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Fair Value of Financial Instruments - Schedule of Investment Holdings Movements (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Fair Value Investments Entities That Calculate Net Asset Value Per Share Unobservable Input Investment Holdings Movements [Abstract] |  |  |
Issuances | $ 1,922 | $ 1,092 | $ 1,963
Sales | (417) | (511) | (338)
Maturities | (35) | (37) | (112)
Settlements | (179) | (913) | (751)
Calls | (62) | (19) | (69)
Total | 1,229 | (388) | 693
Corporate bonds | Fixed maturity AFS securities |  |  |
Fair Value Investments Entities That Calculate Net Asset Value Per Share Unobservable Input Investment Holdings Movements [Abstract] |  |  |
Issuances | 1,350 | 797 | 1,263
Sales | (301) | (149) | (100)
Maturities | (2) | (34) | (82)
Settlements | (532) | (409) | (235)
Calls | (1) | (11) | (50)
Total | 514 | 194 | 796
State and municipal bonds | Fixed maturity AFS securities |  |  |
Fair Value Investments Entities That Calculate Net Asset Value Per Share Unobservable Input Investment Holdings Movements [Abstract] |  |  |
Issuances | 0 | 0 |
Sales | 0 | (30) |
Maturities | 0 | 0 |
Settlements | 0 | 0 |
Calls | 0 | 0 |
Total | 0 | (30) | 0
Foreign government bonds | Fixed maturity AFS securities |  |  |
Fair Value Investments Entities That Calculate Net Asset Value Per Share Unobservable Input Investment Holdings Movements [Abstract] |  |  |
Issuances |  |  | 0
Sales |  |  | 0
Maturities |  |  | (30)
Settlements |  |  | 0
Calls |  |  | 0
Total |  |  | (30)
RMBS | Fixed maturity AFS securities |  |  |
Fair Value Investments Entities That Calculate Net Asset Value Per Share Unobservable Input Investment Holdings Movements [Abstract] |  |  |
Issuances | 6 | 5 | 21
Sales | 0 | 0 | 0
Maturities | 0 | 0 | 0
Settlements | 0 | 0 | 0
Calls | 0 | 0 | 0
Total | 6 | 5 | 21
CMBS | Fixed maturity AFS securities |  |  |
Fair Value Investments Entities That Calculate Net Asset Value Per Share Unobservable Input Investment Holdings Movements [Abstract] |  |  |
Issuances | 29 | 0 | 17
Sales | 0 | 0 | 0
Maturities | 0 | 0 | 0
Settlements | 0 | (4) | 0
Calls | 0 | 0 | 0
Total | 29 | (4) | 17
ABS | Fixed maturity AFS securities |  |  |
Fair Value Investments Entities That Calculate Net Asset Value Per Share Unobservable Input Investment Holdings Movements [Abstract] |  |  |
Issuances | 1,495 | 971 | 918
Sales | (82) | (2) | 0
Maturities | 0 | 0 | 0
Settlements | (319) | (230) | (235)
Calls | (57) | (6) | (7)
Total | 1,037 | 733 | 676
Hybrid and redeemable preferred securities | Fixed maturity AFS securities |  |  |
Fair Value Investments Entities That Calculate Net Asset Value Per Share Unobservable Input Investment Holdings Movements [Abstract] |  |  |
Issuances | 16 | 0 | 0
Sales | 0 | 0 | 0
Maturities | 0 | 0 | 0
Settlements | 0 | 0 | 0
Calls | (4) | (2) | (12)
Total | 12 | (2) | (12)
Trading securities |  |  |
Fair Value Investments Entities That Calculate Net Asset Value Per Share Unobservable Input Investment Holdings Movements [Abstract] |  |  |
Issuances | 6 | 0 | 287
Sales | (2) | (231) | (229)
Maturities | 0 | 0 | 0
Settlements | (24) | (82) | (210)
Calls | 0 | 0 | 0
Total | (20) | (313) | (152)
Equity securities |  |  |
Fair Value Investments Entities That Calculate Net Asset Value Per Share Unobservable Input Investment Holdings Movements [Abstract] |  |  |
Issuances | 1 | 1 | 28
Sales | (1) | (99) | (9)
Maturities | 0 | 0 | 0
Settlements | 0 | 0 | 0
Calls | 0 | 0 | 0
Total | 0 | (98) | 19
Mortgage loans on real estate |  |  |
Fair Value Investments Entities That Calculate Net Asset Value Per Share Unobservable Input Investment Holdings Movements [Abstract] |  |  |
Issuances | 1 | 5 | 15
Sales | (31) | 0 | 0
Maturities | (29) | 0 | 0
Settlements | (7) | (202) | (242)
Calls | 0 | 0 | 0
Total | (66) | (197) | (227)
Derivative liabilities |  |  |
Fair Value Investments Entities That Calculate Net Asset Value Per Share Unobservable Input Investment Holdings Movements [Abstract] |  |  |
Issuances |  | 19 |
Sales |  | 0 |
Maturities |  | (3) |
Settlements |  | 0 |
Calls |  | 0 |
Total | 3 | 16 | 0
Other investments |  |  |
Fair Value Investments Entities That Calculate Net Asset Value Per Share Unobservable Input Investment Holdings Movements [Abstract] |  |  |
Issuances | 16 |  |
Sales | 0 |  |
Maturities | (3) |  |
Settlements | 0 |  |
Calls | 0 |  |
Total | 13 |  |
Indexed annuity ceded embedded derivatives | Other assets |  |  |
Fair Value Investments Entities That Calculate Net Asset Value Per Share Unobservable Input Investment Holdings Movements [Abstract] |  |  |
Issuances | 135 | 404 | 124
Sales | 0 | 0 | 0
Maturities | 0 | 0 | 0
Settlements | (121) | 5 | 88
Calls | 0 | 0 | 0
Total | 14 | 409 | 212
RILA, fixed indexed annuity and IUL contracts | Policyholder account balances |  |  |
Fair Value Investments Entities That Calculate Net Asset Value Per Share Unobservable Input Investment Holdings Movements [Abstract] |  |  |
Issuances | (1,137) | (1,110) | (710)
Sales | 0 | 0 | 0
Maturities | 0 | 0 | 0
Settlements | 824 | 9 | 83
Calls | 0 | 0 | 0
Total | (313) | $ (1,101) | (627)
RILA, fixed indexed annuity and IUL contracts | Future contract benefits |  |  |
Fair Value Investments Entities That Calculate Net Asset Value Per Share Unobservable Input Investment Holdings Movements [Abstract] |  |  |
Total |  |  | $ (627)
Derivative liabilities |  |  |
Fair Value Investments Entities That Calculate Net Asset Value Per Share Unobservable Input Investment Holdings Movements [Abstract] |  |  |
Issuances | 4 |  |
Sales | 0 |  |
Maturities | (1) |  |
Settlements | 0 |  |
Calls | 0 |  |
Total | $ 3 |  |

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