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Investment Information (Tables)
9 Months Ended
Sep. 30, 2025
Disclosure Investment Information [Abstract]  
Summary of fair value and cost or amortized cost of available for sale securities
The following table summarizes the fair value and cost or amortized cost of the Company’s securities classified as available for sale:
Estimated
Fair
Value
Gross
Unrealized
Gains
Gross
Unrealized
Losses
Allowance for Expected Credit Losses Cost or
Amortized
Cost
September 30, 2025
Fixed maturities:
Corporate bonds$15,005 $301 $(173)$(14)$14,891 
U.S. government and government agencies6,324 23 (31)— 6,332 
Asset backed securities3,149 22 (19)(6)3,152 
Non-U.S. government securities3,241 59 (81)(1)3,264 
Commercial mortgage backed securities1,249 10 (6)— 1,245 
Residential mortgage backed securities2,766 30 (22)— 2,758 
Municipal bonds174 — (5)— 179 
Total31,908 445 (337)(21)31,821 
Short-term investments2,351 (1)— 2,350 
Total$34,259 $447 $(338)$(21)$34,171 
December 31, 2024
Fixed maturities:
Corporate bonds$12,487 $110 $(346)$(12)$12,735 
U.S. government and government agencies6,710 (149)— 6,851 
Asset backed securities2,900 19 (32)(8)2,921 
Non-U.S. government securities2,538 30 (107)(1)2,616 
Commercial mortgage backed securities1,058 (11)(1)1,064 
Residential mortgage backed securities1,079 (31)— 1,104 
Municipal bonds263 — (16)— 279 
Total27,035 179 (692)(22)27,570 
Short-term investments2,784 (2)— 2,784 
Total$29,819 $181 $(694)$(22)$30,354 
Summary of available for sale securities in an unrealized loss position
The following table summarizes, for all available for sale securities in an unrealized loss position, the fair value and gross unrealized loss by length of time the security has been in a continual unrealized loss position:
 Less than 12 Months12 Months or MoreTotal
Estimated
Fair
Value
Gross
Unrealized
Losses
Estimated
Fair
Value
Gross
Unrealized
Losses
Estimated
Fair
Value
Gross
Unrealized
Losses
September 30, 2025
Fixed maturities:
Corporate bonds$2,489 $(73)$1,714 $(100)$4,203 $(173)
U.S. government and government agencies3,205 (18)359 (13)3,564 (31)
Non-U.S. government securities1,671 (36)343 (45)2,014 (81)
Residential mortgage backed securities193 (2)168 (20)361 (22)
Asset backed securities461 (2)339 (17)800 (19)
Commercial mortgage backed securities336 (1)84 (5)420 (6)
Municipal bonds13 — 146 (5)159 (5)
Total8,368 (132)3,153 (205)11,521 (337)
Short-term investments616 (1)— — 616 (1)
Total$8,984 $(133)$3,153 $(205)$12,137 $(338)
December 31, 2024
Fixed maturities:
Corporate bonds$4,582 $(114)$2,924 $(232)$7,506 $(346)
U.S. government and government agencies5,130 (100)516 (49)5,646 (149)
Non-U.S. government securities1,650 (58)418 (49)2,068 (107)
Residential mortgage backed securities571 (6)186 (25)757 (31)
Asset backed securities236 (8)426 (24)662 (32)
Commercial mortgage backed securities180 (1)434 (10)614 (11)
Municipal bonds48 (1)176 (15)224 (16)
Total12,397 (288)5,080 (404)17,477 (692)
Short-term investments97 (2)— — 97 (2)
Total$12,494 $(290)$5,080 $(404)$17,574 $(694)
Contractual maturities of the Company's fixed maturities
The contractual maturities of the Company’s fixed maturities are shown in the following table. Expected maturities, which are management’s best estimates, will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.
September 30, 2025December 31, 2024
MaturityEstimated
Fair
Value
Amortized
Cost
Estimated
Fair
Value
Amortized
Cost
Due in one year or less$527 $525 $438 $451 
Due after one year through five years16,764 16,710 15,364 15,590 
Due after five years through 10 years6,808 6,792 5,811 6,039 
Due after 10 years645 639 385 401 
 24,744 24,666 21,998 22,481 
Residential mortgage backed securities2,766 2,758 1,079 1,104 
Commercial mortgage backed securities1,249 1,245 1,058 1,064 
Asset backed securities3,149 3,152 2,900 2,921 
Total$31,908 $31,821 $27,035 $27,570 
Summary of other investments, at fair value
The following table summarizes the Company’s other investments:
September 30,
2025
December 31,
2024
Other investments$1,911 $2,135 
Fixed maturities 1,050 854 
Short term investments61 70 
Equity securities
Total$3,027 $3,066 
The following table summarizes the Company’s other investments, as detailed in the previous table, by strategy:
September 30,
2025
December 31,
2024
Investment grade fixed income$1,148 $1,055 
Private equity268 229 
Lending212 303 
Term loan investments201 430 
Credit related funds80 99 
Energy19 
Total$1,911 $2,135 
Components of net investment income
The components of net investment income were derived from the following sources:
September 30,
 20252024
Three Months Ended
Fixed maturities$379 $340 
Short term investments25 38 
Equity securities (dividends)10 
Other (1)19 35 
Gross investment income433 422 
Investment expenses(25)(23)
Net investment income$408 $399 
Nine Months Ended
Fixed maturities$1,081 $926 
Short term investments75 102 
Equity securities (dividends)31 27 
Other (1)82 103 
Gross investment income1,269 1,158 
Investment expenses(78)(68)
Net investment income$1,191 $1,090 
(1)    Amounts include dividends and other distributions on investment funds, term loan investments, funds held balances, cash balances and other items.
Summary of net realized gains (losses), including change in allowance for credit losses on financial assets and net impairment losses recognized in earnings
Net realized gains (losses), which include changes in the allowance for credit losses on financial assets and net impairment losses recognized in earnings were as follows:
September 30,
 20252024
Three Months Ended
Available for sale securities:  
Gross gains on investment sales$103 $104 
Gross losses on investment sales(59)(50)
Change in fair value of assets and liabilities accounted for using the fair value option:
Fixed maturities11 25 
Other investments29 (120)
Short-term investments— — 
Equity securities, at fair value:
Net realized gains (losses) on sales during the period15 15 
Net unrealized gains (losses) on equity securities still held at reporting date79 58 
Allowance for credit losses:
Investments related
Underwriting related(9)
Derivative instruments (1)30 125 
Other (2)
Net realized gains (losses)$210 $169 
Nine Months Ended
Available for sale securities:
Gross gains on investment sales$223 $167 
Gross losses on investment sales(228)(205)
Change in fair value of assets and liabilities accounted for using the fair value option:
Fixed maturities33 23 
Other investments31 (150)
Short-term investments— 
Equity securities, at fair value:
Net realized gains (losses) on sales during the period69 31 
Net unrealized gains (losses) on equity securities still held at reporting date113 147 
Allowance for credit losses:
Investments related(4)
Underwriting related(10)— 
Derivative instruments (1)292 116 
Other (2)(80)225 
Net realized gains (losses)$442 $358 
(1)    See note 10 for information on the Company’s derivative instruments.
(2)    Amounts in the 2025 periods primarily include losses related to the sale of certain alternative investments accounted for under the equity method.
Summary of investments accounted for using equity method
The following table summarizes the Company’s investments accounted for using the equity method, by strategy:
September 30,
2025
December 31,
2024
Private equity$2,270 $1,915 
Credit related funds1,588 1,487 
Lending505 616 
Real estate753 869 
Fixed income471 384 
Infrastructure411 425 
Equities191 217 
Energy43 67 
Total$6,232 $5,980 
Summary of investments in limited partnership interests where the Company has a variable interest
The following table summarizes investments in limited partnership interests where the Company has a variable interest by balance sheet line item:
September 30,
2025
December 31,
2024
Investments accounted for using the equity method (1)$6,232 $5,980 
Investments accounted for using the fair value option (2)— 48 
Total$6,232 $6,028 
(1)    Aggregate unfunded commitments were $3.7 billion at September 30, 2025, compared to $4.3 billion at December 31, 2024.
(2)    Aggregate unfunded commitments were $15 million at September 30, 2025, compared to $21 million at December 31, 2024.
Rollforward of the allowance for expected credit losses of securities classified as available for sale
The following table provides a roll forward of the allowance for expected credit losses of the Company’s securities classified as available for sale:
Structured Securities (1)Corporate
Bonds
Non-U.S.
Government
Securities
Total
Three Months Ended September 30, 2025
Balance at beginning of period$10 $16 $$28 
Additions for current-period provision for expected credit losses— — — — 
Additions (reductions) for previously recognized expected credit losses (4)— (1)(5)
Reductions due to disposals— (2)— (2)
Balance at end of period$$14 $$21 
Three Months Ended September 30, 2024
Balance at beginning of period$10 $16 $$27 
Additions for current-period provision for expected credit losses— — — — 
Additions (reductions) for previously recognized expected credit losses (3)(3)— (6)
Reductions due to disposals(1)(1)— (2)
Balance at end of period$$12 $$19 
Nine Months Ended September 30, 2025
Balance at beginning of year$$12 $$22 
Additions for current-period provision for expected credit losses— 
Additions (reductions) for previously recognized expected credit losses(6)— (1)
Reductions due to disposals— (5)— (5)
Balance at end of period$$14 $$21 
Nine Months Ended September 30, 2024
Balance at beginning of year$$20 $$28 
Additions for current-period provision for expected credit losses— — — — 
Additions (reductions) for previously recognized expected credit losses— (4)— (4)
Reductions due to disposals(1)(4)— (5)
Balance at end of period$$12 $$19 
(1)    Includes asset backed securities, residential mortgage backed securities and commercial mortgage backed securities.
Summary of restricted assets
The following table details the value of the Company’s restricted assets:
September 30,
2025
December 31,
2024
Assets used for collateral or guarantees:  
Affiliated transactions$5,292 $4,730 
Third party agreements6,636 5,999 
Deposits with U.S. regulatory authorities952 882 
Other (1)1,559 1,437 
Total restricted assets$14,439 $13,048 
(1)    Primarily includes Funds at Lloyds, deposits with non-U.S. regulatory authorities and other restricted assets.
Reconciliation of cash and restricted cash
The following table details reconciliation of cash and restricted cash within the Consolidated Balance Sheets:
September 30,
2025
December 31,
2024
Cash$1,063 $979 
Restricted cash (included in ‘other assets’)791 781 
Cash and restricted cash$1,854 $1,760