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Fair Value Measurements (Tables) | 12 Months Ended
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Dec. 31, 2024
Fair Value Disclosures [Abstract] |
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis |
Assets and (Liabilities) Carried at Fair Value by Hierarchy Level as of December 31, 2024
| Total | Quoted Prices in Active Markets for Identical Assets (Level 1) | Significant Observable Inputs (Level 2) | Significant Unobservable Inputs (Level 3)
Assets accounted for at fair value on a recurring basis |  |  |  |
Fixed maturities, AFS |  |  |  |
Asset-backed securities ("ABS") | $ | 3,937 |  | $ | — |  | $ | 3,915 |  | $ | 22 |
Collateralized loan obligations ("CLOs") | 3,250 |  | — |  | 3,134 |  | 116 |
Commercial mortgage-backed securities ("CMBS") | 2,736 |  | — |  | 2,569 |  | 167 |
Corporate | 20,636 |  | — |  | 18,355 |  | 2,281 |
Foreign government/government agencies | 480 |  | — |  | 480 |  | — |
Municipal | 5,304 |  | — |  | 5,304 |  | — |
Residential mortgage-backed securities ("RMBS") | 5,230 |  | — |  | 5,206 |  | 24 |
U.S. Treasuries | 994 |  | 57 |  | 937 |  | — |
Total fixed maturities, AFS | 42,567 |  | 57 |  | 39,900 |  | 2,610 |
FVO securities | 308 |  | — |  | 111 |  | 197 |
Equity securities, at fair value [1] | 603 |  | 372 |  | 144 |  | 87 |
Derivative assets |  |  |  |
Credit derivatives | 30 |  | — |  | 30 |  | — |
Equity derivatives | 4 |  | — |  | 4 |  | — |
Foreign exchange derivatives | 23 |  | — |  | 23 |  | — |
Total derivative assets [2] | 57 |  | — |  | 57 |  | — |
Short-term investments | 4,068 |  | 1,271 |  | 2,699 |  | 98 |
Total assets accounted for at fair value on a recurring basis | $ | 47,603 |  | $ | 1,700 |  | $ | 42,911 |  | $ | 2,992 |
Liabilities accounted for at fair value on a recurring basis |  |  |  |
Derivative liabilities |  |  |  |
Credit derivatives | $ | (30) |  | $ | — |  | $ | (30) |  | $ | — |
Foreign exchange derivatives | 18 |  | — |  | 18 |  | — |
Total derivative liabilities [3] | (12) |  | — |  | (12) |  | — |
Total liabilities accounted for at fair value on a recurring basis | $ | (12) |  | $ | — |  | $ | (12) |  | $ | — |
Assets and (Liabilities) Carried at Fair Value by Hierarchy Level as of December 31, 2023
| Total | Quoted Prices in Active Markets for Identical Assets (Level 1) | Significant Observable Inputs (Level 2) | Significant Unobservable Inputs (Level 3)
Assets accounted for at fair value on a recurring basis |  |  |  |
Fixed maturities, AFS |  |  |  |
ABS | $ | 3,320 |  | $ | — |  | $ | 3,320 |  | $ | — |
CLOs | 3,090 |  | — |  | 2,977 |  | 113 |
CMBS | 3,125 |  | — |  | 2,898 |  | 227 |
Corporate | 17,866 |  | — |  | 16,005 |  | 1,861 |
Foreign government/government agencies | 562 |  | — |  | 562 |  | — |
Municipal | 6,039 |  | — |  | 6,039 |  | — |
RMBS | 4,287 |  | — |  | 4,251 |  | 36 |
U.S. Treasuries | 1,529 |  | 18 |  | 1,511 |  | — |
Total fixed maturities, AFS | 39,818 |  | 18 |  | 37,563 |  | 2,237 |
FVO securities | 327 |  | — |  | 160 |  | 167 |
Equity securities, at fair value [1] | 864 |  | 333 |  | 473 |  | 58 |
Derivative assets |  |  |  |
Credit derivatives | (10) |  | — |  | (10) |  | — |
Foreign exchange derivatives | 9 |  | — |  | 9 |  | — |
Total derivative assets [2] | (1) |  | — |  | (1) |  | — |
Short-term investments | 3,850 |  | 1,400 |  | 2,425 |  | 25 |
Total assets accounted for at fair value on a recurring basis | $ | 44,858 |  | $ | 1,751 |  | $ | 40,620 |  | $ | 2,487 |
Liabilities accounted for at fair value on a recurring basis |  |  |  |
Derivative liabilities |  |  |  |
Credit derivatives | $ | 10 |  | $ | — |  | $ | 10 |  | $ | — |
Foreign exchange derivatives | 4 |  | — |  | 4 |  | — |
Interest rate derivatives | (6) |  | — |  | (6) |  | — |
Total derivative liabilities [3] | 8 |  | — |  | 8 |  | — |
Total liabilities accounted for at fair value on a recurring basis | $ | 8 |  | $ | — |  | $ | 8 |  | $ | — |
[1]Level 3 includes investments that have contractual sales restrictions that require consent to sell and are in place for the duration that the securities are held by the Company. [2]Includes derivative instruments in a net positive fair value position after consideration of the accrued interest and impact of collateral posting requirements which may be imposed by agreements and applicable law. See footnote 3 to this table for derivative liabilities. [3]Includes derivative instruments in a net negative fair value position (derivative liability) after consideration of the accrued interest and impact of collateral posting requirements which may be imposed by agreements and applicable law.
Fair Value Inputs, Assets, Quantitative Information |
Significant Unobservable Inputs for Level 3 - Securities
Assets accounted for at fair value on a recurring basis | Fair Value | Predominant Valuation Technique | Significant Unobservable Input | Minimum | Maximum | Weighted Average [1] | Impact of Increase in Input on Fair Value [2]
As of December 31, 2024
CMBS [3] | $ | 166 |  | Discounted cash flows | Spread (encompasses prepayment, default risk and loss severity) | 200 bps | 1,221 bps | 418 bps | Decrease
Corporate [4] | $ | 2,166 |  | Discounted cash flows | Spread | 81 bps | 794 bps | 286 bps | Decrease
RMBS [3] | $ | 19 |  | Discounted cash flows | Spread [6] | 100 bps | 372 bps | 181 bps | Decrease
|  |  | Constant prepayment rate [6] | 1% | 6% | 4% | Decrease [5]
|  |  | Constant default rate [6] | 1% | 4% | 2% | Decrease
|  |  | Loss severity [6] | 30% | 50% | 41% | Decrease
Short-term investments | $ | 98 |  | Discounted cash flows | Spread | 266 bps | 266 bps | 266 bps | Decrease
As of December 31, 2023
CLOs [3] | $ | 98 |  | Discounted cash flows | Spread | 268 bps | 270 bps | 269 bps | Decrease
CMBS [3] | $ | 226 |  | Discounted cash flows | Spread (encompasses prepayment, default risk and loss severity) | 365 bps | 1,315 bps | 509 bps | Decrease
Corporate [4] | $ | 1,741 |  | Discounted cash flows | Spread | 49 bps | 743 bps | 323 bps | Decrease
RMBS | $ | 36 |  | Discounted cash flows | Spread [6] | 32 bps | 298 bps | 161 bps | Decrease
|  |  | Constant prepayment rate [6] | 1% | 5% | 4% | Decrease [5]
|  |  | Constant default rate [6] | 1% | 5% | 2% | Decrease
|  |  | Loss severity [6] | 10% | 70% | 41% | Decrease
Short-term investments [3] | $ | 15 |  | Discounted cash flows | Spread | 579 bps | 1,254 bps | 1,225 bps | Decrease
[1]The weighted average is determined based on the fair value of the securities. [2]Conversely, the impact of a decrease in input would have the opposite impact to the fair value as that presented in the table. [3]Excludes securities for which the Company bases fair value on broker quotations. [4]Excludes securities for which the Company bases fair value on broker quotations; however, included are broker priced lower-rated private placement securities for which the Company receives spread and yield information to corroborate the fair value. [5]Decrease for above market rate coupons and increase for below market rate coupons. [6]Generally, a change in the assumption used for the constant default rate would have been accompanied by a directionally similar change in the assumption used for the loss severity and a directionally opposite change in the assumption used for constant prepayment rate and would have resulted in wider spreads.
Fair Value, Assets (Liabilities) Measured on Recurring Basis, Unobservable Input Reconciliation |
Fair Value Rollforwards for Financial Instruments Classified as Level 3 for the Year Ended December 31, 2024
| Total realized/unrealized gains (losses) |  |  |  |  |  |
|  | Fair value as of January 1, 2024 | Included in net income [1] | Included in OCI [2] | Purchases | Settlements | Sales | Transfers into Level 3 [3] | Transfers out of Level 3 [3] | Fair value as of December 31, 2024
Assets |  |  |  |  |  |  |  |  |
Fixed maturities, AFS |  |  |  |  |  |  |  |  |
| ABS | $ | — |  | $ | — |  | $ | — |  | $ | 70 |  | $ | — |  | $ | — |  | $ | — |  | $ | (48) |  | $ | 22 |
| CLOs | 113 |  | — |  | — |  | 919 |  | (64) |  | — |  | — |  | (852) |  | 116 |
| CMBS | 227 |  | (6) |  | 18 |  | — |  | (10) |  | (67) |  | 39 |  | (34) |  | 167 |
| Corporate | 1,861 |  | — |  | (23) |  | 876 |  | (316) |  | (126) |  | 9 |  | — |  | 2,281 |
| RMBS | 36 |  | — |  | — |  | 90 |  | (17) |  | — |  | — |  | (85) |  | 24 |
Total fixed maturities, AFS | 2,237 |  | (6) |  | (5) |  | 1,955 |  | (407) |  | (193) |  | 48 |  | (1,019) |  | 2,610 |
FVO securities | 167 |  | (7) |  | — |  | 52 |  | (15) |  | — |  | — |  | — |  | 197 |
Equity securities, at fair value | 58 |  | 3 |  | — |  | 49 |  | (20) |  | (3) |  | — |  | — |  | 87 |
Short-term investments | 25 |  | — |  | — |  | 145 |  | (72) |  | — |  | — |  | — |  | 98 |
Total Assets | $ | 2,487 |  | $ | (10) |  | $ | (5) |  | $ | 2,201 |  | $ | (514) |  | $ | (196) |  | $ | 48 |  | $ | (1,019) |  | $ | 2,992 |
Fair Value Rollforwards for Financial Instruments Classified as Level 3 for the Year Ended December 31, 2023 |
| Total realized/unrealized gains (losses) |  |  |  |  |  |  |
|  | Fair value as of January 1, 2023 | Included in net income [1] | Included in OCI [2] | Purchases | Settlements | Sales | Transfers into Level 3 [3] | Transfers out of Level 3 [3] | Fair value as of December 31, 2023 |
Assets |  |  |  |  |  |  |  |  |  |
Fixed maturities, AFS |  |  |  |  |  |  |  |  |  |
| ABS | $ | 30 |  | $ | — |  | $ | — |  | $ | 82 |  | $ | — |  | $ | — |  | $ | — |  | $ | (112) |  | $ | — |  |
| CLOs | 115 |  | — |  | — |  | 102 |  | (49) |  | — |  | — |  | (55) |  | 113 |  |
| CMBS | 222 |  | (2) |  | 3 |  | 6 |  | (18) |  | (5) |  | 21 |  | — |  | 227 |  |
| Corporate | 1,589 |  | (5) |  | 71 |  | 458 |  | (196) |  | (11) |  | 50 |  | (95) |  | 1,861 |  |
| RMBS | 95 |  | — |  | — |  | 40 |  | (29) |  | — |  | — |  | (70) |  | 36 |  |
Total fixed maturities, AFS | 2,051 |  | (7) |  | 74 |  | 688 |  | (292) |  | (16) |  | 71 |  | (332) |  | 2,237 |  |
FVO securities | 178 |  | (1) |  | — |  | — |  | (10) |  | — |  | — |  | — |  | 167 |  |
Equity securities, at fair value | 61 |  | (1) |  | — |  | 1 |  | (3) |  | — |  | — |  | — |  | 58 |  |
Short-term investments | 193 |  | — |  | — |  | 48 |  | (216) |  | — |  | — |  | — |  | 25 |  |
Total Assets | $ | 2,483 |  | $ | (9) |  | $ | 74 |  | $ | 737 |  | $ | (521) |  | $ | (16) |  | $ | 71 |  | $ | (332) |  | $ | 2,487 |  |
[1]Amounts in these columns are generally reported in net realized gains (losses). All amounts are before income taxes. [2]All amounts are before income taxes. [3]Transfers into and/or (out of) Level 3 are primarily attributable to the availability of market observable information and the re-evaluation of the observability of pricing inputs.
Changes in Unrealized Gains (Losses) for Financial Instruments Classified as Level 3 Still Held at Year End
|  | December 31, 2024 |  | December 31, 2023
|  | Changes in Unrealized Gain/(Loss) included in Net Income [1] [2] | Changes in Unrealized Gain/(Loss) included in OCI [3] |  | Changes in Unrealized Gain/(Loss) included in Net Income [1] [2] | Changes in Unrealized Gain/(Loss) included in OCI [3]
Assets |  |  |  |  |
Fixed maturities, AFS |  |  |  |  |
| CLOs | $ | — |  | $ | — |  |  | $ | — |  | $ | 1 |
| CMBS | — |  | 10 |  |  | — |  | 2 |
| Corporate | — |  | (26) |  |  | (6) |  | 71 |
Total fixed maturities, AFS | — |  | (16) |  |  | (6) |  | 74 |
FVO securities | (7) |  | — |  |  | (1) |  | — |
Equity securities, at fair value | — |  | — |  |  | (1) |  | — |
Total Assets | $ | (7) |  | $ | (16) |  |  | $ | (8) |  | $ | 74 |
[1]All amounts in these rows are reported in net realized gains (losses). All amounts are before income taxes. [2]Amounts presented are for Level 3 only and therefore may not agree to other disclosures included herein. [3]Changes in unrealized gains (losses) on fixed maturities, AFS are reported in changes in net unrealized gain (loss) on fixed maturities in the Consolidated Statements of Comprehensive Income (Loss).
Schedule of Carrying Values and Estimated Fair Values of Debt Instruments | Financial Assets and Liabilities Not Carried at Fair Value
| December 31, 2024 |  | December 31, 2023
| Fair Value Hierarchy Level | Carrying Amount [1] | Fair Value |  | Fair Value Hierarchy Level | Carrying Amount [1] | Fair Value
Assets |  |  |  |  |  |  |
Mortgage loans | Level 3 | $ | 6,396 |  | $ | 5,901 |  |  | Level 3 | $ | 6,087 |  | $ | 5,584 |
Liabilities |  |  |  |  |  |  |
Other policyholder funds and benefits payable | Level 3 | $ | 614 |  | $ | 614 |  |  | Level 3 | $ | 638 |  | $ | 639 |
Senior notes [2] | Level 2 | $ | 3,867 |  | $ | 3,406 |  |  | Level 2 | $ | 3,863 |  | $ | 3,533 |
Junior subordinated debentures [2] | Level 2 | $ | 499 |  | $ | 460 |  |  | Level 2 | $ | 499 |  | $ | 429 |
[1]As of December 31, 2024 and December 31, 2023, the carrying amount of mortgage loans is net of ACL of $44 and $51, respectively [2]Included in long-term debt in the Consolidated Balance Sheets, except for any current maturities, which are included in short-term debt when applicable.

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- Definition Tabular disclosure of input and valuation technique used to measure fair value and change in valuation approach and technique for each separate class of asset and liability measured on recurring and nonrecurring basis. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 103 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-103 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
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- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
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