits | 683 |  |  | 479 |  |  | 497 |  |  | 1,546 |
Instrument-specific credit risk on market risk benefits | (5) |  |  | 8 |  |  | 3 |  |  | 48 |
Cumulative foreign currency translation adjustment | (317) |  |  | (942) |  |  | (279) |  |  | (1,631) |
Other, including postretirement benefit liability adjustment | 37 |  |  | (59) |  |  | 52 |  |  | (35) |
Other comprehensive loss, before income tax | (1,772) |  |  | (3,559) |  |  | (1,305) |  |  | (12,113) |
Income tax (expense) benefit related to OCI items | — |  |  | 109 |  |  | (104) |  |  | 1,071 |
Other comprehensive loss | (1,772) |  |  | (3,450) |  |  | (1,409) |  |  | (11,042) |
Comprehensive income (loss) | 268 |  |  | (2,658) |  |  | 4,316 |  |  | (7,107) |
Comprehensive loss attributable to noncontrolling interests | (79) |  |  | — |  |  | (79) |  |  | — |
Comprehensive income (loss) attributable to Chubb | $ | 347 |  |  | $ | (2,658) |  |  | $ | 4,395 |  |  | $ | (7,107) |
Earnings per share |  |  |  |  |  |  |
Basic earnings per share attributable to Chubb | $ | 4.99 |  |  | $ | 1.90 |  |  | $ | 13.90 |  |  | $ | 9.34 |
Diluted earnings per share attributable to Chubb | $ | 4.95 |  |  | $ | 1.89 |  |  | $ | 13.79 |  |  | $ | 9.26 |

See accompanying notes to the Consolidated Financial Statements
4

Table of Contents
CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Unaudited)
Chubb Limited and Subsidiaries

| Three Months Ended |  | Nine Months Ended
| September 30 |  | September 30
| 2023 |  | 2022 |  | 2023 |  | 2022
(in millions of U.S. dollars) |  |  | As Adjusted |  |  |  | As Adjusted
Common Shares |  |  |  |  |  |  |
Balance – beginning of period | $ | 241 |  |  | $ | 10,666 |  |  | $ | 10,346 |  |  | $ | 10,985 |
Par value reduction | — |  |  | — |  |  | (9,759) |  |  | — |
Cancellation of treasury shares | — |  |  | (320) |  |  | (346) |  |  | (639) |
Balance – end of period | 241 |  |  | 10,346 |  |  | 241 |  |  | 10,346 |
Common Shares in treasury |  |  |  |  |  |  |
Balance – beginning of period | (3,174) |  |  | (6,794) |  |  | (5,113) |  |  | (7,464) |
Common Shares repurchased | (606) |  |  | (685) |  |  | (1,758) |  |  | (2,815) |
Cancellation of treasury shares | — |  |  | 2,473 |  |  | 2,869 |  |  | 4,983 |
Net shares issued under employee share-based compensation plans | 33 |  |  | 28 |  |  | 255 |  |  | 318 |
Balance – end of period | (3,747) |  |  | (4,978) |  |  | (3,747) |  |  | (4,978) |
Additional paid-in capital |  |  |  |  |  |  |
Balance – beginning of period | 16,163 |  |  | 7,707 |  |  | 7,166 |  |  | 8,478 |
Net shares redeemed (issued) under employee share-based compensation plans | 3 |  |  | 10 |  |  | (203) |  |  | (185) |
Exercise of stock options | (2) |  |  | (8) |  |  | (15) |  |  | (35) |
Share-based compensation expense | 75 |  |  | 66 |  |  | 230 |  |  | 205 |
Par value reduction | — |  |  | — |  |  | 9,759 |  |  | — |
Funding of dividends declared to Retained earnings | (352) |  |  | (346) |  |  | (1,050) |  |  | (1,034) |
Balance – end of period | 15,887 |  |  | 7,429 |  |  | 15,887 |  |  | 7,429 |
Retained earnings |  |  |  |  |  |  |
Balance – beginning of period | 49,467 |  |  | 48,355 |  |  | 48,305 |  |  | 47,403 |
Net income attributable to Chubb | 2,043 |  |  | 792 |  |  | 5,728 |  |  | 3,935 |
Cancellation of treasury shares | — |  |  | (2,153) |  |  | (2,523) |  |  | (4,344) |
Funding of dividends declared from Additional paid-in capital | 352 |  |  | 346 |  |  | 1,050 |  |  | 1,034 |
Dividends declared on Common Shares | (352) |  |  | (346) |  |  | (1,050) |  |  | (1,034) |
Balance – end of period | 51,510 |  |  | 46,994 |  |  | 51,510 |  |  | 46,994 |
Accumulated other comprehensive income (loss) (AOCI) |  |  |  |  |  |  |
Balance – beginning of period | (9,822) |  |  | (8,666) |  |  | (10,185) |  |  | (1,074) |
Other comprehensive loss | (1,696) |  |  | (3,450) |  |  | (1,333) |  |  | (11,042) |
Balance – end of period | (11,518) |  |  | (12,116) |  |  | (11,518) |  |  | (12,116) |
Total Chubb shareholders’ equity | $ | 52,373 |  |  | $ | 47,675 |  |  | $ | 52,373 |  |  | $ | 47,675 |
Noncontrolling interests |  |  |  |  |  |  |
Balance – beginning of period | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |
Consolidation of Huatai Group | 5,210 |  |  | — |  |  | 5,210 |  |  | — |
Net loss attributable to noncontrolling interests | (3) |  |  | — |  |  | (3) |  |  | — |
Other comprehensive loss attributable to noncontrolling interests | (76) |  |  | — |  |  | (76) |  |  | — |
Balance – end of period | $ | 5,131 |  |  | $ | — |  |  | $ | 5,131 |  |  | $ | — |
Total shareholders' equity | $ | 57,504 |  |  | $ | 47,675 |  |  | $ | 57,504 |  |  | $ | 47,675 |

See accompanying notes to the Consolidated Financial Statements
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CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited)
Chubb Limited and Subsidiaries

| Nine Months Ended
| September 30
| 2023 |  | 2022
(in millions of U.S. dollars) |  |  | As Adjusted
Cash flows from operating activities |  |  |
Net income | $ | 5,725 |  |  | $ | 3,935 |
Adjustments to reconcile net income to net cash flows from operating activities |  |  |
Net realized (gains) losses | 484 |  |  | 936 |
Market risk benefits (gains) losses | 154 |  |  | (85) |
Amortization of premiums/discounts on fixed maturities | (80) |  |  | 185 |
Amortization of purchased intangibles | 226 |  |  | 211 |
Equity in net income of partially-owned entities | (610) |  |  | (180) |
Deferred income taxes | 39 |  |  | 55 |
Unpaid losses and loss expenses | 3,270 |  |  | 4,805 |
Unearned premiums | 2,085 |  |  | 1,904 |
Future policy benefits | 570 |  |  | 117 |
Insurance and reinsurance balances payable | 23 |  |  | 544 |
Accounts payable, accrued expenses, and other liabilities | (392) |  |  | 337 |
Income taxes payable | (6) |  |  | (108) |
Insurance and reinsurance balances receivable | (1,618) |  |  | (1,756) |
Reinsurance recoverable | (388) |  |  | (1,850) |
Deferred policy acquisition costs | (832) |  |  | (355) |
Other | 796 |  |  | (95) |
Net cash flows from operating activities | 9,446 |  |  | 8,600 |
Cash flows from investing activities |  |  |
Purchases of fixed maturities available for sale | (21,613) |  |  | (23,533) |
Purchases of fixed maturities held to maturity | (208) |  |  | (454) |
Purchases of equity securities | (968) |  |  | (837) |
Sales of fixed maturities available for sale | 11,293 |  |  | 14,142 |
Sales of equity securities | 531 |  |  | 4,453 |
Maturities and redemptions of fixed maturities available for sale | 5,107 |  |  | 7,882 |
Maturities and redemptions of fixed maturities held to maturity | 708 |  |  | 1,357 |
Net change in short-term investments | 484 |  |  | (1,106) |
Net derivative instruments settlements | (56) |  |  | (52) |
Private equity contributions | (1,313) |  |  | (2,194) |
Private equity distributions | 938 |  |  | 649 |
Acquisition of subsidiaries (net of cash acquired) | 216 |  |  | (5,095) |
Other | (553) |  |  | (414) |
Net cash flows used for investing activities | (5,434) |  |  | (5,202) |
Cash flows from financing activities |  |  |
Dividends paid on Common Shares | (1,044) |  |  | (1,030) |
Common Shares repurchased | (1,848) |  |  | (2,783) |
Proceeds from issuance of repurchase agreements | 3,778 |  |  | 3,552 |
Repayment of long-term debt | (475) |  |  | — |
Repayment of repurchase agreements | (3,832) |  |  | (2,554) |
Proceeds from share-based compensation plans | 140 |  |  | 198 |
Policyholder contract deposits | 415 |  |  | 321 |
Policyholder contract withdrawals | (269) |  |  | (285) |
Tax withholding payments for share-based compensation plans | (100) |  |  | (100) |
Other | (90) |  |  | (49) |
Net cash flows used for financing activities | (3,325) |  |  | (2,730) |
Effect of foreign currency rate changes on cash and restricted cash | (36) |  |  | (215) |
Net increase in cash and restricted cash | 651 |  |  | 453 |
Cash and restricted cash – beginning of period | 2,127 |  |  | 1,811 |
Cash and restricted cash – end of period | $ | 2,778 |  |  | $ | 2,264 |
Supplemental cash flow information |  |  |
Taxes paid | $ | 1,101 |  |  | $ | 964 |
Interest paid | $ | 345 |  |  | $ | 339 |

See accompanying notes to the Consolidated Financial Statements
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)
Chubb Limited and Subsidiaries
1. General and significant accounting policies
a) Basis of presentation
Chubb Limited is a holding company incorporated in Zurich, Switzerland. Chubb Limited, through its subsidiaries, provides a broad range of insurance and reinsurance products to insureds worldwide. Our results are reported through the following business segments: North America Commercial P&C Insurance, North America Personal P&C Insurance, North America Agricultural Insurance, Overseas General Insurance, Global Reinsurance, and Life Insurance. Refer to Note 18 for additional information.
The interim unaudited consolidated financial statements include the accounts of Chubb Limited and its subsidiaries (collectively, Chubb, we, us, or our), over which Chubb exercises control, including Huatai Group, our majority-owned subsidiary, and minority-owned entities such as variable interest entities (VIEs) in which Chubb is considered the primary beneficiary. Noncontrolling interests on the consolidated financial statements represent the portion of majority-owned subsidiaries and VIEs in which we do not have direct equity ownership. These interim unaudited consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (GAAP) and, in the opinion of management, reflect all adjustments necessary for a fair statement of the results and financial position for such periods. All significant intercompany accounts and transactions, including internal reinsurance transactions, have been eliminated.
On July 1, 2023, Chubb increased its investment in Huatai Group from approximately 64.2 percent to approximately 69.6 percent. Accordingly, Chubb discontinued the equity method of accounting for its investment in Huatai Group and applied consolidation accounting. Business activity for, and the financial position of, Huatai Group is reported at 100 percent on the Consolidated Financial Statements starting when Chubb obtained control of Huatai Group on July 1, 2023. The relevant amounts attributable to shareholders other than Chubb (representing approximately 30.4 percent of Huatai Group) are reflected under Noncontrolling interests, Net income (loss) attributable to noncontrolling interests, and Comprehensive income (loss) attributable to noncontrolling interests in the Consolidated Financial Statements. Refer to Note 2 for additional information.
Huatai Group's life and asset management businesses are included in the Life Insurance segment, and Huatai Group's P&C business is included in the Overseas General Insurance segment. Results for Huatai Group's non-insurance operations, comprising real estate and holding company activity, are included in Corporate.
The results of operations and cash flows for any interim period are not necessarily indicative of the results for the full year. These consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes included in our 2022 Form 10-K.
b) Accounting policies adopted upon consolidation of Huatai Group
The following accounting policies have been adopted or updated upon the consolidation of Huatai Group and its subsidiaries (collectively, Huatai) in the third quarter of 2023:
Asset management and performance fee revenue and expenses
Huatai's asset management companies recognize revenue and expenses unrelated to Chubb's core insurance operations from the management of third-party assets. These revenues include fixed-rate management fees, which are recognized in the period in which the services are performed, and asset performance fees, which are recognized to the extent it is probable that a significant reversal will not occur. These fees and expenses are included in Other (income) expense on the Consolidated statements of operations. Refer to Note 17 for additional information.
Private debt held-for-investment, at amortized cost
Private debt held-for-investment are investments related principally to the funding of public and private projects that are mostly infrastructure related, and were acquired as part of Huatai’s investment portfolio upon consolidation. They have stated interest rates and maturity dates with fixed or determinable payments. Private debt held-for-investment are carried at amortized cost, net of a valuation allowance for credit losses. Interest income is recorded when earned.
Other investments
Chubb consolidates entities in which it has a controlling interest or is a primary beneficiary of a VIE. Huatai’s asset management businesses create investment entities known as sponsored investment products which include mutual funds with primary holdings in fixed maturities.
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)
Chubb Limited and Subsidiaries
Other investments principally comprised these fixed maturities. These securities are reported at fair value with changes in fair value reported through the Consolidated statements of operations within Net realized gains (losses) as required under investment company accounting standard s.
Consolidation of variable interest entities (VIEs)
Chubb consolidates entities in which it has a controlling interest or is a primary beneficiary of a VIE. Huatai's asset management businesses create investment entities known as sponsored investment products which include mutual funds with primary holdings in fixed maturities. These entities are created for varied purposes during the ordinary course of business, such as to obtain returns from investments, and to collect management fees for the assets managed on behalf of the third party investors. While many investors may not be related parties, Huatai invests in these funds at various ownership percentages. We determined that we are the primary beneficiary of these VIEs and generally consolidate when we hold an economic interest of 10 percent or more. The consolidation of VIEs records 100 percent of the underlying assets and liabilities of the mutual funds within the Consolidated balance sheets. The relevant amounts attributable to investors other than Chubb are reflected as Noncontrolling interests. Where Huatai's ownership in these sponsored investment products is less than 10 percent, we generally would not expect to be the primary beneficiary of these VIEs. Refer to Note 3 g) for additional information.
c) Accounting guidance adopted in 2023
Targeted Improvements to the Accounting for Long-Duration Contracts
Effective January 1, 2023, we adopted new guidance on the accounting for long-duration contracts (LDTI). The new accounting guidance requires more frequent updating of assumptions and a standardized discount rate for the future policy benefit liability, a requirement to use the fair value measurement model for policies with market risk benefits, simplified amortization of deferred acquisition costs, and enhanced disclosures.
With the exception of market risk benefits, we adopted this guidance on a modified retrospective basis. Under the modified retrospective basis, the liability for future policy benefits is updated to remove any amounts related to changes to the original discount rate at January 1, 2021 (the transition date) in AOCI and future cash flow assumptions are applied to contracts in force. The liability for future policy benefits prior to the transition date continues to use the original discount rate (interest accretion rate). The guidance for long-duration contracts applicable to market risk benefits, primarily assumed reinsurance programs involving minimum benefit guarantees under variable annuity contracts, was adopted on a retrospective transition approach. Under the retrospective transition approach, we calculated the fair value of market risk benefits which were previously accounted for under an insurance accounting model and recognized an adjustment to retained earnings as of January 1, 2021.
On January 1, 2021, we recognized a cumulative effect adjustment and increased beginning retained earnings by $52 million, and decreased AOCI by $1.8 billion. Results for the prior reporting periods in this report are presented in accordance with the new guidance. We also adopted the required disclosures in Note 6 Deferred acquisition costs, Note 9 Future policy benefits, Note 10 Policyholders’ account balances, Note 11 Market risk benefits, and Note 12 Separate accounts.
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)
Chubb Limited and Subsidiaries
The impact of adoption of the new guidance on our historical financial statements is as follows:

| December 31, 2022
(in millions of U.S. dollars) | As Previously Reported |  | LDTI Adoption Adjustment |  | As Adjusted
Consolidated balance sheet |  |  |  |  |
Reinsurance recoverable on losses and loss expenses | $ | 18,901 |  |  | $ | (42) |  |  | $ | 18,859 |
Reinsurance recoverable on policy benefits | 303 |  |  | (1) |  |  | 302 |
Deferred policy acquisition costs | 5,788 |  |  | 243 |  |  | 6,031 |
Value of business acquired | 3,596 |  |  | 106 |  |  | 3,702 |
Prepaid reinsurance premiums | 3,140 |  |  | (4) |  |  | 3,136 |
Investments in partially-owned insurance companies | 2,877 |  |  | (370) |  |  | 2,507 |
Unpaid losses and loss expenses | 76,323 |  |  | (576) |  |  | 75,747 |
Unearned premiums | 20,360 |  |  | (647) |  |  | 19,713 |
Future policy benefits | 10,120 |  |  | 356 |  |  | 10,476 |
Market risk benefits | — |  |  | 800 |  |  | 800 |
Insurance and reinsurance balances payable | 7,795 |  |  | (15) |  |  | 7,780 |
Deferred tax liabilities | 292 |  |  | 85 |  |  | 377 |
Retained Earnings | 48,334 |  |  | (29) |  |  | 48,305 |
Accumulated other comprehensive income (loss) | (10,193) |  |  | 8 |  |  | (10,185) |

Excluded from the table above is the reclassification of Separate account assets, Separate account liabilities, and Policyholders' account balances as separate line items on the Consolidated balance sheets. Separate accounts assets were previously classified in Other assets, and Separate account liabilities and Policyholders' account balances were previously classified in Accounts payable, accrued expenses, and other liabilities.
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)
Chubb Limited and Subsidiaries

| Three Months Ended |  | Nine Months Ended |  |
| September 30, 2022 |  | September 30, 2022 |  |
(in millions of U.S. dollars) | As Previously Reported |  | LDTI Adoption Adjustment |  | As Adjusted |  | As Previously Reported |  | LDTI Adoption Adjustment |  | As Adjusted |  |  |  |  |  |  |
Consolidated statements of operations and comprehensive income |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net premiums written | $ | 12,020 |  |  | $ | (8) |  |  | $ | 12,012 |  |  | $ | 31,521 |  |  | $ | (27) |  |  | $ | 31,494 |  |  |  |  |  |  |  |
Net premiums earned | 11,535 |  |  | (5) |  |  | 11,530 |  |  | 29,838 |  |  | (22) |  |  | 29,816 |  |  |  |  |  |  |  |
Net realized gains (losses) | (384) |  |  | (72) |  |  | (456) |  |  | (787) |  |  | (149) |  |  | (936) |  |  |  |  |  |  |  |
Market risk benefits gains (losses) | — |  |  | 69 |  |  | 69 |  |  | — |  |  | 85 |  |  | 85 |  |  |  |  |  |  |  |
Losses and loss expenses | 7,279 |  |  | (216) |  |  | 7,063 |  |  | 17,474 |  |  | (641) |  |  | 16,833 |  |  |  |  |  |  |  |
Policy benefits | 486 |  |  | 221 |  |  | 707 |  |  | 790 |  |  | 651 |  |  | 1,441 |  |  |  |  |  |  |  |
Policy acquisition costs | 1,975 |  |  | (5) |  |  | 1,970 |  |  | 5,451 |  |  | (36) |  |  | 5,415 |  |  |  |  |  |  |  |
Other (income) expense | 188 |  |  | 14 |  |  | 202 |  |  | (21) |  |  | 12 |  |  | (9) |  |  |  |  |  |  |  |
Income tax expense | 265 |  |  | (2) |  |  | 263 |  |  | 913 |  |  | (6) |  |  | 907 |  |  |  |  |  |  |  |
Net Income | 812 |  |  | (20) |  |  | 792 |  |  | 4,001 |  |  | (66) |  |  | 3,935 |  |  |  |  |  |  |  |
Other comprehensive income |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Change in current discount rate on future policy benefits | — |  |  | 479 |  |  | 479 |  |  | — |  |  | 1,546 |  |  | 1,546 |  |  |  |  |  |  |  |
Change in instrument-specific credit risk on market risk benefits | — |  |  | 8 |  |  | 8 |  |  | — |  |  | 48 |  |  | 48 |  |  |  |  |  |  |  |
Income tax benefit related to OCI items | 165 |  |  | (56) |  |  | 109 |  |  | 1,222 |  |  | (151) |  |  | 1,071 |  |  |  |  |  |  |  |
Comprehensive income (loss) | (3,093) |  |  | 435 |  |  | (2,658) |  |  | (8,529) |  |  | 1,422 |  |  | (7,107) |  |  |  |  |  |  |  |

| Nine Months Ended |  |
| September 30,2022 |  |
(in millions of U.S. dollars) | As Previously Reported |  | LDTI Adoption Adjustment |  | As Adjusted |  |  |  |  |  |  |
Consolidated statement of cash flows |  |  |  |  |  |  |  |  |  |  |  |
Net cash flows from operating activities | $ | 8,592 |  |  | $ | 8 |  |  | $ | 8,600 |  |  |  |  |  |  |  |
Net cash flows used for financing activities | (2,722) |  |  | (8) |  |  | (2,730) |  |  |  |  |  |  |  |

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)
Chubb Limited and Subsidiaries
The following table presents a reconciliation of the pre-adoption December 31, 2020, to the post adoption January 1, 2021, balance of future policy benefits:

| Life Insurance |  | Overseas General Insurance |  |  |  | Offsetting Equity Line Classification
(in millions of U.S. dollars) | Term Life |  |  |  | Whole Life |  | A&H |  | Other |  | A&H |  | Total |  |
Future policy benefits |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance – December 31, 2020 (1) | $ | 391 |  |  |  |  | $ | 2,578 |  |  | $ | 2,270 |  |  | $ | 72 |  |  | $ | 754 |  |  | $ | 6,065 |  |  |
Effect of change in current discount rate | 63 |  |  |  |  | 1,189 |  |  | 299 |  |  | 17 |  |  | 19 |  |  | 1,587 |  |  | AOCI
Balance – January 1, 2021 | $ | 454 |  |  |  |  | $ | 3,767 |  |  | $ | 2,569 |  |  | $ | 89 |  |  | $ | 773 |  |  | $ | 7,652 |  |  |

(1) Includes future policy benefits previously included within Unpaid losses on the pre-adoption Consolidated balance sheets, primarily certain international A&H business, and excludes deferred profit liability and certain guaranteed minimum death benefits reclassified to Market risk benefits on the post adoption period balance sheets.
The following table presents a reconciliation of the pre-adoption December 31, 2020, to the post adoption January 1, 2021, balance of market risk benefits:

(in millions of U.S. dollars) |  |  |  |  |  |  | Offsetting Equity Line Classification
Market risk benefits |  |  |  |  |  |  |
Balance – December 31, 2020 |  |  | $ | 1,138 |  |  |  |  |
Cumulative effect of changes in instrument-specific credit risk between original contract issuance date and transition date (1) |  |  | 84 |  |  |  |  | AOCI
Other fair value adjustments |  |  | (59) |  |  |  |  | Retained Earnings
Balance – January 1, 2021 |  |  | $ | 1,163 |  |  |  |  |

(1) Includes $77 million of instrument-specific credit risk allocated from retained earnings to AOCI.
Significant accounting policies
The following accounting policies have been updated to reflect the adoption of LDTI. Refer to Note 1 in the 2022 Form 10-K for a complete description of our accounting policies.
Deferred policy acquisition costs (DAC)
Policy acquisition costs on long-duration contracts are grouped by contract type and issue year into cohorts consistent with the grouping used in estimating the associated liability. Deferred policy acquisition costs are amortized on a constant level basis over the expected term of the related contracts to approximate straight-line amortization. The constant level basis used for amortization is the face amount in force and is projected using the same assumptions used in estimating the liability for future policy benefits. If those projected assumptions change in future periods, they will be reflected in the cohort level amortization basis at that time. Unexpected changes in the in-force portfolio, due to variances in mortality and lapse experience, are recognized over the contract term. Changes in future mortality and lapse assumptions are also recognized prospectively over the remaining expected contract term.
Future policy benefits
For traditional and limited-payment contracts, contracts are grouped into cohorts by contract type and issue year to determine a liability for future policy benefits. The future policy benefit liability (FPBL) is the present value of estimated future policy benefits to be paid to or on behalf of policyholders and certain related expenses less the present value of estimated future net premiums to be collected from policyholders, and is accrued as premium revenue is recognized. The valuation of this liability requires management to make estimates and assumptions regarding expenses, mortality, and persistency. Estimates are primarily based on historical experience. Actual results could differ materially from these estimates.
The liability is adjusted for differences between actual and expected experience. With the exception of the expense assumption, we review our future cash flow assumptions at least annually to determine if the net premium ratio (NPR), the mechanism used to record the liability as premium is earned, used to calculate the liability should be changed at that time. We have elected to use expense assumptions that are locked in at contract inception and are not subsequently reviewed or updated. Each quarter, we update the cash flows expected over the entire life of each cohort for actual historical experience and projected future cash
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)
Chubb Limited and Subsidiaries
flows. These updated cash flows are used to calculate the revised NPR, which is used to derive an updated FPBL as of the beginning of the current reporting period, discounted at the original contract issuance discount rate. This amount is then compared to the carrying amount of the liability as of that same date, but before the updating of cash flow assumptions, to determine the current period change in FPBL. This current period change in the liability is the liability remeasurement gain or loss and is recorded in Policy benefits in the Consolidated statements of operations. In subsequent periods, the revised NPR is used to measure the FPBL until future revisions become required.
For traditional and limited-payment contracts, the discount rate assumption based on an upper-medium grade fixed-income instrument yield. An equivalent rate is derived based on A-credit-rated fixed-income instruments with similar duration to the liability. The discount rate assumption is updated quarterly and used to remeasure the liability at each reporting date, with the resulting change reflected in Other comprehensive income. For liability cash flows that are projected beyond the duration of market-observable A-credit-rated fixed-income instruments, we use the last market-observable yield level, as the basis for a linear interpolation to determine yield assumptions for durations that do not have market-observable yields.
Deferred profit liability
For limited-payment products, gross premiums received in excess of net premiums are deferred at initial recognition as a deferred profit liability (DPL) and recorded as a component of Future policy benefits in the Consolidated balance sheets. Net premiums are measured using actual cash flows and future cash flow assumptions consistent with those used in the measurement of the liability for future policy benefits and remeasured quarterly. The DPL is amortized in proportion to the discounted in-force policies. Interest is accreted on the balance of the DPL using the discount rate consistent with the interest accretion on the FPBL. The recalculated DPL, including adjusted amortization through the current period, is compared to the current carrying amount and the difference is recognized as an adjustment to Policy benefits in the Consolidated statements of operations as a remeasurement gain or loss.
Market risk benefits
Chubb reinsures various death and living benefit guarantees associated with variable annuities issued primarily in the United States, which are referred to as market risk benefits. These reinsurance contracts provide both protection to the ceding entity from other-than-nominal capital market risk and expose us to other-than-nominal capital market risk.
Market risk benefits are measured at fair value using a valuation model based on current net exposures, market data, our experience, and other factors. Changes in fair value are recognized in Market risk benefits gains (losses) in the Consolidated statements of operations, except the change in fair value due to a change in the instrument-specific credit risk, which is recognized in other comprehensive income. Refer to Note 11 for additional information.
2. Acquisitions
Huatai Group
Huatai Insurance Group Co., Ltd. (Huatai Group) is a Chinese financial services holding company and the parent company of, among others, Huatai Property & Casualty Insurance Co., Ltd. (Huatai P&C), Huatai Life Insurance Co., Ltd. (Huatai Life), Huatai Asset Management Co., Ltd., and Huatai Baoxing Fund Management Co., Ltd., of which Huatai Group owns 100 percent, 80 percent, 82 percent, and 85 percent, respectively (collectively, Huatai).
On July 1, 2023, Chubb increased its investment in Huatai Group from approximately 64.2 percent to approximately 69.6 percent. Chubb paid $318 million for the incremental 5.4 percent ownership interest.
On October 1, 2023, we closed on an incremental ownership interest of approximately 2.5 percent for $146 million, which was previously paid as a deposit. Chubb has agreements in place to acquire approximately 14.1 percent of incremental ownership interests, pending completion of certain closing conditions, of which approximately 3 percent also requires regulatory approval. We have paid deposits of $416 million for the approximately 14.1 percent of ownership interests, and the remaining aggregate purchase price to be paid upon closing is approximately $433 million, based on current exchange rates. Refer to Note 2 to the Consolidated Financial Statements in our 2022 Form 10-K for additional information.
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)
Chubb Limited and Subsidiaries
Upon discontinuation of the equity method of accounting, Chubb remeasured the 64.2 percent equity method investment to its fair value of $4.1 billion as of July 1, 2023, resulting in a one-time realized gain of $744 million after-tax, reflecting the remeasurement of the previously held equity interest's historical carrying value to fair value. There was also a net realized and unrealized loss of $17 million after-tax reflecting the write-off of AOCI loss balances accumulated while under the equity method of $611 million with an offset to realized loss of $628 million.
The acquisition of a controlling majority interest in Huatai Group generated $3,394 million of Goodwill, attributable to expected growth and profitability, and $1,655 million of Other intangible assets. None of the goodwill is expected to be deductible for income tax purposes. Additionally, the acquisition of a controlling majority interest in Huatai Group generated $309 million of Value of business acquired (VOBA). Chubb financed the transaction through available cash on hand. Direct costs related to the acquisition were expensed as incurred. These include one-time costs that are directly attributable to third-party consulting fees and other professional and legal fees related to the acquisition.
The following table summarizes Chubb's best estimate of fair value of the assets acquired and liabilities assumed on July 1, 2023. The fair value of assets and liabilities are preliminary and may change with offsetting adjustments to goodwill. Chubb may make further adjustments to its purchase price allocation and the fair value of noncontrolling interest through the end of the permissible one-year measurement period.

Preliminary estimate of Huatai Group assets and liabilities consolidated | July 1
(in millions of U.S. dollars) | 2023
Assets |
Investments and Cash | $ | 13,346 |
Accrued investment income | 60 |
Insurance and reinsurance balances receivable | 277 |
Reinsurance recoverable on losses and loss expenses | 581 |
Reinsurance recoverable on future policy benefits | 27 |
Value of business acquired | 309 |
Goodwill and intangible assets | 5,049 |
Other assets | 748 |
Total assets | $ | 20,397 |
Liabilities |
Unpaid losses and loss expenses | $ | 831 |
Unearned premiums | 800 |
Future policy benefits | 2,287 |
Policyholders' account balances | 4,014 |
Insurance and reinsurance balances payable | 644 |
Accounts payable, accrued expenses, and other liabilities | 702 |
Deferred tax liabilities | 232 |
Repurchase agreements | 1,269 |
Total liabilities | $ | 10,779 |
Net acquired assets, including goodwill, attributable to Chubb | 4,408 |
Net acquired assets, attributable to noncontrolling interests | 5,210 |
Net acquired assets, including goodwill | $ | 9,618 |

The following table summarizes the results of the acquired Huatai Group operations that have been included within our Consolidated statements of operations for the three and nine months ended September 30, 2023:

(in millions of U.S. dollars) |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  | $ | 389 |
Net loss |  |  |  |  |  |  | $ | (11) |
Net loss attributable to Chubb |  |  |  |  |  |  | $ | (9) |

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)
Chubb Limited and Subsidiaries
The preliminary purchase price allocation to intangible assets recorded in connection with the Huatai Group acquisition and their related useful lives at July 1, 2023, are as follows:

(in millions of U.S. dollars) | Amount |  | Weighted-average useful life
Definite life |  |  |
Agency distribution relationships | $ | 332 |  |  | 20 years
Asset management customer contracts | 94 |  |  | 16 years
Unearned premium reserves (UPR) intangible asset | 95 |  |  | 3 years
Land use rights | 569 |  |  | 31 years
Technology | 45 |  |  | 6 years
Indefinite life |  |  |
Trademarks | 398 |  |  | Indefinite
Asset management mutual funds | 122 |  |  | Indefinite
Total identified intangible assets | $ | 1,655 |  |  |

The following table presents supplemental unaudited pro forma consolidated information for the periods indicated as though the acquisition of a controlling majority interest in Huatai Group that occurred on July 1, 2023, had instead occurred on January 1, 2022. The unaudited pro forma consolidated financial information is presented for informational purposes only and is not necessarily indicative of the operating results that would have occurred had the acquisition of a controlling majority interest been consummated on January 1, 2022, nor is it necessarily indicative of future operating results. Significant assumptions used to determine pro forma operating results include amortization of VOBA and other intangible assets.

| Three Months Ended |  | Nine Months Ended
Pro forma: | September 30 |  | September 30
(in millions of U.S. dollars) | 2023 |  | 2022 |  | 2023 |  | 2022
Net premiums earned | $ | 12,674 |  |  | $ | 11,952 |  |  | $ | 34,605 |  |  | $ | 30,996 |
Total revenues | $ | 13,755 |  |  | $ | 12,612 |  |  | $ | 37,589 |  |  | $ | 33,019 |
Net income | $ | 1,905 |  |  | $ | 787 |  |  | $ | 5,595 |  |  | $ | 3,975 |
Net income attributable to Chubb | $ | 1,912 |  |  | $ | 777 |  |  | $ | 5,587 |  |  | $ | 3,935 |

Cigna’s Accident and Health (A&H) and Life Insurance Business in Asian Markets
On July 1, 2022, we completed the acquisition of the life and non-life insurance companies that house the personal accident, supplemental health, and life insurance business of Cigna in several Asian markets. Chubb paid approximately $5.4 billion in cash for the operations, which include Cigna's accident and health (A&H) and life business in Korea, Taiwan, New Zealand, Thailand, Hong Kong, and Indonesia, collectively referred to as Cigna's business in Asia. This complementary strategic acquisition expands our presence and advances our long-term growth opportunity in Asia. Effective July 1, 2022, the results of operations of this acquired business are reported primarily in our Life Insurance segment and, to a lesser extent, our Overseas General Insurance segment. Refer to the 2022 Form 10-K for additional information on this acquisition.
The acquisition of Cigna's business in Asia generated $1,177 million of goodwill, attributable to expected growth and profitability, and $309 million of other intangible assets. None of the goodwill is expected to be deductible for income tax purposes. Additionally, the acquisition of Cigna's business in Asia generated $3,633 million of value of business acquired (VOBA). Chubb financed the transaction through a combination of available cash and $2.0 billion in repurchase agreements that expired at the end of 2022. Direct costs related to the acquisition were expensed as incurred.
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)
Chubb Limited and Subsidiaries
The following table summarizes the fair value of the assets acquired and liabilities assumed at July 1, 2022:

Assets acquired and liabilities assumed from Cigna's business in Asia | July 1
(in millions of U.S. dollars) | 2022
Assets |
Investments and Cash | $ | 5,274 |
Accrued investment income | 33 |
Insurance and reinsurance balances receivable | 52 |
Reinsurance recoverable on losses and loss expenses | 3 |
Reinsurance recoverable on future policy benefits | 85 |
Value of business acquired | 3,633 |
Goodwill and intangible assets | 1,486 |
Other assets | 648 |
Total assets | $ | 11,214 |
Liabilities |
Unpaid losses and loss expenses | $ | 12 |
Unearned premiums | 60 |
Future policy benefits | 3,856 |
Insurance and reinsurance balances payable | 115 |
Accounts payable, accrued expenses, and other liabilities | 926 |
Deferred tax liabilities | 886 |
Total liabilities | $ | 5,855 |
Net acquired assets, including goodwill | 5,359 |
Total | $ | 11,214 |

The following table summarizes the results of the acquired Cigna business in Asia that have been included within our Consolidated statements of operations for the three and nine months ended September 30, 2022:

(in millions of U.S. dollars) |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  | $ | 681 |
Net income |  |  |  |  |  |  | $ | 17 |

The following table presents supplemental unaudited pro forma consolidated information for the periods indicated as though the acquisition of Cigna's business in Asia that occurred on July 1, 2022, had instead occurred on January 1, 2021. The unaudited pro forma consolidated financial information is presented for informational purposes only and is not necessarily indicative of the operating results that would have occurred had the acquisition been consummated on January 1, 2021, nor is it necessarily indicative of future operating results. Significant assumptions used to determine pro forma operating results include amortization of VOBA and other intangible assets and recognition of interest expense associated with the repurchase agreement transactions used to effect the acquisition.

|  |  | Three Months Ended |  |  |  | Nine Months Ended
Pro forma: |  |  | September 30 |  |  |  | September 30
(in millions of U.S. dollars) |  |  | 2022 |  |  |  | 2022
Net premiums earned |  |  | $ | 11,530 |  |  |  |  | $ | 31,341 |
Total revenues |  |  | $ | 12,124 |  |  |  |  | $ | 33,161 |
Net income |  |  | $ | 837 |  |  |  |  | $ | 4,172 |

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)
Chubb Limited and Subsidiaries
3. Investments
a) Transfers of securities
In June 2023, we determined that we no longer have the intent to hold securities in our held to maturity (HTM) portfolio until maturity. As a result, our entire HTM securities portfolio was transferred to the available for sale (AFS) portfolio. This decision allowed us to increase our flexibility to execute on our investment strategy and take advantage of the continuing higher reinvestment environment while not making any major change to our current asset allocation. At the time of the transfer on June 30, 2023, these securities had a carrying value of $8.2 billion and a fair value of $7.8 billion, resulting in an increase to Unrealized depreciation in OCI of $428 million, after-tax. This transfer represents a non-cash transaction and does not impact the Consolidated Statements of Cash Flows.
b) Fixed maturities

September 30, 2023 | Amortized Cost |  | Valuation Allowance |  | Gross Unrealized Appreciation |  | Gross Unrealized Depreciation |  | Fair Value |  |  |  |  |
(in millions of U.S. dollars) |  |  |  |  |  |
Available for sale |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury / Agency | $ | 3,944 |  |  | $ | — |  |  | $ | 2 |  |  | $ | (265) |  |  | $ | 3,681 |  |  |  |  |  |
Non-U.S. | 34,912 |  |  | (53) |  |  | 239 |  |  | (2,381) |  |  | 32,717 |  |  |  |  |  |
Corporate and asset-backed securities | 44,932 |  |  | (104) |  |  | 61 |  |  | (4,034) |  |  | 40,855 |  |  |  |  |  |
Mortgage-backed securities | 22,402 |  |  | (1) |  |  | 6 |  |  | (2,802) |  |  | 19,605 |  |  |  |  |  |
Municipal | 3,165 |  |  | — |  |  | 2 |  |  | (259) |  |  | 2,908 |  |  |  |  |  |
| $ | 109,355 |  |  | $ | (158) |  |  | $ | 310 |  |  | $ | (9,741) |  |  | $ | 99,766 |  |  |  |  |  |

December 31, 2022 | Amortized Cost |  | Valuation Allowance |  | Gross Unrealized Appreciation |  | Gross Unrealized Depreciation |  | Fair Value |  |  |  |  |  |  |  |  |  |  |
(in millions of U.S. dollars) |  |  |  |  |  |  |  |  |  |  |  |  |  |
Available for sale |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury / Agency | $ | 2,792 |  |  | $ | — |  |  | $ | 5 |  |  | $ | (171) |  |  | $ | 2,626 |  |  |  |  |  |  |  |  |  |  |  |
Non-U.S. | 28,064 |  |  | (59) |  |  | 108 |  |  | (2,205) |  |  | 25,908 |  |  |  |  |  |  |  |  |  |  |  |
Corporate and asset-backed securities | 40,547 |  |  | (107) |  |  | 49 |  |  | (3,534) |  |  | 36,955 |  |  |  |  |  |  |  |  |  |  |  |
Mortgage-backed securities | 17,871 |  |  | (3) |  |  | 4 |  |  | (2,021) |  |  | 15,851 |  |  |  |  |  |  |  |  |  |  |  |
Municipal | 4,081 |  |  | — |  |  | 8 |  |  | (209) |  |  | 3,880 |  |  |  |  |  |  |  |  |  |  |  |
| $ | 93,355 |  |  | $ | (169) |  |  | $ | 174 |  |  | $ | (8,140) |  |  | $ | 85,220 |  |  |  |  |  |  |  |  |  |  |  |

December 31, 2022 | Amortized Cost |  | Valuation Allowance |  | Net Carrying Value |  | Gross Unrealized Appreciation |  | Gross Unrealized Depreciation |  | Fair Value
(in millions of U.S. dollars) |  |  |
Held to maturity |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury / Agency | $ | 1,417 |  |  | $ | — |  |  | $ | 1,417 |  |  | $ | 1 |  |  | $ | (48) |  |  | $ | 1,370 |
Non-U.S. | 1,140 |  |  | (4) |  |  | 1,136 |  |  | — |  |  | (82) |  |  | 1,054 |
Corporate and asset-backed securities | 1,733 |  |  | (28) |  |  | 1,705 |  |  | 1 |  |  | (126) |  |  | 1,580 |
Mortgage-backed securities | 1,456 |  |  | (1) |  |  | 1,455 |  |  | — |  |  | (104) |  |  | 1,351 |
Municipal | 3,136 |  |  | (1) |  |  | 3,135 |  |  | 1 |  |  | (52) |  |  | 3,084 |
| $ | 8,882 |  |  | $ | (34) |  |  | $ | 8,848 |  |  | $ | 3 |  |  | $ | (412) |  |  | $ | 8,439 |

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)
Chubb Limited and Subsidiaries
The following table presents the amortized cost of our held to maturity securities according to S&P rating:

|  |  | December 31, 2022
(in millions of U.S. dollars, except for percentages) |  |  |  |  | Amortized cost |  | % of Total
AAA |  |  |  |  | $ | 1,612 |  |  | 18 | %
AA |  |  |  |  | 5,023 |  |  | 57 | %
A |  |  |  |  | 1,634 |  |  | 18 | %
BBB |  |  |  |  | 593 |  |  | 7 | %
BB |  |  |  |  | 20 |  |  | — | %
Total |  |  |  |  | $ | 8,882 |  |  | 100 | %

The following table presents fixed maturities by contractual maturity:

| September 30, 2023 |  | December 31, 2022
(in millions of U.S. dollars) | Net Carrying Value |  | Fair Value |  | Net Carrying Value |  | Fair Value
Available for sale |  |  |  |  |  |  |
Due in 1 year or less | $ | 4,805 |  |  | $ | 4,805 |  |  | $ | 2,962 |  |  | $ | 2,962 |
Due after 1 year through 5 years | 31,738 |  |  | 31,738 |  |  | 24,791 |  |  | 24,791 |
Due after 5 years through 10 years | 27,452 |  |  | 27,452 |  |  | 26,679 |  |  | 26,679 |
Due after 10 years | 16,166 |  |  | 16,166 |  |  | 14,937 |  |  | 14,937 |
| 80,161 |  |  | 80,161 |  |  | 69,369 |  |  | 69,369 |
Mortgage-backed securities | 19,605 |  |  | 19,605 |  |  | 15,851 |  |  | 15,851 |
| $ | 99,766 |  |  | $ | 99,766 |  |  | $ | 85,220 |  |  | $ | 85,220 |
Held to maturity |  |  |  |  |  |  |
Due in 1 year or less | $ | — |  |  | $ | — |  |  | $ | 1,015 |  |  | $ | 1,003 |
Due after 1 year through 5 years | — |  |  | — |  |  | 3,658 |  |  | 3,531 |
Due after 5 years through 10 years | — |  |  | — |  |  | 1,460 |  |  | 1,423 |
Due after 10 years | — |  |  | — |  |  | 1,260 |  |  | 1,131 |
| — |  |  | — |  |  | 7,393 |  |  | 7,088 |
Mortgage-backed securities | — |  |  | — |  |  | 1,455 |  |  | 1,351 |
| $ | — |  |  | $ | — |  |  | $ | 8,848 |  |  | $ | 8,439 |

Expected maturities could differ from contractual maturities because borrowers may have the right to call or prepay obligations, with or without call or prepayment penalties.
c) Gross unrealized loss
Fixed maturities in an unrealized loss position at September 30, 2023, and December 31, 2022, comprised both investment grade and below investment grade securities for which fair value declined, principally due to rising interest rates since the date of purchase. Refer to Note 1 e) in the 2022 Form 10-K for further information on factors considered in the evaluation of expected credit losses.
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)
Chubb Limited and Subsidiaries
The following tables present, for AFS fixed maturities in an unrealized loss position (including securities on loan) that are not deemed to have expected credit losses, the aggregate fair value and gross unrealized loss by length of time the security has been in an unrealized loss position:

| 0 – 12 Months |  | Over 12 Months |  | Total
September 30, 2023 | Fair Value |  | Gross Unrealized Loss |  | Fair Value |  | Gross Unrealized Loss |  | Fair Value |  | Gross Unrealized Loss
(in millions of U.S. dollars) |  |  |  |  |
U.S. Treasury / Agency | $ | 1,108 |  |  | $ | (32) |  |  | $ | 2,449 |  |  | $ | (233) |  |  | $ | 3,557 |  |  | $ | (265) |
Non-U.S. | 8,591 |  |  | (280) |  |  | 16,631 |  |  | (1,670) |  |  | 25,222 |  |  | (1,950) |
Corporate and asset-backed securities | 10,120 |  |  | (362) |  |  | 22,672 |  |  | (2,441) |  |  | 32,792 |  |  | (2,803) |
Mortgage-backed securities | 5,827 |  |  | (249) |  |  | 13,450 |  |  | (2,510) |  |  | 19,277 |  |  | (2,759) |
Municipal | 1,389 |  |  | (51) |  |  | 1,269 |  |  | (208) |  |  | 2,658 |  |  | (259) |
Total AFS fixed maturities | $ | 27,035 |  |  | $ | (974) |  |  | $ | 56,471 |  |  | $ | (7,062) |  |  | $ | 83,506 |  |  | $ | (8,036) |

| 0 – 12 Months |  | Over 12 Months |  | Total
December 31, 2022 | Fair Value |  | Gross Unrealized Loss |  | Fair Value |  | Gross Unrealized Loss |  | Fair Value |  | Gross Unrealized Loss
(in millions of U.S. dollars) |  |  |  |  |
U.S. Treasury / Agency | $ | 2,152 |  |  | $ | (125) |  |  | $ | 386 |  |  | $ | (46) |  |  | $ | 2,538 |  |  | $ | (171) |
Non-U.S. | 15,538 |  |  | (1,012) |  |  | 5,490 |  |  | (704) |  |  | 21,028 |  |  | (1,716) |
Corporate and asset-backed securities | 25,687 |  |  | (1,793) |  |  | 4,190 |  |  | (552) |  |  | 29,877 |  |  | (2,345) |
Mortgage-backed securities | 10,561 |  |  | (1,033) |  |  | 4,770 |  |  | (941) |  |  | 15,331 |  |  | (1,974) |
Municipal | 3,251 |  |  | (152) |  |  | 155 |  |  | (48) |  |  | 3,406 |  |  | (200) |
Total AFS fixed maturities | $ | 57,189 |  |  | $ | (4,115) |  |  | $ | 14,991 |  |  | $ | (2,291) |  |  | $ | 72,180 |  |  | $ | (6,406) |

At September 30, 2023, the tax benefit on certain unrealized losses in our investment portfolio was reduced by a valuation allowance of $1,108 million necessary due to limitations on the utilization of these losses. As part of evaluating whether it was more likely than not that we could realize these losses, we considered realized gains, carryback ability and available tax planning strategies.
The following table presents a roll-forward of valuation allowance for expected credit losses on fixed maturities:

| Three Months Ended |  | Nine Months Ended |  |
| September 30 |  | September 30 |  |
(in millions of U.S. dollars) | 2023 |  | 2022 |  | 2023 |  | 2022 |  |  |  |
Available for sale |  |  |  |  |  |  |  |  |  |  |
Valuation allowance for expected credit losses - beginning of period | $ | 193 |  |  | $ | 78 |  |  | $ | 169 |  |  | $ | 14 |  |  |  |  |
Provision for expected credit loss | 34 |  |  | 91 |  |  | 172 |  |  | 169 |  |  |  |  |
Write-offs charged against the expected credit loss | (1) |  |  | — |  |  | (5) |  |  | — |  |  |  |  |
Foreign currency revaluation | — |  |  | (2) |  |  | — |  |  | (2) |  |  |  |  |
Recovery of expected credit loss | (68) |  |  | (20) |  |  | (178) |  |  | (34) |  |  |  |  |
Valuation allowance for expected credit losses - end of period | $ | 158 |  |  | $ | 147 |  |  | $ | 158 |  |  | $ | 147 |  |  |  |  |
Held to maturity |  |  |  |  |  |  |  |  |  |  |
Valuation allowance for expected credit losses - beginning of period | $ | — |  |  | $ | 34 |  |  | $ | 34 |  |  | $ | 35 |  |  |  |  |
Provision for expected credit loss | — |  |  | — |  |  | — |  |  | 1 |  |  |  |  |
Recovery of expected credit loss | — |  |  | (1) |  |  | (34) |  |  | (3) |  |  |  |  |
Valuation allowance for expected credit losses - end of period | $ | — |  |  | $ | 33 |  |  | $ | — |  |  | $ | 33 |  |  |  |  |

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)
Chubb Limited and Subsidiaries
d) Net realized gains (losses)
The following table presents the components of Net realized gains (losses):

| Three Months Ended |  | Nine Months Ended |  |
| September 30 |  | September 30 |  |
(in millions of U.S. dollars) | 2023 |  | 2022 |  | 2023 |  | 2022 |  |  |  |
Fixed maturities: |  |  |  |  |  |  |  |  |  |  |
Gross realized gains | $ | 97 |  |  | $ | 144 |  |  | $ | 116 |  |  | $ | 545 |  |  |  |  |
Gross realized losses | (185) |  |  | (331) |  |  | (457) |  |  | (1,158) |  |  |  |  |
Net (provision for) recovery of expected credit losses | 34 |  |  | (70) |  |  | 44 |  |  | (133) |  |  |  |  |
Impairment (1) | (16) |  |  | (22) |  |  | (60) |  |  | (111) |  |  |  |  |
Total fixed maturities | (70) |  |  | (279) |  |  | (357) |  |  | (857) |  |  |  |  |
Equity securities | (100) |  |  | (80) |  |  | (61) |  |  | (287) |  |  |  |  |
Private equities | 40 |  |  | (42) |  |  | 75 |  |  | 17 |  |  |  |  |
Foreign exchange | (67) |  |  | 202 |  |  | (122) |  |  | 546 |  |  |  |  |
Investment and embedded derivative instruments | 9 |  |  | (198) |  |  | (92) |  |  | (232) |  |  |  |  |
Other derivative instruments | (7) |  |  | (19) |  |  | (6) |  |  | (9) |  |  |  |  |
Other (2) | 92 |  |  | (40) |  |  | 79 |  |  | (114) |  |  |  |  |
Net realized gains (losses) (pre-tax) | $ | (103) |  |  | $ | (456) |  |  | $ | (484) |  |  | $ | (936) |  |  |  |  |

(1)Relates to certain securities we intended to sell and securities written to market entering default.
(2)The three and nine months ended September 30, 2023 Includes a one-time realized gain of $116 million as a result of the consolidation of Huatai Group.
Realized gains and losses from Other investments, Equity securities and Private equities from the table above include sales of securities and unrealized gains and losses from fair value changes as follows:

|  |  |  |  | Three Months Ended
|  |  |  |  | September 30
| 2023 |  | 2022
(in millions of U.S. dollars) | Other Investments |  | Equity Securities |  | Private Equities |  | Total |  | Equity Securities |  | Private Equities |  | Total
Net gains (losses) recognized during the period | $ | (1) |  |  | $ | (100) |  |  | $ | 40 |  |  | $ | (61) |  |  | $ | (80) |  |  | $ | (42) |  |  | $ | (122) |
Less: Net gains (losses) recognized from sales of securities | — |  |  | (45) |  |  | — |  |  | (45) |  |  | (12) |  |  | — |  |  | (12) |
Unrealized gains (losses) recognized for securities still held at reporting date | $ | (1) |  |  | $ | (55) |  |  | $ | 40 |  |  | $ | (16) |  |  | $ | (68) |  |  | $ | (42) |  |  | $ | (110) |

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)
Chubb Limited and Subsidiaries

|  |  |  |  | Nine Months Ended
|  |  |  |  | September 30
| 2023 |  | 2022
(in millions of U.S. dollars) | Other Investments |  | Equity Securities |  | Private Equities |  | Total |  | Equity Securities |  | Private Equities |  | Total
Net gains (losses) recognized during the period | $ | (1) |  |  | $ | (61) |  |  | $ | 75 |  |  | $ | 13 |  |  | $ | (287) |  |  | $ | 17 |  |  | $ | (270) |
Less: Net gains (losses) recognized from sales of securities | — |  |  | (48) |  |  | — |  |  | (48) |  |  | 406 |  |  | — |  |  | 406 |
Unrealized gains (losses) recognized for securities still held at reporting date | $ | (1) |  |  | $ | (13) |  |  | $ | 75 |  |  | $ | 61 |  |  | $ | (693) |  |  | $ | 17 |  |  | $ | (676) |

e) Alternative investments
Alternative investments include partially-owned investment companies, investment funds, and limited partnerships measured at fair value using net asset value (NAV) as a practical expedient. The following table presents, by investment category, the expected liquidation period, fair value, and maximum future funding commitments of alternative investments:

| Expected Liquidation Period of Underlying Assets |  | September 30, 2023 |  | December 31, 2022
(in millions of U.S. dollars) | Fair Value |  | Maximum Future Funding Commitments |  | Fair Value |  | Maximum Future Funding Commitments
Financial | 2 to 10 Years |  | $ | 1,219 |  |  | $ | 384 |  |  | $ | 1,074 |  |  | $ | 505 |
Real assets | 2 to 13 Years |  | 2,136 |  |  | 526 |  |  | 2,166 |  |  | 681 |
Distressed | 2 to 8 Years |  | 1,160 |  |  | 810 |  |  | 1,048 |  |  | 755 |
Private credit | 3 to 8 Years |  | 319 |  |  | 309 |  |  | 215 |  |  | 429 |
Traditional | 2 to 14 Years |  | 8,222 |  |  | 4,280 |  |  | 7,424 |  |  | 5,025 |
Vintage | 1 to 3 Years |  | 78 |  |  | — |  |  | 55 |  |  | — |
Investment funds | Not Applicable |  | 228 |  |  | — |  |  | 373 |  |  | — |
|  |  | $ | 13,362 |  |  | $ | 6,309 |  |  | $ | 12,355 |  |  | $ | 7,395 |

Included in all categories in the above table, except for Investment funds, are investments for which Chubb will never have the contractual option to redeem but receives distributions based on the liquidation of the underlying assets. Further, for all categories except for Investment funds, Chubb does not have the ability to sell or transfer the investments without consent from the general partner of the individual funds.

Investment Category: |  | Consists of investments in private equity funds:
Financial |  | targeting financial services companies, such as financial institutions and insurance services worldwide
Real assets |  | targeting investments related to hard physical assets, such as real estate, infrastructure and natural resources
Distressed |  | targeting distressed corporate debt/credit and equity opportunities in the U.S.
Private credit |  | targeting privately originated corporate debt investments, including senior secured loans and subordinated bonds
Traditional |  | employing traditional private equity investment strategies, such as buyout and growth equity globally
Vintage |  | funds where the initial fund term has expired

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Chubb Limited and Subsidiaries
Investment funds employ various investment strategies, such as long/short equity and arbitrage/distressed. Included in this category are investments for which Chubb has the option to redeem at agreed upon value as described in each investment fund’s subscription agreement. Depending on the terms of the various subscription agreements, investment fund investments may be redeemed monthly, quarterly, semi-annually, or annually. If Chubb wishes to redeem an investment fund investment, it must first determine if the investment fund is still in a lock-up period (a time when Chubb cannot redeem its investment so that the investment fund manager has time to build the portfolio). If the investment fund is no longer in its lock-up period, Chubb must then notify the investment fund manager of its intention to redeem by the notification date prescribed by the subscription agreement. Subsequent to notification, the investment fund can redeem Chubb’s investment within several months of the notification. Notice periods for redemption of the investment funds are up to 270 days. Chubb can redeem its investment funds without consent from the investment fund managers.
f) Restricted assets
Chubb is required to maintain assets on deposit with various regulatory authorities to support its insurance and reinsurance operations. These requirements are generally promulgated in the statutory regulations of the individual jurisdictions. The assets on deposit are available to settle insurance and reinsurance liabilities. Chubb is also required to restrict assets pledged under repurchase agreements, which represent Chubb's agreement to sell securities and repurchase them at a future date for a predetermined price. We use trust funds in certain large reinsurance transactions where the trust funds are set up for the benefit of the ceding companies and generally take the place of letter of credit (LOC) requirements. We have investments in segregated portfolios primarily to provide collateral or guarantees for LOC and derivative transactions. Included in restricted assets at September 30, 2023, and December 31, 2022, are investments, primarily fixed maturities, totaling $17,505 million and $15,721 million, respectively, and cash of $192 million and $115 million, respectively.
The following table presents the components of restricted assets:

| September 30 |  | December 31
(in millions of U.S. dollars) | 2023 |  | 2022
Trust funds | $ | 8,462 |  |  | $ | 8,120 |
Deposits with U.S. regulatory authorities | 2,290 |  |  | 2,345 |
Deposits with non-U.S. regulatory authorities | 3,366 |  |  | 2,959 |
Assets pledged under repurchase agreements | 2,753 |  |  | 1,527 |
Other pledged assets | 826 |  |  | 885 |
Total | $ | 17,697 |  |  | $ | 15,836 |

g) Variable interest entities (VIEs)
Consolidated VIEs
Certain subsidiaries of Huatai Group are the investment manager of, and maintain investments in, sponsored investment products that are considered Variable Interest entities (VIEs). Refer to Note 1 for further information on our consolidation criteria. The assets of these VIEs are not available to our creditors, and the investors in these VIEs have no recourse to Chubb in excess of the assets contained within the VIEs. Our economic exposures are limited to our investments based on our ownership interest in these VIEs. Our total exposure to these sponsored investment products represents the value of our economic ownership interest.
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Chubb Limited and Subsidiaries
The following table presents the balances related to these sponsored investment products accounted for as VIEs that were recorded on our Consolidated balance sheets, including our net interest in these sponsored investment products:

| September 30
(in millions of U.S. dollars) | 2023
Short-term investments | $ | 466 |
Equity securities | 986 |
Private equities | 21 |
Other investments | 3,937 |
Total investments of consolidated VIEs | 5,410 |
Cash | 164 |
Other assets | 22 |
Total assets of consolidated VIEs | $ | 5,596 |
Other liabilities | 32 |
Repurchase agreements | 837 |
Total liabilities of consolidated VIEs | 869 |
Noncontrolling interests | 3,176 |
Chubb's net interest in consolidated VIEs | $ | 1,551 |

The carrying value of assets and liabilities on the Consolidated balance sheets relating to nonconsolidated sponsored investment products where we are not the primary beneficiary is immaterial.
4. Fair value measurements
a) Fair value hierarchy
Fair value of financial assets and financial liabilities is estimated based on the framework established in the fair value accounting guidance. The guidance defines fair value as the price to sell an asset or transfer a liability (an exit price) in an orderly transaction between market participants and establishes a three-level valuation hierarchy based on the reliability of the inputs. The fair value hierarchy gives the highest priority to quoted prices in active markets and the lowest priority to unobservable data.
The three levels of the hierarchy are as follows:
•Level 1 – Unadjusted quoted prices for identical assets or liabilities in active markets;
•Level 2 – Includes, among other items, inputs other than quoted prices that are observable for the asset or liability such as
interest rates and yield curves, quoted prices for similar assets and liabilities in active markets, and quoted prices for identical or similar assets and liabilities in markets that are not active; and
•Level 3 – Inputs that are unobservable and reflect management’s judgments about assumptions that market participants
would use in pricing an asset or liability.
We categorize financial instruments within the valuation hierarchy at the balance sheet date based upon the lowest level of inputs that are significant to the fair value measurement.
We use pricing services to obtain fair value measurements for the majority of our investment securities. Based on management’s understanding of the methodologies used, these pricing services only produce an estimate of fair value if there is observable market information that would allow them to make a fair value estimate. Based on our understanding of the market inputs used by the pricing services, all applicable investments have been valued in accordance with GAAP. We do not adjust prices obtained from pricing services. The following is a description of the valuation techniques and inputs used to determine fair values for financial instruments carried at fair value, as well as the general classification of such financial instruments pursuant to the valuation hierarchy.
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Chubb Limited and Subsidiaries
Fixed maturities
We use pricing services to estimate fair value measurements for the majority of our fixed maturities. The pricing services use market quotations for fixed maturities that have quoted prices in active markets; such securities are classified within Level 1. For fixed maturities other than U.S. Treasury securities that generally do not trade on a daily basis, the pricing services prepare estimates of fair value measurements using their pricing applications or pricing models, which include available relevant market information, benchmark curves, benchmarking of like securities, sector groupings, and matrix pricing. Additional valuation factors that can be taken into account are nominal spreads, dollar basis, and liquidity adjustments. The pricing services evaluate each asset class based on relevant market and credit information, perceived market movements, and sector news. The market inputs used in the pricing evaluation, listed in the approximate order of priority include: benchmark yields, reported trades, broker/dealer quotes, issuer spreads, two-sided markets, benchmark securities, bids, offers, reference data, and industry and economic events. The extent of the use of each input is dependent on the asset class and the market conditions. Given the asset class, the priority of the use of inputs may change, or some market inputs may not be relevant. Additionally, fixed maturities valuation is more subjective when markets are less liquid due to the lack of market based inputs (i.e., stale pricing) and may require the use of models to be priced. The lack of market based inputs may increase the potential that an investment's estimated fair value is not reflective of the price at which an actual transaction would occur. The overwhelming majority of fixed maturities are classified within Level 2 because the most significant inputs used in the pricing techniques are observable. For a small number of fixed maturities, we obtain a single broker quote (typically from a market maker). Due to the disclaimers on the quotes that indicate that the price is indicative only, we include these fair value estimates in Level 3.
Equity securities
Equity securities with active markets are classified within Level 1 as fair values are based on quoted market prices. For equity securities in markets which are less active, fair values are based on market valuations and are classified within Level 2. Equity securities for which pricing is unobservable are classified within Level 3.
Short-term investments
Short-term investments, which comprise securities due to mature within one year of the date of purchase that are traded in active markets, are classified within Level 1 as fair values are based on quoted market prices. Securities such as commercial paper and discount notes are classified within Level 2 because these securities are typically not actively traded due to their approaching maturity, and as such, their cost approximates fair value. Short-term investments for which pricing is unobservable are classified within Level 3.
Private equities
Fair values for the majority of Private equities including investments in partially-owned investment companies, investment funds, and limited partnerships are based on their respective NAV and are excluded from the fair value hierarchy table below.
Other investments
Certain of our long-duration contracts are supported by assets that do not qualify for separate account reporting under GAAP. These assets comprise mutual funds, classified within Level 1 in the valuation hierarchy on the same basis as other equity securities traded in active markets. Other investments principally include fixed maturities carried at fair value with changes in fair value recorded through the Consolidated statements of operations. These fixed maturities principally relate to the acquired Huatai investment portfolio and are classified within Level 2. Also included are life insurance policies collateralizing investments held in rabbi trusts maintained by Chubb for deferred compensation plans and supplemental retirement plans. These policies are carried at cash surrender value and are classified in the valuation hierarchy within Level 2.
Securities lending collateral
The underlying assets included in Securities lending collateral in the Consolidated balance sheets are fixed maturities which are classified in the valuation hierarchy on the same basis as other fixed maturities. Excluded from the valuation hierarchy is the corresponding liability related to Chubb’s obligation to return the collateral plus interest as it is reported at contract value and not fair value in the Consolidated balance sheets.
Investment derivatives
Actively traded investment derivative instruments, including futures, options, and forward contracts are classified within Level 1 as fair values are based on quoted market prices. The fair value of cross-currency swaps and interest rate swaps is based on market valuations and is classified within Level 2. Investment derivative instruments are recorded in either Other assets or Accounts payable, accrued expenses, and other liabilities in the Consolidated balance sheets.
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Chubb Limited and Subsidiaries
Derivatives designated as hedging instruments
Certain of our derivatives are cross-currency swaps designated as fair value and net investment hedging instruments. The fair value of cross-currency swaps and interest rate swaps is based on market valuations and is classified within Level 2. Investment derivative instruments are recorded in either Other assets or Accounts payable, accrued expenses, and other liabilities in the Consolidated balance sheets.
Other derivative instruments
We maintain positions in exchange-traded equity futures contracts designed to limit exposure to a severe equity market decline, which would cause an increase in expected claims and, therefore, an increase in market risk benefits (MRB) reserves and our MRB reinsurance business. Our positions in exchange-traded equity futures contracts are classified within Level 1. The fair value of the majority of the remaining positions in other derivative instruments is based on significant observable inputs including equity security and interest rate indices. Accordingly, these are classified within Level 2. Other derivative instruments based on unobservable inputs are classified within Level 3. Other derivative instruments are recorded in either Other assets or Accounts payable, accrued expenses, and other liabilities in the Consolidated balance sheets.
Separate account assets
Separate account assets represent segregated funds where investment risks are borne by the customers, except to the extent of certain guarantees made by Chubb. Separate account assets principally comprise mutual funds classified within Level 1 in the valuation hierarchy on the same basis as other equity securities traded in active markets. Separate account assets also include fixed maturities classified within Level 2 because the most significant inputs used in the pricing techniques are observable. Excluded from the valuation hierarchy are the corresponding liabilities as they are reported at contract value and not fair value in the Consolidated balance sheets.
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Chubb Limited and Subsidiaries
Financial instruments measured at fair value on a recurring basis, by valuation hierarchy

September 30, 2023 | Level 1 |  | Level 2 |  | Level 3 |  | Total
(in millions of U.S. dollars) |  |  |
Assets: |  |  |  |  |  |  |
Fixed maturities available for sale |  |  |  |  |  |  |
U.S. Treasury / Agency | $ | 3,084 |  |  | $ | 597 |  |  | $ | — |  |  | $ | 3,681 |
Non-U.S. | — |  |  | 32,084 |  |  | 633 |  |  | 32,717 |
Corporate and asset-backed securities | — |  |  | 38,286 |  |  | 2,569 |  |  | 40,855 |
Mortgage-backed securities | — |  |  | 19,580 |  |  | 25 |  |  | 19,605 |
Municipal | — |  |  | 2,908 |  |  | — |  |  | 2,908 |
| 3,084 |  |  | 93,455 |  |  | 3,227 |  |  | 99,766 |
Equity securities | 3,310 |  |  | — |  |  | 85 |  |  | 3,395 |
Short-term investments | 2,546 |  |  | 2,906 |  |  | 2 |  |  | 5,454 |
Other investments (1) | 569 |  |  | 4,364 |  |  | — |  |  | 4,933 |
Securities lending collateral | — |  |  | 1,469 |  |  | — |  |  | 1,469 |
Investment derivatives | 42 |  |  | — |  |  | — |  |  | 42 |
Derivatives designated as hedging instruments | — |  |  | 48 |  |  | — |  |  | 48 |
Other derivative instruments | 53 |  |  | — |  |  | — |  |  | 53 |
Separate account assets | 5,217 |  |  | 89 |  |  | — |  |  | 5,306 |
Total assets measured at fair value (1)(2) | $ | 14,821 |  |  | $ | 102,331 |  |  | $ | 3,314 |  |  | $ | 120,466 |
Liabilities: |  |  |  |  |  |  |
Investment derivatives | $ | 168 |  |  | $ | — |  |  | $ | — |  |  | $ | 168 |
Derivatives designated as hedging instruments | — |  |  | 68 |  |  | — |  |  | 68 |
Other derivative instruments | — |  |  | 4 |  |  | — |  |  | 4 |
Market risk benefits (3) | — |  |  | — |  |  | 770 |  |  | 770 |
Total liabilities measured at fair value | $ | 168 |  |  | $ | 72 |  |  | $ | 770 |  |  | $ | 1,010 |

(1)Excluded from the table above are policy loans of $603 million, and other investments of $47 million at September 30, 2023, measured using NAV as a practical expedient.
(2)Excluded from the table above are partially-owned investments, investment funds, and limited partnerships of $13,362 million at September 30, 2023, measured using NAV as a practical expedient.
(3)Refer to Note 11 for additional information on Market risk benefits.
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Chubb Limited and Subsidiaries

December 31, 2022 | Level 1 |  | Level 2 |  | Level 3 |  | Total
(in millions of U.S. dollars) |  |  |
Assets: |  |  |  |  |  |  |
Fixed maturities available for sale |  |  |  |  |  |  |
U.S. Treasury / Agency | $ | 2,100 |  |  | $ | 526 |  |  | $ | — |  |  | $ | 2,626 |
Non-U.S. | — |  |  | 25,344 |  |  | 564 |  |  | 25,908 |
Corporate and asset-backed securities | — |  |  | 34,506 |  |  | 2,449 |  |  | 36,955 |
Mortgage-backed securities | — |  |  | 15,840 |  |  | 11 |  |  | 15,851 |
Municipal | — |  |  | 3,880 |  |  | — |  |  | 3,880 |
| 2,100 |  |  | 80,096 |  |  | 3,024 |  |  | 85,220 |
Equity securities | 737 |  |  | — |  |  | 90 |  |  | 827 |
Short-term investments | 3,108 |  |  | 1,849 |  |  | 3 |  |  | 4,960 |
Other investments (1) | 552 |  |  | 399 |  |  | — |  |  | 951 |
Securities lending collateral | — |  |  | 1,523 |  |  | — |  |  | 1,523 |
Investment derivative instruments | 82 |  |  | — |  |  | — |  |  | 82 |
Derivatives designated as hedging instruments | — |  |  | 17 |  |  | — |  |  | 17 |
Other derivative instruments | 33 |  |  | — |  |  | — |  |  | 33 |
Separate account assets | 5,101 |  |  | 89 |  |  | — |  |  | 5,190 |
Total assets measured at fair value (1)(2) | $ | 11,713 |  |  | $ | 83,973 |  |  | $ | 3,117 |  |  | $ | 98,803 |
Liabilities: |  |  |  |  |  |  |
Investment derivatives | $ | 139 |  |  | $ | — |  |  | $ | — |  |  | $ | 139 |
Derivatives designated as hedging instruments | — |  |  | 53 |  |  | — |  |  | 53 |
Market risk benefits (3) | — |  |  | — |  |  | 800 |  |  | 800 |
Total liabilities measured at fair value | $ | 139 |  |  | $ | 53 |  |  | $ | 800 |  |  | $ | 992 |

(1)Excluded from the table above are policy loans of $343 million and other investments of $47 million at December 31, 2022, measured using NAV as a practical expedient.
(2)Excluded from the table above are partially-owned investments, investment funds, and limited partnerships of $12,355 million at December 31, 2022, measured using NAV as a practical expedient.
(3)Refer to Note 11 for additional information on Market risk benefits.
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Chubb Limited and Subsidiaries
Level 3 financial instruments
The following tables present a reconciliation of the beginning and ending balances of financial instruments measured at fair value using significant unobservable inputs (Level 3). Excluded from the following tables is the reconciliation of Market risk benefits, refer to Note 11 for additional information:

Three Months Ended September 30, 2023 (in millions of U.S. dollars) |  |  | Available-for-Sale Debt Securities |  |  |  | Equity securities |  | Short-term investments
|  | Non-U.S. |  | Corporate and asset- backed securities |  | Mortgage-backed securities |  |  |  |
Balance, beginning of period |  |  | $ | 649 |  |  | $ | 2,524 |  |  | $ | 10 |  |  |  |  |  |  | $ | 86 |  |  | $ | 3 |
Transfers into Level 3 |  |  | — |  |  | — |  |  | — |  |  |  |  |  |  | — |  |  | — |
Transfers out of Level 3 |  |  | (22) |  |  | (10) |  |  | — |  |  |  |  |  |  | — |  |  | — |
Change in Net Unrealized Gains/Losses in OCI |  |  | (6) |  |  | 6 |  |  | — |  |  |  |  |  |  | — |  |  | — |
Net Realized Gains/Losses |  |  | (2) |  |  | (4) |  |  | — |  |  |  |  |  |  | — |  |  | — |
Purchases |  |  | 46 |  |  | 158 |  |  | 16 |  |  |  |  |  |  | 4 |  |  | — |
Sales |  |  | (17) |  |  | (40) |  |  | — |  |  |  |  |  |  | (5) |  |  | (1) |
Settlements |  |  | (15) |  |  | (65) |  |  | (1) |  |  |  |  |  |  | — |  |  | — |
Balance, end of period |  |  | $ | 633 |  |  | $ | 2,569 |  |  | $ | 25 |  |  |  |  |  |  | $ | 85 |  |  | $ | 2 |
Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet date |  |  | $ | (1) |  |  | $ | (4) |  |  | $ | — |  |  |  |  |  |  | $ | — |  |  | $ | — |
Change in Net Unrealized Gains/Losses included in OCI at the Balance Sheet date |  |  | $ | (8) |  |  | $ | 4 |  |  | $ | — |  |  |  |  |  |  | $ | — |  |  | $ | — |

Three Months Ended September 30, 2022 (in millions of U.S. dollars) |  |  | Available-for-Sale Debt Securities |  |  |  | Equity securities |  | Short-term investments
| Non-U.S. |  | Corporate and asset- backed securities |  | Mortgage-backed securities |  |
Balance, beginning of period |  |  | $ | 549 |  |  | $ | 2,261 |  |  | $ | 19 |  |  |  |  | $ | 81 |  |  | $ | 9 |
Transfers into Level 3 |  |  | — |  |  | 2 |  |  | — |  |  |  |  | — |  |  | — |
Transfers out of Level 3 |  |  | — |  |  | (4) |  |  | — |  |  |  |  | — |  |  | — |
Change in Net Unrealized Gains/Losses in OCI |  |  | (34) |  |  | (16) |  |  | — |  |  |  |  | — |  |  | — |
Net Realized Gains/Losses |  |  | (4) |  |  | (9) |  |  | — |  |  |  |  | 3 |  |  | (1) |
Purchases |  |  | 39 |  |  | 164 |  |  | 4 |  |  |  |  | 3 |  |  | 1 |
Sales |  |  | (19) |  |  | (8) |  |  | — |  |  |  |  | (4) |  |  | — |
Settlements |  |  | (25) |  |  | (94) |  |  | (4) |  |  |  |  | — |  |  | (6) |
Balance, end of period |  |  | $ | 506 |  |  | $ | 2,296 |  |  | $ | 19 |  |  |  |  | $ | 83 |  |  | $ | 3 |
Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet date |  |  | $ | (1) |  |  | $ | (3) |  |  | $ | — |  |  |  |  | $ | 3 |  |  | $ | (1) |
Change in Net Unrealized Gains/Losses included in OCI at the Balance Sheet date |  |  | $ | (35) |  |  | $ | (19) |  |  | $ | — |  |  |  |  | $ | — |  |  | $ | — |

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Chubb Limited and Subsidiaries

Nine Months Ended September 30, 2023 (in millions of U.S. dollars) |  |  | Available-for-Sale Debt Securities |  |  |  | Equity securities |  | Short-term investments
|  | Non-U.S. |  | Corporate and asset- backed securities |  | Mortgage-backed securities |  |  |  |
Balance, beginning of period |  |  | $ | 564 |  |  | $ | 2,449 |  |  | $ | 11 |  |  |  |  |  |  | $ | 90 |  |  | $ | 3 |
Transfers into Level 3 |  |  | 21 |  |  | 3 |  |  | — |  |  |  |  |  |  | — |  |  | — |
Transfers out of Level 3 |  |  | (22) |  |  | (23) |  |  | — |  |  |  |  |  |  | — |  |  | — |
Change in Net Unrealized Gains/Losses in OCI |  |  | 5 |  |  | 8 |  |  | — |  |  |  |  |  |  | — |  |  | (1) |
Net Realized Gains/Losses |  |  | (3) |  |  | (7) |  |  | — |  |  |  |  |  |  | (6) |  |  | — |
Purchases |  |  | 151 |  |  | 481 |  |  | 16 |  |  |  |  |  |  | 15 |  |  | 3 |
Sales |  |  | (52) |  |  | (70) |  |  | — |  |  |  |  |  |  | (14) |  |  | (3) |
Settlements |  |  | (31) |  |  | (272) |  |  | (2) |  |  |  |  |  |  | — |  |  | — |
Balance, end of period |  |  | $ | 633 |  |  | $ | 2,569 |  |  | $ | 25 |  |  |  |  |  |  | $ | 85 |  |  | $ | 2 |
Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet date |  |  | $ | (1) |  |  | $ | (6) |  |  | $ | — |  |  |  |  |  |  | $ | (6) |  |  | $ | — |
Change in Net Unrealized Gains/Losses included in OCI at the Balance Sheet date |  |  | $ | 1 |  |  | $ | 2 |  |  | $ | — |  |  |  |  |  |  | $ | — |  |  | $ | — |

Nine Months Ended September 30, 2022 (in millions of U.S. dollars) |  |  | Available-for-Sale Debt Securities |  |  |  | Equity securities |  | Short-term investments
| Non-U.S. |  | Corporate and asset- backed securities |  | Mortgage-backed securities |  |
Balance, beginning of period |  |  | $ | 633 |  |  | $ | 2,049 |  |  | $ | 26 |  |  |  |  | $ | 77 |  |  | $ | 7 |
Transfers into Level 3 |  |  | 23 |  |  | 41 |  |  | — |  |  |  |  | 1 |  |  | — |
Transfers out of Level 3 |  |  | (23) |  |  | (97) |  |  | (5) |  |  |  |  | — |  |  | — |
Change in Net Unrealized Gains/Losses in OCI |  |  | (88) |  |  | (68) |  |  | — |  |  |  |  | — |  |  | — |
Net Realized Gains/Losses |  |  | (6) |  |  | (9) |  |  | — |  |  |  |  | 7 |  |  | (1) |
Purchases |  |  | 108 |  |  | 658 |  |  | 4 |  |  |  |  | 6 |  |  | 8 |
Sales |  |  | (44) |  |  | (59) |  |  | — |  |  |  |  | (8) |  |  | — |
Settlements |  |  | (97) |  |  | (219) |  |  | (6) |  |  |  |  | — |  |  | (11) |
Balance, end of period |  |  | $ | 506 |  |  | $ | 2,296 |  |  | $ | 19 |  |  |  |  | $ | 83 |  |  | $ | 3 |
Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet date |  |  | $ | (3) |  |  | $ | (4) |  |  | $ | — |  |  |  |  | $ | 6 |  |  | $ | (1) |
Change in Net Unrealized Gains/Losses included in OCI at the Balance Sheet date |  |  | $ | (89) |  |  | $ | (71) |  |  | $ | — |  |  |  |  | $ | — |  |  | $ | — |

b) Financial instruments disclosed, but not measured, at fair value
Chubb uses various financial instruments in the normal course of its business. Our insurance contracts are excluded from fair value of financial instruments accounting guidance, and therefore, are not included in the amounts discussed below.
The carrying values of cash, other assets, other liabilities, and other financial instruments not included below approximated their fair values. Refer to the 2022 Form 10-K for information on the fair value methods and assumptions for investments in partially-owned insurance companies, short-term and long-term debt, repurchase agreements, and trust-preferred securities.
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Chubb Limited and Subsidiaries
The following tables present fair value, by valuation hierarchy, and carrying value of the financial instruments not measured at fair value:

September 30, 2023 | Fair Value |  | Net Carrying Value
(in millions of U.S. dollars) | Level 1 |  | Level 2 |  | Level 3 |  | Total |
Assets: |  |  |  |  |  |  |  |  |
Private debt held-for-investment | $ | — |  |  | $ | — |  |  | $ | 2,389 |  |  | $ | 2,389 |  |  | $ | 2,401 |
Total assets | $ | — |  |  | $ | — |  |  | $ | 2,389 |  |  | $ | 2,389 |  |  | $ | 2,401 |
Liabilities: |  |  |  |  |  |  |  |  |
Repurchase agreements | $ | — |  |  | $ | 2,617 |  |  | $ | — |  |  | $ | 2,617 |  |  | $ | 2,617 |
Short-term debt | — |  |  | 688 |  |  | — |  |  | 688 |  |  | 700 |
Long-term debt | — |  |  | 11,627 |  |  | — |  |  | 11,627 |  |  | 13,736 |
Trust preferred securities | — |  |  | 362 |  |  | — |  |  | 362 |  |  | 308 |
Total liabilities | $ | — |  |  | $ | 15,294 |  |  | $ | — |  |  | $ | 15,294 |  |  | $ | 17,361 |

Private debt held-for-investment is related to Huatai and its consolidation. The fair value of Private debt held-for-investment is derived using a discounted cash flow approach, which includes an evaluation of forecasted contractual cash flows and yield curve information, among other loan characteristics and assumptions. These assumptions are derived from internal and third party sources. Since the valuation is derived from model-based techniques, Private debt held-for-investment is classified within Level 3 of the valuation hierarchy.

December 31, 2022 | Fair Value |  | Net Carrying Value
(in millions of U.S. dollars) | Level 1 |  | Level 2 |  | Level 3 |  | Total |
Assets: |  |  |  |  |  |  |  |  |
Fixed maturities held to maturity |  |  |  |  |  |  |  |  |
U.S. Treasury / Agency | $ | 1,299 |  |  | $ | 71 |  |  | $ | — |  |  | $ | 1,370 |  |  | $ | 1,417 |
Non-U.S. | — |  |  | 1,054 |  |  | — |  |  | 1,054 |  |  | 1,136 |
Corporate and asset-backed securities | — |  |  | 1,580 |  |  | — |  |  | 1,580 |  |  | 1,705 |
Mortgage-backed securities | — |  |  | 1,351 |  |  | — |  |  | 1,351 |  |  | 1,455 |
Municipal | — |  |  | 3,084 |  |  | — |  |  | 3,084 |  |  | 3,135 |
Total assets | $ | 1,299 |  |  | $ | 7,140 |  |  | $ | — |  |  | $ | 8,439 |  |  | $ | 8,848 |
Liabilities: |  |  |  |  |  |  |  |  |
Repurchase agreements | $ | — |  |  | $ | 1,419 |  |  | $ | — |  |  | $ | 1,419 |  |  | $ | 1,419 |
Short-term debt | — |  |  | 473 |  |  | — |  |  | 473 |  |  | 475 |
Long-term debt | — |  |  | 12,495 |  |  | — |  |  | 12,495 |  |  | 14,402 |
Trust preferred securities | — |  |  | 383 |  |  | — |  |  | 383 |  |  | 308 |
Total liabilities | $ | — |  |  | $ | 14,770 |  |  | $ | — |  |  | $ | 14,770 |  |  | $ | 16,604 |

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Chubb Limited and Subsidiaries
5. Reinsurance
Reinsurance recoverable on ceded reinsurance

|  | September 30, 2023 |  | December 31, 2022
(in millions of U.S. dollars) | Net Reinsurance Recoverable (1) |  | Valuation allowance | Net Reinsurance Recoverable (1) |  | Valuation allowance
Reinsurance recoverable on unpaid losses and loss expenses | $ | 17,808 |  |  | $ | 318 |  |  | $ | 17,086 |  |  | $ | 289 |
Reinsurance recoverable on paid losses and loss expenses | 1,942 |  |  | 52 |  |  | 1,773 |  |  | 62 |
Reinsurance recoverable on losses and loss expenses | $ | 19,750 |  |  | $ | 370 |  |  | $ | 18,859 |  |  | $ | 351 |
Reinsurance recoverable on policy benefits | $ | 315 |  |  | $ | 1 |  |  | $ | 302 |  |  | $ | 4 |

(1)Net of valuation allowance for uncollectible reinsurance.
The increase in reinsurance recoverable on losses and loss expenses was primarily due to the consolidation of Huatai and unfavorable prior period development on ceded reserves.
The following table presents a roll-forward of valuation allowance for uncollectible reinsurance related to Reinsurance recoverable on loss and loss expenses:

| Nine Months Ended
| September 30
(in millions of U.S. dollars) | 2023 |  | 2022
Valuation allowance for uncollectible reinsurance - beginning of period | $ | 351 |  |  | $ | 329 |
Provision for uncollectible reinsurance | 27 |  |  | 30 |
Write-offs charged against the valuation allowance | (8) |  |  | (4) |
Foreign exchange revaluation | — |  |  | (3) |
Valuation allowance for uncollectible reinsurance - end of period | $ | 370 |  |  | $ | 352 |

For additional information, refer to Note 1 d) to the Consolidated Financial Statements of our 2022 Form 10-K.
6. Deferred acquisition costs
Deferred acquisition costs comprise capitalized costs on short-duration contracts of $3,283 million and $2,809 million and long-duration contracts of $3,573 million and $2,979 million at September 30, 2023, and September 30, 2022, respectively. The assumptions used to amortize DAC were consistent with the assumptions used to estimate the liability for future policy benefits for nonparticipating traditional and limited-payment contracts.
The following tables present a roll-forward of deferred acquisitions costs on long-duration contracts included in the Life Insurance segment:

| Nine Months Ended September 30, 2023
(in millions of U.S. dollars) | Term Life |  | Universal Life |  | Whole Life |  | A&H |  | Other |  | Total
Balance – beginning of period | $ | 320 |  |  | $ | 776 |  |  | $ | 395 |  |  | $ | 902 |  |  | $ | 121 |  |  | $ | 2,514 |
Capitalizations | 118 |  |  | 85 |  |  | 102 |  |  | 392 |  |  | 25 |  |  | 722 |
Amortization expense | (74) |  |  | (57) |  |  | (16) |  |  | (100) |  |  | (15) |  |  | (262) |
Other (including foreign exchange) | 8 |  |  | (20) |  |  | 7 |  |  | (13) |  |  | (4) |  |  | (22) |
Balance - end of period | $ | 372 |  |  | $ | 784 |  |  | $ | 488 |  |  | $ | 1,181 |  |  | $ | 127 |  |  | $ | 2,952 |
Overseas General Insurance segment excluded from table |  |  |  |  |  |  |  |  |  |  | 621 |
Total deferred acquisition costs on long-duration contracts |  |  |  |  |  |  |  |  |  |  | $ | 3,573 |

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Chubb Limited and Subsidiaries

| Nine Months Ended September 30, 2022
(in millions of U.S. dollars) | Term Life |  | Universal Life |  | Whole Life |  | A&H |  | Other |  | Total
Balance – beginning of period | $ | 246 |  |  | $ | 771 |  |  | $ | 334 |  |  | $ | 745 |  |  | $ | 108 |  |  | $ | 2,204 |
Capitalizations | 111 |  |  | 95 |  |  | 46 |  |  | 166 |  |  | 39 |  |  | 457 |
Amortization expense | (56) |  |  | (55) |  |  | (14) |  |  | (72) |  |  | (16) |  |  | (213) |
Other (including foreign exchange) | (2) |  |  | (50) |  |  | (16) |  |  | (20) |  |  | (14) |  |  | (102) |
Balance - end of period | $ | 299 |  |  | $ | 761 |  |  | $ | 350 |  |  | $ | 819 |  |  | $ | 117 |  |  | $ | 2,346 |
Overseas General Insurance segment excluded from table |  |  |  |  |  |  |  |  |  |  | 633 |
Total deferred acquisition costs on long-duration contracts |  |  |  |  |  |  |  |  |  |  | $ | 2,979 |

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Chubb Limited and Subsidiaries
7. Goodwill, Value of business acquired, and Other intangible assets
Goodwill
The following table presents a roll-forward of Goodwill by segment:

(in millions of U.S. dollars) | North America Commercial P&C Insurance |  | North America Personal P&C Insurance |  | North America Agricultural Insurance |  | Overseas General Insurance |  | Global Reinsurance |  | Life Insurance |  | Chubb Consolidated
Balance at December 31, 2022 | $ | 6,945 |  |  | $ | 2,230 |  |  | $ | 134 |  |  | $ | 4,605 |  |  | $ | 371 |  |  | $ | 1,943 |  |  | $ | 16,228 |
Consolidation of Huatai Group (1) | — |  |  | — |  |  | — |  |  | 562 |  |  | — |  |  | 2,832 |  |  | 3,394 |
Foreign exchange revaluation and other | — |  |  | — |  |  | — |  |  | 44 |  |  | — |  |  | (112) |  |  | (68) |
Balance at September 30, 2023 | $ | 6,945 |  |  | $ | 2,230 |  |  | $ | 134 |  |  | $ | 5,211 |  |  | $ | 371 |  |  | $ | 4,663 |  |  | $ | 19,554 |

(1)Includes $1.0 billion attributable to noncontrolling interests.
Value of business acquired
Value of business acquired (VOBA) represents the fair value of the future profits of in-force long duration contracts from businesses acquired, principally Cigna's Asian business, and is amortized in relation to the profit emergence of the underlying contracts. The VOBA calculation is based on many factors including mortality, morbidity, persistency, investment yields, expenses, and the discount rate, with the discount rate being the most significant factor.
The following table presents a roll-forward of VOBA:

| Nine Months Ended
| September 30 |  |
(in millions of U.S. dollars) | 2023 |  |
Balance, beginning of period | $ | 3,702 |  |  |
Consolidation of Huatai Group | 309 |  |  |
Amortization of VOBA (1) | (235) |  |  |
Foreign exchange revaluation and other | (101) |  |  |
Balance, end of period | $ | 3,675 |  |  |

(1)Recognized in Policy acquisition costs in the Consolidated statements of operations.
The following table presents, as of September 30, 2023, the expected estimated pre-tax amortization expense related to VOBA at current foreign currency rates, for the fourth quarter of 2023 and for the next five years:

For the Years Ending December 31 (in millions of U.S. dollars) | Total amortization of VOBA
Fourth quarter of 2023 | $ | 67 |
2024 | 270 |
2025 | 230 |
2026 | 202 |
2027 | 181 |
2028 | 165
Total | $ | 1,115 |

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Chubb Limited and Subsidiaries
Other intangible assets
Other intangible assets that are subject to amortization principally relate to agency distribution relationships, renewal rights, and patents. Other intangible assets that are not subject to amortization principally relate to trademarks. For other intangible assets related to the consolidation of Huatai, refer to Note 2.

(in millions of U.S. dollars) |  | September 30 2023 |  | December 31 2022
Subject to amortization |  | $ | 3,350 |  |  | $ | 2,459 |
Not subject to amortization |  | 3,494 |  |  | 2,982 |
Total |  | $ | 6,844 |  |  | $ | 5,441 |

The following table presents, as of September 30, 2023, the expected pre-tax amortization expense of purchased intangibles, at current foreign currency exchange rates, for the fourth quarter of 2023 and for the next five years:

For the Years Ending December 31 (in millions of U.S. dollars) |  |  |  |  |  |  |  |  | Total amortization of purchased intangibles |  | Amortization of Huatai UPR intangible asset (1) |  | Amortization of Huatai land use rights (2) |  | Total amortization
Fourth quarter of 2023 |  |  |  |  |  |  |  |  | $ | 84 |  |  | $ | 16 |  |  | $ | 3 |  |  | $ | 103 |
2024 |  |  |  |  |  |  |  |  | 312 |  |  | 30 |  |  | 12 |  |  | 354 |
2025 |  |  |  |  |  |  |  |  | 286 |  |  | 16 |  |  | 12 |  |  | 314 |
2026 |  |  |  |  |  |  |  |  | 269 |  |  | 7 |  |  | 12 |  |  | 288 |
2027 |  |  |  |  |  |  |  |  | 249 |  |  | 3 |  |  | 13 |  |  | 265 |
2028 |  |  |  |  |  |  |  |  | 240 |  |  | — |  |  | 13 |  |  | 253 |
Total |  |  |  |  |  |  |  |  | $ | 1,440 |  |  | $ | 72 |  |  | $ | 65 |  |  | $ | 1,577 |

(1)Recognized in Policy acquisition costs in the Consolidated statements of operations.
(2)Recognized in Other (income) expense in the Consolidated statements of operations.
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Chubb Limited and Subsidiaries
8. Unpaid losses and loss expenses
The following table presents a reconciliation of beginning and ending Unpaid losses and loss expenses:

| Nine Months Ended
| September 30
| 2023 |  | 2022
(in millions of U.S. dollars) |  |  | As Adjusted
Gross unpaid losses and loss expenses – beginning of period | $ | 75,747 |  |  | $ | 72,330 |
Reinsurance recoverable on unpaid losses – beginning of period (1) | (17,086) |  |  | (16,132) |
Net unpaid losses and loss expenses – beginning of period | 58,661 |  |  | 56,198 |
Net losses and loss expenses incurred in respect of losses occurring in: |  |  |
Current year | 18,604 |  |  | 17,755 |
Prior years (2) | (667) |  |  | (922) |
Total | 17,937 |  |  | 16,833 |
Net losses and loss expenses paid in respect of losses occurring in: |  |  |
Current year | 4,853 |  |  | 4,511 |
Prior years | 10,158 |  |  | 9,217 |
Total | 15,011 |  |  | 13,728 |
Consolidation of Huatai Group | 405 |  |  | — |
Foreign currency revaluation and other | (95) |  |  | (1,280) |
Net unpaid losses and loss expenses – end of period | 61,897 |  |  | 58,023 |
Reinsurance recoverable on unpaid losses (1) | 17,808 |  |  | 17,313 |
Gross unpaid losses and loss expenses – end of period | $ | 79,705 |  |  | $ | 75,336 |

(1) Net of valuation allowance for uncollectible reinsurance.
(2) Relates to prior period loss reserve development only and excludes prior period development related to reinstatement premiums, expense adjustments, earned premiums, and development on international A&H lines totaling $71 million and $213 million for the nine months ended September 30, 2023 and 2022, respectively.
Gross and net unpaid losses and loss expenses increased $4.0 billion and $3.2 billion for the nine months ended September 30, 2023, respectively, principally reflecting underlying exposure growth and the consolidation of Huatai. The increase in net unpaid losses also reflected seasonality in our crop insurance business. This increase was partially offset by favorable prior period development and by large payments related to the Boy Scouts of America.
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Chubb Limited and Subsidiaries
Prior Period Development
Prior period development (PPD) arises from changes to loss estimates recognized in the current year that relate to loss events that occurred in previous calendar years and excludes the effect of losses from the development of earned premium from previous accident years. Long-tail lines include lines such as workers' compensation, general liability, and financial lines; while short-tail lines include lines such as most property lines, energy, personal accident, and agriculture.
The following table summarizes (favorable) and adverse PPD by segment:

| Three Months Ended September 30 |  | Nine Months Ended September 30
(in millions of U.S. dollars) | Long-tail |  | Short-tail |  | Total |  | Long-tail |  | Short-tail |  | Total
2023 |  |  |  |  |  |  |  |  |  |  |
North America Commercial P&C Insurance | $ | 107 |  |  | $ | (191) |  |  | $ | (84) |  |  | $ | (23) |  |  | $ | (279) |  |  | $ | (302) |
North America Personal P&C Insurance | — |  |  | (119) |  |  | (119) |  |  | — |  |  | (135) |  |  | (135) |
North America Agricultural Insurance | — |  |  | (9) |  |  | (9) |  |  | — |  |  | (12) |  |  | (12) |
Overseas General Insurance | (52) |  |  | 3 |  |  | (49) |  |  | (52) |  |  | (201) |  |  | (253) |
Global Reinsurance | — |  |  | — |  |  | — |  |  | 7 |  |  | (32) |  |  | (25) |
Corporate | 61 |  |  | — |  |  | 61 |  |  | 131 |  |  | — |  |  | 131 |
Total | $ | 116 |  |  | $ | (316) |  |  | $ | (200) |  |  | $ | 63 |  |  | $ | (659) |  |  | $ | (596) |
2022 |  |  |  |  |  |  |  |  |  |  |
North America Commercial P&C Insurance | $ | (29) |  |  | $ | (137) |  |  | $ | (166) |  |  | $ | (315) |  |  | $ | (246) |  |  | $ | (561) |
North America Personal P&C Insurance | — |  |  | (133) |  |  | (133) |  |  | — |  |  | (187) |  |  | (187) |
North America Agricultural Insurance | — |  |  | 9 |  |  | 9 |  |  | — |  |  | (17) |  |  | (17) |
Overseas General Insurance | (5) |  |  | — |  |  | (5) |  |  | (5) |  |  | (233) |  |  | (238) |
Global Reinsurance | — |  |  | — |  |  | — |  |  | (7) |  |  | 29 |  |  | 22 |
Corporate | 73 |  |  | — |  |  | 73 |  |  | 272 |  |  | — |  |  | 272 |
Total | $ | 39 |  |  | $ | (261) |  |  | $ | (222) |  |  | $ | (55) |  |  | $ | (654) |  |  | $ | (709) |

Significant prior period movements by segment, principally driven by reserve reviews completed during each respective period, are discussed in more detail below. The remaining net development for long-tail lines and short-tail business for each segment and Corporate comprises numerous favorable and adverse movements across a number of lines and accident years, none of which is significant individually or in the aggregate.
North America Commercial P&C Insurance. Net favorable development for the three months ended September 30, 2023 included $71 million in workers' compensation lines, mainly due to lower than expected loss experience, and $188 million in commercial property and marine lines, mainly due to net lower than expected development impacting the most recent accident years. The favorable development was partially offset by adverse development of $222 million in commercial excess and umbrella lines, driven by higher than expected loss development, principally related to automobile exposures.
Net favorable development for the nine months ended September 30, 2023 included $379 million in workers' compensation lines, $113 million in commercial property and marine lines, and $101 million in surety, all mainly driven by lower than expected development. These favorable movements were partially offset by adverse development of $227 million in commercial excess and umbrella lines and $125 million in commercial auto liability, both driven by higher than expected loss experience.
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Chubb Limited and Subsidiaries
Net favorable development for the three months ended September 30, 2022 included $164 million from lower than expected loss experience in workers’ compensation lines and $66 million, net of premium adjustments, from lower claims activity in large multi-line loss sensitive accounts. The favorable development was partially offset by net adverse development of $58 million from higher than expected claims severity in commercial auto liability, and $71 million in commercial umbrella/excess portfolios. Net favorable development on our short-tail businesses primarily included $132 million in property and marine portfolios, where paid and reported loss activity for the most recent accident years was lower than expected. Net favorable development for the nine months ended September 30, 2022 also included favorable development in workers’ compensation lines due to updates to loss development factors and our annual assessment of multi-claimant events, including industrial accidents.
North America Personal P&C Insurance. Net favorable development for the three and nine months ended September 30, 2023 included $263 million and $244 million, respectively, in homeowners and valuables lines, mainly due to lower than expected loss experience in accident year 2022. The favorable development was partially offset by net adverse development of $145 million in the three months ended September 30, 2023 in personal excess liability due to adverse development on reported losses.
Net favorable development for the three and nine months ended September 30, 2022 included favorable development in the homeowners and valuables lines of business, driven by lower than expected claims reserve development.
Overseas General Insurance. Net favorable development for the three months ended September 30, 2023 included favorable loss emergence in financial lines of $77 million primarily in accident years 2019 and prior of partially offset by net adverse development of $51 million in political risks. Net favorable development for the nine months ended September 30, 2023, also included net favorable development of $147 million in property and marine lines, and $45 million in A&H lines.
Net favorable development for the three months ended September 30, 2022, included lower than expected paid and reported loss activity of $82 million in casualty lines, including primary and excess lines in Continental Europe, the U.K., and Asia Pacific, and $34 million in environmental lines. The favorable development was partially offset by net adverse development of $114 million in financial lines, including Directors and Officers (D&O) due to a combination of higher than expected development on specific claims and increased expected future development in the U.K., Continental Europe, Asia Pacific, and London wholesale business. Net favorable development for the nine months ended September 30, 2022, also included net favorable development of $75 million in A&H lines, $67 million in property lines, and $53 million in personal lines.
Corporate. Net adverse development for the three months ended September 30, 2023 and 2022, included adverse development for environmental liabilities. Net adverse development for the nine months ended September 30, 2023 and 2022 also included adverse development for molestation claims of $49 million and $155 million, respectively.
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Chubb Limited and Subsidiaries
9. Future policy benefits
The following tables present a roll-forward of the liability for future policy benefits included in the Life Insurance segment:

Present Value of Expected Net Premiums | Nine Months Ended September 30, 2023
(in millions of U.S. dollars) | Term Life |  | Whole Life |  | A&H |  | Other |  | Total
Balance – beginning of period | $ | 818 |  |  | $ | 2,301 |  |  | $ | 9,863 |  |  | $ | 42 |  |  | $ | 13,024 |
Beginning balance at original discount rate | 879 |  |  | 2,354 |  |  | 10,409 |  |  | 43 |  |  | 13,685 |
Effect of changes in cash flow assumptions | 35 |  |  | 40 |  |  | (811) |  |  | 2 |  |  | (734) |
Effect of actual variances from expected experience | (13) |  |  | 6 |  |  | (120) |  |  | — |  |  | (127) |
Adjusted beginning of period balance | 901 |  |  | 2,400 |  |  | 9,478 |  |  | 45 |  |  | 12,824 |
Consolidation of Huatai Group | 3 |  |  | 1,690 |  |  | 145 |  |  | 12 |  |  | 1,850 |
Issuances | 90 |  |  | 274 |  |  | 1,066 |  |  | 5 |  |  | 1,435 |
Interest accrual | 45 |  |  | 62 |  |  | 421 |  |  | 1 |  |  | 529 |
Net premiums collected (1) | (127) |  |  | (375) |  |  | (998) |  |  | (15) |  |  | (1,515) |
Other (including foreign exchange) | (9) |  |  | (56) |  |  | (212) |  |  | 18 |  |  | (259) |
Ending balance at original discount rate | 903 |  |  | 3,995 |  |  | 9,900 |  |  | 66 |  |  | 14,864 |
Effect of changes in discount rate assumptions | (69) |  |  | (62) |  |  | (497) |  |  | (1) |  |  | (629) |
Balance – end of period | $ | 834 |  |  | $ | 3,933 |  |  | $ | 9,403 |  |  | $ | 65 |  |  | $ | 14,235 |

(1)Net premiums collected represent the portion of gross premiums collected from policyholders that is used to fund expected benefit.

Present Value of Expected Future Policy Benefits | Nine Months Ended September 30, 2023
(in millions of U.S. dollars) | Term Life |  | Whole Life |  | A&H |  | Other |  | Total
Balance – beginning of period | $ | 1,427 |  |  | $ | 6,048 |  |  | $ | 14,206 |  |  | $ | 239 |  |  | $ | 21,920 |
Beginning balance at original discount rate | 1,555 |  |  | 6,225 |  |  | 15,022 |  |  | 250 |  |  | 23,052 |
Effect of changes in cash flow assumptions | 31 |  |  | 44 |  |  | (848) |  |  | 3 |  |  | (770) |
Effect of actual variances from expected experience | (10) |  |  | 12 |  |  | (114) |  |  | — |  |  | (112) |
Adjusted beginning of period balance | 1,576 |  |  | 6,281 |  |  | 14,060 |  |  | 253 |  |  | 22,170 |
Consolidation of Huatai Group | 17 |  |  | 3,659 |  |  | 163 |  |  | 298 |  |  | 4,137 |
Issuances | 90 |  |  | 276 |  |  | 1,065 |  |  | 5 |  |  | 1,436 |
Interest accrual | 54 |  |  | 176 |  |  | 514 |  |  | 6 |  |  | 750 |
Benefits payments | (119) |  |  | (212) |  |  | (1,065) |  |  | (8) |  |  | (1,404) |
Other (including foreign exchange) | 92 |  |  | 22 |  |  | (628) |  |  | 178 |  |  | (336) |
Ending balance at original discount rate | 1,710 |  |  | 10,202 |  |  | 14,109 |  |  | 732 |  |  | 26,753 |
Effect of changes in discount rate assumptions | (152) |  |  | (274) |  |  | (790) |  |  | (11) |  |  | (1,227) |
Balance – end of period | $ | 1,558 |  |  | $ | 9,928 |  |  | $ | 13,319 |  |  | $ | 721 |  |  | $ | 25,526 |

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| September 30, 2023
Liability for Future Policy Benefits | Life Insurance |  | Overseas General Insurance |  | Chubb Consolidated
(in millions of U.S. dollars, except for years) | Term Life |  | Whole Life |  | A&H |  | Other |  | A&H |  | Total
Net liability for future policy benefits | $ | 724 |  |  | $ | 5,995 |  |  | $ | 3,916 |  |  | $ | 656 |  |  | $ | 718 |  |  | $ | 12,009 |
Deferred profit liability | 223 |  |  | 707 |  |  | 156 |  |  | 14 |  |  | — |  |  | 1,100 |
Net liability for future policy benefits, per consolidated balance sheet | 947 |  |  | 6,702 |  |  | 4,072 |  |  | 670 |  |  | 718 |  |  | 13,109 |
Less: Reinsurance recoverable on future policy benefits | 111 |  |  | 47 |  |  | 103 |  |  | 21 |  |  | 33 |  |  | 315 |
Net liability for future policy benefits, after reinsurance recoverable | $ | 836 |  |  | $ | 6,655 |  |  | $ | 3,969 |  |  | $ | 649 |  |  | $ | 685 |  |  | $ | 12,794 |
Weighted-average duration (years) | 10.2 |  | 26.5 |  | 10.3 |  | 15.1 |  | 4.9 |  | 18.7

Present Value of Expected Net Premiums | Nine Months Ended September 30, 2022
(in millions of U.S. dollars) | Term Life |  | Whole Life |  | A&H |  | Other |  | Total
Balance – beginning of period | $ | 422 |  |  | $ | 1,341 |  |  | $ | 2,520 |  |  | $ | 30 |  |  | $ | 4,313 |
Beginning balance at original discount rate | 397 |  |  | 1,243 |  |  | 2,323 |  |  | 28 |  |  | 3,991 |
Effect of changes in cash flow assumptions | — |  |  | (3) |  |  | (29) |  |  | — |  |  | (32) |
Effect of actuarial variances from expected experience | (31) |  |  | 12 |  |  | (120) |  |  | — |  |  | (139) |
Adjusted beginning of period balance | 366 |  |  | 1,252 |  |  | 2,174 |  |  | 28 |  |  | 3,820 |
Acquisition of Cigna | 445 |  |  | 1,078 |  |  | 8,191 |  |  | 23 |  |  | 9,737 |
Issuances | 95 |  |  | 155 |  |  | 348 |  |  | 3 |  |  | 601 |
Interest accrual | 45 |  |  | 37 |  |  | 184 |  |  | 1 |  |  | 267 |
Net premiums collected (1) | (93) |  |  | (156) |  |  | (445) |  |  | (9) |  |  | (703) |
Other (including foreign exchange) | (46) |  |  | (102) |  |  | (487) |  |  | (4) |  |  | (639) |
Ending balance at original discount rate | 812 |  |  | 2,264 |  |  | 9,965 |  |  | 42 |  |  | 13,083 |
Effect of changes in discount rate assumptions | (59) |  |  | (95) |  |  | (531) |  |  | (1) |  |  | (686) |
Balance – end of period | $ | 753 |  |  | $ | 2,169 |  |  | $ | 9,434 |  |  | $ | 41 |  |  | $ | 12,397 |

(1)Net premiums collected represent the portion of gross premiums collected from policyholders that is used to fund expected benefit.
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Chubb Limited and Subsidiaries

Present Value of Expected Future Policy Benefits | Nine Months Ended September 30, 2022
(in millions of U.S. dollars) | Term Life |  | Whole Life |  | A&H |  | Other |  | Total
Balance – beginning of period | $ | 921 |  |  | $ | 4,785 |  |  | $ | 4,939 |  |  | $ | 130 |  |  | $ | 10,775 |
Beginning balance at original discount rate | 858 |  |  | 3,833 |  |  | 4,589 |  |  | 122 |  |  | 9,402 |
Effect of changes in cash flow assumptions | (5) |  |  | (3) |  |  | (41) |  |  | 11 |  |  | (38) |
Effect of actuarial variances from expected experience | (32) |  |  | 14 |  |  | (126) |  |  | — |  |  | (144) |
Adjusted beginning of period balance | 821 |  |  | 3,844 |  |  | 4,422 |  |  | 133 |  |  | 9,220 |
Acquisition of Cigna | 668 |  |  | 2,267 |  |  | 10,542 |  |  | 106 |  |  | 13,583 |
Issuances | 100 |  |  | 155 |  |  | 348 |  |  | 3 |  |  | 606 |
Interest accrual | 52 |  |  | 123 |  |  | 242 |  |  | 3 |  |  | 420 |
Benefits payments | (82) |  |  | (151) |  |  | (469) |  |  | (2) |  |  | (704) |
Other (including foreign exchange) | (112) |  |  | (207) |  |  | (651) |  |  | (102) |  |  | (1,072) |
Ending balance at original discount rate | 1,447 |  |  | 6,031 |  |  | 14,434 |  |  | 141 |  |  | 22,053 |
Effect of changes in discount rate assumptions | (126) |  |  | (308) |  |  | (790) |  |  | (16) |  |  | (1,240) |
Balance – end of period | $ | 1,321 |  |  | $ | 5,723 |  |  | $ | 13,644 |  |  | $ | 125 |  |  | $ | 20,813 |

| September 30, 2022
Liability for Future Policy Benefits | Life Insurance |  | Overseas General Insurance |  | Chubb Consolidated
(in millions of U.S. dollars, except for years) | Term Life |  | Whole Life |  | A&H |  | Other |  | A&H |  | Total
Net liability for future policy benefits | $ | 568 |  |  | $ | 3,554 |  |  | $ | 4,210 |  |  | $ | 84 |  |  | $ | 735 |  |  | $ | 9,151 |
Deferred profit liability | 172 |  |  | 450 |  |  | 125 |  |  | 8 |  |  | — |  |  | 755 |
Net liability for future policy benefits, per consolidated balance sheet | 740 |  |  | 4,004 |  |  | 4,335 |  |  | 92 |  |  | 735 |  |  | 9,906 |
Less: Reinsurance recoverable on future policy benefits | 111 |  |  | 56 |  |  | 107 |  |  | — |  |  | 38 |  |  | 312 |
Net liability for future policy benefits, after reinsurance recoverable | $ | 629 |  |  | $ | 3,948 |  |  | $ | 4,228 |  |  | $ | 92 |  |  | $ | 697 |  |  | $ | 9,594 |
Weighted-average duration (years) | 9.0 |  | 24.7 |  | 11.0 |  | 13.5 |  | 5.1 |  | 16.2

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The following table presents the amount of undiscounted expected gross premiums and expected future policy benefit payments included in the Life Insurance segment:

| September 30 |  | September 30 |
(in millions of U.S. dollars) | 2023 |  | 2022 |
Term Life |  |  |  |
Undiscounted expected future benefit payments | $ | 2,492 |  |  | $ | 2,189 |  |
Undiscounted expected future gross premiums | $ | 2,884 |  |  | $ | 2,503 |  |
Discounted expected future benefit payments | $ | 1,558 |  |  | $ | 1,321 |  |
Discounted expected future gross premiums | $ | 1,910 |  |  | $ | 1,682 |  |
Whole Life |  |  |  |
Undiscounted expected future benefit payments | $ | 23,457 |  |  | $ | 15,631 |  |
Undiscounted expected future gross premiums | $ | 9,478 |  |  | $ | 6,654 |  |
Discounted expected future benefit payments | $ | 9,928 |  |  | $ | 5,723 |  |
Discounted expected future gross premiums | $ | 7,654 |  |  | $ | 5,173 |  |
A&H |  |  |  |
Undiscounted expected future benefit payments | $ | 23,168 |  |  | $ | 23,873 |  |
Undiscounted expected future gross premiums | $ | 34,055 |  |  | $ | 34,659 |  |
Discounted expected future benefit payments | $ | 13,319 |  |  | $ | 13,644 |  |
Discounted expected future gross premiums | $ | 20,604 |  |  | $ | 20,193 |  |
Other |  |  |  |
Undiscounted expected future benefit payments | $ | 977 |  |  | $ | 265 |  |
Undiscounted expected future gross premiums | $ | 103 |  |  | $ | 102 |  |
Discounted expected future benefit payments | $ | 721 |  |  | $ | 125 |  |
Discounted expected future gross premiums | $ | 92 |  |  | $ | 92 |  |

The following table presents the amount of revenue and interest recognized in the statement of operations:

| Gross Premiums or Assessments |  | Interest Accretion |
| Nine Months Ended |  | Nine Months Ended |
| September 30 |  | September 30 |
(in millions of U.S. dollars) | 2023 |  | 2022 |  | 2023 |  | 2022 |
Life Insurance |  |  |  |  |  |  |  |
Term Life | $ | 511 |  |  | $ | 361 |  |  | $ | 9 |  |  | $ | 7 |  |
Whole Life | 858 |  |  | 411 |  |  | 114 |  |  | 86 |  |
A&H | 2,171 |  |  | 1,226 |  |  | 93 |  |  | 58 |  |
Other | 54 |  |  | 71 |  |  | 5 |  |  | 2 |  |
Overseas General Insurance |  |  |  |  |  |  |  |
A&H | 1,175 |  |  | 1,075 |  |  | — |  |  | — |  |
Total | $ | 4,769 |  |  | $ | 3,144 |  |  | $ | 221 |  |  | $ | 153 |  |

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Chubb Limited and Subsidiaries
The following table presents the weighted-average interest rates:

| Interest Accretion Rate |  | Current Discount Rate |
| September 30 |  | September 30 |
| 2023 |  | 2022 |  | 2023 |  | 2022 |
Life Insurance |  |  |  |  |  |  |  |
Term Life | 2.9 | % |  | 2.6 | % |  | 6.0 | % |  | 6.1 | % |
Whole Life | 3.2 | % |  | 3.9 | % |  | 4.7 | % |  | 5.5 | % |
A&H | 3.7 | % |  | 3.6 | % |  | 6.7 | % |  | 6.1 | % |
Other | 2.6 | % |  | 3.7 | % |  | 4.3 | % |  | 6.2 | % |

10. Policyholders' account balances
The following tables present a roll-forward of policyholders' account balances:

| Nine Months Ended September 30, 2023
(in millions of U.S. dollars) | Universal Life |  | Other |  | Total
Balance – beginning of period | $ | 1,719 |  |  | $ | 1,421 |  |  | $ | 3,140 |
Consolidation of Huatai Group | 602 |  |  | 3,412 |  |  | 4,014 |
Premiums received | 275 |  |  | 228 |  |  | 503 |
Policy charges (1) | (135) |  |  | (8) |  |  | (143) |
Surrenders and withdrawals | (69) |  |  | (113) |  |  | (182) |
Benefit payments | (6) |  |  | (81) |  |  | (87) |
Interest credited | 39 |  |  | 43 |  |  | 82 |
Other (including foreign exchange) | (42) |  |  | (107) |  |  | (149) |
Balance, end of period | $ | 2,383 |  |  | $ | 4,795 |  |  | $ | 7,178 |

| Nine Months Ended September 30, 2022
(in millions of U.S. dollars) | Universal Life |  | Other |  | Total
Balance – beginning of period | $ | 1,612 |  |  | $ | 1,154 |  |  | $ | 2,766 |
Acquisition of Cigna | 10 |  |  | 345 |  |  | 355 |
Premiums received | 292 |  |  | 55 |  |  | 347 |
Policy charges (1) | (141) |  |  | (8) |  |  | (149) |
Surrenders and withdrawals | (55) |  |  | (39) |  |  | (94) |
Benefit payments | (3) |  |  | (15) |  |  | (18) |
Interest credited | 30 |  |  | 25 |  |  | 55 |
Other (including foreign exchange) | (69) |  |  | (185) |  |  | (254) |
Balance, end of period | $ | 1,676 |  |  | $ | 1,332 |  |  | $ | 3,008 |

(1)Contracts included in the policyholder account balances are generally charged a premium and/or monthly assessments on the basis of the account balance.
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| September 30
| 2023 |  | 2022
(in millions of U.S. dollars, except for percentages) | Universal Life |  | Other |  | Universal Life |  | Other
Weighted-average crediting rate | 3.8 | % |  | 2.1 | % |  | 3.7 | % |  | 2.6 | %
Net amount at risk (1) | $ | 10,493 |  |  | $ | 1,675 |  |  | $ | 10,116 |  |  | $ | 1,503 |
Cash Surrender Value | $ | 1,596 |  |  | $ | 3,655 |  |  | $ | 934 |  |  | $ | 1,280 |

(1)For those guarantees of benefits that are payable in the event of death, the net amount at risk is defined as the current guaranteed minimum death benefit in excess of the current account balance at the balance sheet date.
The following tables present the balance of account values by range of guaranteed minimum crediting rates and the related range of difference, in basis points, between rates being credited to policyholders and the respective guaranteed minimum:
Universal Life

| September 30, 2023
(in millions of U.S. dollars) | At Guaranteed Minimum |  | 1 Basis Point - 50 Basis Points Above |  | 51 Basis Points - 150 Basis Points Above |  | Greater Than 150 Basis Points Above |  | Total
Guaranteed minimum crediting rates |  |  |  |  |  |  |  |  |
Up to 2.00% | $ | 3 |  |  | $ | — |  |  | $ | 56 |  |  | $ | 563 |  |  | $ | 622 |
2.01% – 4.00% | 472 |  |  | 377 |  |  | 558 |  |  | 333 |  |  | 1,740 |
Greater than 4.00% | 21 |  |  | — |  |  | — |  |  | — |  |  | 21 |
Total | $ | 496 |  |  | $ | 377 |  |  | $ | 614 |  |  | $ | 896 |  |  | $ | 2,383 |

| September 30, 2022
(in millions of U.S. dollars) | At Guaranteed Minimum |  | 1 Basis Point - 50 Basis Points Above |  | 51 Basis Points - 150 Basis Points Above |  | Greater Than 150 Basis Points Above |  | Total
Guaranteed minimum crediting rates |  |  |  |  |  |  |  |  |
Up to 2.00% | $ | 3 |  |  | $ | — |  |  | $ | 59 |  |  | $ | 505 |  |  | $ | 567 |
2.01% – 4.00% | 456 |  |  | 394 |  |  | 228 |  |  | — |  |  | 1,078 |
Greater than 4.00% | 31 |  |  | — |  |  | — |  |  | — |  |  | 31 |
Total | $ | 490 |  |  | $ | 394 |  |  | $ | 287 |  |  | $ | 505 |  |  | $ | 1,676 |

Other policyholders' account balances

| September 30, 2023
(in millions of U.S. dollars) | At Guaranteed Minimum |  | 1 Basis Point - 50 Basis Points Above |  | 51 Basis Points - 150 Basis Points Above |  | Greater Than 150 Basis Points Above |  | Total
Guaranteed minimum crediting rates |  |  |  |  |  |  |  |  |
Up to 2.00% | $ | 1,328 |  |  | $ | — |  |  | $ | 1,719 |  |  | $ | 799 |  |  | $ | 3,846 |
2.01% – 4.00% | 112 |  |  | 487 |  |  | 27 |  |  | — |  |  | 626 |
Greater than 4.00% | 323 |  |  | — |  |  | — |  |  | — |  |  | 323 |
Total | $ | 1,763 |  |  | $ | 487 |  |  | $ | 1,746 |  |  | $ | 799 |  |  | $ | 4,795 |

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Chubb Limited and Subsidiaries

| September 30, 2022
(in millions of U.S. dollars) | At Guaranteed Minimum |  | 1 Basis Point - 50 Basis Points Above |  | 51 Basis Points - 150 Basis Points Above |  | Greater Than 150 Basis Points Above |  | Total
Guaranteed minimum crediting rates |  |  |  |  |  |  |  |  |
Up to 2.00% | $ | 411 |  |  | $ | — |  |  | $ | 191 |  |  | $ | 424 |  |  | $ | 1,026 |
2.01% – 4.00% | — |  |  | — |  |  | — |  |  | — |  |  | — |
Greater than 4.00% | 306 |  |  | — |  |  | — |  |  | — |  |  | 306 |
Total | $ | 717 |  |  | $ | — |  |  | $ | 191 |  |  | $ | 424 |  |  | $ | 1,332 |

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11. Market risk benefits
Our reinsurance programs covering variable annuity guarantees, comprising guaranteed living benefits (GLB) and guaranteed minimum death benefits (GMDB), meet the definition of Market risk benefits (MRB). The following table presents a roll-forward of MRB:

| Nine Months Ended September 30
(in millions of U.S. dollars) | 2023 |  | 2022
Balance – beginning of period | $ | 800 |  |  | $ | 812 |
Balance, beginning of period, before effect of changes in the instrument-specific credit risk | 776 |  |  | 755 |
Interest rate changes | (117) |  |  | (561) |
Effect of changes in equity markets | (69) |  |  | 633 |
Effect of changes in volatilities | 51 |  |  | 14 |
Effect of changes in future expected policyholder behavior | 89 |  |  | 40 |
Effect of timing and all other | 19 |  |  | (29) |
Balance, end of period, before effect of changes in the instrument-specific credit risk | $ | 749 |  |  | $ | 852 |
Effect of changes in the instrument-specific credit risk | 21 |  |  | 9 |
Balance – end of period | $ | 770 |  |  | $ | 861 |
Weighted-average age of policyholders (years) | 73 |  | 73
Net amount at risk | $ | 2,138 |  |  | $ | 2,885 |

Excluded from the table above are MRB gains (losses) of $(181) million and $186 million for the nine months ended September 30, 2023 and 2022, respectively, reported in the Consolidated statements of operations, relating to the market risk benefits' economic hedge and other net cash flows. There is no reinsurance recoverable associated with our liability for MRB.
In the third quarter of 2023, we completed a review of policyholder behavior related to annuitizations, partial withdrawals, lapses, and mortality for our variable annuity reinsurance business.
•As annuitization and partial withdrawal experience continued to emerge, we refined our assumptions for an additional year of data. The annuitization assumption updates included treaty-based and age-based behavior, as well as a refresh of our annuitization rates which depend on the value of the guarantees. These refinements resulted in a net increase of approximately $92 million to the MRB fair value, recognized as a Market risk benefits loss.
•We also refined our lapse and mortality assumptions based on additional emerging experience. The changes had an insignificant impact on the MRB fair value.
For MRB, Chubb estimates fair value using an internal valuation model which includes a number of factors including interest rates, equity markets, credit risk, current account value, market volatility, expected annuitization rates and other policyholder behavior, and changes in policyholder mortality. All reinsurance treaties contain claim limits, which are also factored into the valuation model.

|  |  | Valuation Technique |  | Significant Unobservable Inputs |  | September 30, 2023 |  | September 30, 2022
|  |  | Ranges |  | Weighted Average(1) |  | Ranges |  | Weighted Average(1)
MRB (1) |  |  | Actuarial model |  | Lapse rate |  | 0.5% – 30% |  | 4.0 | % |  | 0.5% – 30.4% |  | 3.8 | %
|  |  |  |  | Annuitization rate |  | 0% – 100% |  | 4.8 | % |  | 0% – 100% |  | 4.6 | %

(1)The weighted-average lapse and annuitization rates are determined by weighting each treaty's rates by the MRB contract's fair value.
The most significant policyholder behavior assumptions include lapse rates for MRBs, and GLB annuitization rates. Assumptions regarding lapse rates and GLB annuitization rates differ by treaty, but the underlying methodologies to determine rates applied to each treaty are comparable.
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A lapse rate is the percentage of in-force policies surrendered in a given calendar year. All else equal, as lapse rates increase, ultimate claim payments will decrease. In general, the base lapse function assumes low lapse rates during the surrender charge period, followed by a "spike" lapse rate in the year immediately following the surrender charge period, and then reverting to an ultimate lapse rate, typically over a 2-year period. This base rate is adjusted downward for policies with more valuable guarantees (policies with guaranteed values far in excess of their account values). Partial withdrawals and the impact of older policyholders with tax-qualified contracts (due to required minimum distributions) are also reflected in our modeling.
The GLB annuitization rate is the percentage of policies for which the policyholder will elect to annuitize using the guaranteed benefit provided under the GLB. All else equal, as GLB annuitization rates increase, ultimate claim payments will increase, subject to treaty claim limits. All GLB reinsurance treaties include claim limits to protect Chubb in the event that actual annuitization behavior is significantly higher than expected. In general, Chubb assumes that GLB annuitization rates will be higher for policies with more valuable guarantees (policies with guaranteed values far in excess of their account values). Chubb also assumes that GLB annuitization rates increase as policyholders get older. In addition, it is also assumed that GLB annuitization rates are higher in the first year immediately following the waiting period (the first year the policies are eligible to annuitize using the GLB) in comparison to all subsequent years. Chubb does not yet have fully credible annuitization experience for all clients.
The effect of changes in key market factors on assumed lapse and annuitization rates reflect emerging trends using data available from cedants. For treaties with limited experience, rates are established by blending the experience with data received from other ceding companies. The model and related assumptions are regularly re-evaluated by management and enhanced, as appropriate, based upon additional experience obtained related to policyholder behavior and availability of updated information such as market conditions, market participant assumptions, and demographics of in-force annuities.
12. Separate accounts
Separate account assets represent segregated funds where investment risks are borne by the customers, except to the extent of certain guarantees made by Chubb. The assets that support variable contracts are measured at fair value and are reported as Separate account assets and corresponding liabilities are reported within Separate account liabilities on the Consolidated balance sheets. Policy charges assessed against the policyholders for mortality, administration, and other services are included in Net premiums earned on the Consolidated statements of operations.
The following table presents the aggregate fair value of Separate account assets, by major security type:

| September 30 |  | December 31
(in millions of U.S. dollars) | 2023 |  | 2022
Cash and cash equivalents | $ | 88 |  |  | $ | 141 |
Mutual funds | 5,129 |  |  | 4,960 |
Fixed maturities | 89 |  |  | 89 |
Total | $ | 5,306 |  |  | $ | 5,190 |

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Chubb Limited and Subsidiaries
The following table presents a roll-forward of separate account liabilities:

| Nine Months Ended
| September 30
(in millions of U.S. dollars) | 2023 |  | 2022
Balance – beginning of period | $ | 5,190 |  |  | $ | 5,560 |
Acquisition of Cigna | — |  |  | 301 |
Premiums and deposits | 724 |  |  | 1,147 |
Policy charges | (103) |  |  | (93) |
Surrenders and withdrawals | (407) |  |  | (304) |
Benefit payments | (291) |  |  | (289) |
Investment performance | 382 |  |  | (978) |
Other (including foreign exchange) | (189) |  |  | (453) |
Balance – end of period | $ | 5,306 |  |  | $ | 4,891 |
Cash surrender value (1) | $ | 5,285 |  |  | $ | 4,771 |

(1) Cash surrender value represents the amount of the contract holder's account balances distributable at the balance sheet date less certain surrender charges.
13. Commitments, contingencies, and guarantees
a) Derivative instruments
Chubb maintains positions in derivative instruments such as futures, options, swaps, and foreign currency forward contracts for which the primary purposes are to manage duration and foreign currency exposure, yield enhancement, or to obtain an exposure to a particular financial market. Chubb also maintains positions in convertible securities that contain embedded derivatives, and exchange-traded equity futures contracts on equity market indices to limit equity exposure in the MRB book of business. Investment derivative instruments and derivatives designated as hedges for accounting purposes are recorded in either Other assets (OA) or Accounts payable, accrued expenses, and other liabilities (AP); convertible bonds are recorded in Fixed maturities available for sale (FM AFS); and convertible equity securities are recorded in Equity securities (ES) in the Consolidated balance sheets. These are the most numerous and frequent derivative transactions. In addition, Chubb, from time to time, purchases to be announced mortgage-backed securities (TBAs) as part of its investing activities.
As a global company, Chubb entities transact business in multiple currencies. Our policy is to generally match assets, liabilities, and required capital for each individual jurisdiction in local currency, which would include the use of derivatives discussed below. Some of Chubb's derivatives satisfy hedge accounting requirements, as discussed below. We also consider economic hedging for planned cross border transactions.
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The following table presents the balance sheet location, fair value of derivative instruments in an asset or (liability) position, and notional value/payment provision of our derivative instruments:

|  |  |  |  | September 30, 2023 |  |  |  |  |  | December 31, 2022
| Consolidated Balance Sheet Location |  | Fair Value |  | Notional Value/ Payment Provision |  |  |  | Fair Value |  | Notional Value/ Payment Provision
(in millions of U.S. dollars) |  | Derivative Asset |  | Derivative (Liability) |  |  |  | Derivative Asset |  | Derivative (Liability) |
Investment and embedded derivatives not designated as hedging instruments: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Foreign currency forward contracts | OA / (AP) |  | $ | 15 |  |  | $ | (147) |  |  | $ | 3,711 |  |  |  |  | $ | 64 |  |  | $ | (115) |  |  | $ | 4,134 |
Options/Futures contracts on notes and bonds | OA / (AP) |  | 27 |  |  | (21) |  |  | 2,150 |  |  |  |  | 18 |  |  | (24) |  |  | 1,511 |
Convertible securities (1) | FM AFS / ES |  | 53 |  |  | — |  |  | 61 |  |  |  |  | 30 |  |  | — |  |  | 37 |
|  |  | $ | 95 |  |  | $ | (168) |  |  | $ | 5,922 |  |  |  |  | $ | 112 |  |  | $ | (139) |  |  | $ | 5,682 |
Other derivative instruments: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Futures contracts on equities (2) | OA / (AP) |  | $ | 48 |  |  | $ | — |  |  | $ | 1,119 |  |  |  |  | $ | 33 |  |  | $ | — |  |  | $ | 939 |
Other | OA / (AP) |  | 5 |  |  | (4) |  |  | 368 |  |  |  |  | — |  |  | — |  |  | — |
|  |  | $ | 53 |  |  | $ | (4) |  |  | $ | 1,487 |  |  |  |  | $ | 33 |  |  | $ | — |  |  | $ | 939 |
Derivatives designated as hedging instruments: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cross-currency swaps - fair value hedges | OA / (AP) |  | $ | 48 |  |  | $ | — |  |  | $ | 1,609 |  |  |  |  | $ | 17 |  |  | $ | — |  |  | $ | 1,595 |
Cross-currency swaps - net investment hedges | OA / (AP) |  | — |  |  | (68) |  |  | 1,594 |  |  |  |  | — |  |  | (53) |  |  | 1,604 |
|  |  | $ | 48 |  |  | $ | (68) |  |  | $ | 3,203 |  |  |  |  | $ | 17 |  |  | $ | (53) |  |  | $ | 3,199 |

(1)Includes fair value of embedded derivatives.
(2)Related to MRB book of business.
At September 30, 2023, and December 31, 2022, net derivative liabilities of $97 million and $60 million, respectively, included in the table above were subject to a master netting agreement. The remaining derivatives included in the table above were not subject to a master netting agreement.
b) Hedge accounting
We designate certain derivatives as fair value hedges and net investment hedges for accounting purposes to hedge for foreign currency exposure associated with portions of our euro denominated debt and the net investment in certain foreign subsidiaries, respectively. These derivatives comprise cross-currency swaps, which are agreements under which two counterparties exchange interest payments and principal denominated in different currencies at a future date.
(i) Cross-currency swaps - fair value hedges
In September 2022, Chubb entered into certain cross-currency swaps designated as fair value hedges. The objective of these cross-currency swaps is to hedge the foreign currency risk on €1.5 billion, or approximately $1.6 billion at September 30, 2023, of our euro denominated debt, by converting cash flows back into the U.S. dollar.
These fair value hedges are carried at fair value. The hedges are expected to be highly effective, with gains or losses on the fair value hedges offsetting the foreign currency remeasurement on the hedged euro denominated senior notes within Net realized gains (losses). The remaining change in fair value is recorded in Other comprehensive income (OCI), with an immaterial amount recorded in Interest expense.
The following table presents pre-tax gains (losses) recognized in OCI and reclassified into earnings for fair value hedges:
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| Three Months Ended |  | Nine Months Ended
| September 30 |  | September 30
(in millions of U.S. dollars) | 2023 | 2022 |  | 2023 | 2022
Gain/(loss) recognized in OCI | $ | (17) |  | $ | (94) |  |  | $ | 23 |  | $ | (94) |
Net realized gain/(loss) reclassified from OCI | (51) |  | (32) |  |  | (20) |  | (32) |
Interest expense reclassified from OCI | (4) |  | — |  |  | (12) |  | — |
OCI gain/(loss) after reclassifications | $ | 38 |  | $ | (62) |  |  | $ | 55 |  | $ | (62) |

(ii) Cross-currency swaps - net investment hedges
In September 2022, Chubb entered into certain cross-currency swaps designated as net investment hedges. The objective of these cross-currency swaps is to hedge the foreign currency exposure in the net investments of certain foreign subsidiaries by converting cash flows from U.S. dollar to the British pound sterling, Japanese yen, and Swiss franc. The hedged risk is designated as the foreign currency exposure arising between the functional currency of the foreign subsidiary and the functional currency of its parent entity.
These net investment hedges are carried at fair value, with changes in fair value recorded in Cumulative translation adjustments (CTA) within OCI, and an immaterial amount recorded to Interest expense. The mark-to-market adjustments for foreign currency changes will remain until the underlying hedge subsidiary is deconsolidated or if hedge accounting is discontinued.
The following table presents pre-tax gains (losses) recognized in OCI and reclassified into earnings for net investment hedges:

| Three Months Ended |  | Nine Months Ended
| September 30 |  | September 30
(in millions of U.S. dollars) | 2023 | 2022 |  | 2023 | 2022
Gain/(loss) recognized in OCI | $ | (20) |  | $ | 64 |  |  | $ | (8) |  | $ | 64 |
Interest income reclassified from OCI | 3 |  | — |  |  | 10 |  | — |
OCI gain/(loss) after reclassifications | $ | (23) |  | $ | 64 |  |  | $ | (18) |  | $ | 64 |

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c) Derivative instruments not designated as hedges
Derivative instruments which are not designated as hedges are carried at fair value with changes in fair value recorded in Net realized gains (losses) or, for futures contracts on equities, Market risk benefits gains (losses) in the Consolidated statements of operations. The following table presents net realized gains (losses) related to derivative instrument activity in the Consolidated statements of operations:

| Three Months Ended |  | Nine Months Ended
| September 30 |  | September 30
(in millions of U.S. dollars) | 2023 |  | 2022 |  | 2023 |  | 2022
Investment and embedded derivative instruments: |  |  |  |  |  |  |
Foreign currency forward contracts | $ | (17) |  |  | $ | (247) |  |  | $ | (95) |  |  | $ | (515) |
All other futures contracts, options, and equities | 29 |  |  | 49 |  |  | 5 |  |  | 285 |
Convertible securities (1) | (3) |  |  | — |  |  | (2) |  |  | (2) |
Total investment and embedded derivative instruments | $ | 9 |  |  | $ | (198) |  |  | $ | (92) |  |  | $ | (232) |
Other derivative instruments: |  |  |  |  |  |  |
Futures contracts on equities (2) | $ | 52 |  |  | $ | 54 |  |  | $ | (80) |  |  | $ | 240 |
Other | (7) |  |  | (19) |  |  | (6) |  |  | (9) |
Total other derivative instruments | $ | 45 |  |  | $ | 35 |  |  | $ | (86) |  |  | $ | 231 |
| $ | 54 |  |  | $ | (163) |  |  | $ | (178) |  |  | $ | (1) |

(1)Includes embedded derivatives.
(2)Related to MRB book of business.
(i) Foreign currency exposure management
A foreign currency forward contract (forward) is an agreement between participants to exchange specific currencies at a future date. Chubb uses forwards to minimize the effect of fluctuating foreign currencies as discussed above.
(ii) Duration management and market exposure
Futures
Futures contracts give the holder the right and obligation to participate in market movements, determined by the index or underlying security on which the futures contract is based. Settlement is made daily in cash by an amount equal to the change in value of the futures contract times a multiplier that scales the size of the contract. Exchange-traded futures contracts on money market instruments, notes and bonds are used in fixed maturity portfolios to more efficiently manage duration, as substitutes for ownership of the money market instruments, bonds, and notes without significantly increasing the risk in the portfolio. Investments in futures contracts may be made only to the extent that there are assets under management not otherwise committed.
Exchange-traded equity futures contracts are used to limit exposure to a severe equity market decline, which would cause an increase in expected claims and, therefore, an increase in market risk benefit reserves.
Options
An option contract conveys to the holder the right, but not the obligation, to purchase or sell a specified amount or value of an underlying security at a fixed price. Option contracts are used in our investment portfolio as protection against unexpected shifts in interest rates, which would affect the duration of the fixed maturity portfolio. By using options in the portfolio, the overall interest rate sensitivity of the portfolio can be reduced. Option contracts may also be used as an alternative to futures contracts in the synthetic strategy as described above.
The price of an option is influenced by the underlying security, level of interest rates, expected volatility, time to expiration, and supply and demand.
The credit risk associated with the above derivative financial instruments relates to the potential for non-performance by counterparties. Although non-performance is not anticipated, in order to minimize the risk of loss, management monitors the creditworthiness of its counterparties and obtains collateral. The performance of exchange-traded instruments is guaranteed by
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the exchange on which they trade. For non-exchange-traded instruments, the counterparties are principally banks which must meet certain criteria according to our investment guidelines.
Other
Included within Other are derivatives intended to reduce potential losses which may arise from certain exposures in our insurance business. The economic benefit provided by these derivatives is similar to purchased reinsurance. For example, Chubb may, from time to time, enter into crop derivative contracts to protect underwriting results in the event of a significant decline in commodity prices.
(iii) Convertible security investments
A convertible security is a debt instrument or preferred stock that can be converted into a predetermined amount of the issuer’s equity. The convertible option is an embedded derivative within the host instruments which are classified in the investment portfolio as either available for sale or as an equity security. Chubb purchases convertible securities for their total return and not specifically for the conversion feature.
(iv) TBA
By acquiring TBAs, we make a commitment to purchase a future issuance of mortgage-backed securities. For the period between purchase of the TBAs and issuance of the underlying security, we account for our position as a derivative in the Consolidated Financial Statements. Chubb purchases TBAs, from time to time, both for their total return and for the flexibility they provide related to our mortgage-backed security strategy.
(v) Futures contracts on equities
Under the MRB program, as the assuming entity, Chubb is obligated to provide coverage until the expiration or maturity of the underlying deferred annuity contracts or the expiry of the reinsurance treaty. We may recognize a loss for changes in fair value due to adverse changes in the capital markets (e.g., declining interest rates and/or declining U.S. and/or international equity markets). To mitigate adverse changes in the capital markets, we maintain positions in exchange-traded equity futures contracts, as noted under section "(ii) Futures" above. These futures increase in fair value when the S&P 500 index decreases (and decrease in fair value when the S&P 500 index increases). The net impact of gains or losses related to changes in fair value of the MRB liability and the exchange-traded equity futures are included in Market risk benefits gains (losses) in the Consolidated statements of operations.
d) Securities lending and secured borrowings
Chubb participates in a securities lending program operated by a third-party banking institution whereby certain assets are loaned to qualified borrowers and from which we earn an incremental return. The securities lending collateral can only be drawn down by Chubb in the event that the institution borrowing the securities is in default under the lending agreement. An indemnification agreement with the lending agent protects us in the event a borrower becomes insolvent or fails to return any of the securities on loan. The collateral is recorded in Securities lending collateral and the liability is recorded in Securities lending payable in the Consolidated balance sheets.
The following table presents the carrying value of collateral held under securities lending agreements by investment category and remaining contractual maturity of the underlying agreements:

|  |  |  |  |  |  | Remaining contractual maturity
|  |  |  |  |  |  | September 30, 2023 |  | December 31, 2022
(in millions of U.S. dollars) |  |  |  |  |  |  | Overnight and Continuous
Collateral held under securities lending agreements: |  |  |  |  |  |  |  |  |
Cash |  |  |  |  |  |  | $ | 762 |  |  | $ | 820 |
U.S. Treasury / Agency |  |  |  |  |  |  | 81 |  |  | 72 |
Non-U.S. |  |  |  |  |  |  | 555 |  |  | 604 |
Corporate and asset-backed securities |  |  |  |  |  |  | 47 |  |  | 27 |
Municipal |  |  |  |  |  |  | 6 |  |  | — |
Equity securities |  |  |  |  |  |  | 18 |  |  | — |
|  |  |  |  |  |  | $ | 1,469 |  |  | $ | 1,523 |
Gross amount of recognized liability for securities lending payable |  |  |  |  |  |  | $ | 1,469 |  |  | $ | 1,523 |

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At September 30, 2023, and December 31, 2022, our repurchase agreement obligations of $2,617 million and $1,419 million, respectively, were fully collateralized. In contrast to securities lending programs, the use of cash received is not restricted for the repurchase obligations. The fair value of the underlying securities sold remains in Fixed maturities available for sale, and the repurchase agreement obligation is recorded in Repurchase agreements in the Consolidated balance sheets.
The following table presents the carrying value of collateral pledged under repurchase agreements by investment category and remaining contractual maturity of the underlying agreements:

| Remaining contractual maturity
| September 30, 2023 |  | December 31, 2022
| Up to 30 Days |  | 30-90 Days |  | Greater than 90 Days |  | Total |  | Up to 30 Days |  | 30-90 Days |  |  |  | Total
(in millions of U.S. dollars) |  |  |  |  |  |  |
Collateral pledged under repurchase agreements: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash | $ | — |  |  | $ | — |  |  | $ | 46 |  |  | $ | 46 |  |  | $ | 12 |  |  | $ | — |  |  |  |  | $ | 12 |
Non-U.S. | 1,138 |  |  | — |  |  | — |  |  | $ | 1,138 |  |  | — |  |  | — |  |  |  |  | $ | — |
U.S. Treasury / Agency | — |  |  | 103 |  |  | — |  |  | 103 |  |  | — |  |  | 101 |  |  |  |  | 101 |
Mortgage-backed securities | 50 |  |  | 507 |  |  | 909 |  |  | 1,466 |  |  | 921 |  |  | 493 |  |  |  |  | 1,414 |
| $ | 1,188 |  |  | $ | 610 |  |  | $ | 955 |  |  | $ | 2,753 |  |  | $ | 933 |  |  | $ | 594 |  |  |  |  | $ | 1,527 |
Gross amount of recognized liabilities for repurchase agreements |  |  |  |  |  |  | $ | 2,617 |  |  |  |  |  |  |  |  | $ | 1,419 |
Difference (1) |  |  |  |  |  |  | $ | 136 |  |  |  |  |  |  |  |  | $ | 108 |

(1)Per the repurchase agreements, the amount of collateral posted is required to exceed the amount of gross liability.
Potential risks exist in our secured borrowing transactions due to market conditions and counterparty exposure. With collateral that we pledge, there is a risk that the collateral may not be returned at the expiration of the agreement. If the counterparty fails to return the collateral, Chubb will have free use of the borrowed funds until our collateral is returned. In addition, we may encounter the risk that Chubb may not be able to renew outstanding borrowings with a new term or with an existing counterparty due to market conditions including a decrease in demand as well as more restrictive terms from banks due to increased regulatory and capital constraints. Should this condition occur, Chubb may seek alternative borrowing sources or reduce borrowings. Additionally, increased margins and collateral requirements due to market conditions would increase our restricted assets as we are required to provide additional collateral to support the transaction.
e) Fixed maturities
At September 30, 2023, and December 31, 2022, commitments to purchase fixed income securities over the next several years were $1,075 million and $770 million, respectively.
f) Private equities
At September 30, 2023, included in Private equities in the Consolidated balance sheet are investments in limited partnerships and partially-owned investment companies with a carrying value of $13.1 billion. In connection with these investments, we have commitments that may require funding of up to $6.3 billion over the next several years. At December 31, 2022, these investments had a carrying value of $12.0 billion with commitments that may have required funding of up to $7.4 billion.
g) Income taxes
At September 30, 2023, $67 million of unrecognized tax benefits remain out standing. It is reasonably possible that, over the next twelve months, the amount of unrecognized tax benefits may change resulting from the re-evaluation of unrecognized tax benefits arising from examinations by taxing authorities, settlements, and the lapses of statutes of limitations. With few exceptions, Chubb is no longer subject to income tax examinations for years before 2012.
h) Legal proceedings
Our insurance subsidiaries are subject to claims litigation involving disputed interpretations of policy coverages and, in some jurisdictions, direct actions by allegedly-injured persons seeking damages from policyholders. These lawsuits, involving claims on policies issued by our subsidiaries which are typical to the insurance industry in general and in the normal course of business, are considered in our loss and loss expense reserves. In addition to claims litigation, we are subject to lawsuits and
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regulatory actions in the normal course of business that do not arise from or directly relate to claims on insurance policies. This category of business litigation typically involves, among other things, allegations of underwriting errors or misconduct, employment claims, regulatory activity, or disputes arising from our business ventures. In the opinion of management, our ultimate liability for these matters could be, but we believe is not likely to be, material to our consolidated financial condition and results of operations.
i) Lease commitments
At September 30, 2023, and December 31, 2022, the right-of-use asset was $549 million and $607 million, respectively, recorded within Other assets, and the lease liability was $577 million and $633 million, respectively, recorded within Accounts payable, accrued expenses, and other liabilities on the Consolidated balance sheets. These leases consist principally of real estate operating leases that are amortized on a straight-line basis over the term of the lease, which expire at various dates.
14. Shareholders’ equity
All of Chubb’s Common Shares are authorized under Swiss corporate law. Though the par value of Common Shares is stated in Swiss francs, Chubb continues to use U.S. dollars as its reporting currency for preparing the Consolidated Financial Statements. Under Swiss corporate law, dividends, including distributions from legal reserves or through a reduction in par value (par value reduction), must be stated in Swiss francs though dividend payments are made by Chubb in U.S. dollars. At September 30, 2023, our Common Shares had a par value of CHF 0.50 per share.
At our May 2023 annual general meeting, our shareholders approved an annual dividend for the following year of up to $3.44 per share, expected to be paid in four quarterly installments of $0.86 per share after the general meeting by way of distribution from capital contribution reserves, transferred to free reserves for payment. The Board of Directors (Board) will determine the record and payment dates at which the annual dividend may be paid until the date of 2024 annual general meeting, and is authorized to abstain from distributing a dividend at its discretion.
At our May 2022 and 2021 annual general meetings, our shareholders approved annual dividends for the following year of up to $3.32 per share and $3.20 per share, respectively, which were paid in four quarterly installments of $0.83 per share and $0.80 per share, respectively, at dates determined by the Board after the annual general meetings by way of a distribution from capital contribution reserves, transferred to free reserves for payment.
The following table presents dividend distributions per Common Share in Swiss francs (CHF) and U.S. dollars (USD):

| Three Months Ended |  | Nine Months Ended
| September 30 |  | September 30
| 2023 |  | 2022 |  | 2023 |  | 2022
CHF |  | USD |  | CHF |  | USD |  | CHF |  | USD |  | CHF |  | USD
Total dividend distributions per common share | 0.75 |  | $ | 0.86 |  |  | 0.78 |  | $ | 0.83 |  |  | 2.29 |  | $ | 2.55 |  |  | 2.32 |  | $ | 2.46 |

Increases in Common Shares in treasury are due to open market repurchases of Common Shares and the surrender of Common Shares to satisfy tax withholding obligations in connection with the vesting of restricted stock and the forfeiture of unvested restricted stock. Decreases in Common Shares in treasury are principally due to grants of restricted stock, exercises of stock options, purchases under the Employee Stock Purchase Plan (ESPP), and share cancellations. At the Chubb Limited Extraordinary General Meeting of Shareholders, held on November 3, 2021, shareholders approved the cancellation of 14,465,400 shares repurchased under our share repurchase program during the first six months of 2021. The capital reduction by cancellation of shares was subject to publication requirements and a two-month waiting period in accordance with Swiss law and became effective on January 17, 2022. At our May 2022 annual general meeting, held on May 19, 2022, our shareholders approved the cancellation of 13,179,100 shares purchased under our share repurchase program during the last six months of 2021. The capital reduction by cancellation of shares was subject to publication requirements and a two-month waiting period in accordance with Swiss law and became effective on August 4, 2022. At our May 2023 annual general meeting, held on May 17, 2023, our shareholders approved the cancellation of 14,925,028 shares purchased under our share repurchase programs during 2022. The capital reduction was subject to publication requirements and became effective in accordance with Swiss law on May 22, 2023. During the nine months ended September 30, 2023, 8,634,600 shares were
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repurchased, 14,925,028 shares were canceled, and 2,024,083 net shares were issued under employee share-based compensation plans. At September 30, 2023, 23,467,247 Common Shares remain in treasury.
Chubb Limited securities repurchase authorizations
The Board has authorized share repurchase programs as follows:
•One-time incremental share repurchase program of $5.0 billion of Chubb Common Shares from July 19, 2021 through June 30, 2022;
•$2.5 billion of Chubb Common Shares from May 19, 2022 through June 30, 2023; and
•$5.0 billion of Chubb Common Shares effective July 1, 2023 with no expiration date.
The following table presents repurchases of Chubb's Common Shares conducted in a series of open market transactions under the Board authorizations:

| Three Months Ended |  | Nine Months Ended |
| September 30 |  | September 30
(in millions of U.S. dollars, except share data) | 2023 |  | 2022 |  | 2023 |  | 2022
Number of shares repurchased | 2,949,900 |  |  | 3,676,528 |  |  | 8,634,600 |  |  | 14,022,728 |  |
Cost of shares repurchased | $ | 606 |  |  | $ | 685 |  |  | $ | 1,758 |  |  | $ | 2,815 |  |
Repurchase authorization remaining at end of period | $ | 4,398 |  |  | $ | 1,816 |  |  | $ | 4,398 |  |  | $ | 1,816 |  |

The following table presents changes in accumulated other comprehensive income (loss):

| Three Months Ended |  | Nine Months Ended
| September 30 |  | September 30
| 2023 |  | 2022 |  | 2023 |  | 2022
(in millions of U.S. dollars) |  |  | As Adjusted |  |  |  | As Adjusted
Accumulated other comprehensive income (loss) (AOCI) |  |  |  |  |  |  |
Net unrealized appreciation (depreciation) on investments |  |  |  |  |  |  |
Balance – beginning of period, net of tax | $ | (6,809) |  |  | $ | (5,713) |  |  | $ | (7,279) |  |  | $ | 2,256 |
Change in period, before reclassification from AOCI (before tax) | (2,240) |  |  | (3,324) |  |  | (1,935) |  |  | (12,898) |
Amounts reclassified from AOCI (before tax) | 70 |  |  | 279 |  |  | 357 |  |  | 857 |
Change in period, before tax | (2,170) |  |  | (3,045) |  |  | (1,578) |  |  | (12,041) |
Income tax (expense) benefit | 29 |  |  | 147 |  |  | (93) |  |  | 1,174 |
Total other comprehensive loss | (2,141) |  |  | (2,898) |  |  | (1,671) |  |  | (10,867) |
Noncontrolling interests, net of tax | 3 |  |  | — |  |  | 3 |  |  | — |
Balance – end of period, net of tax | (8,953) |  |  | (8,611) |  |  | (8,953) |  |  | (8,611) |
Current discount rate on liability for future policy benefits |  |  |  |  |  |  |
Balance – beginning of period, net of tax | (247) |  |  | (427) |  |  | (75) |  |  | (1,399) |
Change in period, before tax | 683 |  |  | 479 |  |  | 497 |  |  | 1,546 |
Income tax expense | (35) |  |  | (57) |  |  | (21) |  |  | (152) |
Total other comprehensive income | 648 |  |  | 422 |  |  | 476 |  |  | 1,394 |
Noncontrolling interests, net of tax | (3) |  |  | — |  |  | (3) |  |  | — |
Balance – end of period, net of tax | 404 |  |  | (5) |  |  | 404 |  |  | (5) |

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| Three Months Ended |  | Nine Months Ended
| September 30 |  | September 30
| 2023 |  | 2022 |  | 2023 |  | 2022
(in millions of U.S. dollars) |  |  | As Adjusted |  |  |  | As Adjusted
Accumulated other comprehensive income (loss) (AOCI) - continued |  |  |  |  |  |  |
Instrument-specific credit risk on market risk benefits |  |  |  |  |  |  |
Balance – beginning of period, net of tax | (16) |  |  | (17) |  |  | (24) |  |  | (57) |
Change in period, before and net of tax | (5) |  |  | 8 |  |  | 3 |  |  | 48 |
Total other comprehensive income (loss) | (5) |  |  | 8 |  |  | 3 |  |  | 48 |
Noncontrolling interests, net of tax | — |  |  | — |  |  | — |  |  | — |
Balance – end of period, net of tax | (21) |  |  | (9) |  |  | (21) |  |  | (9) |
Cumulative foreign currency translation adjustment |  |  |  |  |  |  |
Balance – beginning of period, net of tax | (2,920) |  |  | (2,768) |  |  | (2,966) |  |  | (2,114) |
Change in period, before reclassification from AOCI (before tax) | (314) |  |  | (942) |  |  | (269) |  |  | (1,631) |
Amounts reclassified from AOCI (before tax) | (3) |  |  | — |  |  | (10) |  |  | — |
Change in period, before tax | (317) |  |  | (942) |  |  | (279) |  |  | (1,631) |
Income tax benefit | 13 |  |  | 7 |  |  | 21 |  |  | 42 |
Total other comprehensive loss | (304) |  |  | (935) |  |  | (258) |  |  | (1,589) |
Noncontrolling interests, net of tax | (76) |  |  | — |  |  | (76) |  |  | — |
Balance – end of period, net of tax | (3,148) |  |  | (3,703) |  |  | (3,148) |  |  | (3,703) |
Fair value hedging instruments |  |  |  |  |  |  |
Balance – beginning of period, net of tax | (53) |  |  | — |  |  | (66) |  |  | — |
Change in period, before reclassification from AOCI (before tax) | (17) |  |  | (94) |  |  | 23 |  |  | (94) |
Amounts reclassified from AOCI (before tax) | 55 |  |  | 32 |  |  | 32 |  |  | 32 |
Change in period, before tax | 38 |  |  | (62) |  |  | 55 |  |  | (62) |
Income tax (expense) benefit | (7) |  |  | 13 |  |  | (11) |  |  | 13 |
Total other comprehensive income (loss) | 31 |  |  | (49) |  |  | 44 |  |  | (49) |
Noncontrolling interests, net of tax | — |  |  | — |  |  | — |  |  | — |
Balance – end of period, net of tax | (22) |  |  | (49) |  |  | (22) |  |  | (49) |
Postretirement benefit liability adjustment |  |  |  |  |  |  |
Balance – beginning of period, net of tax | 223 |  |  | 259 |  |  | 225 |  |  | 240 |
Change in period, before tax | (1) |  |  | 3 |  |  | (3) |  |  | 27 |
Income tax expense | — |  |  | (1) |  |  | — |  |  | (6) |
Total other comprehensive income (loss) | (1) |  |  | 2 |  |  | (3) |  |  | 21 |
Noncontrolling interests, net of tax | — |  |  | — |  |  | — |  |  | — |
Balance – end of period, net of tax | 222 |  |  | 261 |  |  | 222 |  |  | 261 |
Accumulated other comprehensive income (loss) | $ | (11,518) |  |  | $ | (12,116) |  |  | $ | (11,518) |  |  | $ | (12,116) |

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Chubb Limited and Subsidiaries
The following table presents reclassifications from accumulated other comprehensive income (loss) to the Consolidated statements of operations:

| Three Months Ended |  | Nine Months Ended | Consolidated Statement of Operations Location
| September 30 |  | September 30
(in millions of U.S. dollars) | 2023 |  | 2022 |  | 2023 |  | 2022
Fixed maturities available for sale | $ | (70) |  |  | $ | (279) |  |  | $ | (357) |  |  | $ | (857) |  | Net realized gains (losses)
Income tax benefit | 25 |  |  | 39 |  |  | 59 |  |  | 138 |  | Income tax expense
| $ | (45) |  |  | $ | (240) |  |  | $ | (298) |  |  | $ | (719) |  | Net income
Cumulative foreign currency translation adjustment |  |  |  |  |  |  |  |
Cross-currency swaps | $ | 3 |  |  | $ | — |  |  | $ | 10 |  |  | $ | — |  | Interest expense
Income tax expense | (1) |  |  | — |  |  | (2) |  |  | — |  | Income tax expense
| $ | 2 |  |  | $ | — |  |  | $ | 8 |  |  | $ | — |  | Net income
Net gains (losses) of fair value hedging instruments |  |  |  |  |  |  |  |
Cross-currency swaps | $ | (51) |  |  | $ | (32) |  |  | $ | (20) |  |  | $ | (32) |  | Net realized gains (losses)
Cross-currency swaps | (4) |  |  | — |  |  | (12) |  |  | — |  | Interest expense
Income tax benefit | 12 |  |  | 7 |  |  | 7 |  |  | 7 |  | Income tax expense
| $ | (43) |  |  | $ | (25) |  |  | $ | (25) |  |  | $ | (25) |  | Net income
Total amounts reclassified from AOCI | $ | (86) |  |  | $ | (265) |  |  | $ | (315) |  |  | $ | (744) |  |

15. Share-based compensation
The Chubb Limited 2016 Long-Term Incentive Plan, as amended and restated (the Amended 2016 LTIP), permits grants of both incentive and non-qualified stock options principally at an option price per share equal to the grant date fair value of Chubb's Common Shares. Stock options are generally granted with a 3-year vesting period and a 10-year term. Stock options typically vest in equal annual installments over the respective vesting period, which is also the requisite service period. On February 23, 2023, Chubb granted 1,540,002 stock options with a weighted-average grant date fair value of $51.32 each. The fair value of the options issued is estimated on the grant date using the Black-Scholes option pricing model.
The Amended 2016 LTIP also permits grants of service-based restricted stock and restricted stock units as well as performance-based restricted stock awards. Chubb generally grants service-based restricted stock and restricted stock units with a 4-year vesting period, based on a graded vesting schedule. The performance-based restricted stock awards granted comprise target awards and premium awards that cliff vest at the end of a 3-year performance period based on both tangible book value (shareholders' equity less goodwill and intangible assets, net of tax) per share growth and P&C combined ratio compared to a defined group of peer companies. Premium awards are subject to an additional vesting provision based on total shareholder return compared to our peer group. The restricted stock is principally granted at market close price on the grant date. On February 23, 2023, Chubb granted 785,319 service-based restricted stock awards, 315,545 service-based restricted stock units, and 407,825 performance-based stock awards to employees and officers with a grant date fair value of $208.60 each. Each restricted stock unit represents our obligation to deliver to the holder one Common Share upon vesting.
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Chubb Limited and Subsidiaries
16. Postretirement benefits
The components of net pension and other postretirement benefit costs (benefits) reflected in Net income in the Consolidated statements of operations were as follows:

| Pension Benefit Plans |  | Other Postretirement Benefit Plans
| 2023 |  | 2022 |  | 2023 |  | 2022
Three Months Ended September 30 | U.S. Plans |  | Non-U.S. Plans |  | U.S. Plans |  | Non-U.S. Plans |  |  |  |
(in millions of U.S. dollars) |  |  |  |
Service cost | $ | — |  |  | $ | 2 |  |  | $ | — |  |  | $ | 1 |  |  | $ | — |  |  | $ | — |
Non-service cost (benefit): |  |  |  |  |  |  |  |  |  |  |
Interest cost | 35 |  |  | 9 |  |  | 21 |  |  | 5 |  |  | 1 |  |  | — |
Expected return on plan assets | (56) |  |  | (13) |  |  | (70) |  |  | (11) |  |  | — |  |  | — |
Amortization of net actuarial loss | — |  |  | — |  |  | — |  |  | — |  |  | (1) |  |  | — |
Amortization of prior service cost | — |  |  | — |  |  | — |  |  | — |  |  | (1) |  |  | — |
Settlements | 3 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Total non-service cost (benefit) | (18) |  |  | (4) |  |  | (49) |  |  | (6) |  |  | (1) |  |  | — |
Net periodic benefit cost (benefit) | $ | (18) |  |  | $ | (2) |  |  | $ | (49) |  |  | $ | (5) |  |  | $ | (1) |  |  | $ | — |

| Pension Benefit Plans |  | Other Postretirement Benefit Plans
| 2023 |  | 2022 |  | 2023 |  | 2022
Nine Months Ended September 30 | U.S. Plans |  | Non-U.S. Plans |  | U.S. Plans |  |  | Non-U.S. Plans |  |  |  |
(in millions of U.S. dollars) |  |  |  |  |  |
Service cost: | $ | — |  |  | $ | 6 |  |  | $ | — |  |  |  | $ | 3 |  |  | $ | — |  |  | $ | — |
Non-service cost (benefit): |  |  |  |  |  |  |  |  |  |  |  |
Interest cost | 103 |  |  | 27 |  |  | 64 |  |  |  | 17 |  |  | 2 |  |  | 1 |
Expected return on plan assets | (168) |  |  | (38) |  |  | (212) |  |  |  | (33) |  |  | (2) |  |  | (1) |
Amortization of net actuarial loss | — |  |  | — |  |  | — |  |  |  | — |  |  | (1) |  |  | — |
Amortization of prior service cost | — |  |  | — |  |  | — |  |  |  | — |  |  | (1) |  |  | — |
Settlements | 3 |  |  | — |  |  | — |  |  |  | — |  |  | — |  |  | — |
Total non-service cost (benefit) | (62) |  |  | (11) |  |  | (148) |  |  |  | (16) |  |  | (2) |  |  | — |
Net periodic benefit cost (benefit) | $ | (62) |  |  | $ | (5) |  |  | $ | (148) |  |  |  | $ | (13) |  |  | $ | (2) |  |  | $ | — |

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Chubb Limited and Subsidiaries
The line items in which the service cost and non-service cost (benefit) components of net periodic cost (benefit) are included in the Consolidated statements of operations were as follows:

| Pension Benefit Plans |  | Other Postretirement Benefit Plans
Three Months Ended September 30 | 2023 |  | 2022 |  | 2023 |  | 2022
(in millions of U.S. dollars) |  |  |
Service cost: |  |  |  |  |  |  |
Losses and loss expenses | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |
Administrative expenses | 2 |  |  | 1 |  |  | — |  | — |
Total service cost | 2 |  |  | 1 |  | — |  | —
Non-service cost (benefit): |  |  |  |  |  |  |
Losses and loss expenses | (1) |  |  | (5) |  |  | — |  | —
Administrative expenses | (21) |  |  | (50) |  |  | (1) |  |  | —
Total non-service cost (benefit) | (22) |  |  | (55) |  |  | (1) |  |  | —
Net periodic benefit cost (benefit) | $ | (20) |  |  | $ | (54) |  |  | $ | (1) |  |  | $ | — |

| Pension Benefit Plans |  | Other Postretirement Benefit Plans
Nine Months Ended September 30 | 2023 |  | 2022 |  | 2023 |  | 2022
(in millions of U.S. dollars) |  |  |
Service cost: |  |  |  |  |  |  |
Losses and loss expenses | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |
Administrative expenses | 6 |  | 3 |  |  | — |  | —
Total service cost | 6 |  | 3 |  |  | — |  | —
Non-service cost (benefit): |  |  |  |  |  |  |
Losses and loss expenses | (6) |  |  | (15) |  |  | — |  | —
Administrative expenses | (67) |  |  | (149) |  |  | (2) |  |  | —
Total non-service cost (benefit) | (73) |  |  | (164) |  |  | (2) |  |  | —
Net periodic benefit cost (benefit) | $ | (67) |  |  | $ | (161) |  |  | $ | (2) |  |  | $ | — |

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Chubb Limited and Subsidiaries
17. Other income and expense

| Three Months Ended |  | Nine Months Ended
| September 30 |  | September 30
(in millions of U.S. dollars) | 2023 |  | 2022 |  | 2023 |  | 2022
Equity in net income (loss) of partially-owned entities | $ | 150 |  |  | $ | (111) |  |  | $ | 610 |  |  | $ | 180 |
Gains (losses) from fair value changes in separate account assets (1) | (19) |  |  | (67) |  |  | (56) |  |  | (116) |
Asset management and performance fee revenue | 55 |  |  | — |  |  | 55 |  |  | — |
Asset management and performance fee expense | (33) |  |  | — |  |  | (33) |  |  | — |
Federal excise and capital taxes | (6) |  |  | (6) |  |  | (17) |  |  | (15) |
Other | 7 |  |  | (18) |  |  | (9) |  |  | (40) |
Total | $ | 154 |  |  | $ | (202) |  |  | $ | 550 |  |  | $ | 9 |

(1) Related to gains (losses) from fair value changes in separate account assets that do not qualify for separate account reporting under GAAP.
Equity in net income of partially-owned entities includes our share of net income or loss, both underlying operating income and mark-to-market movement, related to partially-owned investment companies (private equity) where we own more than three percent, and partially-owned insurance companies. This line item includes mark-to-market gains (losses) on private equities of $51 million and $290 million for the three and nine months ended September 30, 2023, respectively, and $(190) million and $(69) million, respectively, for the prior year periods.
Other income and expense includes net income attributable to our investment in Huatai under the equity method of accounting comprising income of $36 million through June 30, 2023, and $28 million and $83 million for the three and nine months ended September 30, 2022, respectively. Effective July 1, 2023, we discontinued the equity method of accounting and include the results of operations of Huatai in our consolidated results.
Also included in Other income and expense are gains (losses) from fair value changes in separate account assets that do not qualify for separate account reporting under GAAP. The offsetting movement in the separate account liabilities is included in Policy benefits in the Consolidated statements of operations.
Asset management and performance fee revenue and expense primarily relate to the management of third-party assets by Huatai's asset management business, which is unrelated to Huatai Group's core insurance operations. These revenues and expenses are recognized in the period in which the services are performed.
Certain federal excise and capital taxes incurred as a result of capital management initiatives are included in Other income and expense as these are considered capital transactions and are excluded from underwriting results. Bad debt expense for uncollectible premiums is also included in Other income and expense.
18. Segment information
Chubb operates through six business segments: North America Commercial P&C Insurance, North America Personal P&C Insurance, North America Agricultural Insuran ce, Overseas General Insurance, Global Reinsurance, and Life Insurance. These segments distribute their products through various forms of brokers, agencies, and direct marketing programs. All business segments have established relationships with reinsurance intermediar ies. Commencing in the third quarter of 2023, the results of Huatai Group's life and asset management business are included in the Life Insurance segment, and the results of Huatai Group's P&C business are included in the Overseas General Insurance segment. Results for Huatai Group’s non-insurance operations, comprising real estate and holding company activity, are included in Corporate. Commencing in the third quarter of 2022, the results of Cigna's business in Asia are included in our Life Insurance segment and, to a lesser extent, Overseas General Insurance segment according to the nature of the business written.
Management uses underwriting income (loss) as the basis for segment performance for its P&C operations. P&C underwriting income (loss) excludes the Life Insurance segment and is calculated by subtracting Losses and loss expenses, Policy benefits, Policy acquisition costs, and Administrative expenses from Net premiums earned. Segment income (loss) includes Underwriting income (loss), Net investment income (loss), and Other operating income and expense items such as each segment's share of the operating income (loss) related to partially-owned entities and miscellaneous income and expense items for which the segments are held accountable. Our main measure of segment performance is Segment income (loss), which also includes Amortization of purchased intangibles acquired by the segment. We determined that this definition of Segment income (loss) is appropriate and aligns with how the business is managed. We continue to evaluate our segments as our business continues to evolve and may further refine our segments and Segment income (loss) measures.
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Chubb Limited and Subsidiaries
Revenue and expenses managed at the corporate level, including Net realized gains (losses), Market risk benefits gains (losses), Interest expense, Cigna integration expenses, Income tax, and Net income (loss) attributable to noncontrolling interests are reported within Corporate. Cigna integration expenses are one-time costs that are directly attributable to third-party consulting fees, employee-related retention costs, and other professional and legal fees primarily related to the acquisition of Cigna's business in Asia. These items are not allocated to the segment level as they are one-time in nature and are not related to the ongoing business activities of the segment. The Chief Executive Officer does not manage segment results or allocate resources to segments when considering these costs, and therefore are excluded from our definition of Segment income (loss).
Certain items are presented in a different manner for segment reporting purposes than in the Consolidated Financial Statements. These items are reconciled to the consolidated presentation in the Segment measure reclass column below and include:
•Losses and loss expenses include realized gains and losses on crop derivatives. These derivatives were purchased to provide economic benefit, in a manner similar to reinsurance protection, in the event that a significant decline in commodity pricing impacts underwriting results. We view gains and losses on these derivatives as part of the results of our underwriting operations, and therefore realized gains (losses) from these derivatives are reclassified to Losses and loss expenses.
•Policy benefits include fair value changes on separate accounts that do not qualify for separate accounting under GAAP. These gains and losses have been reclassified from Other (income) expense. We view gains and losses from fair value changes in both separate account assets and liabilities as part of the results of our underwriting operations, and therefore these gains and losses are reclassified to Policy benefits.
•Net investment income includes investment income reclassified from Other (income) expense related to partially-owned investment companies (private equity partnerships) where our ownership interest is in excess of three percent. We view investment income from these equity-method private equity partnerships as Net investment income for segment reporting purposes.
The following tables present the Statement of Operations by segment:

For the Three Months Ended September 30, 2023 (in millions of U.S. dollars) | North America Commercial P&C Insurance |  | North America Personal P&C Insurance |  | North America Agricultural Insurance |  | Overseas General Insurance |  | Global Reinsurance |  | Life Insurance |  | Corporate |  | Segment Measure Reclass |  | Chubb Consolidated
Net premiums written | $ | 5,132 |  |  | $ | 1,527 |  |  | $ | 1,521 |  |  | $ | 3,211 |  |  | $ | 261 |  |  | $ | 1,452 |  |  | $ | — |  |  | $ | — |  |  | $ | 13,104 |
Net premiums earned | 4,735 |  |  | 1,407 |  |  | 1,540 |  |  | 3,311 |  |  | 239 |  |  | 1,442 |  |  | — |  |  | — |  |  | 12,674 |
Losses and loss expenses | 3,025 |  |  | 900 |  |  | 1,356 |  |  | 1,635 |  |  | 116 |  |  | 20 |  |  | 61 |  |  | (7) |  |  | 7,106 |
Policy benefits | — |  |  | — |  |  | — |  |  | 91 |  |  | — |  |  | 866 |  |  | — |  |  | (19) |  |  | 938 |
Policy acquisition costs | 640 |  |  | 287 |  |  | 76 |  |  | 827 |  |  | 69 |  |  | 279 |  |  | — |  |  | — |  |  | 2,178 |
Administrative expenses | 323 |  |  | 84 |  |  | 3 |  |  | 327 |  |  | 9 |  |  | 216 |  |  | 98 |  |  | — |  |  | 1,060 |
Underwriting income (loss) | 747 |  |  | 136 |  |  | 105 |  |  | 431 |  |  | 45 |  |  | 61 |  |  | (159) |  |  | 26 |  |  | 1,392 |
Net investment income | 780 |  |  | 94 |  |  | 12 |  |  | 248 |  |  | 47 |  |  | 211 |  |  | 14 |  |  | (92) |  |  | 1,314 |
Other (income) expense | 6 |  |  | 2 |  |  | — |  |  | (10) |  |  | — |  |  | (28) |  |  | (51) |  |  | (73) |  |  | (154) |
Amortization expense of purchased intangibles | — |  |  | 3 |  |  | 6 |  |  | 19 |  |  | — |  |  | 12 |  |  | 44 |  |  | — |  |  | 84 |
Segment income (loss) | $ | 1,521 |  |  | $ | 225 |  |  | $ | 111 |  |  | $ | 670 |  |  | $ | 92 |  |  | $ | 288 |  |  | $ | (138) |  |  | $ | 7 |  |  | $ | 2,776 |
Net realized gains (losses) |  |  |  |  |  |  |  |  |  |  |  |  | (96) |  |  | (7) |  |  | (103) |
Market risk benefits gains (losses) |  |  |  |  |  |  |  |  |  |  |  |  | (32) |  |  | — |  |  | (32) |
Interest expense |  |  |  |  |  |  |  |  |  |  |  |  | 174 |  |  | — |  |  | 174 |
Cigna integration expenses |  |  |  |  |  |  |  |  |  |  |  |  | 14 |  |  | — |  |  | 14 |
Income tax expense |  |  |  |  |  |  |  |  |  |  |  |  | 413 |  |  | — |  |  | 413 |
Net income (loss) |  |  |  |  |  |  |  |  |  |  |  |  | (867) |  |  | — |  |  | 2,040 |
Net loss attributable to noncontrolling interests |  |  |  |  |  |  |  |  |  |  |  |  | (3) |  |  | — |  |  | (3) |
Net income (loss) attributable to Chubb |  |  |  |  |  |  |  |  |  |  |  |  | $ | (864) |  |  | $ | — |  |  | $ | 2,043 |

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Chubb Limited and Subsidiaries

For the Three Months Ended September 30, 2022 (As Adjusted) (in millions of U.S. dollars) | North America Commercial P&C Insurance |  | North America Personal P&C Insurance |  | North America Agricultural Insurance |  | Overseas General Insurance |  | Global Reinsurance |  | Life Insurance |  | Corporate |  | Segment Measure Reclass |  | Chubb Consolidated
Net premiums written | $ | 4,722 |  |  | $ | 1,392 |  |  | $ | 1,723 |  |  | $ | 2,645 |  |  | $ | 265 |  |  | $ | 1,265 |  |  | $ | — |  |  | $ | — |  |  | $ | 12,012 |
Net premiums earned | 4,283 |  |  | 1,334 |  |  | 1,673 |  |  | 2,741 |  |  | 255 |  |  | 1,244 |  |  | — |  |  | — |  |  | 11,530 |
Losses and loss expenses | 3,036 |  |  | 857 |  |  | 1,444 |  |  | 1,333 |  |  | 311 |  |  | 27 |  |  | 74 |  |  | (19) |  |  | 7,063 |
Policy benefits | — |  |  | — |  |  | — |  |  | 108 |  |  | — |  |  | 666 |  |  | — |  |  | (67) |  |  | 707 |
Policy acquisition costs | 583 |  |  | 274 |  |  | 68 |  |  | 720 |  |  | 59 |  |  | 266 |  |  | — |  |  | — |  |  | 1,970 |
Administrative expenses | 272 |  |  | 71 |  |  | 3 |  |  | 264 |  |  | 8 |  |  | 174 |  |  | 91 |  |  | — |  |  | 883 |
Underwriting income (loss) | 392 |  |  | 132 |  |  | 158 |  |  | 316 |  |  | (123) |  |  | 111 |  |  | (165) |  |  | 86 |  |  | 907 |
Net investment income | 589 |  |  | 76 |  |  | 9 |  |  | 151 |  |  | 71 |  |  | 147 |  |  | 5 |  |  | (69) |  |  | 979 |
Other (income) expense | 6 |  |  | 1 |  |  | 1 |  |  | (2) |  |  | — |  |  | 4 |  |  | 194 |  |  | (2) |  |  | 202 |
Amortization expense of purchased intangibles | — |  |  | 2 |  |  | 7 |  |  | 12 |  |  | — |  |  | 2 |  |  | 46 |  |  | — |  |  | 69 |
Segment income (loss) | $ | 975 |  |  | $ | 205 |  |  | $ | 159 |  |  | $ | 457 |  |  | $ | (52) |  |  | $ | 252 |  |  | $ | (400) |  |  | $ | 19 |  |  | $ | 1,615 |
Net realized gains (losses) |  |  |  |  |  |  |  |  |  |  |  |  | (437) |  |  | (19) |  |  | (456) |
Market risk benefits gains (losses) |  |  |  |  |  |  |  |  |  |  |  |  | 69 |  |  | — |  |  | 69 |
Interest expense |  |  |  |  |  |  |  |  |  |  |  |  | 150 |  |  | — |  |  | 150 |
Cigna integration expenses |  |  |  |  |  |  |  |  |  |  |  |  | 23 |  |  | — |  |  | 23 |
Income tax expense |  |  |  |  |  |  |  |  |  |  |  |  | 263 |  |  | — |  |  | 263 |
Net income (loss) |  |  |  |  |  |  |  |  |  |  |  |  | $ | (1,204) |  |  | $ | — |  |  | $ | 792 |

For the Nine Months Ended September 30, 2023 (in millions of U.S. dollars) | North America Commercial P&C Insurance |  | North America Personal P&C Insurance |  | North America Agricultural Insurance |  | Overseas General Insurance |  | Global Reinsurance |  | Life Insurance |  | Corporate |  | Segment Measure Reclass |  | Chubb Consolidated
Net premiums written | $ | 14,575 |  |  | $ | 4,404 |  |  | $ | 2,581 |  |  | $ | 9,359 |  |  | $ | 831 |  |  | $ | 4,015 |  |  | $ | — |  |  | $ | — |  |  | $ | 35,765 |
Net premiums earned | 13,710 |  |  | 4,084 |  |  | 2,334 |  |  | 9,005 |  |  | 720 |  |  | 3,962 |  |  | — |  |  | — |  |  | 33,815 |
Losses and loss expenses | 8,625 |  |  | 2,634 |  |  | 2,003 |  |  | 4,139 |  |  | 319 |  |  | 87 |  |  | 133 |  |  | (3) |  |  | 17,937 |
Policy benefits | — |  |  | — |  |  | — |  |  | 338 |  |  | — |  |  | 2,283 |  |  | — |  |  | (56) |  |  | 2,565 |
Policy acquisition costs | 1,867 |  |  | 836 |  |  | 128 |  |  | 2,286 |  |  | 196 |  |  | 829 |  |  | — |  |  | — |  |  | 6,142 |
Administrative expenses | 934 |  |  | 247 |  |  | 9 |  |  | 899 |  |  | 27 |  |  | 553 |  |  | 290 |  |  | — |  |  | 2,959 |
Underwriting income (loss) | 2,284 |  |  | 367 |  |  | 194 |  |  | 1,343 |  |  | 178 |  |  | 210 |  |  | (423) |  |  | 59 |  |  | 4,212 |
Net investment income | 2,204 |  |  | 262 |  |  | 43 |  |  | 636 |  |  | 144 |  |  | 525 |  |  | 28 |  |  | (276) |  |  | 3,566 |
Other (income) expense | 18 |  |  | 2 |  |  | — |  |  | (29) |  |  | (1) |  |  | (69) |  |  | (251) |  |  | (220) |  |  | (550) |
Amortization expense of purchased intangibles | — |  |  | 8 |  |  | 19 |  |  | 52 |  |  | — |  |  | 18 |  |  | 129 |  |  | — |  |  | 226 |
Segment income (loss) | $ | 4,470 |  |  | $ | 619 |  |  | $ | 218 |  |  | $ | 1,956 |  |  | $ | 323 |  |  | $ | 786 |  |  | $ | (273) |  |  | $ | 3 |  |  | $ | 8,102 |
Net realized gains (losses) |  |  |  |  |  |  |  |  |  |  |  |  | (481) |  |  | (3) |  |  | (484) |
Market risk benefits gains (losses) |  |  |  |  |  |  |  |  |  |  |  |  | (154) |  |  | — |  |  | (154) |
Interest expense |  |  |  |  |  |  |  |  |  |  |  |  | 499 |  |  | — |  |  | 499 |
Cigna integration expenses |  |  |  |  |  |  |  |  |  |  |  |  | 51 |  |  | — |  |  | 51 |
Income tax expense |  |  |  |  |  |  |  |  |  |  |  |  | 1,189 |  |  | — |  |  | 1,189 |
Net income (loss) |  |  |  |  |  |  |  |  |  |  |  |  | $ | (2,647) |  |  | $ | — |  |  | $ | 5,725 |
Net loss attributable to noncontrolling interests |  |  |  |  |  |  |  |  |  |  |  |  | (3) |  |  | — |  |  | (3) |
Net income (loss) attributable to Chubb |  |  |  |  |  |  |  |  |  |  |  |  | $ | (2,644) |  |  | $ | — |  |  | $ | 5,728 |

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)
Chubb Limited and Subsidiaries

For the Nine Months Ended September 30, 2022 (As Adjusted) (in millions of U.S. dollars) | North America Commercial P&C Insurance |  | North America Personal P&C Insurance |  | North America Agricultural Insurance |  | Overseas General Insurance |  | Global Reinsurance |  | Life Insurance |  | Corporate |  | Segment Measure Reclass |  | Chubb Consolidated
Net premiums written | $ | 13,426 |  |  | $ | 3,998 |  |  | $ | 2,523 |  |  | $ | 8,364 |  |  | $ | 780 |  |  | $ | 2,403 |  |  | $ | — |  |  | $ | — |  |  | $ | 31,494 |
Net premiums earned | 12,645 |  |  | 3,852 |  |  | 2,217 |  |  | 8,065 |  |  | 712 |  |  | 2,325 |  |  | — |  |  | — |  |  | 29,816 |
Losses and loss expenses | 7,979 |  |  | 2,343 |  |  | 1,830 |  |  | 3,772 |  |  | 565 |  |  | 78 |  |  | 275 |  |  | (9) |  |  | 16,833 |
Policy benefits | — |  |  | — |  |  | — |  |  | 282 |  |  | — |  |  | 1,275 |  |  | — |  |  | (116) |  |  | 1,441 |
Policy acquisition costs | 1,701 |  |  | 792 |  |  | 111 |  |  | 2,096 |  |  | 178 |  |  | 537 |  |  | — |  |  | — |  |  | 5,415 |
Administrative expenses | 814 |  |  | 213 |  |  | 4 |  |  | 811 |  |  | 27 |  |  | 346 |  |  | 264 |  |  | — |  |  | 2,479 |
Underwriting income (loss) | 2,151 |  |  | 504 |  |  | 272 |  |  | 1,104 |  |  | (58) |  |  | 89 |  |  | (539) |  |  | 125 |  |  | 3,648 |
Net investment income (loss) | 1,600 |  |  | 199 |  |  | 23 |  |  | 460 |  |  | 232 |  |  | 359 |  |  | (4) |  |  | (180) |  |  | 2,689 |
Other (income) expense | 12 |  |  | 3 |  |  | 1 |  |  | 3 |  |  | 1 |  |  | (38) |  |  | 73 |  |  | (64) |  |  | (9) |
Amortization expense of purchased intangibles | — |  |  | 7 |  |  | 20 |  |  | 40 |  |  | — |  |  | 7 |  |  | 137 |  |  | — |  |  | 211 |
Segment income (loss) | $ | 3,739 |  |  | $ | 693 |  |  | $ | 274 |  |  | $ | 1,521 |  |  | $ | 173 |  |  | $ | 479 |  |  | $ | (753) |  |  | $ | 9 |  |  | $ | 6,135 |
Net realized gains (losses) |  |  |  |  |  |  |  |  |  |  |  |  | (927) |  |  | (9) |  |  | (936) |
Market risk benefits gains (losses) |  |  |  |  |  |  |  |  |  |  |  |  | 85 |  |  | — |  |  | 85 |
Interest expense |  |  |  |  |  |  |  |  |  |  |  |  | 416 |  |  | — |  |  | 416 |
Cigna integration expenses |  |  |  |  |  |  |  |  |  |  |  |  | 26 |  |  | — |  |  | 26 |
Income tax expense |  |  |  |  |  |  |  |  |  |  |  |  | 907 |  |  | — |  |  | 907 |
Net income (loss) |  |  |  |  |  |  |  |  |  |  |  |  | $ | (2,944) |  |  | $ | — |  |  | $ | 3,935 |

Underwriting assets are reviewed in total by management for purposes of decision-making. Other than Unpaid losses and loss expenses, Future policy benefits, Reinsurance recoverables, DAC, VOBA, Goodwill and Other intangible assets, Chubb does not allocate assets to its segments.
19. Earnings per share

| Three Months Ended |  | Nine Months Ended
| September 30 |  | September 30
| 2023 |  | 2022 |  | 2023 |  | 2022
(in millions of U.S. dollars, except share and per share data) |  |  | As Adjusted |  |  |  | As Adjusted
Numerator: |  |  |  |  |  |  |
Net income | $ | 2,040 |  |  | $ | 792 |  |  | $ | 5,725 |  |  | $ | 3,935 |
Net loss attributable to noncontrolling interests | (3) |  |  | — |  |  | (3) |  |  | — |
Net income attributable to Chubb | $ | 2,043 |  |  | $ | 792 |  |  | $ | 5,728 |  |  | $ | 3,935 |
Denominator: |  |  |  |  |  |  |
Denominator for basic earnings per share attributable to Chubb: |  |  |  |  |  |  |
Weighted-average shares outstanding | 409,505,454 |  |  | 416,542,101 |  |  | 412,076,470 |  |  | 421,290,032 |
Denominator for diluted earnings per share attributable to Chubb: |  |  |  |  |  |  |
Share-based compensation plans | 3,100,505 |  |  | 3,076,855 |  |  | 3,288,940 |  |  | 3,733,449 |
Weighted-average shares outstanding and assumed conversions | 412,605,959 |  |  | 419,618,956 |  |  | 415,365,410 |  |  | 425,023,481 |
Basic earnings per share attributable to Chubb | $ | 4.99 |  |  | $ | 1.90 |  |  | $ | 13.90 |  |  | $ | 9.34 |
Diluted earnings per share attributable to Chubb | $ | 4.95 |  |  | $ | 1.89 |  |  | $ | 13.79 |  |  | $ | 9.26 |
Potential anti-dilutive share conversions | 2,562,206 |  |  | 1,693,502 |  |  | 2,330,821 |  |  | 1,377,784 |

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)
Chubb Limited and Subsidiaries
Excluded from weighted-average shares outstanding and assumed conversions is the impact of securities that would have been anti-dilutive during the respective periods. These securities consisted of stock options in which the underlying exercise prices were greater than the average market prices of our Common Shares. Refer to Note 12 to the Consolidated Financial Statements of our 2022 Form 10-K for additional information on stock options.
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ITEM 2. Management's Discussion and Analysis of Financial Condition and Results of Operations

The following is a discussion of our results of operations, financial condition, and liquidity and capital resources as of and for the three and nine months ended September 30, 2023.
All comparisons in this discussion are to the corresponding prior year period unless otherwise indicated. All dollar amounts are rounded. However, percent changes and ratios are calculated using whole dollars. Accordingly, calculations using rounded dollars may differ.
Our results of operations and cash flows for any interim period are not necessarily indicative of our results for the full year. This discussion should be read in conjunction with our consolidated financial statements and related notes and our Management’s Discussion and Analysis of Financial Condition and Results of Operations included in our Annual Report on Form 10-K for the year ended December 31, 2022 (2022 Form 10-K).
Other Information
We routinely post important information for investors on our website (investors.chubb.com). We use this website as a means of disclosing material, non-public information and for complying with our disclosure obligations under Securities and Exchange Commission (SEC) Regulation FD (Fair Disclosure). Accordingly, investors should monitor the Investor Information portion of our website, in addition to following our press releases, SEC filings, public conference calls, and webcasts. The information contained on, or that may be accessed through, our website is not incorporated by reference into, and is not a part of, this report.

MD&A Index | Page
Forward-Looking Statements | 64
Overview | 65
Consolidated Operating Results | 66
Segment Operating Results | 71
Net Realized and Unrealized Gains (Losses) | 82
Effective Income Tax Rate | 84
Non-GAAP Reconciliation | 84
Amortization of Purchased Intangibles and Other Amortization | 90
Net Investment Income | 91
Investments | 91
Critical Accounting Estimates | 96
Unpaid Losses and Loss Expenses | 96
Future policy benefits | 96
Asbestos and Environmental (A&E) | 96
Fair Value Measurements | 96
Catastrophe Management | 97
Global Property Catastrophe Reinsurance Program | 98
Capital Resources | 99
Liquidity | 100
Information Provided In Connection With Outstanding Debt of Subsidiaries | 101

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Forward-Looking Statements

The Private Securities Litigation Reform Act of 1995 provides a “safe harbor” for forward-looking statements. Any written or oral statements made by us or on our behalf may include forward-looking statements that reflect our current views with respect to future events and financial performance. The words “believe,” “anticipate,” “estimate,” “project,” “should,” “plan,” “expect,” “intend,” “hope,” “feel,” “foresee,” “will likely result,” “will continue,” and variations thereof and similar expressions, identify forward-looking statements. These forward-looking statements are subject to certain risks, uncertainties, and other factors that could, should potential events occur, cause actual results to differ materially from such statements. These risks, uncertainties, and other factors, which are described in more detail elsewhere herein and in other documents we file with the U.S. Securities and Exchange Commission (SEC), include but are not limited to:
•actual amount of new and renewal business, premium rates, underwriting margins, market acceptance of our products, and risks associated with the introduction of new products and services and entering new markets; the competitive environment in which we operate, including trends in pricing or in policy terms and conditions, which may differ from our projections, and changes in market conditions that could render our business strategies ineffective or obsolete;
•losses arising out of natural or man-made catastrophes; actual loss experience from insured or reinsured events and the timing of claim payments; the uncertainties of the loss-reserving and claims-settlement processes, including the difficulties associated with assessing environmental damage and asbestos-related latent injuries, the impact of aggregate-policy-coverage limits, the impact of bankruptcy protection sought by various asbestos producers and other related businesses, and the timing of loss payments;
•changes in the distribution or placement of risks due to increased consolidation of insurance and reinsurance brokers; material differences between actual and expected assessments for guaranty funds and mandatory pooling arrangements; the ability to collect reinsurance recoverable, credit developments of reinsurers, and any delays with respect thereto and changes in the cost, quality, or availability of reinsurance;
•uncertainties relating to governmental, legislative and regulatory policies, developments, actions, investigations, and treaties; judicial decisions and rulings, new theories of liability, legal tactics, and settlement terms; the effects of data privacy or cyber laws or regulation; global political conditions and possible business disruption or economic contraction that may result from such events;
•severity of pandemics and related risks, and their effects on our business operations and claims activity, and any adverse impact to our insureds, brokers, agents, and employees; actual claims may exceed our best estimate of ultimate insurance losses incurred which could change including as a result of, among other things, the impact of legislative or regulatory actions taken in response to a pandemic;
•developments in global financial markets, including changes in interest rates, stock markets, and other financial markets; increased government involvement or intervention in the financial services industry; the cost and availability of financing, and foreign currency exchange rate fluctuations; changing rates of inflation; and other general economic and business conditions, including the depth and duration of potential recession;
•the availability of borrowings and letters of credit under our credit facilities; the adequacy of collateral supporting funded high deductible programs; the amount of dividends received from subsidiaries;
•changes to our assessment as to whether it is more likely than not that we will be required to sell, or have the intent to sell, available for sale fixed maturity investments before their anticipated recovery;
•actions that rating agencies may take from time to time, such as financial strength or credit ratings downgrades or placing these ratings on credit watch negative or the equivalent;
•the effects of public company bankruptcies and accounting restatements, as well as disclosures by and investigations of public companies relating to possible accounting irregularities, and other corporate governance issues;
•acquisitions made performing differently than expected, our failure to realize anticipated expense-related efficiencies or growth from acquisitions, the impact of acquisitions on our pre-existing organization, and risks and uncertainties relating to our planned purchases of additional interests in Huatai Insurance Group Co., Ltd. (Huatai Group), including our ability to receive Chinese insurance regulatory approval and complete the purchases;
•risks associated with being a Swiss corporation, including reduced flexibility with respect to certain aspects of capital management and the potential for additional regulatory burdens; share repurchase plans and share cancellations;
•loss of the services of any of our executive officers without suitable replacements being recruited in a reasonable time frame;
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•the ability of our technology resources, including information systems and security, to perform as anticipated such as with respect to preventing material information technology failures or third-party infiltrations or hacking resulting in consequences adverse to Chubb or its customers or partners; the ability of our company to increase use of data analytics and technology as part of our business strategy and adapt to new technologies; and
•management’s response to these factors and actual events (including, but not limited to, those described above).
You are cautioned not to place undue reliance on these forward-looking statements, which speak only as of their dates. We undertake no obligation to publicly update or review any forward-looking statements, whether as a result of new information, future events or otherwise.

Overview

Chubb Limited is the Swiss-incorporated holding company of the Chubb Group of Companies. Chubb Limited, which is headquartered in Zurich, Switzerland, and its direct and indirect subsidiaries (collectively, the Chubb Group of Companies, Chubb, we, us, or our) are a global insurance and reinsurance organization, serving the needs of a diverse group of clients worldwide. At September 30, 2023, we had total assets of $223 billion and total Chubb shareholders’ equity, which excludes noncontrolling interests, of $52.4 billion. Chubb was incorporated in 1985 at which time it opened its first business office in Bermuda and continues to maintain operations in Bermuda. We operate through six business segments: North America Commercial P&C Insurance, North America Personal P&C Insurance, North America Agricultural Insurance, Overseas General Insurance, Global Reinsurance, and Life Insurance. For more information on our segments refer to “Segment Information” under Item 1 in our 2022 Form 10-K.
On July 1, 2023, we completed the acquisition of a controlling majority interest of Huatai Group. For the three and nine months ended September 30, 2023, the results of operations of Huatai Group is reported at 100 percent in our consolidated results starting from the acquisition date, with amounts attributable to shareholders other than Chubb are reflected under Noncontrolling interests. Huatai Group's life and asset management businesses are included in the Life Insurance segment, and Huatai Group's P&C business is included in the Overseas General Insurance segment. Results for Huatai Group's non-insurance operations, comprising real estate and holding company activity, are included in Corporate.
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Consolidated Operating Results – Three and Nine Months Ended September 30, 2023 and 2022

| Three Months Ended |  |  |  | Nine Months Ended |  |
| September 30 |  | % Change |  | September 30 |  | % Change
(in millions of U.S. dollars, except for percentages) | 2023 |  |  | 2022 |  |  | Q-23 vs. Q-22 |  | 2023 |  |  | 2022 |  |  | YTD-23 vs. YTD-22
Net premiums written | $ | 13,104 |  |  | $ | 12,012 |  |  | 9.1 | % |  | $ | 35,765 |  |  | $ | 31,494 |  |  | 13.6 | %
Net premiums written - constant dollars (1) |  |  |  |  | 8.4 | % |  |  |  |  |  | 14.0 | %
Net premiums earned | 12,674 |  |  | 11,530 |  |  | 9.9 | % |  | 33,815 |  |  | 29,816 |  |  | 13.4 | %
Net investment income | 1,314 |  |  | 979 |  |  | 34.2 | % |  | 3,566 |  |  | 2,689 |  |  | 32.6 | %
Net realized gains (losses) | (103) |  |  | (456) |  |  | (77.3) | % |  | (484) |  |  | (936) |  |  | (48.1) | %
Market risk benefits gains (losses) | (32) |  |  | 69 |  |  | NM |  | (154) |  |  | 85 |  |  | NM
Total revenues | 13,853 |  |  | 12,122 |  |  | 14.3 | % |  | 36,743 |  |  | 31,654 |  |  | 16.1 | %
Losses and loss expenses | 7,106 |  |  | 7,063 |  |  | 0.6 | % |  | 17,937 |  |  | 16,833 |  |  | 6.6 | %
Policy benefits | 938 |  |  | 707 |  |  | 32.7 | % |  | 2,565 |  |  | 1,441 |  |  | 78.0 | %
Policy acquisition costs | 2,178 |  |  | 1,970 |  |  | 10.6 | % |  | 6,142 |  |  | 5,415 |  |  | 13.4 | %
Administrative expenses | 1,060 |  |  | 883 |  |  | 20.0 | % |  | 2,959 |  |  | 2,479 |  |  | 19.3 | %
Interest expense | 174 |  |  | 150 |  |  | 15.6 | % |  | 499 |  |  | 416 |  |  | 19.8 | %
Other (income) expense | (154) |  |  | 202 |  |  | NM |  | (550) |  |  | (9) |  |  | NM
Amortization of purchased intangibles | 84 |  |  | 69 |  |  | 22.0 | % |  | 226 |  |  | 211 |  |  | 7.1 | %
Cigna integration expenses | 14 |  |  | 23 |  |  | (38.8) | % |  | 51 |  |  | 26 |  |  | 99.4 | %
Total expenses | 11,400 |  |  | 11,067 |  |  | 3.0 | % |  | 29,829 |  |  | 26,812 |  |  | 11.2 | %
Income before income tax | 2,453 |  |  | 1,055 |  |  | 132.2 | % |  | 6,914 |  |  | 4,842 |  |  | 42.8 | %
Income tax expense | 413 |  |  | 263 |  |  | 57.2 | % |  | 1,189 |  |  | 907 |  |  | 31.1 | %
Net income | $ | 2,040 |  |  | $ | 792 |  |  | 157.0 | % |  | $ | 5,725 |  |  | $ | 3,935 |  |  | 45.4 | %
Net loss attributable to noncontrolling interests | (3) |  |  | — |  |  | NM |  | (3) |  |  | — |  |  | NM
Net income attributable to Chubb | $ | 2,043 |  |  | $ | 792 |  |  | 157.8 | % |  | $ | 5,728 |  |  | $ | 3,935 |  |  | 45.5 | %

NM - not meaningful
(1) On a constant-dollar basis. Amounts are calculated by translating prior period results using the same local currency exchange rates as the comparable current period.
Financial Highlights for the Three Months Ended September 30, 2023
•On July 1, 2023, Chubb increased its investment in Huatai Group from approximately 64.2 percent to approximately 69.6 percent, discontinued the equity method of accounting and applied consolidation accounting. Business activity for, and the financial position of, Huatai Group is reported at 100 percent on the Consolidated Financial Statements. The relevant amounts attributable to investors other than Chubb are reflected under Noncontrolling interests, Net income (loss) attributable to noncontrolling interests, and Comprehensive income (loss) attributable to noncontrolling interests on the Consolidated Financial Statements. Refer to Note 2 to the Consolidated Financial Statements for additional information.
•Net income attributable to Chubb was $2.0 billion compared with $792 million in the prior year period. Net income in the current quarter was driven by strong underwriting results, including growth in net premiums earned, and record net investment income. There were after-tax mark-to-market gains on public and private equities of $46 million in the current quarter compared to losses of $287 million in the prior year. In addition, there were after-tax realized losses on fixed maturities of $37 million, compared to $393 million in the prior year.
•Consolidated net premiums written were $13.1 billion, up 9.1 percent, or 8.4 percent in constant dollars. P&C net premiums written increased 8.4 percent, or 7.6 percent in constant dollars, with commercial lines and consumer lines up 5.4 percent and 14.9 percent, respectively. Life Insurance segment net premiums written increased 14.9 percent. The consolidation of Huatai Group added 2.9 percentage points, 1.8 percentage points, and 11.9 percentage points to consolidated, P&C, and Life Insurance net premiums written growth, respectively.
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•Consolidated net premiums earned were $12.7 billion, up 9.9 percent, or 9.0 percent in constant dollars. The consolidation of Huatai Group added 3.3 percentage points to the growth in net premiums earned.
•Total pre-tax and after-tax catastrophe losses were $670 million (6.0 percentage points of the P&C combined ratio) and $544 million, respectively, compared with $1.2 billion (11.3 percentage points of the P&C combined ratio) and $949 million, respectively, in the prior year period.
•Total pre-tax and after-tax favorable prior period development were $200 million (1.9 percentage points of the P&C combined ratio) and $116 million, respectively. This compares with $222 million (2.2 percentage points of the P&C combined ratio) and $162 million, respectively, in the prior year period.
•The P&C combined ratio was 88.4 percent compared with 93.1 percent in the prior year period. The current year P&C combined ratio decreased primarily due to lower catastrophe losses, partially offset by lower favorable prior period development. The P&C current accident year (CAY) combined ratio excluding catastrophe losses was 84.3 percent compared with 84.0 percent in the prior year period.
•Net investment income was a record $1.3 billion compared with $979 million in the prior year period, primarily reflecting higher reinvestment rates and the consolidation of Huatai Group.
•Operating cash flow was a record $4.7 billion compared with $3.4 billion in the prior year period.
•Chubb shareholders' equity decreased 1.0 percent in the quarter, as net income attributable to Chubb was more than offset by net unrealized losses and total capital returned to shareholders of $1.0 billion. Shareholders' equity also includes a one-time net realized and unrealized gain of $727 million, principally reflecting the discontinuation of the equity method of accounting upon the consolidation of Huatai. Total capital returned to shareholders comprises share repurchases of $606 million, at an average purchase price of $205.44 per share, and dividends of $352 million. We previously announced that our Board of Directors approved a new share repurchase program of up to $5 billion with no expiration date, effective July 1, 2023.
•Effective January 1, 2023, we adopted the Long-Duration Targeted Improvements (LDTI) U.S. GAAP guidance, which principally impacted the Life Insurance segment. Financial data for the prior reporting periods in this report are adjusted, as applicable, and are presented in accordance with the new guidance. The impact to 2022 results was immaterial.
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Net Premiums Written | Three Months Ended September 30 |  | % Change |  | Nine Months Ended September 30 |  | % Change
(in millions of U.S. dollars, except for percentages) | 2023 |  | 2022 |  | Q-23 vs. Q-22 | C$ Q-23 vs. Q-22 |  | 2023 |  | 2022 |  | YTD-23 vs. YTD-22 | C$ YTD-23 vs. YTD-22
Commercial casualty | $ | 2,332 |  | $ | 2,167 |  | 7.6 | % | 7.2 | % |  | $ | 6,259 |  | $ | 5,777 |  | 8.3 | % | 9.1 | %
Workers' compensation | 538 |  | 476 |  | 13.1 | % | 13.1 | % |  | 1,693 |  | 1,625 |  | 4.2 | % | 4.2 | %
Financial lines | 1,333 |  | 1,270 |  | 4.9 | % | 4.5 | % |  | 3,733 |  | 3,727 |  | 0.2 | % | 0.9 | %
Surety | 172 |  | 152 |  | 13.1 | % | 10.0 | % |  | 506 |  | 477 |  | 6.1 | % | 5.0 | %
Commercial multiple peril (1) | 398 |  | 341 |  | 16.9 | % | 16.9 | % |  | 1,129 |  | 972 |  | 16.2 | % | 16.2 | %
Property and other short-tail lines | 2,082 |  | 1,756 |  | 18.5 | % | 17.8 | % |  | 6,453 |  | 5,503 |  | 17.3 | % | 18.3 | %
Total Commercial P&C lines | 6,855 |  | 6,162 |  | 11.2 | % | 10.7 | % |  | 19,773 |  | 18,081 |  | 9.4 | % | 10.0 | %
Agriculture | 1,521 |  | 1,723 |  | (11.7) | % | (11.7) | % |  | 2,581 |  | 2,523 |  | 2.3 | % | 2.3 | %
Personal automobile | 547 |  | 404 |  | 35.3 | % | 26.7 | % |  | 1,434 |  | 1,239 |  | 15.7 | % | 10.8 | %
Personal homeowners | 1,192 |  | 1,023 |  | 16.5 | % | 16.6 | % |  | 3,268 |  | 2,910 |  | 12.3 | % | 12.8 | %
Personal other | 474 |  | 451 |  | 5.3 | % | 2.7 | % |  | 1,466 |  | 1,406 |  | 4.3 | % | 5.3 | %
Total Personal lines | 2,213 |  | 1,878 |  | 17.9 | % | 15.5 | % |  | 6,168 |  | 5,555 |  | 11.0 | % | 10.4 | %
Global A&H - P&C | 802 |  | 719 |  | 11.4 | % | 8.9 | % |  | 2,397 |  | 2,152 |  | 11.4 | % | 12.4 | %
Reinsurance lines | 261 |  | 265 |  | (1.4) | % | (1.8) | % |  | 831 |  | 780 |  | 6.5 | % | 6.9 | %
Total Property and Casualty lines | 11,652 |  | 10,747 |  | 8.4 | % | 7.6 | % |  | 31,750 |  | 29,091 |  | 9.1 | % | 9.5 | %
Life Insurance | 1,452 |  | 1,265 |  | 14.9 | % | 15.2 | % |  | 4,015 |  | 2,403 |  | 67.1 | % | 68.4 | %
Total consolidated | $ | 13,104 |  | $ | 12,012 |  | 9.1 | % | 8.4 | % |  | $ | 35,765 |  | $ | 31,494 |  | 13.6 | % | 14.0 | %

(1)Commercial multiple peril represents retail package business (property and general liability).
The increase in consolidated net premiums written for the three and nine months ended September 30, 2023, reflects growth across most product lines driven by strong premium retention, including rate and exposure increases, and strong new business. The consolidation of Huatai Group contributed $365 million, or 2.9 percentage points and 1.1 percentage points, for the three and nine months ended September 30, 2023, respectively.
•Commercial casualty grew in all regions globally, principally in North America and Europe, driven by strong premium retention, including both rate and exposure increases, and strong new business.
•Workers' compensation growth reflects increased audit exposure in North America.
•Commercial multiple peril increased due to strong premium retention, including both rate and exposure increases, and strong new business in North America.
•Property and other short-tail lines grew globally due to strong premium retention, including both rate and exposure increases, and strong new business.
•Agriculture decreased in the quarter mainly due to the timing of premium recognition this year versus last year, and a modest increase in the premium the company shared with the Federal Government. Growth for the year reflects the above factors and the prior year return of premium to the U.S. government of $161 million.
•Personal lines grew principally in North America and Europe, with growth strongest in homeowners.
•Global A&H – P&C increased primarily due to the acquisition of Cigna's business in Asia; and higher new business and increased consumer activity, including higher travel volume, in Europe, Latin America, and Japan.
•Reinsurance lines decreased in the quarter, as continued growth in the portfolio, primarily in property lines, was more than offset by the impact of catastrophe reinstatement premiums recognized in the prior year. Growth for the year reflects continued growth in the portfolio, primarily in property lines, partially offset by the impact of catastrophe reinstatement premiums recognized in the prior year.
•Life increased primarily due to the consolidation of Huatai Group in the third quarter of 2023, which contributed $149 million or 11.9 percentage points. Growth for the year is primarily due to the acquisition of Cigna's business in Asia, and growth in Latin America and Asia.
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For additional information on net premiums written, refer to the segment results discussions.
Net Premiums Earned
Net premiums earned for short-duration contracts, typically P&C contracts, generally reflect the portion of net premiums written that was recorded as revenues for the period as the exposure periods expire. Net premiums earned for long-duration contracts, typically traditional life contracts, generally are recognized as earned when due from policyholders. For the three months ended September 30, 2023, net premiums earned increased $1.1 billion, up 9.9 percent, or 9.0 percent in constant dollars. P&C net premiums earned increased 9.2 percent, or 8.1 percent in constant dollars, comprising growth in commercial and consumer lines of 6.9 percent and 11.9 percent, respectively. For the nine months ended September 30, 2023, net premiums earned increased $4.0 billion, up 13.4 percent, or 13.7 percent in constant dollars. P&C net premiums earned increased 8.6 percent, or 8.8 percent in constant dollars, comprising growth in commercial and consumer lines of 8.7 percent and 9.3 percent, respectively.
Catastrophe Losses and Prior Period Development
We generally define catastrophe loss events consistent with the definition of the Property Claims Service (PCS) for events in the U.S. and Canada. PCS defines a catastrophe as an event that causes damage of $25 million or more in insured losses and affects a significant number of insureds. For events outside of the U.S. and Canada, we generally use a similar definition.
Prior period development (PPD) arises from changes to loss estimates recognized in the current year that relate to loss events that occurred in previous calendar years and excludes the effect of losses from the development of earned premium from previous accident years. PPD includes adjustments relating to either profit commission reserves or policyholder dividend reserves based on actual claim experience that develops after the policy period ends. The expense adjustments correlate to the prior period loss development on these same policies. Refer to the Non-GAAP Reconciliation section for further information on reinstatement premiums on catastrophe losses and adjustments to prior period development.

| Three Months Ended |  | Nine Months Ended
| September 30 |  | September 30
(in millions of U.S. dollars) | 2023 |  | 2022 |  | 2023 |  | 2022
Catastrophe losses | $ | 670 |  |  | $ | 1,158 |  |  | $ | 1,528 |  |  | $ | 1,782 |
Favorable prior period development | $ | 200 |  |  | $ | 222 |  |  | $ | 596 |  |  | $ | 709 |

Catastrophe losses through September 30, 2023 and 2022, were primarily from the following events:
•2023: Severe weather-related events in the U.S. and internationally, Hawaii wildfires, and New Zealand storms.
•2022: Hurricane Ian losses of $975 million, severe weather-related events in the U.S. and internationally, Australia storms, and Colorado wildfires.
Pre-tax net favorable PPD for the three months ended September 30, 2023, was $200 million, including adverse development of $116 million in long-tail lines, with $50 million related to legacy environmental exposures. Net favorable development of $316 million in short-tail lines is primarily in property lines.
Pre-tax net favorable PPD for the nine months ended September 30, 2023, was $596 million, including adverse development of $50 million related to legacy environmental exposures and $49 million for molestation claims. Excluding the adverse development, we had net favorable development of $695 million with 5 percent in long-tail lines, principally from accident years 2013 through 2019, and 95 percent in short-tail lines, primarily in property, A&H, and surety lines.
Pre-tax net favorable PPD for the three months ended September 30, 2022, was $222 million, including adverse development of $52 million related to legacy environmental exposures. Excluding the adverse development, we had favorable development of $274 million, with 5 percent in long-tail lines, principally from accident years 2018 and prior, and 95 percent in short-tail lines, primarily in property lines.
Pre-tax net favorable PPD for the nine months ended September 30, 2022, was $709 million, including adverse development of $155 million for molestation claims, predominantly reviver statute-related, and adverse development of $52 million related to legacy environmental exposures. The molestation adverse development includes no change to the previously established reserve for the Boy Scouts of America settlement. Excluding the adverse development, we had favorable development of $916 million with 29 percent in long-tail lines, principally from accident years 2018 and prior, and 71 percent in short-tail lines, primarily in property and A&H lines.
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Refer to the prior period development discussion in Note 8 to the Consolidated Financial Statements for additional information.
P&C Combined Ratio
In evaluating our segments, excluding Life Insurance financial performance, we use the P&C combined ratio. We calculate this ratio by dividing the respective expense amounts by net premiums earned. We do not calculate this ratio for the Life Insurance segment as we do not use this measure to monitor or manage that segment. A P&C combined ratio under 100 percent indicates underwriting income, and a combined ratio exceeding 100 percent indicates underwriting loss.

| Three Months Ended |  | Nine Months Ended
| September 30 |  | September 30
| 2023 |  | 2022 |  | 2023 |  | 2022
Loss and loss expense ratio |  |  |  |  |  |  |
CAY loss ratio excluding catastrophe losses | 60.1 | % |  | 60.6 | % |  | 58.0 | % |  | 58.4 | %
Catastrophe losses | 5.9 | % |  | 11.4 | % |  | 5.0 | % |  | 6.6 | %
Prior period development | (2.0) | % |  | (2.4) | % |  | (2.1) | % |  | (3.0) | %
Loss and loss expense ratio | 64.0 | % |  | 69.6 | % |  | 60.9 | % |  | 62.0 | %
Policy acquisition cost ratio | 16.9 | % |  | 16.6 | % |  | 17.8 | % |  | 17.7 | %
Administrative expense ratio | 7.5 | % |  | 6.9 | % |  | 8.1 | % |  | 7.8 | %
P&C Combined ratio | 88.4 | % |  | 93.1 | % |  | 86.8 | % |  | 87.5 | %

The loss and loss expense ratio decreased for the three and nine months ended September 30, 2023, reflecting lower catastrophe losses, partially offset by lower favorable prior period development. The CAY loss ratio excluding catastrophe losses decreased for the three and nine months ended September 30, 2023, primarily from a higher percentage of net premiums earned from lines with a lower loss ratio.
The policy acquisition cost ratio increased for the three months ended September 30, 2023, primarily due to changes in mix of business away from products that have a lower acquisition cost ratio.
The administrative expense ratio increased for the three and nine months ended September 30, 2023, primarily due to higher pension expenses and higher employee-related expenses, partially offset by the favorable impact of higher net premiums earned. The increase in pension expense reflects the adverse impact of market conditions in 2022 and will continue through 2023.
Policy benefits
Policy benefits represent losses on contracts classified as long-duration and generally include accident and supplemental health products, term and whole life products, endowment products, and annuities. Policy benefits for the three and nine months ended September 30, 2023, include the results of Huatai Group from July 1, 2023. In addition, Policy benefits for the three and nine months ended September 30, 2023, include the results of Cigna's business acquired during the third quarter of 2022. Refer to the Life Insurance segment operating results section for further discussion.
For the three months ended September 30, 2023 and 2022, Policy benefits were $938 million and $707 million, respectively, which include (gains) losses from fair value changes in separate account liabilities that do not qualify for separate account reporting under GAAP of $(19) million and $(67) million, respectively. The offsetting movements of these liabilities are recorded in Other (income) expense on the Consolidated statements of operations. Excluding the separate account gains and losses, Policy benefits were $957 million and $774 million for the three months ended September 30, 2023 and 2022, respectively.
For the nine months ended September 30, 2023 and 2022, Policy benefits were $2,565 million and $1,441 million, respectively, which include (gains) losses from fair value changes in separate account liabilities that do not qualify for separate account reporting under GAAP of $(56) million and $(116) million, respectively. The offsetting movements of these liabilities are recorded in Other (income) expense on the Consolidated statements of operations. Excluding the separate account gains and losses, Policy benefits were $2,621 million and $1,557 million for the nine months ended September 30, 2023 and 2022, respectively.
Refer to the respective sections that follow for a discussion of Net investment income, Other (income) expense, Net realized gains (losses), Amortization of purchased intangibles, and Income tax expense.
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Segment Operating Results – Three and Nine Months Ended September 30, 2023 and 2022

We operate through six business segments: North America Commercial P&C Insurance, North America Personal P&C Insurance, North America Agricultural Insurance, Overseas General Insurance, Global Reinsurance, and Life Insurance. For more information on our segments refer to “Segment Information” under Item 1 in our 2022 Form 10-K.
North America Commercial P&C Insurance
The North America Commercial P&C Insurance segment comprises operations that provide P&C insurance and services to large, middle market, and small commercial businesses in the U.S., Canada, and Bermuda. This segment includes our North America Major Accounts and Specialty Insurance division (large corporate accounts and wholesale business), and the North America Commercial Insurance division (principally middle market and small commercial accounts).

| Three Months Ended |  |  |  |  | Nine Months Ended |  |  |
| September 30 |  | % Change |  | September 30 |  | % Change
(in millions of U.S. dollars, except for percentages) | 2023 |  |  | 2022 |  |  | Q-23 vs. Q-22 |  | 2023 |  |  | 2022 |  |  | YTD-23 vs. YTD-22
Net premiums written | $ | 5,132 |  |  | $ | 4,722 |  |  | 8.7 | % |  | $ | 14,575 |  | $ | 13,426 |  | 8.6 | %
Net premiums earned | 4,735 |  |  | 4,283 |  |  | 10.6 | % |  | 13,710 |  | 12,645 |  | 8.4 | %
Losses and loss expenses | 3,025 |  |  | 3,036 |  |  | (0.4) | % |  | 8,625 |  | 7,979 |  | 8.1 | %
Policy acquisition costs | 640 |  |  | 583 |  |  | 9.9 | % |  | 1,867 |  | 1,701 |  | 9.8 | %
Administrative expenses | 323 |  |  | 272 |  |  | 19.3 | % |  | 934 |  | 814 |  | 14.9 | %
Underwriting income | 747 |  |  | 392 |  |  | 90.7 | % |  | 2,284 |  | 2,151 |  | 6.2 | %
Net investment income | 780 |  |  | 589 |  |  | 32.5 | % |  | 2,204 |  | 1,600 |  | 37.7 | %
Other (income) expense | 6 |  |  | 6 |  |  | — |  |  | 18 |  | 12 |  | 48.3 | %
Segment income | $ | 1,521 |  |  | $ | 975 |  |  | 56.0 | % |  | $ | 4,470 |  | $ | 3,739 |  | 19.6 | %
Loss and loss expense ratio: |  |  |  |  |  |  |  |  |  |  |  |  |
CAY loss ratio excluding catastrophe losses | 61.1 | % |  | 61.5 | % |  | (0.4) |  | pts |  | 60.8 | % |  | 61.5 | % |  | (0.7) |  | pts
Catastrophe losses | 5.2 | % |  | 14.0 | % |  | (8.8) |  | pts |  | 4.7 | % |  | 6.3 | % |  | (1.6) |  | pts
Prior period development | (2.4) | % |  | (4.6) | % |  | 2.2 |  | pts |  | (2.6) | % |  | (4.7) | % |  | 2.1 |  | pts
Loss and loss expense ratio | 63.9 | % |  | 70.9 | % |  | (7.0) |  | pts |  | 62.9 | % |  | 63.1 | % |  | (0.2) |  | pts
Policy acquisition cost ratio | 13.5 | % |  | 13.6 | % |  | (0.1) |  | pts |  | 13.6 | % |  | 13.5 | % |  | 0.1 |  | pts
Administrative expense ratio | 6.8 | % |  | 6.4 | % |  | 0.4 |  | pts |  | 6.8 | % |  | 6.4 | % |  | 0.4 |  | pts
Combined ratio | 84.2 | % |  | 90.9 | % |  | (6.7) |  | pts |  | 83.3 | % |  | 83.0 | % |  | 0.3 |  | pts

Catastrophe Losses and Prior Period Development | Three Months Ended |  | Nine Months Ended
| September 30 |  | September 30
(in millions of U.S. dollars) | 2023 |  | 2022 |  | 2023 |  | 2022
Catastrophe losses | $ | 246 |  |  | $ | 598 |  |  | $ | 639 |  |  | $ | 803 |
Favorable prior period development | $ | 84 |  |  | $ | 166 |  |  | $ | 302 |  |  | $ | 561 |

Catastrophe losses through September 30, 2023 and 2022, were primarily from the following events:
•2023: U.S. flooding, hail, tornadoes, wind events, winter storm losses, and Hawaii wildfires.
•2022: Hurricane Ian losses, severe weather-related events and winter storm losses in the U.S.
Refer to Note 8 in the Consolidated Financial Statements for detail on prior period development.
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Premiums
Net premiums written increased $410 million, or 8.7 percent, and $1,149 million, or 8.6 percent for the three and nine months ended September 30, 2023, respectively, reflecting strong premium retention, including both rate and exposure increases, strong new business, as well as an increase in workers' compensation audit exposure in the current year. The increase in premiums was across most lines of business, most notably in property, but also in casualty and commercial multiple peril.
Net premiums earned increased $452 million, or 10.6 percent, and $1,065 million, or 8.4 percent for the three and nine months ended September 30, 2023, respectively, reflecting the growth in net premiums written described above.
Combined Ratio
The CAY loss ratio excluding catastrophe losses decreased for the three and nine months ended September 30, 2023, primarily from a higher percentage of net premiums earned from lines that have a lower loss ratio. The loss and loss expense ratio decreased for the three and nine months ended September 30, 2023, primarily from lower catastrophe losses and a higher percentage of premiums earned from lines that have a lower loss ratio, partially offset by lower favorable prior period development. Refer to Note 8 in the Consolidated Financial Statements for detail on prior period development.
The administrative expense ratio increased for the three and nine months ended September 30, 2023, primarily from higher pension expenses and higher employee-related expenses, partially offset by the favorable impact of higher net premiums earned. The increase in pension expense reflects the adverse impact of market conditions in 2022, and will continue through 2023.
North America Personal P&C Insurance
The North America Personal P&C Insurance segment comprises operations that provide high net worth personal lines products, including homeowners and complementary products such as valuable articles, excess liability, automobile, and recreational marine insurance and services in the U.S. and Canada.

| Three Months Ended |  |  |  |  | Nine Months Ended |  |  |
| September 30 |  | % Change |  | September 30 |  | % Change
(in millions of U.S. dollars, except for percentages) | 2023 |  |  | 2022 |  |  | Q-23 vs. Q-22 |  | 2023 |  |  | 2022 |  |  | YTD-23 vs. YTD-22
Net premiums written | $ | 1,527 |  |  | $ | 1,392 |  |  | 9.6 | % |  | $ | 4,404 |  |  | $ | 3,998 |  |  | 10.1 | %
Net premiums earned | 1,407 |  |  | 1,334 |  |  | 5.5 | % |  | 4,084 |  |  | 3,852 |  |  | 6.0 | %
Losses and loss expenses | 900 |  |  | 857 |  |  | 5.1 | % |  | 2,634 |  |  | 2,343 |  |  | 12.4 | %
Policy acquisition costs | 287 |  |  | 274 |  |  | 4.6 | % |  | 836 |  |  | 792 |  |  | 5.6 | %
Administrative expenses | 84 |  |  | 71 |  |  | 18.9 | % |  | 247 |  |  | 213 |  |  | 15.7 | %
Underwriting income | 136 |  |  | 132 |  |  | 2.6 | % |  | 367 |  |  | 504 |  |  | (27.3) | %
Net investment income | 94 |  |  | 76 |  |  | 23.5 | % |  | 262 |  |  | 199 |  |  | 31.3 | %
Other (income) expense | 2 |  |  | 1 |  |  | NM |  | 2 |  |  | 3 |  |  | NM
Amortization of purchased intangibles | 3 |  |  | 2 |  |  | NM |  | 8 |  |  | 7 |  |  | NM
Segment income | $ | 225 |  |  | $ | 205 |  |  | 10.5 | % |  | $ | 619 |  |  | $ | 693 |  |  | (10.6) | %
Loss and loss expense ratio: |  |  |  |  |  |  |  |  |  |  |  |  |
CAY loss ratio excluding catastrophe losses | 52.4 | % |  | 53.6 | % |  | (1.2) |  | pts |  | 53.4 | % |  | 53.5 | % |  | (0.1) |  | pts
Catastrophe losses | 19.8 | % |  | 20.6 | % |  | (0.8) |  | pts |  | 14.3 | % |  | 12.2 | % |  | 2.1 |  | pts
Prior period development | (8.3) | % |  | (10.0) | % |  | 1.7 |  | pts |  | (3.2) | % |  | (4.9) | % |  | 1.7 |  | pts
Loss and loss expense ratio | 63.9 | % |  | 64.2 | % |  | (0.3) |  | pts |  | 64.5 | % |  | 60.8 | % |  | 3.7 |  | pts
Policy acquisition cost ratio | 20.4 | % |  | 20.6 | % |  | (0.2) |  | pts |  | 20.5 | % |  | 20.6 | % |  | (0.1) |  | pts
Administrative expense ratio | 6.0 | % |  | 5.3 | % |  | 0.7 |  | pts |  | 6.0 | % |  | 5.5 | % |  | 0.5 |  | pts
Combined ratio | 90.3 | % |  | 90.1 | % |  | 0.2 |  | pts |  | 91.0 | % |  | 86.9 | % |  | 4.1 |  | pts

NM - Not meaningful
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Catastrophe Losses and Prior Period Development | Three Months Ended |  | Nine Months Ended
| September 30 |  | September 30
(in millions of U.S. dollars) | 2023 |  | 2022 |  | 2023 |  | 2022
Catastrophe losses | $ | 280 |  |  | $ | 274 |  |  | $ | 586 |  |  | $ | 469 |
Favorable prior period development | $ | 119 |  |  | $ | 133 |  |  | $ | 135 |  |  | $ | 187 |

Catastrophe losses through September 30, 2023 and 2022, were primarily from the following events:
•2023: U.S. flooding, hail, tornadoes, wind events, winter storm losses, and Hawaii wildfires.
•2022: Hurricane Ian losses, severe weather-related events in the U.S. and Colorado wildfires.
Refer to Note 8 in the Consolidated Financial Statements for detail on prior period development.
Premiums
Net premiums written increased $135 million, or 9.6 percent, and $406 million, or 10.1 percent for the three and nine months ended September 30, 2023, respectively, primarily driven by strong new business and strong renewal retention, from both rate and exposure increases, across most lines, but most notably in homeowners.
Net premiums earned increased $73 million, or 5.5 percent, and $232 million, or 6.0 percent for the three and nine months ended September 30, 2023, respectively, reflecting the growth in net premiums written described above.
Combined Ratio
The CAY loss ratio excluding catastrophe losses decreased for the three and nine months ended September 30, 2023, primarily reflecting earned rate and exposure exceeding loss cost trends, as well as lower actual loss experience in homeowners, partially offset by higher auto and excess liability losses. The loss and loss expense ratio decreased for the three months ended September 30, 2023, primarily reflecting the factors mentioned above, as well as a lower impact from catastrophe losses, partially offset by lower favorable prior period development. The loss and loss expense ratio increased for the nine months ended September 30, 2023, primarily reflecting higher catastrophe losses in the current year and lower favorable prior period development.
The administrative expense ratio increased for the three and nine months ended September 30, 2023, primarily from higher pension expenses, partially offset by the favorable impact of higher net premiums earned. The increase in pension expense reflects the adverse impact of market conditions in 2022, and will continue through 2023.
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North America Agricultural Insurance
The North America Agricultural Insurance segment comprises our North American based businesses that provide a variety of coverages in the U.S. and Canada including crop insurance, primarily Multiple Peril Crop Insurance (MPCI) and crop-hail through Rain and Hail Insurance Service, Inc. (Rain and Hail), as well as farm and ranch and specialty P&C commercial insurance products and services through our Chubb Agribusiness unit.

| Three Months Ended |  |  |  |  | Nine Months Ended |  |  |
| September 30 |  | % Change |  | September 30 |  | % Change
(in millions of U.S. dollars, except for percentages) | 2023 |  |  | 2022 |  |  | Q-23 vs. Q-22 |  | 2023 |  |  | 2022 |  |  | YTD-23 vs. YTD-22
Net premiums written | $ | 1,521 |  |  | $ | 1,723 |  |  | (11.7) | % |  | $ | 2,581 |  |  | $ | 2,523 |  |  | 2.3 | %
Net premiums earned | 1,540 |  |  | 1,673 |  |  | (8.0) | % |  | 2,334 |  |  | 2,217 |  |  | 5.3 | %
Losses and loss expenses | 1,356 |  |  | 1,444 |  |  | (6.1) | % |  | 2,003 |  |  | 1,830 |  |  | 9.5 | %
Policy acquisition costs | 76 |  |  | 68 |  |  | 11.1 | % |  | 128 |  |  | 111 |  |  | 15.0 | %
Administrative expenses | 3 |  |  | 3 |  |  | — |  |  | 9 |  |  | 4 |  |  | 120.9 | %
Underwriting income | 105 |  |  | 158 |  |  | (33.4) | % |  | 194 |  |  | 272 |  |  | (28.7) | %
Net investment income | 12 |  |  | 9 |  |  | 47.3 | % |  | 43 |  |  | 23 |  |  | 91.7 | %
Other (income) expense | — |  |  | 1 |  |  | NM |  | — |  |  | 1 |  |  | NM
Amortization of purchased intangibles | 6 |  |  | 7 |  |  | (2.4) | % |  | 19 |  |  | 20 |  |  | (2.4) | %
Segment income | $ | 111 |  |  | $ | 159 |  |  | (30.3) | % |  | $ | 218 |  |  | $ | 274 |  |  | (20.5) | %
Loss and loss expense ratio: |  |  |  |  |  |  |  |  |  |  |  |  |
CAY loss ratio excluding catastrophe losses | 87.5 | % |  | 84.0 | % |  | 3.5 |  | pts |  | 84.7 | % |  | 82.2 | % |  | 2.5 |  | pts
Catastrophe losses | 1.2 | % |  | 1.8 | % |  | (0.6) |  | pts |  | 1.6 | % |  | 2.3 | % |  | (0.7) |  | pts
Prior period development | (0.6) | % |  | 0.5 | % |  | (1.1) |  | pts |  | (0.5) | % |  | (2.0) | % |  | 1.5 |  | pts
Loss and loss expense ratio | 88.1 | % |  | 86.3 | % |  | 1.8 |  | pts |  | 85.8 | % |  | 82.5 | % |  | 3.3 |  | pts
Policy acquisition cost ratio | 4.9 | % |  | 4.1 | % |  | 0.8 |  | pts |  | 5.5 | % |  | 5.1 | % |  | 0.4 |  | pts
Administrative expense ratio | 0.2 | % |  | 0.2 | % |  | — |  | pts |  | 0.4 | % |  | 0.2 | % |  | 0.2 |  | pts
Combined ratio | 93.2 | % |  | 90.6 | % |  | 2.6 |  | pts |  | 91.7 | % |  | 87.8 | % |  | 3.9 |  | pts

NM - Not meaningful

Catastrophe Losses and Prior Period Development | Three Months Ended |  | Nine Months Ended
| September 30 |  | September 30
(in millions of U.S. dollars) | 2023 |  | 2022 |  | 2023 |  | 2022
Catastrophe losses | $ | 18 |  |  | $ | 31 |  |  | $ | 37 |  |  | $ | 52 |
Favorable (unfavorable) prior period development | $ | 9 |  |  | $ | (9) |  |  | $ | 12 |  |  | $ | 17 |

Catastrophe losses through September 30, 2023 and 2022, were primarily from the following events:
•2023: U.S. flooding, hail, tornadoes, and wind events.
•2022: Hurricane Ian losses, severe weather-related events in Chubb Agribusiness, and winter storm losses in the U.S.
Refer to Note 8 in the Consolidated Financial Statements for detail on prior period development.
Premiums
Net premiums written decreased $202 million, or 11.7 percent for the three months ended September 30, 2023, mainly due to the timing of premium recognition this year versus last year, and a modest increase in the premium the company shared with the Federal Government. Net premiums written increased $58 million, or 2.3 percent for the nine months ended September 30, 2023, reflecting the return of premium to the U.S. government of $161 million in the first quarter of 2022 as part of a profit-sharing agreement and strong new business in Chubb Agribusiness, partially offset by higher cessions to the U.S. government in
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the current year. Under the profit-sharing agreement, we returned additional premiums to the government because of the lower losses experienced in certain states in 2021.
Net premiums earned decreased $133 million, or 8.0 percent for the three months ended September 30, 2023, and increased $117 million, or 5.3 percent for the nine months ended September 30, 2023, reflecting the factors described above.
Combined Ratio
The CAY loss ratio excluding catastrophe losses increased for the three and nine months ended September 30, 2023, which contemplates a lower underwriting gain for the current crop year, partially offset by the year-over-year impact of crop commodity price hedge activity, which had a favorable impact of 0.7 percentage points and 0.2 percentage points, respectively. Estimated development for the current crop year was recognized this quarter compared to the fourth quarter in the prior year. The loss and loss expense ratio increased for the three and nine months ended September 30, 2023, reflecting the factors mentioned above. The increase for the three months ended September 30, 2023, was partially offset by favorable prior period development, compared with unfavorable prior period development in the prior year, and lower catastrophe losses. The increase in loss and loss expense ratio for the nine months ended September 30, 2023, also reflects the prior year impact of the return of premium to the U.S. government mentioned above, which had a corresponding reduction in incurred losses, and lower favorable prior period development, partially offset by lower catastrophe losses.
The policy acquisition cost ratio increased for the three and nine months ended September 30, 2023, reflecting changes in mix of business away from products that have a lower acquisition cost ratio.
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Overseas General Insurance
Overseas General Insurance segment comprises Chubb International and Chubb Global Markets (CGM). Chubb International comprises our international commercial P&C traditional and specialty lines serving large corporations, middle market and small customers; A&H and traditional and specialty personal lines business serving local territories outside the U.S., Bermuda, and Canada. CGM, our London-based international commercial P&C excess and surplus lines business, includes Lloyd's of London (Lloyd's) Syndicate 2488. Chubb provides funds at Lloyd's to support underwriting by Syndicate 2488 which is managed by Chubb Underwriting Agencies Limited. Effective July 1, 2023, the Overseas General Insurance segment includes 100 percent of the results of Huatai Group's P&C business as required under consolidation accounting. We previously included our share of Huatai results based on our equity method investment within Other (income) expense.

| Three Months Ended |  |  |  |  | Nine Months Ended |  |  |
| September 30 |  | % Change |  | September 30 |  | % Change
(in millions of U.S. dollars, except for percentages) | 2023 |  |  | 2022 |  |  | Q-23 vs. Q-22 |  | 2023 |  |  | 2022 |  |  | YTD-23 vs. YTD-22
Net premiums written | $ | 3,211 |  |  | $ | 2,645 |  |  | 21.4 | % |  | $ | 9,359 |  |  | $ | 8,364 |  |  | 11.9 | %
Net premiums written - constant dollars |  |  |  |  | 17.3 | % |  |  |  |  |  | 12.7 | %
Net premiums earned | 3,311 |  |  | 2,741 |  |  | 20.8 | % |  | 9,005 |  |  | 8,065 |  |  | 11.7 | %
Loss and loss expenses | 1,635 |  |  | 1,333 |  |  | 22.7 | % |  | 4,139 |  |  | 3,772 |  |  | 9.7 | %
Policy benefits | 91 |  |  | 108 |  |  | (15.7) | % |  | 338 |  |  | 282 |  |  | 19.9 | %
Policy acquisition costs | 827 |  |  | 720 |  |  | 14.8 | % |  | 2,286 |  |  | 2,096 |  |  | 9.1 | %
Administrative expenses | 327 |  |  | 264 |  |  | 24.3 | % |  | 899 |  |  | 811 |  |  | 10.9 | %
Underwriting income | 431 |  |  | 316 |  |  | 36.2 | % |  | 1,343 |  |  | 1,104 |  |  | 21.7 | %
Net investment income | 248 |  |  | 151 |  |  | 63.6 | % |  | 636 |  |  | 460 |  |  | 38.2 | %
Other (income) expense | (10) |  |  | (2) |  |  | NM |  | (29) |  |  | 3 |  |  | NM
Amortization of purchased intangibles | 19 |  |  | 12 |  |  | 52.4 | % |  | 52 |  |  | 40 |  |  | 27.6 | %
Segment income | $ | 670 |  |  | $ | 457 |  |  | 46.7 | % |  | $ | 1,956 |  |  | $ | 1,521 |  |  | 28.6 | %
Loss and loss expense ratio: |  |  |  |  |  |  |  |  |  |  |  |  |
CAY loss ratio excluding catastrophe losses | 50.0 | % |  | 49.2 | % |  | 0.8 |  | pts |  | 49.7 | % |  | 49.5 | % |  | 0.2 |  | pts
Catastrophe losses | 3.6 | % |  | 3.6 | % |  | — |  | pts |  | 2.9 | % |  | 3.7 | % |  | (0.8) |  | pts
Prior period development | (1.5) | % |  | (0.2) | % |  | (1.3) |  | pts |  | (2.9) | % |  | (2.9) | % |  | — |  | pts
Loss and loss expense ratio | 52.1 | % |  | 52.6 | % |  | (0.5) |  | pts |  | 49.7 | % |  | 50.3 | % |  | (0.6) |  | pts
Policy acquisition cost ratio | 25.0 | % |  | 26.3 | % |  | (1.3) |  | pts |  | 25.4 | % |  | 26.0 | % |  | (0.6) |  | pts
Administrative expense ratio | 9.9 | % |  | 9.6 | % |  | 0.3 |  | pts |  | 10.0 | % |  | 10.0 | % |  | — |  | pts
Combined ratio | 87.0 | % |  | 88.5 | % |  | (1.5) |  | pts |  | 85.1 | % |  | 86.3 | % |  | (1.2) |  | pts

NM - Not meaningful
Catastrophe Losses and Prior Period Development

| Three Months Ended |  | Nine Months Ended
| September 30 |  | September 30
(in millions of U.S. dollars) | 2023 |  | 2022 |  | 2023 |  | 2022
Catastrophe losses | $ | 120 |  |  | $ | 98 |  |  | $ | 259 |  |  | $ | 298 |
Favorable prior period development | $ | 49 |  |  | $ | 5 |  |  | $ | 253 |  |  | $ | 238 |

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Catastrophe losses through September 30, 2023 and 2022, were primarily from the following events:
•2023: Storms in New Zealand and international weather-related events.
•2022: Hurricane Ian losses, International weather-related events, and storms in Australia.
Refer to Note 8 to the Consolidated Financial Statements for detail on prior period development.

Net Premiums Written by Region | Three months ended September 30
(in millions of U.S. dollars, except for percentages) | 2023 |  |  | 2023 % of Total |  | 2022 |  |  | 2022 % of Total |  | C$ 2022 |  | Q-23 vs. Q-22 |  | C$ Q-23 vs. Q-22
Region |  |  |  |  |
Europe, Middle East, and Africa | $ | 1,264 |  |  | 39 | % |  | $ | 1,133 |  |  | 43 | % |  | $ | 1,176 |  |  | 11.5 | % |  | 7.5 | %
Latin America | 695 |  |  | 22 | % |  | 565 |  |  | 21 | % |  | 628 |  |  | 23.0 | % |  | 10.7 | %
Asia Pacific (1) | 1,099 |  |  | 34 | % |  | 816 |  |  | 31 | % |  | 809 |  |  | 34.5 | % |  | 35.9 | %
Japan | 102 |  |  | 3 | % |  | 101 |  |  | 4 | % |  | 96 |  |  | 0.9 | % |  | 5.5 | %
Other (2) | 51 |  |  | 2 | % |  | 30 |  |  | 1 | % |  | 29 |  |  | 77.7 | % |  | 76.6 | %
Net premiums written | $ | 3,211 |  |  | 100 | % |  | $ | 2,645 |  |  | 100 | % |  | $ | 2,738 |  |  | 21.4 | % |  | 17.3 | %

| Nine months ended September 30
(in millions of U.S. dollars, except for percentages) | 2023 |  |  | 2023 % of Total |  | 2022 |  |  | 2022 % of Total |  | C$ 2022 |  | Y-23 vs. Y-22 |  | C$ Y-23 vs. Y-22
Region |  |  |  |  |
Europe, Middle East, and Africa | $ | 4,292 |  |  | 46 | % |  | $ | 3,990 |  |  | 48 | % |  | $ | 3,921 |  |  | 7.6 | % |  | 9.4 | %
Latin America | 1,969 |  |  | 21 | % |  | 1,719 |  |  | 21 | % |  | 1,827 |  |  | 14.5 | % |  | 7.8 | %
Asia Pacific (1) | 2,644 |  |  | 28 | % |  | 2,192 |  |  | 26 | % |  | 2,127 |  |  | 20.6 | % |  | 24.3 | %
Japan | 349 |  |  | 4 | % |  | 359 |  |  | 4 | % |  | 328 |  |  | (2.8) | % |  | 6.2 | %
Other (2) | 105 |  |  | 1 | % |  | 104 |  |  | 1 | % |  | 101 |  |  | 1.8 | % |  | 3.8 | %
Net premiums written | $ | 9,359 |  |  | 100 | % |  | $ | 8,364 |  |  | 100 | % |  | $ | 8,304 |  |  | 11.9 | % |  | 12.7 | %

(1) 2023 includes the consolidated results of Huatai P&C effective July 1,2023.
(2) Includes the international supplemental A&H business of Combined Insurance and other international operations.
Premiums
Overall, net premiums written increased $566 million and $995 million, or $473 million and $1,055 million on a constant dollar basis, for the three and nine months ended September 30, 2023, respectively, reflecting growth in both commercial and consumer lines. For the three and nine months ended September 30, 2023, commercial lines grew 17.0 percent and 10.5 percent, or 14.6 percent and 12.4 percent on a constant-dollar basis, respectively, and consumer lines grew 28.4 percent and 14.1 percent, or 21.4 percent and 13.2 percent on a constant-dollar basis, respectively.
Our European division increased for the three and nine months ended September 30, 2023, supported by both our wholesale and retail divisions. The growth in commercial lines was primarily driven by higher new business, and positive rate increases, including commercial property and casualty lines. Consumer lines increased primarily due to increased travel volume in A&H.
Latin America increased for the three and nine months ended September 30, 2023, driven by growth in commercial lines due to exposure increases, positive rate increases, and new business, primarily property and casualty lines. Growth in consumer was driven by an increase in personal lines.
Asia Pacific increased for the three and nine months ended September 30, 2023, reflecting the consolidation of Huatai Group's P&C business effective July 1, 2023, higher new business, higher retention and positive rate increases in commercial lines, primarily property and casualty lines. Growth in consumer lines is attributable to the acquisition of Cigna's business in Asia, as well as increased travel in A&H.
Japan increased for the three and nine months ended September 30, 2023, on a constant-dollar basis, primarily from higher new business in A&H.
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Net premiums earned increased $570 million and $940 million, or $460 million and $956 million on a constant-dollar basis, for the three and nine months ended September 30, 2023, respectively, reflecting the increase in net premiums written described above.
Combined Ratio
The loss and loss expense ratio decreased for the three months ended September 30, 2023, due to higher favorable prior period development. The loss and loss expense ratio decreased for the nine months ended September 30, 2023, due to lower catastrophe losses. The CAY loss ratio excluding catastrophe losses increased for the three and nine months ended September 30, 2023, primarily due to higher losses in personal lines.
The policy acquisition cost ratio decreased for the three and nine months ended September 30, 2023, primarily due to a change in the mix of business, including higher premiums earned from commercial lines that have a lower acquisition cost ratio than consumer lines.
The administrative expense ratio increased for the three months ended September 30, 2023, reflecting the impact from the consolidation of Huatai Group's P&C business effective July 1, 2023.
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Global Reinsurance
The Global Reinsurance segment represents our reinsurance operations comprising Chubb Tempest Re Bermuda, Chubb Tempest Re USA, Chubb Tempest Re International, and Chubb Tempest Re Canada. Global Reinsurance markets its reinsurance products worldwide primarily through reinsurance brokers under the Chubb Tempest Re brand name and provides a broad range of traditional and non-traditional reinsurance coverage to a diverse array of primary P&C companies.

| Three Months Ended |  |  |  |  | Nine Months Ended |  |  |
| September 30 |  | % Change |  | September 30 |  | % Change
(in millions of U.S. dollars, except for percentages) | 2023 |  |  | 2022 |  |  | Q-23 vs. Q-22 |  | 2023 |  |  | 2022 |  |  | YTD-23 vs. YTD-22
Net premiums written | $ | 261 |  |  | $ | 265 |  |  | (1.4) | % |  | $ | 831 |  |  | $ | 780 |  |  | 6.5 | %
Net premiums written - constant dollars |  |  |  |  | (1.8) | % |  |  |  |  |  | 6.9 | %
Net premiums earned | 239 |  |  | 255 |  |  | (6.5) | % |  | 720 |  |  | 712 |  |  | 1.0 | %
Losses and loss expenses | 116 |  |  | 311 |  |  | (62.9) | % |  | 319 |  |  | 565 |  |  | (43.6) | %
Policy acquisition costs | 69 |  |  | 59 |  |  | 18.6 | % |  | 196 |  |  | 178 |  |  | 10.2 | %
Administrative expenses | 9 |  |  | 8 |  |  | 4.2 | % |  | 27 |  |  | 27 |  |  | — |
Underwriting income | 45 |  |  | (123) |  |  | NM |  | 178 |  |  | (58) |  |  | NM
Net investment income | 47 |  |  | 71 |  |  | (34.4) | % |  | 144 |  |  | 232 |  |  | (37.9) | %
Other (income) expense | — |  |  | — |  |  | — |  |  | (1) |  |  | 1 |  |  | NM
Segment income (loss) | $ | 92 |  |  | $ | (52) |  |  | NM |  | $ | 323 |  |  | $ | 173 |  |  | 86.7 | %
Loss and loss expense ratio: |  |  |  |  |  |  |  |  |  |  |  |  |
CAY loss ratio excluding catastrophe losses | 45.9 | % |  | 49.6 | % |  | (3.7) |  | pts |  | 47.2 | % |  | 49.8 | % |  | (2.6) |  | pts
Catastrophe losses | 2.6 | % |  | 72.6 | % |  | (70.0) |  | pts |  | 1.0 | % |  | 26.1 | % |  | (25.1) |  | pts
Prior period development | (0.1) | % |  | (0.1) | % |  | — |  | pts |  | (3.9) | % |  | 3.5 | % |  | (7.4) |  | pts
Loss and loss expense ratio | 48.4 | % |  | 122.1 | % |  | (73.7) |  | pts |  | 44.3 | % |  | 79.4 | % |  | (35.1) |  | pts
Policy acquisition cost ratio | 29.1 | % |  | 22.9 | % |  | 6.2 |  | pts |  | 27.2 | % |  | 25.0 | % |  | 2.2 |  | pts
Administrative expense ratio | 3.8 | % |  | 3.4 | % |  | 0.4 |  | pts |  | 3.8 | % |  | 3.8 | % |  | — |  | pts
Combined ratio | 81.3 | % |  | 148.4 | % |  | (67.1) |  | pts |  | 75.3 | % |  | 108.2 | % |  | (32.9) |  | pts

NM - not meaningful
Catastrophe Losses and Prior Period Development

| Three Months Ended |  | Nine Months Ended
| September 30 |  | September 30
(in millions of U.S dollars) | 2023 |  | 2022 |  | 2023 |  | 2022
Catastrophe losses | $ | 6 |  |  | $ | 157 |  |  | $ | 7 |  |  | $ | 160 |
Favorable (unfavorable) prior period development | $ | — |  |  | $ | — |  |  | $ | 25 |  |  | $ | (22) |

Catastrophe losses through September 30, 2023 and 2022, were primarily from the following events:
•2023: Hurricane Idalia.
•2022: Hurricane Ian, and storms in Australia and Canada.
Refer to Note 8 in the Consolidated Financial Statements for detail on prior period development.
Premiums
Net premiums written decreased $4 million for the three months ended September 30, 2023, as continued growth in the portfolio, primarily in property lines, was more than offset by the impact of catastrophe reinstatement premiums recognized in the prior year. Net premiums written increased $51 million for the nine months ended September 30, 2023 reflecting continued growth in the portfolio, primarily in property lines, partially offset by the impact of catastrophe reinstatement premiums recognized in the prior year.
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Net premiums earned decreased $16 million and increased $8 million for the three and nine months ended September 30, 2023, respectively, primarily reflecting the changes in net premiums written described above. The change in net premiums earned also reflects the impact of catastrophe reinstatement premiums recognized in the prior year, which are fully earned when written.
Combined Ratio
The loss and loss expense ratio decreased for the three and nine months ended September 30, 2023, mainly from lower catastrophe losses. The decrease in the loss and loss expense ratio for the nine months ended September 30, 2023, also reflects favorable prior period development compared with unfavorable development in the prior year period. The CAY loss ratio excluding catastrophe losses decreased for the three and nine months ended September 30, 2023, primarily from an improvement in market conditions in several lines of business, including property, casualty, and workers' compensation lines.
The policy acquisition cost ratio increased for the three and nine months ended September 30, 2023, primarily due to lower catastrophe reinstatement premiums recognized in the prior year, which have a lower acquisition cost ratio.
The administrative expense ratio increased for the three months ended September 30, 2023, reflecting the impact of lower net premiums earned, as described above.
Life Insurance
The Life Insurance segment comprises our international life operations, which commencing in the third quarter of 2022, includes Cigna's A&H and life business in Korea, Taiwan, New Zealand, Hong Kong, and Indonesia, acquired on July 1, 2022. Effective July 1, 2023, the Life Insurance segment includes 100 percent of the results of Huatai Group's life and asset management business as required under consolidation accounting. We previously included our share of Huatai results based on our equity method investment within Other (income) expense. The Life Insurance segment also includes Chubb Tempest Life Re (Chubb Life Re), and the North American supplemental A&H and life business of Combined Insurance. Results for the three and nine months ended September 30, 2022, respectively, are adjusted to reflect the adoption of LDTI. Refer to Note 1 c).

| Three Months Ended |  |  |  | Nine Months Ended |  |
| September 30 |  | % Change |  | September 30 |  | % Change
(in millions of U.S. dollars, except for percentages) | 2023 |  | 2022 |  | Q-23 vs. Q-22 |  | 2023 |  | 2022 |  | YTD-23 vs. YTD-22
Net premiums written | $ | 1,452 |  |  | $ | 1,265 |  |  | 14.9 | % |  | $ | 4,015 |  |  | $ | 2,403 |  |  | 67.1 | %
Net premiums written - constant dollars |  |  |  |  | 15.2 | % |  |  |  |  |  | 68.4 | %
Net premiums earned | 1,442 |  |  | 1,244 |  |  | 15.9 | % |  | 3,962 |  |  | 2,325 |  |  | 70.4 | %
Losses and loss expenses | 20 |  |  | 27 |  |  | (29.6) | % |  | 87 |  |  | 78 |  |  | 11.5 | %
Policy benefits | 866 |  |  | 666 |  |  | 30.2 | % |  | 2,283 |  |  | 1,275 |  |  | 79.1 | %
Policy acquisition costs | 279 |  |  | 266 |  |  | 5.1 | % |  | 829 |  |  | 537 |  |  | 54.3 | %
Administrative expenses | 216 |  |  | 174 |  |  | 23.0 | % |  | 553 |  |  | 346 |  |  | 59.5 | %
Net investment income | 211 |  |  | 147 |  |  | 42.5 | % |  | 525 |  |  | 359 |  |  | 45.9 | %
Other (income) expense | (28) |  |  | 4 |  |  | NM |  | (69) |  |  | (38) |  |  | 90.3 | %
Amortization of purchased intangibles | 12 |  |  | 2 |  |  | NM |  | 18 |  |  | 7 |  |  | 170.6 | %
Segment income | $ | 288 |  |  | $ | 252 |  |  | 14.8 | % |  | $ | 786 |  |  | $ | 479 |  |  | 64.6 | %

NM - not meaningful
Premiums
Net premiums written increased $187 million and $1,612 million, or $191 million and $1,631 million on a constant-dollar basis, for the three and nine months ended September 30, 2023, respectively.
For our international life operations, net premiums written increased 19.7 percent for the three months ended September 30, 2023, primarily due to the consolidation of Huatai Group's life business which contributed $149 million or 14.8 percentage points, and growth in Asia and Latin America. Our international life operations net premiums written increased 101.8 percent
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for the nine months ended September 30, 2023, primarily due to the acquisition of Cigna's business in Asia, underlying growth in existing business from Latin America bank distribution channels, and Asia agency and partnership channels.
Net premiums written in our North American Combined Insurance business declined 3.9 percent and 5.5 percent, for the three and nine months ended September 30, 2023, respectively, as growth in the supplemental A&H business was more than offset by the non-renewal of a large program.
Deposits
The following table presents deposits collected on universal life and investment contracts:

| Three Months Ended |  |  |  |  |  | Nine Months Ended |  |  |  |
| September 30 |  | % Change |  | September 30 |  | % Change
(in millions of U.S. dollars, except for percentages) | 2023 |  | 2022 |  | C$ 2022 |  | Q-23 vs. Q-22 |  | C$ Q-23 vs. Q-22 |  | 2023 |  | 2022 |  | C$ 2022 |  | Y-23 vs. Y-22 |  | C$ Y-23 vs. Y-22
Deposits collected on universal life and investment contracts | $ | 388 |  |  | $ | 449 |  |  | $ | 433 |  |  | (13.4) | % |  | (10.2) | % |  | $ | 1,097 |  |  | $ | 1,433 |  |  | $ | 1,352 |  |  | (23.4) | % |  | (18.8) | %

Deposits collected on universal life and investment contracts (life deposits) are not reflected as revenues in our Consolidated statements of operations in accordance with GAAP. New life deposits are an important component of production, and although they do not significantly affect current period income from operations, they are key to our efforts to grow our business. Life deposits collected decreased $61 million and $336 million for the three and nine months ended September 30, 2023, respectively, primarily in Taiwan, reflecting challenging market conditions for deposit products due to market volatility and a rapid increase in interest rates. The decrease in collections was partially offset by deposit growth from the consolidation of Huatai Group.
Life Insurance segment income
Life Insurance segment income increased $36 million for the three months ended September 30, 2023 reflecting the growth in premiums described above, higher net investment income and higher income from Huatai. Life Insurance segment income growth of $307 million for the nine months ended September 30, 2023, also reflects the acquisition of Cigna's business in Asia in the third quarter of 2022, and higher net investment income due to a higher invested asset base.
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Corporate
Corporate results primarily include the results of our non-insurance companies, income and expenses not attributable to reportable segments and loss and loss expenses of asbestos and environmental (A&E) liabilities and certain other non-A&E run-off exposures, including molestation. Effective July 1, 2023, 100 percent of Huatai Group’s non-insurance operations results, comprising real estate and holding company activity, are included in Corporate. Results for the three and nine months ended September 30, 2022, are adjusted to reflect the adoption of LDTI. Refer to Note 1 c).

| Three Months Ended |  |  |  | Nine Months Ended |  |
| September 30 |  | % Change |  | September 30 |  | % Change
(in millions of U.S. dollars, except for percentages) | 2023 |  |  | 2022 |  |  | Q-23 vs. Q-22 |  | 2023 |  |  | 2022 |  | YTD-23 vs. YTD-22
Losses and loss expenses | $ | 61 |  |  | $ | 74 |  |  | (16.0) | % |  | $ | 133 |  |  | $ | 275 |  |  | (51.5) | %
Administrative expenses | 98 |  |  | 91 |  |  | 6.7 | % |  | 290 |  |  | 264 |  |  | 9.7 | %
Underwriting loss | 159 |  |  | 165 |  |  | (3.4) | % |  | 423 |  |  | 539 |  |  | (21.5) | %
Net investment income (loss) | 14 |  |  | 5 |  |  | NM |  | 28 |  |  | (4) |  |  | NM
Other (income) expense | (51) |  |  | 194 |  |  | NM |  | (251) |  |  | 73 |  |  | NM
Amortization of purchased intangibles | 44 |  |  | 46 |  |  | (1.7) | % |  | 129 |  |  | 137 |  |  | (4.9) | %
Net realized gains (losses) | (96) |  |  | (437) |  |  | (78.0) | % |  | (481) |  |  | (927) |  |  | (48.0) | %
Market risk benefits gains (losses) | (32) |  |  | 69 |  |  | NM |  | (154) |  |  | 85 |  |  | NM
Interest expense | 174 |  |  | 150 |  |  | 15.6 | % |  | 499 |  |  | 416 |  |  | 19.8 | %
Cigna integration expenses | 14 |  |  | 23 |  |  | (38.8) | % |  | 51 |  |  | 26 |  |  | 99.4 | %
Income tax expense | 413 |  |  | 263 |  |  | 57.2 | % |  | 1,189 |  |  | 907 |  |  | 31.1 | %
Net loss | (867) |  |  | (1,204) |  |  | (27.8) | % |  | (2,647) |  |  | (2,944) |  |  | (10.0) | %
Net loss attributable to noncontrolling interests | (3) |  |  | — |  |  | NM |  | (3) |  |  | — |  |  | NM
Net loss attributable to Chubb | $ | (864) |  |  | $ | (1,204) |  |  | (28.0) | % |  | $ | (2,644) |  |  | $ | (2,944) |  |  | (10.1) | %

NM - not meaningful
Losses and loss expenses primarily includes unfavorable prior period development for molestation claims and legacy environmental claims.
Administrative expenses increased $7 million and $26 million for the three and nine months ended September 30, 2023, respectively, primarily due to increased spending to support digital growth initiatives.
Cigna integration expenses of $14 million and $51 million for the three and nine months ended September 30, 2023, respectively, principally comprised legal and professional fees and all other costs directly related to the integration activities of the Cigna acquisition. These expenses are one-time in nature and are not related to the on-going business activities of the segments. The Chief Executive Officer does not manage segment results or allocate resources to segments when considering these costs and they are therefore excluded from our definition of segment income.
Refer to the respective sections that follow for a discussion of Net realized gains (losses), Net investment income (loss), Amortization of purchased intangibles, and Income tax expense (benefit). Refer to Notes 11 and 17 to the Consolidated Financial Statements for additional information on Market risk benefits gains (losses) and Other (income) expense, respectively.

Net Realized and Unrealized Gains (Losses)

We take a long-term view with our investment strategy, and our investment managers manage our investment portfolio to maximize total return within specific guidelines designed to minimize risk. The majority of our investment portfolio is available for sale and reported at fair value.
The effect of market movements on our fixed maturities portfolio impacts Net income (through Net realized gains (losses)) when securities are sold, when we write down an asset, or when we record a change to the valuation allowance for expected credit losses. For a further discussion related to how we assess the valuation allowance for expected credit losses and the related impact on Net income, refer to Note 1 e) to the Consolidated Financial Statements in our 2022 Form 10-K. Additionally, Net
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income is impacted through the reporting of changes in the fair value of public and private equity securities and derivatives, including financial futures, options, and swaps. Changes in unrealized appreciation and depreciation on available for sale securities, resulting from the revaluation of securities held, changes in cumulative foreign currency translation adjustment, changes in current discount rate on future policy benefits, changes in instrument-specific credit risk on market risk benefits, unrealized postretirement benefit obligations liability adjustment, and cross-currency swaps designated as hedges for accounting purposes are reported as separate components of Accumulated other comprehensive income (loss) in Shareholders’ equity in the Consolidated balance sheets.
The following tables present our net realized and unrealized gains (losses):

| Three Months Ended September 30
|  |  |  |  | 2023 |  |  |  |  |  | 2022
|  |  |  |  |  |  | (As Adjusted)
(in millions of U.S. dollars) | Net Realized Gains (Losses) |  | Net Unrealized Gains (Losses) |  | Net Impact |  | Net Realized Gains (Losses) |  | Net Unrealized Gains (Losses) |  | Net Impact
Fixed maturities | $ | (70) |  |  | $ | (2,181) |  |  | $ | (2,251) |  |  | $ | (279) |  |  | $ | (3,045) |  |  | $ | (3,324) |
Fixed income and investment derivatives | 9 |  |  | — |  |  | 9 |  |  | (198) |  |  | — |  |  | (198) |
Public equity |  |  |  |  |  |  |  |  |  |  |
Sales | (45) |  |  | — |  |  | (45) |  |  | (12) |  |  | — |  |  | (12) |
Mark-to-market | (55) |  |  | — |  |  | (55) |  |  | (68) |  |  | — |  |  | (68) |
Private equity (less than 3 percent ownership) |  |  |  |  |  |  |  |  |  |  |
Mark-to-market | 40 |  |  | — |  |  | 40 |  |  | (42) |  |  | — |  |  | (42) |
Total investment portfolio | (121) |  |  | (2,181) |  |  | (2,302) |  |  | (599) |  |  | (3,045) |  |  | (3,644) |
Other derivatives | (7) |  |  | — |  |  | (7) |  |  | (19) |  |  | — |  |  | (19) |
Foreign exchange | (67) |  |  | (317) |  |  | (384) |  |  | 202 |  |  | (942) |  |  | (740) |
Current discount rate on future policy benefits | — |  |  | 683 |  |  | 683 |  |  | — |  |  | 479 |  |  | 479 |
Instrument-specific credit risk on market risk benefits | — |  |  | (5) |  |  | (5) |  |  | — |  |  | 8 |  |  | 8 |
Other (1) | 92 |  |  | 48 |  |  | 140 |  |  | (40) |  |  | (59) |  |  | (99) |
Net (losses), pre-tax | $ | (103) |  |  | $ | (1,772) |  |  | $ | (1,875) |  |  | $ | (456) |  |  | $ | (3,559) |  |  | $ | (4,015) |

(1)The three months ended September 30, 2023 includes a one-time realized gain of $116 million as a result of the consolidation of Huatai Group.
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| Nine Months Ended September 30
|  |  |  |  | 2023 |  |  |  |  |  | 2022
|  |  |  |  |  |  | (As Adjusted)
(in millions of U.S. dollars) | Net Realized Gains (Losses) |  | Net Unrealized Gains (Losses) |  | Net Impact |  | Net Realized Gains (Losses) |  | Net Unrealized Gains (Losses) |  | Net Impact
Fixed maturities | $ | (357) |  |  | $ | (1,589) |  |  | $ | (1,946) |  |  | $ | (857) |  |  | $ | (12,041) |  |  | $ | (12,898) |
Fixed income and investment derivatives | (92) |  |  | — |  |  | (92) |  |  | (232) |  |  | — |  |  | (232) |
Public equity |  |  |  |  |  |  |  |  |  |  |
Sales | (48) |  |  | — |  |  | (48) |  |  | 406 |  |  | — |  |  | 406 |
Mark-to-market | (13) |  |  | — |  |  | (13) |  |  | (693) |  |  | — |  |  | (693) |
Private equity (less than 3 percent ownership) |  |  |  |  |  |  |  |  |  |  |
Mark-to-market | 75 |  |  | — |  |  | 75 |  |  | 17 |  |  | — |  |  | 17 |
Total investment portfolio | (435) |  |  | (1,589) |  |  | (2,024) |  |  | (1,359) |  |  | (12,041) |  |  | (13,400) |
Other derivatives | (6) |  |  | — |  |  | (6) |  |  | (9) |  |  | — |  |  | (9) |
Foreign exchange | (122) |  |  | (279) |  |  | (401) |  |  | 546 |  |  | (1,631) |  |  | (1,085) |
Current discount rate on future policy benefits | — |  |  | 497 |  |  | 497 |  |  | — |  |  | 1,546 |  |  | 1,546 |
Instrument-specific credit risk on market risk benefits | — |  |  | 3 |  |  | 3 |  |  | — |  |  | 48 |  |  | 48 |
Other (1) | 79 |  |  | 63 |  |  | 142 |  |  | (114) |  |  | (35) |  |  | (149) |
Net gains (losses), pre-tax | $ | (484) |  |  | $ | (1,305) |  |  | $ | (1,789) |  |  | $ | (936) |  |  | $ | (12,113) |  |  | $ | (13,049) |

(1)The nine months ended September 30, 2023 Includes a one-time realized gain of $116 million as a result of the consolidation of Huatai Group.
Pre-tax net unrealized losses of $2,181 million and $1,589 million in our investment portfolio for the three and nine months ended September 30, 2023, respectively, were primarily driven by higher interest rates. Refer to Note 3 a) to the Consolidated Financial Statements.
Pre-tax net realized losses of $484 million for the nine months ended September 30, 2023 mainly comprised losses from sales and impairments of fixed maturities and derivative losses, as well as foreign exchange losses.

Effective Income Tax Rate

Our effective tax rate (ETR) reflects a mix of income or losses in jurisdictions with a wide range of tax rates, permanent differences between GAAP and local tax laws, and the impact of discrete items. A change in the geographic mix of earnings could impact our ETR.
For the three and nine months ended September 30, 2023, our ETR was 16.8 percent and 17.2 percent, respectively. This compares to an ETR of 24.9 percent and 18.7 percent for the three and nine months ended September 30, 2022, respectively. The ETR for each period was impacted by our mix of earnings among various jurisdictions, most notably related to realized gains/(losses), the impact of the consolidation of Huatai Group, and an increase in the enacted UK tax rate, offset by discrete tax items.

Non-GAAP Reconciliation

In presenting our results, we included and discussed certain non-GAAP measures. These non-GAAP measures, which may be defined differently by other companies, are important for an understanding of our overall results of operations and financial condition. However, they should not be viewed as a substitute for measures determined in accordance with GAAP.
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We provide financial measures, including net premiums written, net premiums earned, and underwriting income on a constant-dollar basis. We believe it is useful to evaluate the trends in our results exclusive of the effect of fluctuations in exchange rates between the U.S. dollar and the currencies in which our international business is transacted, as these exchange rates could fluctuate significantly between periods and distort the analysis of trends. The impact is determined by assuming constant foreign exchange rates between periods by translating prior period results using the same local currency exchange rates as the comparable current period.
P&C performance metrics comprise consolidated operating results (including Corporate) and exclude the operating results of the Life Insurance segment. We believe that these measures are useful and meaningful to investors as they are used by management to assess the company’s P&C operations which are the most economically similar. We exclude the Life Insurance segment because the results of this business do not always correlate with the results of our P&C operations.
P&C combined ratio is the sum of the loss and loss expense ratio, policy acquisition cost ratio and the administrative expense ratio excluding the life business and including the realized gains and losses on the crop derivatives. These derivatives were purchased to provide economic benefit, in a manner similar to reinsurance protection, in the event that a significant decline in commodity pricing impacts underwriting results. We view gains and losses on these derivatives as part of the results of our underwriting operations.
CAY P&C combined ratio excluding catastrophe losses (CATs) excludes CATs and prior period development (PPD) from the P&C combined ratio. We exclude CATs as they are not predictable as to timing and amount and PPD as these unexpected loss developments on historical reserves are not indicative of our current underwriting performance. The combined ratio numerator is adjusted to exclude CATs, net premiums earned adjustments on PPD, prior period expense adjustments and reinstatement premiums on PPD, and the denomi nator is adjusted to exclude net premiums earned adjustments on PPD and reinstatement premiums on CATs and PPD. In periods where there are adjustments on loss sensitive policies, these adjustments are excluded from PPD and net premiums earned when calculating the ratios. We believe this measure provides a better evaluation of our underwriting performance and enhances the understanding of the trends in our P&C business that may be obscured by these items. This measure is commonly reported among our peer companies and allows for a better comparison.
Reinstatement premiums are additional premiums paid on certain reinsurance agreements in order to reinstate coverage that had been exhausted by loss occurrences. The reinstatement premium amount is typically a pro rata portion of the original ceded premium paid based on how much of the reinsurance limit had been exhausted.
Net premiums earned adjustments within PPD are adjustments to the initial premium earned on retrospectively rated policies based on actual claim experience that develops after the policy period ends. The premium adjustments correlate to the prior period loss development on these same policies and are fully earned in the period the adjustments are recorded.
Prior period expense adjustments typically relate to adjustable commission reserves or policyholder dividend reserves based on actual claim experience that develops after the policy period ends. The expense adjustments correlate to the prior period loss development on these same policies.
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The following tables present the calculation of combined ratio, as reported for each segment to P&C combined ratio, adjusted for CATs and PPD:

|  | North America Commercial P&C Insurance |  | North America Personal P&C Insurance |  | North America Agricultural Insurance |  | Overseas General Insurance |  | Global Reinsurance |  | Corporate |  | Total P&C
Three Months Ended
September 30, 2023
(in millions of U.S. dollars except for ratios)
Numerator |  |  |  |  |  |  |  |  |  |  |  |  |  |
Losses and loss expenses/policy benefits | A | $ | 3,025 |  |  | $ | 900 |  |  | $ | 1,356 |  |  | $ | 1,726 |  |  | $ | 116 |  |  | $ | 61 |  |  | $ | 7,184 |
Catastrophe losses and related adjustments |  |  |  |  |  |  |  |  |  |  |  |  |  |
Catastrophe losses, net of related adjustments |  | (246) |  |  | (280) |  |  | (18) |  |  | (120) |  |  | (6) |  |  | — |  |  | (670) |
Reinstatement premiums collected (expensed) on catastrophe losses |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Catastrophe losses, gross of related adjustments |  | (246) |  |  | (280) |  |  | (18) |  |  | (120) |  |  | (6) |  |  | — |  |  | (670) |
PPD and related adjustments |  |  |  |  |  |  |  |  |  |  |  |  |  |
PPD, net of related adjustments - favorable (unfavorable) |  | 84 |  |  | 119 |  |  | 9 |  |  | 49 |  |  | — |  |  | (61) |  |  | 200 |
Net premiums earned adjustments on PPD - unfavorable (favorable) |  | 66 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 66 |
Expense adjustments - unfavorable (favorable) |  | 7 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 7 |
PPD reinstatement premiums - unfavorable (favorable) |  | — |  |  | (1) |  |  | — |  |  | — |  |  | (1) |  |  | — |  |  | (2) |
PPD, gross of related adjustments - favorable (unfavorable) |  | 157 |  |  | 118 |  |  | 9 |  |  | 49 |  |  | (1) |  |  | (61) |  |  | 271 |
CAY loss and loss expense ex CATs | B | $ | 2,936 |  |  | $ | 738 |  |  | $ | 1,347 |  |  | $ | 1,655 |  |  | $ | 109 |  |  | $ | — |  |  | $ | 6,785 |
Policy acquisition costs and administrative expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |
Policy acquisition costs and administrative expenses | C | $ | 963 |  |  | $ | 371 |  |  | $ | 79 |  |  | $ | 1,154 |  |  | $ | 78 |  |  | $ | 98 |  |  | $ | 2,743 |
Expense adjustments - favorable (unfavorable) |  | (7) |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | (7) |
CAY Policy acquisition costs and administrative expenses, adjusted | D | $ | 956 |  |  | $ | 371 |  |  | $ | 79 |  |  | $ | 1,154 |  |  | $ | 78 |  |  | $ | 98 |  |  | $ | 2,736 |
Denominator |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net premiums earned | E | $ | 4,735 |  |  | $ | 1,407 |  |  | $ | 1,540 |  |  | $ | 3,311 |  |  | $ | 239 |  |  |  |  | $ | 11,232 |
Net premiums earned adjustments on PPD - unfavorable (favorable) |  | 66 |  |  | — |  |  | — |  |  | — |  |  | — |  |  |  |  | 66 |
PPD reinstatement premiums - unfavorable (favorable) |  | — |  |  | (1) |  |  | — |  |  | — |  |  | (1) |  |  |  |  | (2) |
Net premiums earned excluding adjustments | F | $ | 4,801 |  |  | $ | 1,406 |  |  | $ | 1,540 |  |  | $ | 3,311 |  |  | $ | 238 |  |  |  |  | $ | 11,296 |
P&C Combined ratio |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss and loss expense ratio | A/E | 63.9 | % |  | 63.9 | % |  | 88.1 | % |  | 52.1 | % |  | 48.4 | % |  |  |  | 64.0 | %
Policy acquisition cost and administrative expense ratio | C/E | 20.3 | % |  | 26.4 | % |  | 5.1 | % |  | 34.9 | % |  | 32.9 | % |  |  |  | 24.4 | %
P&C Combined ratio |  | 84.2 | % |  | 90.3 | % |  | 93.2 | % |  | 87.0 | % |  | 81.3 | % |  |  |  | 88.4 | %
CAY P&C Combined ratio ex CATs |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss and loss expense ratio, adjusted | B/F | 61.1 | % |  | 52.4 | % |  | 87.5 | % |  | 50.0 | % |  | 45.9 | % |  |  |  | 60.1 | %
Policy acquisition cost and administrative expense ratio, adjusted | D/F | 20.0 | % |  | 26.5 | % |  | 5.2 | % |  | 34.8 | % |  | 32.9 | % |  |  |  | 24.2 | %
CAY P&C Combined ratio ex CATs |  | 81.1 | % |  | 78.9 | % |  | 92.7 | % |  | 84.8 | % |  | 78.8 | % |  |  |  | 84.3 | %
Combined ratio |  |  |  |  |  |  |  |  |  |  |  |  |  |
Combined ratio |  |  |  |  |  |  |  |  |  |  |  |  |  | 88.3 | %
Add: impact of gains and losses on crop derivatives |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.1 | %
P&C Combined ratio |  |  |  |  |  |  |  |  |  |  |  |  |  | 88.4 | %
Note: The ratios above are calculated using whole U.S. dollars. Accordingly, calculations using rounded amounts may differ. Letters A, B, C, D, E, and F included in the table are references for calculating the ratios above.

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|  | North America Commercial P&C Insurance |  | North America Personal P&C Insurance |  | North America Agricultural Insurance |  | Overseas General Insurance |  | Global Reinsurance |  | Corporate |  | Total P&C
Three Months Ended
September 30, 2022
(in millions of U.S. dollars except for ratios)
Numerator |  |  |  |  |  |  |  |  |  |  |  |  |  |
Losses and loss expenses/policy benefits | A | $ | 3,036 |  |  | $ | 857 |  |  | $ | 1,444 |  |  | $ | 1,441 |  |  | $ | 311 |  |  | $ | 74 |  |  | $ | 7,163 |
Catastrophe losses and related adjustments |  |  |  |  |  |  |  |  |  |  |  |  |  |
Catastrophe losses, net of related adjustments |  | (598) |  |  | (274) |  |  | (31) |  |  | (98) |  |  | (157) |  |  | — |  |  | (1,158) |
Reinstatement premiums collected (expensed) on catastrophe losses |  | — |  |  | — |  |  | — |  |  | — |  |  | 55 |  |  | — |  |  | 55 |
Catastrophe losses, gross of related adjustments |  | (598) |  |  | (274) |  |  | (31) |  |  | (98) |  |  | (212) |  |  | — |  |  | (1,213) |
PPD and related adjustments |  |  |  |  |  |  |  |  |  |  |  |  |  |
PPD, net of related adjustments - favorable (unfavorable) |  | 166 |  |  | 133 |  |  | (9) |  |  | 5 |  |  | — |  |  | (73) |  |  | 222 |
Net premiums earned adjustments on PPD - unfavorable (favorable) |  | 80 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 80 |
Expense adjustments - unfavorable (favorable) |  | (1) |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | (1) |
PPD, gross of related adjustments - favorable (unfavorable) |  | 245 |  |  | 133 |  |  | (9) |  |  | 5 |  |  | — |  |  | (73) |  |  | 301 |
CAY loss and loss expense ex CATs | B | $ | 2,683 |  |  | $ | 716 |  |  | $ | 1,404 |  |  | $ | 1,348 |  |  | $ | 99 |  |  | $ | 1 |  |  | $ | 6,251 |
Policy acquisition costs and administrative expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |
Policy acquisition costs and administrative expenses | C | $ | 855 |  |  | $ | 345 |  |  | $ | 71 |  |  | $ | 984 |  |  | $ | 67 |  |  | $ | 91 |  |  | $ | 2,413 |
Expense adjustments - favorable (unfavorable) |  | 1 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 1 |
CAY Policy acquisition costs and administrative expenses, adjusted | D | $ | 856 |  |  | $ | 345 |  |  | $ | 71 |  |  | $ | 984 |  |  | $ | 67 |  |  | $ | 91 |  |  | $ | 2,414 |
Denominator |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net premiums earned | E | $ | 4,283 |  |  | $ | 1,334 |  |  | $ | 1,673 |  |  | $ | 2,741 |  |  | $ | 255 |  |  |  |  | $ | 10,286 |
Reinstatement premiums (collected) expensed on catastrophe losses |  | — |  |  | — |  |  | — |  |  | — |  |  | (55) |  |  |  |  | (55) |
Net premiums earned adjustments on PPD - unfavorable (favorable) |  | 80 |  |  | — |  |  | — |  |  | — |  |  | — |  |  |  |  | 80 |
Net premiums earned excluding adjustments | F | $ | 4,363 |  |  | $ | 1,334 |  |  | $ | 1,673 |  |  | $ | 2,741 |  |  | $ | 200 |  |  |  |  | $ | 10,311 |
P&C Combined ratio |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss and loss expense ratio | A/E | 70.9 | % |  | 64.2 | % |  | 86.3 | % |  | 52.6 | % |  | 122.1 | % |  |  |  | 69.6 | %
Policy acquisition cost and administrative expense ratio | C/E | 20.0 | % |  | 25.9 | % |  | 4.3 | % |  | 35.9 | % |  | 26.3 | % |  |  |  | 23.5 | %
P&C Combined ratio |  | 90.9 | % |  | 90.1 | % |  | 90.6 | % |  | 88.5 | % |  | 148.4 | % |  |  |  | 93.1 | %
CAY P&C Combined ratio ex CATs |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss and loss expense ratio, adjusted | B/F | 61.5 | % |  | 53.6 | % |  | 84.0 | % |  | 49.2 | % |  | 49.6 | % |  |  |  | 60.6 | %
Policy acquisition cost and administrative expense ratio, adjusted | D/F | 19.6 | % |  | 25.9 | % |  | 4.2 | % |  | 35.9 | % |  | 33.4 | % |  |  |  | 23.4 | %
CAY P&C Combined ratio ex CATs |  | 81.1 | % |  | 79.5 | % |  | 88.2 | % |  | 85.1 | % |  | 83.0 | % |  |  |  | 84.0 | %
Combined ratio |  |  |  |  |  |  |  |  |  |  |  |  |  |
Combined ratio |  |  |  |  |  |  |  |  |  |  |  |  |  | 92.9 | %
Add: impact of gains and losses on crop derivatives |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.2 | %
P&C Combined ratio |  |  |  |  |  |  |  |  |  |  |  |  |  | 93.1 | %
Note: The ratios above are calculated using whole U.S. dollars. Accordingly, calculations using rounded amounts may differ. Letters A, B, C, D, E, and F included in the table are references for calculating the ratios above.

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|  | North America Commercial P&C Insurance |  | North America Personal P&C Insurance |  | North America Agricultural Insurance |  | Overseas General Insurance |  | Global Reinsurance |  | Corporate |  | Total P&C
Nine Months Ended
September 30, 2023
(in millions of U.S. dollars except for ratios)
Numerator |  |  |  |  |  |  |  |  |  |  |  |  |  |
Losses and loss expenses/policy benefits | A | $ | 8,625 |  |  | $ | 2,634 |  |  | $ | 2,003 |  |  | $ | 4,477 |  |  | $ | 319 |  |  | $ | 133 |  |  | $ | 18,191 |
Catastrophe losses and related adjustments |  |  |  |  |  |  |  |  |  |  |  |  |  |
Catastrophe losses, net of related adjustments |  | (639) |  |  | (586) |  |  | (37) |  |  | (259) |  |  | (7) |  |  | — |  |  | (1,528) |
Reinstatement premiums collected (expensed) on catastrophe losses |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Catastrophe losses, gross of related adjustments |  | (639) |  |  | (586) |  |  | (37) |  |  | (259) |  |  | (7) |  |  | — |  |  | (1,528) |
PPD and related adjustments |  |  |  |  |  |  |  |  |  |  |  |  |  |
PPD, net of related adjustments - favorable (unfavorable) |  | 302 |  |  | 135 |  |  | 12 |  |  | 253 |  |  | 25 |  |  | (131) |  |  | 596 |
Net premiums earned adjustments on PPD - unfavorable (favorable) |  | 78 |  |  | — |  |  | (2) |  |  | — |  |  | — |  |  | — |  |  | 76 |
Expense adjustments - unfavorable (favorable) |  | 14 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 14 |
PPD reinstatement premiums - unfavorable (favorable) |  | — |  |  | (2) |  |  | — |  |  | — |  |  | 5 |  |  | — |  |  | 3 |
PPD, gross of related adjustments - favorable (unfavorable) |  | 394 |  |  | 133 |  |  | 10 |  |  | 253 |  |  | 30 |  |  | (131) |  |  | 689 |
CAY loss and loss expense ex CATs | B | $ | 8,380 |  |  | $ | 2,181 |  |  | $ | 1,976 |  |  | $ | 4,471 |  |  | $ | 342 |  |  | $ | 2 |  |  | $ | 17,352 |
Policy acquisition costs and administrative expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |
Policy acquisition costs and administrative expenses | C | 2,801 |  |  | 1,083 |  |  | 137 |  |  | 3,185 |  |  | 223 |  |  | 290 |  |  | 7,719 |
Expense adjustments - favorable (unfavorable) |  | (14) |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | (14) |
CAY Policy acquisition costs and administrative expenses, adjusted | D | $ | 2,787 |  |  | $ | 1,083 |  |  | $ | 137 |  |  | $ | 3,185 |  |  | $ | 223 |  |  | $ | 290 |  |  | $ | 7,705 |
Denominator |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net premiums earned | E | $ | 13,710 |  |  | $ | 4,084 |  |  | $ | 2,334 |  |  | $ | 9,005 |  |  | $ | 720 |  |  |  |  | $ | 29,853 |
Net premiums earned adjustments on PPD - unfavorable (favorable) |  | 78 |  |  | — |  |  | (2) |  |  | — |  |  | — |  |  |  |  | 76 |
PPD reinstatement premiums - unfavorable (favorable) |  | — |  |  | (2) |  |  | — |  |  | — |  |  | 5 |  |  |  |  | 3 |
Net premiums earned excluding adjustments | F | $ | 13,788 |  |  | $ | 4,082 |  |  | $ | 2,332 |  |  | $ | 9,005 |  |  | $ | 725 |  |  |  |  | $ | 29,932 |
P&C Combined ratio |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss and loss expense ratio | A/E | 62.9 | % |  | 64.5 | % |  | 85.8 | % |  | 49.7 | % |  | 44.3 | % |  |  |  | 60.9 | %
Policy acquisition cost and administrative expense ratio | C/E | 20.4 | % |  | 26.5 | % |  | 5.9 | % |  | 35.4 | % |  | 31.0 | % |  |  |  | 25.9 | %
P&C Combined ratio |  | 83.3 | % |  | 91.0 | % |  | 91.7 | % |  | 85.1 | % |  | 75.3 | % |  |  |  | 86.8 | %
CAY P&C Combined ratio ex CATs |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss and loss expense ratio, adjusted | B/F | 60.8 | % |  | 53.4 | % |  | 84.7 | % |  | 49.7 | % |  | 47.2 | % |  |  |  | 58.0 | %
Policy acquisition cost and administrative expense ratio, adjusted | D/F | 20.2 | % |  | 26.6 | % |  | 5.9 | % |  | 35.3 | % |  | 30.8 | % |  |  |  | 25.7 | %
CAY P&C Combined ratio ex CATs |  | 81.0 | % |  | 80.0 | % |  | 90.6 | % |  | 85.0 | % |  | 78.0 | % |  |  |  | 83.7 | %
Combined ratio |  |  |  |  |  |  |  |  |  |  |  |  |  |
Combined ratio |  |  |  |  |  |  |  |  |  |  |  |  |  | 86.8 | %
Add: impact of gains and losses on crop derivatives |  |  |  |  |  |  |  |  |  |  |  |  |  | — |
P&C Combined ratio |  |  |  |  |  |  |  |  |  |  |  |  |  | 86.8 | %
Note: The ratios above are calculated using whole U.S. dollars. Accordingly, calculations using rounded amounts may differ. Letters A, B, C, D, E, and F included in the table are references for calculating the ratios above.

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|  | North America Commercial P&C Insurance |  | North America Personal P&C Insurance |  | North America Agricultural Insurance |  | Overseas General Insurance |  | Global Reinsurance |  | Corporate |  | Total P&C
Nine Months Ended
September 30, 2022
(in millions of U.S. dollars except for ratios)
Numerator |  |  |  |  |  |  |  |  |  |  |  |  |  |
Losses and loss expenses/policy benefits | A | $ | 7,979 |  |  | $ | 2,343 |  |  | $ | 1,830 |  |  | $ | 4,054 |  |  | $ | 565 |  |  | $ | 275 |  |  | $ | 17,046 |
Catastrophe losses and related adjustments |  |  |  |  |  |  |  |  |  |  |  |  |  |
Catastrophe losses, net of related adjustments |  | (803) |  |  | (469) |  |  | (52) |  |  | (298) |  |  | (160) |  |  | — |  |  | (1,782) |
Reinstatement premiums collected (expensed) on catastrophe losses |  | — |  |  | — |  |  | — |  |  | — |  |  | 55 |  |  | — |  |  | 55 |
Catastrophe losses, gross of related adjustments |  | (803) |  |  | (469) |  |  | (52) |  |  | (298) |  |  | (215) |  |  | — |  |  | (1,837) |
PPD and related adjustments |  |  |  |  |  |  |  |  |  |  |  |  |  |
PPD, net of related adjustments - favorable (unfavorable) |  | 561 |  |  | 187 |  |  | 17 |  |  | 238 |  |  | (22) |  |  | (272) |  |  | 709 |
Net premiums earned adjustments on PPD - unfavorable (favorable) |  | 83 |  |  | — |  |  | 159 |  |  | — |  |  | — |  |  | — |  |  | 242 |
Expense adjustments - unfavorable (favorable) |  | 4 |  |  | — |  |  | (1) |  |  | — |  |  | — |  |  | — |  |  | 3 |
PPD reinstatement premiums - unfavorable (favorable) |  | — |  |  | — |  |  | — |  |  | — |  |  | (2) |  |  | — |  |  | (2) |
PPD, gross of related adjustments - favorable (unfavorable) |  | 648 |  |  | 187 |  |  | 175 |  |  | 238 |  |  | (24) |  |  | (272) |  |  | 952 |
CAY loss and loss expense ex CATs | B | $ | 7,824 |  |  | $ | 2,061 |  |  | $ | 1,953 |  |  | $ | 3,994 |  |  | $ | 326 |  |  | $ | 3 |  |  | $ | 16,161 |
Policy acquisition costs and administrative expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |
Policy acquisition costs and administrative expenses | C | $ | 2,515 |  |  | $ | 1,005 |  |  | $ | 115 |  |  | $ | 2,907 |  |  | $ | 205 |  |  | $ | 264 |  |  | $ | 7,011 |
Expense adjustments - favorable (unfavorable) |  | (4) |  |  | — |  |  | 1 |  |  | — |  |  | — |  |  | — |  |  | (3) |
CAY Policy acquisition costs and administrative expenses, adjusted | D | $ | 2,511 |  |  | $ | 1,005 |  |  | $ | 116 |  |  | $ | 2,907 |  |  | $ | 205 |  |  | $ | 264 |  |  | $ | 7,008 |
Denominator |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net premiums earned | E | $ | 12,645 |  |  | $ | 3,852 |  |  | $ | 2,217 |  |  | $ | 8,065 |  |  | $ | 712 |  |  |  |  | $ | 27,491 |
Reinstatement premiums (collected) expensed on catastrophe losses |  | — |  |  | — |  |  | — |  |  | — |  |  | (55) |  |  |  |  | (55) |
Net premiums earned adjustments on PPD - unfavorable (favorable) |  | 83 |  |  | — |  |  | 159 |  |  | — |  |  | — |  |  |  |  | 242 |
PPD reinstatement premiums - unfavorable (favorable) |  | — |  |  | — |  |  | — |  |  | — |  |  | (2) |  |  |  |  | (2) |
Net premiums earned excluding adjustments | F | $ | 12,728 |  |  | $ | 3,852 |  |  | $ | 2,376 |  |  | $ | 8,065 |  |  | $ | 655 |  |  |  |  | $ | 27,676 |
P&C Combined ratio |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss and loss expense ratio | A/E | 63.1 | % |  | 60.8 | % |  | 82.5 | % |  | 50.3 | % |  | 79.4 | % |  |  |  | 62.0 | %
Policy acquisition cost and administrative expense ratio | C/E | 19.9 | % |  | 26.1 | % |  | 5.3 | % |  | 36.0 | % |  | 28.8 | % |  |  |  | 25.5 | %
P&C Combined ratio |  | 83.0 | % |  | 86.9 | % |  | 87.8 | % |  | 86.3 | % |  | 108.2 | % |  |  |  | 87.5 | %
CAY P&C Combined ratio ex CATs |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss and loss expense ratio, adjusted | B/F | 61.5 | % |  | 53.5 | % |  | 82.2 | % |  | 49.5 | % |  | 49.8 | % |  |  |  | 58.4 | %
Policy acquisition cost and administrative expense ratio, adjusted | D/F | 19.7 | % |  | 26.1 | % |  | 4.9 | % |  | 36.1 | % |  | 31.2 | % |  |  |  | 25.3 | %
CAY P&C Combined ratio ex CATs |  | 81.2 | % |  | 79.6 | % |  | 87.1 | % |  | 85.6 | % |  | 81.0 | % |  |  |  | 83.7 | %
Combined ratio |  |  |  |  |  |  |  |  |  |  |  |  |  |
Combined ratio |  |  |  |  |  |  |  |  |  |  |  |  |  | 87.5 | %
Add: impact of gains and losses on crop derivatives |  |  |  |  |  |  |  |  |  |  |  |  |  | — |
P&C Combined ratio |  |  |  |  |  |  |  |  |  |  |  |  |  | 87.5 | %
Note: The ratios above are calculated using whole U.S. dollars. Accordingly, calculations using rounded amounts may differ. Letters A, B, C, D, E, and F included in the table are references for calculating the ratios above.

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Amortization of Purchased Intangibles and Other Amortization

Amortization of purchased intangibles
Amortization expense related to purchased intangibles was $84 million and $226 million for the three and nine months ended September 30, 2023, respectively, compared with $69 million and $211 million for the prior year periods, respectively.
At September 30, 2023, the deferred tax liability associated with the Other intangible assets (excluding the fair value adjustment on Unpaid losses and loss expenses) was $1,577 million.
Refer to Note 7 to the Consolidated Financial Statements for the expected pre-tax amortization expense of purchased intangibles, which are presented gross of noncontrolling interests.
The following table presents, as of September 30, 2023, the expected reduction to the deferred tax liability associated with the amortization of Other intangible assets, at current foreign currency exchange rates, for the fourth quarter of 2023 and for the next five years:

For the Years Ending December 31 (in millions of U.S. dollars) | Reduction to deferred tax liability associated with intangible assets |  |
Fourth quarter of 2023 | $ | 24 |  |  |
2024 | 82 |  |  |
2025 | 73 |  |  |
2026 | 68 |  |  |
2027 | 63 |  |  |
2028 | 60 |  |  |
Total | $ | 370 |  |  |

Amortization of the fair value adjustment on acquired invested assets and assumed long-term debt
The following table presents, as of September 30, 2023, the expected amortization expense of the fair value adjustment on acquired invested assets related to the acquisitions of Huatai Group, Cigna's business in Asia and Chubb Corp, at current foreign currency exchange rates, and the expected amortization benefit from the fair value adjustment on assumed long-term debt related to the Chubb Corp acquisition for the fourth quarter of 2023 and for the next five years:

|  |  |  | Amortization (expense) benefit of the fair value adjustment on
For the Years Ending December 31 (in millions of U.S. dollars) |  |  |  |  | Total acquired invested assets (1) |  | Assumed long-term debt (2)
Fourth quarter of 2023 |  |  |  |  | $ | (8) |  |  | $ | 6 |
2024 |  |  |  |  | (29) |  |  | 21 |
2025 |  |  |  |  | (13) |  |  | 21 |
2026 |  |  |  |  | 2 |  |  | 21 |
2027 |  |  |  |  | 4 |  |  | 21 |
2028 |  |  |  |  | 6 |  |  | 21 |
Total |  |  |  |  | $ | (38) |  |  | $ | 111 |

(1)Recorded as an increase (reduction) to Net investment income in the Consolidated statements of operations.
(2)Recorded as a reduction to Interest expense in the Consolidated statements of operations.
The estimate of amortization expense of the fair value adjustment on acquired invested assets could vary based on current market conditions, bond calls, overall duration of the acquired investment portfolio, and foreign exchange.
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Net Investment Income

| Three Months Ended September 30 | Nine Months Ended September 30 |
(in millions of U.S. dollars) | 2023 |  | 2022 | 2023 |  | 2022 |  |  |
Fixed maturities (1) | $ | 1,198 |  | $ | 932 | $ | 3,355 |  | $ | 2,584 |  |  |
Short-term investments | 60 |  | 25 | 147 |  | 49 |  |  |
Other interest income | 17 |  | 14 | 46 |  | 21 |  |  |
Equity securities | 53 |  | 21 | 68 |  | 93 |  |  |
Private equities | 18 |  | 24 | 38 |  | 50 |  |  |
Other investments | 16 |  | 8 | 54 |  | 28 |  |  |
Gross investment income (1) | 1,362 |  | 1,024 | 3,708 |  | 2,825 |  |  |
Investment expenses | (48) |  | (45) | (142) |  | (136) |  |  |
Net investment income (1) | $ | 1,314 |  | $ | 979 | $ | 3,566 |  | $ | 2,689 |  |  |
(1) Includes amortization expense related to fair value adjustment of acquired invested assets | $ | (9) |  | $ | (6) | $ | (14) |  | $ | (36) |  |  |

Net investment income is influenced by a number of factors including the amounts and timing of inward and outward cash flows, the level of interest rates, and changes in overall asset allocation. Net investment income increased 34.2 percent and 32.6 percent for the three and nine months ended September 30, 2023, respectively, primarily due to higher reinvestment rates on fixed maturities and the consolidation of Huatai group.
For private equities where we own less than three percent, investment income is included within Net investment income in the table above. For private equities where we own more than three percent, investment income is included within Other (income) expense in the Consolidated statements of operations. Excluded from Net investment income is the mark-to-market movement for private equities, which is recorded within either Other (income) expense or Net realized gains (losses) based on our percentage of ownership. The total mark-to-market movement for private equities excluded from Net investment income was as follows:

| Three Months Ended September 30 | Nine Months Ended September 30 |
(in millions of U.S. dollars) | 2023 |  | 2022 | 2023 |  | 2022 |  |  |
Total mark-to-market gain (loss) on private equity, pre-tax | $ | 90 |  |  | $ | (232) |  | $ | 364 |  |  | $ | (52) |  |  |  |

Investments

Our investment portfolio is invested primarily in publicly traded, investment grade, fixed income securities with an average credit quality of A/A as rated by the independent investment rating services Standard and Poor’s (S&P)/Moody’s Investors Service (Moody’s) at September 30, 2023. The portfolio is externally managed by independent, professional investment managers and is broadly diversified across geographies, sectors, and issuers. Huatai's portfolio is predominantly managed internally by Huatai’s asset management companies. Private equities principally comprises investment funds and limited partnerships. We hold no collateralized debt obligations in our investment portfolio, and we provide no credit default protection. We have long-standing global credit limits for our entire portfolio across the organization. Exposures are aggregated, monitored, and actively managed by our Global Credit Committee, comprising senior executives, including our Chief Financial Officer, our Chief Risk Officer, our Chief Investment Officer, and our Treasurer. We also have well-established, strict contractual investment rules requiring managers to maintain highly diversified exposures to individual issuers and clos ely monitor investment manager compliance with portfolio guidelines.
The average duration of our fixed income securities was 4.7 years, which excludes Huatai, and 4.5 years at September 30, 2023, and December 31, 2022, respectively. We exclude Huatai in order to make comparison to prior period meaningful. We estimate that a 100 basis point (bps) increase in interest rates would reduce the valuation of our fixed income portfolio by approximately $5 billion at September 30, 2023. The following table shows the fair value and cost/amortized cost, net of valuation allowance, of our invested assets:
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| September 30, 2023 |  | December 31, 2022
(in millions of U.S. dollars) | Fair Value |  | Cost/ Amortized Cost, Net |  | Fair Value |  | Cost/ Amortized Cost, Net
Short-term investments | $ | 5,454 |  |  | $ | 5,455 |  |  | $ | 4,960 |  |  | $ | 4,962 |
Fixed maturities available for sale | 99,766 |  |  | 109,197 |  |  | 85,220 |  |  | 93,186 |
Fixed maturities held to maturity | — |  |  | — |  |  | 8,439 |  |  | 8,848 |
Fixed income securities | 105,220 |  |  | 114,652 |  |  | 98,619 |  |  | 106,996 |
Equity securities | 3,395 |  |  | 3,395 |  |  | 827 |  |  | 827 |
Private debt held-for-investment | 2,389 |  |  | 2,401 |  |  | — |  |  | — |
Private equities | 13,362 |  |  | 13,362 |  |  | 12,355 |  |  | 12,355 |
Other investments | 5,583 |  |  | 5,583 |  |  | 1,341 |  |  | 1,341 |
Total investments | $ | 129,949 |  |  | $ | 139,393 |  |  | $ | 113,142 |  |  | $ | 121,519 |

The fair value of our total investments increased $16.8 billion during the nine months ended September 30, 2023, primarily due to the consolidation of Huatai, which added $12.7 billion, and investing of operating cash flow, partially offset by unrealized losses, share repurchases, and dividend payments.
On July 1, 2023, our ownership interest in Huatai increased to 69.6 percent and Huatai became a consolidated subsidiary of Chubb. Consolidation accounting requires including 100 percent of Huatai’s results of operations and financial position within our Consolidated financial statements. Therefore, at September 30, 2023, total investments included $12.7 billion related to Huatai's investment portfolio, of which $6.5 billion is economically owned by Chubb and $6.2 billion attributable to noncontrolling interests. The noncontrolling interests comprises both the portion that we do not own of Huatai based on our current ownership percentage, as well as the required consolidation of VIEs where we are the primary beneficiary, which is generally if we hold an economic interest of 10 percent or more. These VIEs are related to sponsored investment products, principally mutual funds, that are created and managed by Huatai’s asset management companies. These VIEs totaled $5.4 billion related to investments, of which our economic interest is $1.6 billion, with the remainder related to investors other than Chubb which are reported under Noncontrolling interests. Refer to Note 3 g) in the Consolidated Financial Statements for further detail on VIEs.
The following table presents the investments included in our Consolidated balance sheet relating to Huatai's investment portfolio at September 30, 2023, which are presented gross of noncontrolling interests required by consolidation accounting. Also provided below is the portion of Huatai’s investments that is owned by Chubb based on our ownership interest (shown below as attributable to Chubb) as a gauge to measure Chubb’s net economic investment exposure:

| September 30, 2023
(in millions of U.S. dollars) | Consolidated |  | Noncontrolling Interests |  | Attributable to Chubb
Short-term investments | $ | 1,015 |  |  | $ | 491 |  |  | $ | 524 |
Fixed maturities available for sale | 2,748 |  |  | 696 |  |  | 2,052 |
Private debt held-for-investment | 2,401 |  |  | 656 |  |  | 1,745 |
Equity securities | 2,286 |  |  | 1,329 |  |  | 957 |
Private equities | 33 |  |  | 15 |  |  | 18 |
Other investments | 4,187 |  |  | 3,031 |  |  | 1,156 |
Total | $ | 12,670 |  |  | $ | 6,218 |  |  | $ | 6,452 |

Huatai’s investment portfolio comprised investments of predominantly investment grade fixed maturities, private debt, and mutual funds that hold principally fixed income securities. Private debt are investments with stated interest rates and maturity dates with fixed or determinable payments. Mutual funds, for which a Huatai entity holds an economic interest of less than 10 percent, are recorded within equities securities on the Consolidated balance sheets and comprised principally of holdings in
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fixed maturities. Other investments principally comprised fixed income securities that are managed by Huatai’s asset management companies and are carried at fair value with changes in fair value recorded through the Consolidated statements of operations. The average credit quality of Huatai’s fixed income portfolio is rated A.
The following tables present the fair value of our fixed income securities at September 30, 2023, and December 31, 2022. The first table lists investments according to type and second according to S&P credit rating:

| September 30, 2023 |  | December 31, 2022
(in millions of U.S. dollars, except for percentages) | Fair Value |  | % of Total |  | Fair Value |  | % of Total
U.S. Treasury / Agency | $ | 3,681 |  |  | 3 | % |  | $ | 3,996 |  |  | 4 | %
Corporate and asset-backed securities | 40,855 |  |  | 37 | % |  | 38,535 |  |  | 40 | %
Mortgage-backed securities | 19,605 |  |  | 18 | % |  | 17,202 |  |  | 17 | %
Municipal | 2,908 |  |  | 3 | % |  | 6,964 |  |  | 7 | %
Non-U.S. | 36,654 |  |  | 34 | % |  | 26,962 |  |  | 27 | %
Short-term investments | 5,454 |  |  | 5 | % |  | 4,960 |  |  | 5 | %
Total | $ | 109,157 |  |  | 100 | % |  | $ | 98,619 |  |  | 100 | %
AAA | $ | 13,567 |  |  | 12 | % |  | $ | 14,779 |  |  | 15 | %
AA | 31,204 |  |  | 29 | % |  | 31,195 |  |  | 32 | %
A | 26,567 |  |  | 24 | % |  | 18,366 |  |  | 19 | %
BBB | 19,102 |  |  | 18 | % |  | 16,802 |  |  | 17 | %
BB | 9,880 |  |  | 9 | % |  | 8,722 |  |  | 9 | %
B | 8,306 |  |  | 8 | % |  | 8,347 |  |  | 8 | %
Other | 531 |  |  | — | % |  | 408 |  |  | — | %
Total | $ | 109,157 |  |  | 100 | % |  | $ | 98,619 |  |  | 100 | %

Corporate and asset-backed securities
The following table presents our 10 largest global exposures to corporate bonds by fair value at September 30, 2023:

(in millions of U.S. dollars) | Fair Value
Bank of America Corp | $ | 739 |
Morgan Stanley | 651 |
JP Morgan Chase & Co | 647 |
Wells Fargo & Co | 572 |
Citigroup Inc | 505 |
Goldman Sachs Group Inc | 505 |
UBS Group AG | 391 |
HSBC Holdings Plc | 377 |
Verizon Communications Inc | 360 |
Comcast Corp | 352 |

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Mortgage-backed securities
The following table shows the fair value and amortized cost, net of valuation allowance, of our mortgage-backed securities:

| S&P Credit Rating |  | Fair Value |  | Amortized Cost, Net
September 30, 2023 (in millions of U.S. dollars) | AAA |  | AA |  | A |  | BBB |  | BB and below |  | Total |  | Total
Agency residential mortgage-backed securities (RMBS) | $ | 9 |  |  | $ | 16,587 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 16,596 |  |  | $ | 19,064 |
Non-agency RMBS | 729 |  |  | 53 |  |  | 45 |  |  | 32 |  |  | 7 |  |  | 866 |  |  | 965 |
Commercial mortgage-backed securities | 1,854 |  |  | 162 |  |  | 116 |  |  | 9 |  |  | 2 |  |  | 2,143 |  |  | 2,372 |
Total mortgage-backed securities | $ | 2,592 |  |  | $ | 16,802 |  |  | $ | 161 |  |  | $ | 41 |  |  | $ | 9 |  |  | $ | 19,605 |  |  | $ | 22,401 |

Municipal
As part of our overall investment strategy, we may invest in states, municipalities, and other political subdivisions fixed maturity securities (Municipal). We apply the same investment selection process described previously to our Municipal investments. The portfolio is highly diversified primarily in state general obligation bonds and essential service revenue bonds including education and utilities (water, power, and sewers).
Non-U.S.
Our exposure to the euro results primarily from Chubb European Group SE which is headquartered in France and offers a broad range of coverages throughout the European Union, Central, and Eastern Europe. Chubb primarily invests in Euro denominated investments to support its local currency insurance obligations and required capital levels. Chubb’s local currency investment portfolios have strict contractual investment guidelines requiring managers to maintain a high quality and diversified portfolio to both sector and individual issuers. Investment portfolios are monitored daily to ensure investment manager compliance with portfolio guidelines.
Our non-U.S. investment grade fixed income portfolios are currency-matched with the insurance liabilities of our non-U.S. operations. The average credit quality of our non-U.S. fixed income securities is A and 38 percent of our holdings are rated AAA or guaranteed by governments or quasi-government agencies. Within the context of these investment portfolios, our government and corporate bond holdings are highly diversified across industries and geographies. Issuer limits are based on credit rating (AA—two percent, A—one percent, BBB—0.5 percent of the total portfolio) and are monitored daily via an internal compliance system. We manage our indirect exposure using the same credit rating based investment approach. Accordingly, we do not believe our indirect exposure is material.
The following table summarizes the fair value and amortized cost, net of valuation allowance, of our non-U.S. fixed income portfolio by country/sovereign for non-U.S. government securities at September 30, 2023:

(in millions of U.S. dollars) | Fair Value |  | Amortized Cost, Net
Republic of Korea | $ | 1,617 |  |  | $ | 1,701 |
People's Republic of China | 1,345 |  |  | 1,340 |
Taiwan | 955 |  |  | 923 |
Canada | 883 |  |  | 969 |
Federative Republic of Brazil | 663 |  |  | 669 |
United Mexican States | 592 |  |  | 629 |
Province of Ontario | 534 |  |  | 587 |
Kingdom of Thailand | 525 |  |  | 528 |
Socialist Republic of Vietnam | 482 |  |  | 364 |
Commonwealth of Australia | 439 |  |  | 526 |
Other Non-U.S. Government Securities | 5,408 |  |  | 5,946 |
Total | $ | 13,443 |  |  | $ | 14,182 |

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The following table summarizes the fair value and amortized cost, net of valuation allowance, of our non-U.S. fixed income portfolio by country/sovereign for non-U.S. corporate securities at September 30, 2023:

(in millions of U.S. dollars) | Fair Value |  | Amortized Cost, Net
China | $ | 5,761 |  |  | $ | 5,802 |
United Kingdom | 2,536 |  |  | 2,764 |
Canada | 1,941 |  |  | 2,079 |
South Korea | 1,422 |  |  | 1,475 |
United States (1) | 1,380 |  |  | 1,482 |
France | 1,378 |  |  | 1,477 |
Australia | 1,035 |  |  | 1,125 |
Japan | 759 |  |  | 819 |
Germany | 575 |  |  | 631 |
Netherlands | 563 |  |  | 613 |
Other Non-U.S. Corporate Securities | 5,861 |  |  | 6,347 |
Total | $ | 23,211 |  |  | $ | 24,614 |

(1) The countries that are listed in the non-U.S. corporate fixed income portfolio above represent the ultimate parent company's country of risk. Non-U.S. corporate securities could be issued by foreign subsidiaries of U.S. corporations.
The tables above include Huatai invested assets which are required to be reported at 100 percent within our Consolidated balance sheets. However, our economic exposure is limited to our ownership interest.
Below-investment grade corporate fixed income portfolio
Below-investment grade securities have different characteristics than investment grade corporate debt securities. Risk of loss from default by the borrower is greater with below-investment grade securities. Below-investment grade securities are generally unsecured and are often subordinated to other creditors of the issuer. Also, issuers of below-investment grade securities usually have higher levels of debt and are more sensitive to adverse economic conditions, such as recession or increasing interest rates, than investment grade issuers. At September 30, 2023, our corporate fixed income investment portfolio included below-investment grade and non-rated securities which, in total, comprised approximately 15 percent of our fixed income portfolio. Our below-investment grade and non-rated portfolio includes over 1,720 issuers, with the greatest single exposure being $154 million.
We manage high-yield bonds as a distinct and separate asset class from investment grade bonds. The allocation to high-yield bonds is explicitly set by internal management and is targeted to securities in the upper tier of credit quality (BB/B). Our minimum rating for initial purchase is BB/B. Sixteen external investment managers are responsible for high-yield security selection and portfolio construction. Our high-yield managers have a conservative approach to credit selection and very low historical default experience. Holdings are highly diversified across industries and generally subject to a 1.5 percent issuer limit as a percentage of high-yield allocation. We monitor position limits daily through an internal compliance system. Derivative and structured securities (e.g., credit default swaps and collateralized debt obligations) are not permitted in the high-yield portfolio.
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Critical Accounting Estimates

Unpaid losses and loss expenses
As an insurance and reinsurance company, we are required by applicable laws and regulations and GAAP to establish loss and loss expense reserves for the estimated unpaid portion of the ultimate liability for losses and loss expenses under the terms of our policies and agreements with our insured and reinsured customers. With the exception of certain structured settlements, for which the timing and amount of future claim payments are reliably determinable, and certain reserves for unsettled claims, our loss reserves are not discounted for the time value of money.
The following table presents a roll-forward of our unpaid losses and loss expenses:

(in millions of U.S. dollars) | Gross Losses |  | Reinsurance Recoverable (1) |  | Net Losses
Balance at December 31, 2022 | $ | 75,747 |  |  | $ | 17,086 |  |  | $ | 58,661 |
Losses and loss expenses incurred | 23,189 |  |  | 5,252 |  |  | 17,937 |
Losses and loss expenses paid | (19,831) |  |  | (4,820) |  |  | (15,011) |
Other (including foreign exchange translation) | 600 |  |  | 290 |  |  | 310 |
Balance at September 30, 2023 | $ | 79,705 |  |  | $ | 17,808 |  |  | $ | 61,897 |

(1)Net of valuation allowance for uncollectible reinsurance.
The estimate of the liabilities includes provisions for claims that have been reported but are unpaid at the balance sheet date (case reserves) and for obligations on claims that have been incurred but not reported (IBNR) at the balance sheet date. IBNR may also include provisions to account for the possibility that reported claims may settle for amounts that differ from the established case reserves. Loss reserves also include an estimate of expenses associated with processing and settling unpaid claims (loss expenses).
Refer to Note 8 to the Consolidated Financial Statements for a discussion on the changes in the loss reserves.
Future policy benefits
Effective January 1, 2023, Chubb adopted the long-duration targeted improvement (LDTI) U.S. GAAP accounting guidance which affects the recognition, measurement, presentation, and disclosure requirements for long-duration contracts. For a discussion of our critical accounting estimates, refer to Item 7 in our 2022 Form 10-K.
Asbestos and Environmental (A&E)
During the three months and nine months ended September 30, 2023, we increased environmental net loss reserves for Brandywine managed operations by $50 million. A&E reserves are included in Corporate. Refer to our 2022 Form 10-K for further information on our A&E exposures.
Fair value measurements
Accounting guidance defines fair value as the price to sell an asset or transfer a liability (an exit price) in an orderly transaction between market participants and establishes a three-level valuation hierarchy based on the reliability of the inputs. The fair value hierarchy gives the highest priority to quoted prices in active markets (Level 1 inputs) and the lowest priority to unobservable data (Level 3 inputs). Level 2 includes inputs, other than quoted prices within Level 1, that are observable for assets or liabilities either directly or indirectly. Refer to Note 4 to the Consolidated Financial Statements for information on our fair value measurements.
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Catastrophe Management

We actively monitor and manage our catastrophe risk accumulation around the world from natural perils, including setting risk limits based on probable maximum loss (PML) and purchasing catastrophe reinsurance, to ensure sufficient liquidity and capital to meet the expectations of regulators, rating agencies, and policyholders, and to provide shareholders with an appropriate risk-adjusted return. Chubb uses internal and external data together with sophisticated, analytical catastrophe loss and risk modeling techniques to ensure an appropriate understanding of risk, including diversification and correlation effects, across different product lines and territories. The table below presents our modeled pre-tax estimates of natural catastrophe PML, net of reinsurance, at September 30, 2023, and does not represent our expected catastrophe losses for any one year.

| Modeled Net Probable Maximum Loss (PML) Pre-tax
| Worldwide (1) |  | U.S. Hurricane (2) |  | California Earthquake (3)
| Annual Aggregate |  | Annual Aggregate |  | Single Occurrence
(in millions of U.S. dollars, except for percentages) | Chubb |  | % of Total Chubb Shareholders’ Equity |  | Chubb |  | % of Total Chubb Shareholders’ Equity |  | Chubb |  | % of Total Chubb Shareholders’ Equity
1-in-10 | $ | 2,327 |  |  | 4.4 | % |  | $ | 1,182 |  |  | 2.3 | % |  | $ | 147 |  |  | 0.3 | %
1-in-100 | $ | 5,082 |  |  | 9.7 | % |  | $ | 3,238 |  |  | 6.2 | % |  | $ | 1,424 |  |  | 2.7 | %
1-in-250 | $ | 8,489 |  |  | 16.2 | % |  | $ | 6,237 |  |  | 11.9 | % |  | $ | 1,685 |  |  | 3.2 | %

(1) Worldwide aggregate is comprised of losses arising from tropical cyclones, convective storms, earthquakes, U.S. wildfires, and floods in the U.S., Canada, and Europe, and excludes "non-modeled" perils such as man-made and other catastrophe risks including pandemic.
(2) U.S. hurricane losses include losses from wind, storm-surge, and related precipitation-induced flooding.
(3) California earthquakes include the fire-following sub-peril.
The PML for worldwide and key U.S. peril regions are based on our in-force portfolio at July 1, 2023, and reflect the September 1, 2023, reinsurance program, as well as inuring reinsurance protection coverage. This includes a $500 million excess of loss program for named windstorms and earthquakes within Northeast states, purchased and effective September 1, 2023. Refer to the Global Property Catastrophe Reinsurance section for more information. These estimates assume that reinsurance recoverable is fully collectible.
According to the model, for the 1-in-100 return period scenario, there is a one percent chance that our pre-tax annual aggregate losses incurred in any year from U.S. hurricane events could be in excess of $3,238 million (or 6.2 percent of total Chubb shareholders’ equity at September 30, 2023). Effective December 31, 2022, our worldwide PMLs include losses from floods in Canada and Europe. Additionally, U.S. hurricane PMLs include losses from hurricane related precipitation-induced flooding.
The above estimates of Chubb’s loss profile are inherently uncertain for many reasons, including the following:
•While the use of third-party modeling packages to simulate potential catastrophe losses is prevalent within the insurance industry, the models are reliant upon significant meteorology, seismology, and engineering assumptions to estimate catastrophe losses. In particular, modeled catastrophe events are not always a representation of actual events and ensuing additional loss potential;
•There is no universal standard in the preparation of insured data for use in the models, the running of the modeling software, and interpretation of loss output. These loss estimates do not represent our potential maximum exposures and it is highly likely that our actual incurred losses would vary materially from the modeled estimates;
•The potential effects of climate change add to modeling complexity; and
•Changing climate conditions could impact our exposure to natural catastrophe risks. Published studies by leading government, academic, and professional organizations combined with extensive research by Chubb climate scientists reveal the potential for increases in the frequency and severity of key natural perils such as tropical cyclones, inland flood, and wildfire. To understand the potential impacts on the Chubb portfolio, we have conducted stress tests on our peak exposure zone, namely in the U.S., using parameters outlined by the Intergovernmental Panel on Climate Change (IPCC) Climate Change 2021 report. These parameters consider the impacts of climate change and the resulting climate peril impacts over a timescale relevant to our business. The tests are conducted by adjusting our baseline view of risk for the perils of hurricane, inland flood, and wildfire in the U.S. to reflect increases in frequency and severity across the modeled domains for each of these perils. Based on these tests against the Chubb portfolio we do not expect material impacts to our baseline PMLs from climate change through December 31, 2023. These tests reflect current exposures only and exclude potentially mitigating factors such as changes to building codes, public or private risk mitigation, regulation, and public policy.
Refer to Item 7 in our 2022 Form 10-K for more information on man-made and other catastrophes.
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Global Property Catastrophe Reinsurance Program

Chubb’s core property catastrophe reinsurance program provides protection against natural catastrophes impacting its primary property operations (i.e., excluding our Global Reinsurance and Life Insurance segments).
We regularly review our reinsurance protection and corresponding property catastrophe exposures. This may or may not lead to the purchase of additional reinsurance prior to a program’s renewal date. In addition, prior to each renewal date, we consider how much, if any, coverage we intend to buy and we may make material changes to the current structure in light of various factors, including modeled PML assessment at various return periods, reinsurance pricing, our risk tolerance and exposures, and various other structuring considerations.
Chubb renewed its Global Property Catastrophe Reinsurance Program for our North American and International operations effective April 1, 2023, through March 31, 2024, with no material changes in coverage from the expiring program. The program consists of three layers in excess of losses retained by Chubb on a per occurrence basis. In addition, Chubb renewed its terrorism coverage (excluding nuclear, biological, chemical and radiation coverage, with an inclusion of coverage for biological and chemical coverage for personal lines) for the United States from April 1, 2023, through March 31, 2024, with the same limits and retention and percentage placed except that the majority of terrorism coverage is on an aggregate basis above our retentions without a reinstatement.
Effective September 1, 2023, Chubb purchased an additional layer of per occurrence coverage for named windstorms and earthquakes within Northeast states. Coverage is provided for North American and international operations losses within the territory through August 31, 2024.

Loss Location |  | Layer of Loss |  | Comments | Notes
United States (excluding Alaska and Hawaii) |  | $0 million – $1.1 billion |  | Losses retained by Chubb | (a)
United States (excluding Alaska and Hawaii) |  | $1.1 billion – $1.25 billion |  | All natural perils and terrorism | (b)
United States (excluding Alaska and Hawaii) |  | $1.25 billion – $2.35 billion |  | All natural perils and terrorism | (c)
United States (excluding Alaska and Hawaii) |  | $2.35 billion – $3.5 billion |  | All natural perils and terrorism | (d)
United States (Northeast States Only) |  | $3.5 billion – $4.0 billion |  | Named windstorm and earthquake | (e)
International (including Alaska and Hawaii) |  | $0 million – $200 million |  | Losses retained by Chubb | (a)
International (including Alaska and Hawaii) |  | $200 million – $1.3 billion |  | All natural perils and terrorism | (c)
Alaska, Hawaii, and Canada |  | $1.3 billion – $2.45 billion |  | All natural perils and terrorism | (d)

(a) Ultimate retention will depend upon the nature of the loss and the interplay between the underlying per risk programs and certain other catastrophe programs purchased by individual business units. These other catastrophe programs have the potential to reduce our effective retention below the stated levels.
(b) These coverages are partially placed with Reinsurers.
(c) These coverages are both part of the same Second layer within the Global Property Catastrophe Reinsurance Program and are fully placed with Reinsurers.
(d) These coverages are both part of the same Third layer within the Global Property Catastrophe Reinsurance Program and are fully placed with Reinsurers.
(e) Northeast states are defined as Virginia to Maine. This coverage is fully placed with Reinsurers.
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Capital Resources

Capital resources consist of funds deployed or available to be deployed to support our business operations.

| September 30 |  | December 31
| 2023 |  | 2022
(in millions of U.S. dollars, except for ratios) |  |  | As Adjusted
Short-term debt | $ | 700 |  |  | $ | 475 |
Long-term debt | 13,736 |  |  | 14,402 |
Total financial debt | 14,436 |  |  | 14,877 |
Trust preferred securities | 308 |  |  | 308 |
Total Chubb shareholders’ equity | 52,373 |  |  | 50,519 |
Total capitalization | $ | 67,117 |  |  | $ | 65,704 |
Ratio of financial debt to total capitalization | 21.5 | % |  | 22.6 | %
Ratio of financial debt plus trust preferred securities to total capitalization | 22.0 | % |  | 23.1 | %

Repurchase agreements are excluded from the table above and are disclosed separately from short-term debt in the Consolidated balance sheets. The repurchase agreements are collateralized borrowings where we maintain the right and ability to redeem the collateral on short notice, unlike short-term debt which comprises the current maturities of our long-term debt instruments.
For the nine months ended September 30, 2023, we repurchased $1.8 billion of Common Shares in a series of open market transactions under the Board of Directors (Board) share repurchase authorizations. At September 30, 2023, there were 23,467,247 Common Shares in treasury with a weighted-average cost of $159.69 per share, and $4.4 billion in share repurchase authorization remained.
We generally maintain the ability to issue certain classes of debt and equity securities via a Securities and Exchange Commission (SEC) shelf registration statement which is renewed every three years. This allows us capital market access for refinancing as well as for unforeseen or opportunistic capital needs.
Dividends
We have paid dividends each quarter since we became a public company in 1993. Under Swiss law, dividends must be stated in Swiss francs though dividend payments are made by Chubb in U.S. dollars. Refer to Note 14 to the Consolidated Financial Statements for a discussion of our dividend methodology.
At our May 2023 annual general meeting, our shareholders approved an annual dividend for the following year of up to $3.44 per share, or CHF 3.09 per share, calculated using the USD/CHF exchange rate as published in the Wall Street Journal on May 17, 2023, expected to be paid in four quarterly installments of $0.86 per share after the general meeting by way of a distribution from capital contribution reserves, transferred to free reserves for payment. The Board determines the record and payment dates at which the annual dividend may be paid until the date of the 2024 annual general meeting, and is authorized to abstain from distributing a dividend at its discretion. The annual dividend approved in May 2023 represented a $0.12 per share increase ($0.03 per quarter) over the prior year dividend.
The following table represents dividends paid per Common Share to shareholders of record on each of the following dates:

Shareholders of record as of: |  | Dividends paid as of: |  |  |
December 16, 2022 |  | January 6, 2023 |  | $0.83 (CHF 0.79) |
March 17, 2023 |  | April 10, 2023 |  | $0.83 (CHF 0.77) |
June 16, 2023 |  | July 7, 2023 |  | $0.86 (CHF 0.77) |
September 15, 2023 |  | October 6, 2023 |  | $0.86 (CHF 0.75) |

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Liquidity

We anticipate that positive cash flows from operations (underwriting activities and investment income) should be sufficient to cover cash outflows under most loss scenarios for the near term. In addition to cash from operations, routine sales of investments, and financing arrangements, we have agreements with a third-party bank provider which implemented two international multi-currency notional cash pooling programs to enhance cash management efficiency during periods of short-term timing mismatches between expected inflows and outflows of cash by currency. The programs allow us to optimize investment income by avoiding portfolio disruption. Should the need arise, we generally have access to capital markets and to credit facilities with letter of credit capacity of $4.0 billion, $3.0 billion of which can be used for revolving credit. At September 30, 2023, our usage under these facilities was $1.0 billion in letters of credit. Our access to credit under these facilities is dependent on the ability of the banks that are a party to the facilities to meet their funding commitments. The facilities require that we maintain certain financial covenants, all of which we met at September 30, 2023. Should the existing credit providers on these facilities experience financial difficulty, we may be required to replace credit sources, possibly in a difficult market. If we cannot obtain adequate capital or sources of credit on favorable terms, on a timely basis, or at all, our business, operating results, and financial condition could be adversely affected. To date, we have not experienced difficulty accessing our credit facility or establishing additional facilities when needed.
The payment of dividends or other statutorily permissible distributions from our operating companies are subject to the laws and regulations applicable to each jurisdiction, as well as the need to maintain capital levels adequate to support the insurance and reinsurance operations, including financial strength ratings issued by independent rating agencies. During the nine months ended September 30, 2023, we were able to meet all our obligations, including the payments of dividends on our Common Shares, with our net cash flows.
We assess which subsidiaries to draw dividends from based on a number of factors. Considerations such as regulatory and legal restrictions as well as the subsidiary’s financial condition are paramount to the dividend decision. Chubb Limited received dividends of $1.4 billion and $6.8 billion from its Bermuda subsidiaries during the nine months ended September 30, 2023 and 2022, respectively. Chubb Limited received cash dividends of $28 million and $32 million and non-cash dividends of $291 million and $348 million from Swiss subsidiaries during the nine months ended September 30, 2023 and 2022, respectively.
The U.S. insurance subsidiaries of Chubb INA Holdings Inc. (Chubb INA) may pay dividends, without prior regulatory approval, subject to restrictions set out in state law of the subsidiary’s domicile (or, if applicable, commercial domicile). Chubb INA’s international subsidiaries are also subject to insurance laws and regulations particular to the countries in which the subsidiaries operate. These laws and regulations sometimes include restrictions that limit the amount of dividends payable without prior approval of regulatory insurance authorities. Chubb Limited received no dividends from Chubb INA during the nine months ended September 30, 2023 and 2022. Debt issued by Chubb INA is serviced by statutorily permissible distributions by Chubb INA’s insurance subsidiaries to Chubb INA as well as other group resources. Chubb INA received $976 million and $1.8 billion from its subsidiaries during the nine months ended September 30, 2023 and 2022, respectively.
Cash Flows
Our sources of liquidity include cash from operations, routine sales of investments, and financing arrangements. The following is a discussion of our cash flows for the nine months ended September 30, 2023 and 2022.
Operating cash flows were $9.4 billion in the nine months ended September 30, 2023, compared to $8.6 billion in the prior year period, primarily due to higher net investment income and net premiums collected, partially offset by higher net losses paid and income taxes paid.
Cash used for investing was $5.4 billion in the nine months ended September 30, 2023, compared to $5.2 billion in the prior year period, an increase of $0.2 billion. Cash used for investing in the current period primarily included higher net purchases of fixed maturities and equity securities of $6.6 billion. This increase was partially offset by a decrease in cash used for the acquisition of subsidiaries of $5.3 billion and a decrease in private equity contributions, net of distributions of $1.2 billion.
Cash used for financing was $3.3 billion in the nine months ended September 30, 2023, compared to $2.7 billion in the prior year period. The increase of $0.6 billion used for financing included net repayments of $1.1 billion from repurchase agreements and $475 million from long-term debt, partially offset by lower common shares repurchased of $935 million.
We use repurchase agreements as a low-cost funding alternative. At September 30, 2023, there were $2.6 billion in repurchase agreements outstanding with various maturities over the next eight months.
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Both internal and external forces influence our financial condition, results of operations, and cash flows. Claim settlements, premium levels, and investment returns may be impacted by changing rates of inflation and other economic conditions. In many cases, significant periods of time, ranging up to several years or more, may lapse between the occurrence of an insured loss, the reporting of the loss to us, and the settlement of the liability for that loss.

Information provided in connection with outstanding debt of subsidiaries

Chubb INA Holdings Inc. (Subsidiary Issuer) is an indirect 100 percent-owned and consolidated subsidiary of Chubb Limited (Parent Guarantor). The Parent Guarantor fully and unconditionally guarantees certain of the debt of the Subsidiary Issuer.
The following table presents the condensed balance sheets of Chubb Limited and Chubb INA Holdings Inc., after elimination of investment in any non-guarantor subsidiary:

| Chubb Limited (Parent Guarantor) |  | Chubb INA Holdings Inc. (Subsidiary Issuer)
| September 30 |  | December 31 |  | September 30 |  | December 31
(in millions of U.S. dollars) | 2023 |  | 2022 |  | 2023 |  | 2022
Assets |  |  |  |  |  |  |
Investments | $ | — |  |  | $ | — |  |  | $ | 100 |  |  | $ | 135 |
Cash | 38 |  |  | 40 |  |  | 2 |  |  | 2 |
Due from parent guarantor/subsidiary issuer | 2 |  |  | 2 |  |  | 1,165 |  |  | 586 |
Due from subsidiaries that are not issuers or guarantors | 1,807 |  |  | 1,791 |  |  | 598 |  |  | 598 |
Other assets | 1 |  |  | 16 |  |  | 2,425 |  |  | 2,106 |
Total assets | $ | 1,848 |  |  | $ | 1,849 |  |  | $ | 4,290 |  |  | $ | 3,427 |
Liabilities |  |  |  |  |  |  |
Due to parent guarantor/subsidiary issuer | $ | 1,165 |  |  | $ | 586 |  |  | $ | 2 |  |  | $ | 2 |
Due to subsidiaries that are not issuers or guarantors | 232 |  |  | 248 |  |  | 1,645 |  |  | 1,710 |
Affiliated notional cash pooling programs | 1,235 |  |  | 252 |  |  | 2,300 |  |  | 1,496 |
Short-term debt | — |  |  | — |  |  | 700 |  |  | 475 |
Long-term debt | — |  |  | — |  |  | 13,736 |  |  | 14,402 |
Trust preferred securities | — |  |  | — |  |  | 308 |  |  | 308 |
Other liabilities | 527 |  |  | 616 |  |  | 1,439 |  |  | 1,305 |
Total liabilities | 3,159 |  |  | 1,702 |  |  | 20,130 |  |  | 19,698 |
Total shareholders’ equity | (1,311) |  |  | 147 |  |  | (15,840) |  |  | (16,271) |
Total liabilities and shareholders’ equity | $ | 1,848 |  |  | $ | 1,849 |  |  | $ | 4,290 |  |  | $ | 3,427 |

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The following table presents the condensed statements of operations and comprehensive income of Chubb Limited and Chubb INA Holdings Inc., excluding equity in earnings from non-guarantor subsidiaries:

Nine Months Ended September 30, 2023 | Chubb Limited (Parent Guarantor) |  | Chubb INA Holdings Inc. (Subsidiary Issuer)
(in millions of U.S. dollars) |
Net investment income (loss) | $ | (13) |  |  | $ | (94) |
Net realized gains (losses) | (1) |  |  | (107) |
Administrative expenses | 86 |  |  | (9) |
Interest (income) expense | (8) |  |  | 332 |
Other (income) expense | (33) |  |  | 58 |
Cigna integration expenses | — |  |  | 3 |
Income tax expense (benefit) | 10 |  |  | (181) |
Net loss | $ | (69) |  |  | $ | (404) |
Comprehensive loss | $ | (69) |  |  | $ | (535) |

ITEM 3. Quantitative and Qualitative Disclosures about Market Risk

Refer to Item 7A included in our 2022 Form 10-K.
Foreign currency management
As a global company, Chubb entities transact business in multiple currencies. Our policy is to generally match assets, liabilities and required capital for each individual jurisdiction in local currency, which would include the use of derivatives. We occasionally engage in hedging activity for planned cross border transactions. For an estimated impact of foreign currency movement on our net assets denominated in non-U.S. currencies, refer to Item 7A in our 2022 Form 10-K. This information will be updated and disclosed in interim filings if our net assets in non-U.S. currencies change materially from the December 31, 2022, balances disclosed in the 2022 Form 10-K.
Reinsurance of market risk benefits
Effective January 1, 2023, we adopted new U.S. GAAP accounting guidance for long-duration contracts that affects the accounting for GMDB and GLB liabilities, collectively referred to as market risk benefits (MRB). MRB are measured at fair value using a valuation model based on current net exposures, market data, our experience, and other factors. Changes in fair value are recorded to Market risk benefits gains (losses) in the Consolidated statements of operations, except for the change in fair value due to a change in the instrument-specific credit risk which will be recognized in Other comprehensive income.
Chubb views its MRB reinsurance business as having a similar risk profile to that of catastrophe reinsurance, with the probability of long-term economic loss relatively small at the time of pricing. Adverse changes in market factors and policyholder behavior will have an impact on both MRB gains (losses) and net income. When evaluating these risks, we expect to be compensated for taking both the risk of a cumulative long-term economic net loss, as well as the short-term accounting variations caused by these market movements. Therefore, we evaluate this business in terms of its long-term economic risk and reward.
The tables below are estimates of the sensitivities to instantaneous changes in economic inputs (e.g., equity shock, interest rate shock etc.) at September 30, 2023, for both the fair value of the MRB liability (FVL) and the fair value of specific derivative instruments held (hedge value) to partially offset the risk in the MRB reinsurance portfolio. The following assumptions should be considered when using the below tables:
•Equity shocks impact all global equity markets equally
•Our liabilities are sensitive to global equity markets in the following proportions: 80 percent—90 percent U.S. equity, and 10 percent—20 percent international equity.
•Our current hedge portfolio is sensitive only to U.S. equity markets.
•We would suggest using the S&P 500 index as a proxy for U.S. equity, and the MSCI EAFE index as a proxy for international equity.
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•Interest rate shocks assume a parallel shift in the U.S. yield curve
•Our liabilities are also sensitive to global interest rates at various points on the yield curve, mainly the U.S. Treasury curve in the following proportions: 0 percent—15 percent short-term rates (maturing in less than 5 years), 15 percent—25 percent medium-term rates (maturing between 5 years and 10 years, inclusive), and 70 percent—80 percent long-term rates (maturing beyond 10 years).
•A change in AA-rated credit spreads impacts the rate used to discount cash flows in the fair value model. AA-rated credit spreads are a proxy for both our own credit spreads and the credit spreads of the ceding insurers.
•The hedge sensitivity is from September 30, 2023, market levels and only applicable to the equity and interest rate sensitivities table below.
•The sensitivities do not scale linearly and may be proportionally greater for larger movements in the market factors. Actual sensitivity of our net income may differ from those disclosed in the tables below due to fluctuations in short-term market movements.

Sensitivities to equity and interest rate movements |
(in millions of U.S. dollars) | Worldwide Equity Shock
Interest Rate Shock | +10% |  | Flat |  | -10% |  | -20% |  | -30% |  | -40%
+100 bps | (Increase)/decrease in FVL | $ | 279 |  |  | $ | 186 |  |  | $ | 72 |  |  | $ | (75) |  |  | $ | (259) |  |  | $ | (489) |
| Increase/(decrease) in hedge value | (107) |  |  | — |  |  | 107 |  |  | 214 |  |  | 321 |  |  | 429 |
| Increase/(decrease) in net income | $ | 172 |  |  | $ | 186 |  |  | $ | 179 |  |  | $ | 139 |  |  | $ | 62 |  |  | $ | (60) |
Flat | (Increase)/decrease in FVL | $ | 111 |  |  | $ | — |  |  | $ | (136) |  |  | $ | (313) |  |  | $ | (527) |  |  | $ | (784) |
| Increase/(decrease) in hedge value | (107) |  |  | — |  |  | 107 |  |  | 214 |  |  | 321 |  |  | 429 |
| Increase/(decrease) in net income | $ | 4 |  |  | $ | — |  |  | $ | (29) |  |  | $ | (99) |  |  | $ | (206) |  |  | $ | (355) |
-100 bps | (Increase)/decrease in FVL | $ | (92) |  |  | $ | (222) |  |  | $ | (392) |  |  | $ | (595) |  |  | $ | (836) |  |  | $ | (1,118) |
| Increase/(decrease) in hedge value | (107) |  |  | — |  |  | 107 |  |  | 214 |  |  | 321 |  |  | 429 |
| Increase/(decrease) in net income | $ | (199) |  |  | $ | (222) |  |  | $ | (285) |  |  | $ | (381) |  |  | $ | (515) |  |  | $ | (689) |
Sensitivities to Other Economic Variables | AA-rated Credit Spreads |  | Interest Rate Volatility |  | Equity Volatility
(in millions of U.S. dollars) | +100 bps |  | -100 bps |  | +2% |  | -2% |  | +2% |  | -2%
(Increase)/decrease in FVL | $ | 50 |  |  | $ | (56) |  |  | $ | (1) |  |  | $ | 1 |  |  | $ | (17) |  |  | $ | 17 |
Increase/(decrease) in net income | $ | 50 |  |  | $ | (56) |  |  | $ | (1) |  |  | $ | 1 |  |  | $ | (17) |  |  | $ | 17 |

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Market Risk Benefits Net Amount at Risk
All our MRB reinsurance treaties include annual or aggregate claim limits and many include an aggregate deductible which limit the net amount at risk under these programs. The tables below present the net amount at risk at September 30, 2023, following an immediate change in equity market levels, assuming all global equity markets are impacted equally.
a) Reinsurance covering the GMDB risk only

| Equity Shock
(in millions of U.S. dollars) | +20 | % |  | Flat |  | -20 | % |  | -40 | % |  | -60 | % |  | -80 | %
GMDB net amount at risk | $ | 238 |  |  | $ | 350 |  |  | $ | 615 |  |  | $ | 715 |  |  | $ | 663 |  |  | $ | 541 |
Claims at 100% immediate mortality | 146 |  |  | 150 |  |  | 149 |  |  | 139 |  |  | 126 |  |  | 114 |

The treaty limits function as a ceiling as equity markets fall. As the shocks in the table above become incrementally more negative, the impacts begin to drop due to the specific nature of these claim limits, many of which are annual claim limits calculated as a percentage of the reinsured account value. There is also an impact due to a portion of the reinsurance under which claims are positively correlated to equity markets (claims decrease as equity markets fall).
b) Reinsurance covering the GLB risk only

| Equity Shock
(in millions of U.S. dollars) | +20 | % |  | Flat |  | -20 | % |  | -40 | % |  | -60 | % |  | -80 | %
GLB net amount at risk | $ | 938 |  |  | $ | 1,251 |  |  | $ | 1,752 |  |  | $ | 2,228 |  |  | $ | 2,573 |  |  | $ | 2,832 |

The treaty limits cause the net amount at risk to increase at a declining rate as equity markets fall.
c) Reinsurance covering both the GMDB and GLB risks on the same underlying policyholders

| Equity Shock
(in millions of U.S. dollars) | +20 | % |  | Flat |  | -20 | % |  | -40 | % |  | -60 | % |  | -80 | %
GMDB net amount at risk | $ | 46 |  |  | $ | 55 |  |  | $ | 65 |  |  | $ | 75 |  |  | $ | 82 |  |  | $ | 88 |
GLB net amount at risk | 392 |  |  | 482 |  |  | 592 |  |  | 706 |  |  | 819 |  |  | 835 |
Claims at 100% immediate mortality | 30 |  |  | 30 |  |  | 30 |  |  | 30 |  |  | 30 |  |  | 30 |

The treaty limits cause the GMDB and GLB net amount at risk to increase at a declining rate as equity markets fall.
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ITEM 4. Controls and Procedures

Chubb’s management, with the participation of Chubb’s Chief Executive Officer and Chief Financial Officer, evaluated the effectiveness of Chubb’s disclosure controls and procedures as defined in Rule 13a-15(e) and Rule 15d-15(e) under the Securities Exchange Act of 1934 as of September 30, 2023. Based upon that evaluation, Chubb’s Chief Executive Officer and Chief Financial Officer concluded that Chubb’s disclosure controls and procedures are effective in allowing information required to be disclosed in reports filed under the Securities Exchange Act of 1934 to be recorded, processed, summarized, and reported within time periods specified in the rules and forms of the SEC, and that such information is accumulated and communicated to Chubb’s management, including its Chief Executive Officer and Chief Financial Officer, as appropriate to allow timely decisions regarding required disclosure.
Effective July 1, 2023, Chubb discontinued the equity method of accounting to its investment in Huatai Group and applied consolidation accounting. As of and for the three months ended September 30, 2023, Huatai Group represented approximately 3 percent of consolidated revenues and approximately 7 percent of total assets. We currently exclude, and are in the process of working to incorporate, Huatai Group in our evaluation of internal controls over financial reporting, and related disclosure controls and procedures.
On July 1, 2022, Chubb completed the acquisition of Cigna's Personal Accident, Supplemental Health and Life Insurance Business in Asia-Pacific. Since the acquisition we have worked to incorporate the acquired Cigna Life Business internal control processes for the key Sarbanes-Oxley locations.
Other than working to incorporate Huatai Group as noted above, there have been no changes in Chubb's internal controls over financial reporting during the three months ended September 30, 2023, that have materially affected, or are reasonably likely to materially affect, Chubb's internal controls over financial reporting.
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PART II OTHER INFORMATION

ITEM 1. Legal Proceedings

The information required with respect to this item is included in Note 13 h) to the Consolidated Financial Statements, which is hereby incorporated herein by reference.

ITEM 1A. Risk Factors

The following supplements the risk factors that could have a material impact on our results of operations or financial condition as described under "Risk Factors" under Item 1A of Part I of our 2022 Form 10-K.
We may be subject to U.S. tax and Bermuda tax which may have an adverse effect on our results of operations and shareholder investment.
Chubb Limited and our non-U.S. subsidiaries operate in a manner so that none of these companies should be subject to U.S. tax (other than U.S. excise tax on insurance and reinsurance premium income attributable to insuring or reinsuring U.S. risks and U.S. withholding tax on some types of U.S. source investment income), because none of these companies should be treated as engaged in a trade or business within the U.S. However, because there is considerable uncertainty as to the activities that constitute being engaged in a trade or business within the U.S., we cannot be certain that the Internal Revenue Service (IRS) will not contend successfully that Chubb Limited or its non-U.S. subsidiaries are engaged in a trade or business in the U.S. If Chubb Limited or any of its non-U.S. subsidiaries were considered to be engaged in a trade or business in the U.S., such entity could be subject to U.S. corporate income and branch profits taxes on the portion of its earnings effectively connected to such U.S. business, in which case our results of operations and our shareholders' investments could be adversely affected.
The Bermuda Minister of Finance, under the Exempted Undertakings Tax Protection Act 1966 of Bermuda, as amended, has given Chubb Limited and its Bermuda insurance subsidiaries a written assurance that if any legislation is enacted in Bermuda that would impose tax computed on profits or income, or computed on any capital asset, gain, or appreciation, then the imposition of any such tax would not be applicable to those companies or any of their respective operations, shares, debentures, or other obligations until March 31, 2035, except insofar as such tax would apply to persons ordinarily resident in Bermuda or is payable by us in respect of real property owned or leased by us in Bermuda.
However, as part of its evaluation of a new income tax regime, the Bermuda Minister of Finance is reviewing the applicability of such written tax assurance certificates. The Bermuda Minister’s process for evaluation of a new income tax regime has been announced to comprise three expected public consultation papers, of which two have been issued already. The first one was issued on August 8, 2023, which considered a proposed Bermuda corporate income tax of up to 15% effective for tax years beginning on or after January 1, 2025. The second public consultation paper issued October 5, 2023, indicates that the Bermuda Government believes it is reasonable and proportionate for any new Bermuda corporate income tax regime to supersede any existing tax assurance certificates held by entities within the scope of the new Bermuda corporate income tax.
We currently anticipate that a new Bermuda income tax would be a covered tax under the OECD’s global minimum tax regime discussed in our Risk Factor titled “The Organization for Economic Cooperation and Development (OECD), European Union (EU), Swiss Federal Council, and other jurisdictions are considering or have passed measures that might change long standing tax principles that could increase our taxes.” Therefore, we would expect any implementation of the OECD global minimum tax regime to count any enacted Bermuda income tax toward such OECD minimum tax.
Although we cannot predict when or if any new Bermuda corporate income tax will be enacted, the imposition of a Bermuda corporate income tax could, if applicable to our Bermuda based entities, have an adverse effect on our financial condition and results of operations.
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ITEM 2. Unregistered Sales of Equity Securities and Use of Proceeds and Issuer Repurchases of Equity Securities

Issuer’s Repurchases of Equity Securities
The following table provides information with respect to purchases by Chubb of its Common Shares during the three months ended September 30, 2023:

Period | Total Number of Shares Purchased (1) |  | Average Price Paid per Share |  | Total Number of Shares Purchased as Part of Publicly Announced Plan (2) |  | Approximate Dollar Value of Shares that May Yet be Purchased Under the Plan
July 1 through July 31 | 178,922 |  |  | $ | 205.91 |  |  | 166,000 |  |  | $ | 4.97 | billion
August 1 through August 31 | 1,700,074 |  |  | $ | 202.38 |  |  | 1,698,400 |  |  | $ | 4.62 | billion
September 1 through September 30 | 1,088,598 |  |  | $ | 209.99 |  |  | 1,085,500 |  |  | $ | 4.40 | billion
Total | 2,967,594 |  |  | $ | 205.38 |  |  | 2,949,900 |  |  |

(1)This column represents open market share repurchases and the surrender to Chubb of Common Shares to satisfy tax withholding obligations in connection with the vesting of restricted stock issued to employees and to cover the cost of the exercise of options by employees through stock swaps.
(2)In June 2023, the Board authorized the repurchase of up to $5.0 billion of Chubb's Common Shares effective July 1, 2023 with no expiration date. The aggregate value of shares purchased in the three months ended September 30, 2023 as part of the publicly announced plan was $606 million. Refer to Note 14 to the Consolidated Financial Statements for more information on the Chubb Limited securities repurchase authorizations.
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ITEM 5. Other Information

On July 31, 2023, John J. Lupica, Vice Chairman, Chubb Group, and President, North America Insurance, adopted a "Rule 10b5-1 trading arrangement" as defined under Item 408 of SEC Regulation S-K. The arrangement is scheduled to expire on October 30, 2024, subject to earlier termination in accordance with its terms. The aggregate number of Chubb common shares authorized to be sold pursuant to the trading arrangement is 17,810.
During the three months ended September 30, 2023, no other director or officer of Chubb (as defined in Rule 16a-1(f) under the Exchange Act) informed us of the adoption or termination of a "Rule 10b5-1 trading arrangement" or "non-Rule 10b5-1 trading arrangement," as those terms are defined in Item 408 of SEC Regulation S-K.
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ITEM 6. Exhibits

|  |  |  | Incorporated by Reference |  |
Exhibit Number |  | Exhibit Description |  | Form |  | Original Number |  | Date Filed |  | Filed Herewith
3.1 |  | Articles of Association of the Company, as amended and restated |  | 8-K |  | 3.1 |  | May 17, 2023 |  |
3.2 |  | Organizational Regulations of the Company, as amended |  | 10-K |  | 3.2 |  | February 24, 2023 |  |
4.1 |  | Articles of Association of the Company, as amended and restated |  | 8-K |  | 4.1 |  | May 17, 2023 |  |
4.2 |  | Organizational Regulations of the Company, as amended |  | 10-K |  | 4.2 |  | February 24, 2023 |  |
22.1 |  | Guaranteed Securities |  | 10-Q |  | 22.1 |  | May 2, 2023 |  |
31.1 |  | Certification Pursuant to Section 302 of The Sarbanes-Oxley Act of 2002 |  |  |  |  |  |  |  | X
31.2 |  | Certification Pursuant to Section 302 of The Sarbanes-Oxley Act of 2002 |  |  |  |  |  |  |  | X
32.1 |  | Certification Pursuant to 18 U.S.C. Section 1350, As Adopted Pursuant to Section 906 of The Sarbanes-Oxley Act of 2002 |  |  |  |  |  |  |  | X
32.2 |  | Certification Pursuant to 18 U.S.C. Section 1350, As Adopted Pursuant to Section 906 of The Sarbanes-Oxley Act of 2002 |  |  |  |  |  |  |  | X
101.1 |  | The following financial information from Chubb Limited’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2023, formatted in Inline XBRL: (i) Consolidated Balance Sheets at September 30, 2023, and December 31, 2022; (ii) Consolidated Statements of Operations and Comprehensive Income for the three and nine months ended September 30, 2023 and 2022; (iii) Consolidated Statements of Shareholders’ Equity for the three and nine months ended September 30, 2023 and 2022; (iv) Consolidated Statements of Cash Flows for the nine months ended September 30, 2023 and 2022; and (v) Notes to Consolidated Financial Statements |  |  |  |  |  |  |  | X
104.1 |  | The Cover Page Interactive Data File formatted in Inline XBRL (The cover page XBRL tags are embedded in the Inline XBRL document and included in Exhibit 101.1) |  |  |  |  |  |  |  |

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

| CHUBB LIMITED
| (Registrant)
November 1, 2023 | /s/ Evan G. Greenberg
| Evan G. Greenberg
| Chairman and Chief Executive Officer
November 1, 2023 | /s/ Peter C. Enns
| Peter C. Enns
| Executive Vice President and Chief Financial Officer

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