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Fair Value of Financial Instruments - Fair Value Measured on a Recurring Basis Reconciliation (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract] |  |  |  |
Beginning Fair Value | $ (5,766) | $ (2,701) | $ (4,458) | $ 269
Items Included in Net Income | (29) | 537 | (1,511) | (1,865)
Gains (Losses) in OCI and Other | 98 | (21) | 87 | (14)
Issuances, Sales, Maturities, Settlements, Calls, Net | 336 | 105 | 749 | (330)
Transfers Into or Out of Level 3, Net | (190) | (156) | (418) | (296)
Ending Fair Value | (5,551) | (2,236) | (5,551) | (2,236)
Corporate bonds | Fixed maturity AFS securities, at fair value |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract] |  |  |  |
Beginning Fair Value | 2,581 | 2,366 | 2,497 | 2,295
Items Included in Net Income | (1) | (4) | 1 | 1
Gains (Losses) in OCI and Other | 43 | (14) | 25 | (13)
Issuances, Sales, Maturities, Settlements, Calls, Net | 50 | 105 | 264 | 130
Transfers Into or Out of Level 3, Net | (7) | (43) | (121) | (3)
Ending Fair Value | 2,666 | 2,410 | 2,666 | 2,410
State and municipal bonds | Fixed maturity AFS securities, at fair value |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract] |  |  |  |
Beginning Fair Value |  | 36 | 5 | 35
Items Included in Net Income |  | (4) | 0 | (4)
Gains (Losses) in OCI and Other |  | 1 | 0 | 3
Issuances, Sales, Maturities, Settlements, Calls, Net |  | 0 | 0 | (1)
Transfers Into or Out of Level 3, Net |  | 0 | (5) | 0
Ending Fair Value | 0 | 33 | 0 | 33
RMBS | Fixed maturity AFS securities, at fair value |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract] |  |  |  |
Beginning Fair Value | 18 | 6 | 13 | 1
Items Included in Net Income | 0 | 0 | 0 | 0
Gains (Losses) in OCI and Other | 0 | (1) | (1) | (1)
Issuances, Sales, Maturities, Settlements, Calls, Net | 0 | 0 | 6 | 5
Transfers Into or Out of Level 3, Net | (5) | 7 | (5) | 7
Ending Fair Value | 13 | 12 | 13 | 12
CMBS | Fixed maturity AFS securities, at fair value |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract] |  |  |  |
Beginning Fair Value | 23 |  | 8 | 0
Items Included in Net Income | 0 |  | 0 | 0
Gains (Losses) in OCI and Other | 0 |  | 0 | 0
Issuances, Sales, Maturities, Settlements, Calls, Net | 14 |  | 29 | (4)
Transfers Into or Out of Level 3, Net | (16) |  | (16) | 4
Ending Fair Value | 21 | 0 | 21 | 0
ABS | Fixed maturity AFS securities, at fair value |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract] |  |  |  |
Beginning Fair Value | 1,997 | 1,208 | 1,484 | 1,117
Items Included in Net Income | 0 | 0 | 0 | 0
Gains (Losses) in OCI and Other | 50 | (5) | 55 | (3)
Issuances, Sales, Maturities, Settlements, Calls, Net | 232 | 247 | 798 | 567
Transfers Into or Out of Level 3, Net | (178) | (113) | (236) | (344)
Ending Fair Value | 2,101 | 1,337 | 2,101 | 1,337
Hybrid and redeemable preferred securities | Fixed maturity AFS securities, at fair value |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract] |  |  |  |
Beginning Fair Value | 50 | 60 | 48 | 49
Items Included in Net Income | 0 | 0 | 0 | 0
Gains (Losses) in OCI and Other | 1 | 1 | 3 | (2)
Issuances, Sales, Maturities, Settlements, Calls, Net | 16 | 0 | 16 | (2)
Transfers Into or Out of Level 3, Net | 10 | (13) | 10 | 3
Ending Fair Value | 77 | 48 | 77 | 48
Trading securities |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract] |  |  |  |
Beginning Fair Value | 273 | 351 | 284 | 581
Items Included in Net Income | 7 | (3) | 7 | (1)
Gains (Losses) in OCI and Other | 0 | 0 | 0 | 0
Issuances, Sales, Maturities, Settlements, Calls, Net | (6) | (4) | (17) | (236)
Transfers Into or Out of Level 3, Net | 0 | 6 | 0 | 6
Ending Fair Value | 274 | 350 | 274 | 350
Equity securities |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract] |  |  |  |
Beginning Fair Value | 38 | 125 | 42 | 153
Items Included in Net Income | 0 | 12 | (3) | (17)
Gains (Losses) in OCI and Other | 0 | 0 | 0 | 0
Issuances, Sales, Maturities, Settlements, Calls, Net | 1 | 0 | 0 | 1
Transfers Into or Out of Level 3, Net | (4) | 0 | (4) | 0
Ending Fair Value | 35 | 137 | 35 | 137
Mortgage loans on real estate |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract] |  |  |  |
Beginning Fair Value | 258 | 404 | 288 | 487
Items Included in Net Income | 2 | 2 | 6 | 0
Gains (Losses) in OCI and Other | 4 | (3) | 5 | 2
Issuances, Sales, Maturities, Settlements, Calls, Net | (1) | (88) | (36) | (174)
Transfers Into or Out of Level 3, Net | 0 | 0 | 0 | 0
Ending Fair Value | 263 | 315 | 263 | 315
Derivative investments |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract] |  |  |  |
Beginning Fair Value | (8) | 31 | 36 | 2
Items Included in Net Income | 6 | (26) | 11 | (28)
Gains (Losses) in OCI and Other | 0 | 0 | 0 | 0
Issuances, Sales, Maturities, Settlements, Calls, Net | 1 | 8 | 3 | 8
Transfers Into or Out of Level 3, Net | 0 | 0 | (51) | 31
Ending Fair Value | (1) | 13 | (1) | 13
Other investments |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract] |  |  |  |
Beginning Fair Value | 0 |  | 0 |
Items Included in Net Income | 0 |  | 0 |
Gains (Losses) in OCI and Other | 0 |  | 0 |
Issuances, Sales, Maturities, Settlements, Calls, Net | 10 |  | 10 |
Transfers Into or Out of Level 3, Net | 10 |  | 10 |
Ending Fair Value | 20 |  | 20 |
Ceded MRBs | Other Assets |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract] |  |  |  |
Beginning Fair Value | 2 | 2 | 2 | 12
Items Included in Net Income | 0 | 0 | 0 | (10)
Gains (Losses) in OCI and Other | 0 | 0 | 0 | 0
Issuances, Sales, Maturities, Settlements, Calls, Net | 0 | 0 | 0 | 0
Transfers Into or Out of Level 3, Net | 0 | 0 | 0 | 0
Ending Fair Value | 2 | 2 | 2 | 2
Ceded MRBs | Other Liabilities |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract] |  |  |  |
Beginning Fair Value | (344) | (293) | (239) | (205)
Items Included in Net Income | 3 | (12) | (102) | (100)
Gains (Losses) in OCI and Other | 0 | 0 | 0 | 0
Issuances, Sales, Maturities, Settlements, Calls, Net | 0 | 0 | 0 | 0
Transfers Into or Out of Level 3, Net | 0 | 0 | 0 | 0
Ending Fair Value | (341) | (305) | (341) | (305)
Indexed annuity ceded embedded derivatives | Other Assets |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract] |  |  |  |
Beginning Fair Value | 967 | 603 | 940 | 525
Items Included in Net Income | 191 | (49) | 238 | (37)
Gains (Losses) in OCI and Other | 0 | 0 | 0 | 0
Issuances, Sales, Maturities, Settlements, Calls, Net | (26) | 32 | (46) | 98
Transfers Into or Out of Level 3, Net | 0 | 0 | 0 | 0
Ending Fair Value | 1,132 | 586 | 1,132 | 586
RILA, fixed indexed annuity and IUL contracts | Policyholder Account Balances |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract] |  |  |  |
Beginning Fair Value | (11,417) | (7,600) | (9,077) | (4,783)
Items Included in Net Income | (898) | 621 | (2,915) | (1,669)
Gains (Losses) in OCI and Other | 0 | 0 | 0 | 0
Issuances, Sales, Maturities, Settlements, Calls, Net | 45 | (195) | (278) | (722)
Transfers Into or Out of Level 3, Net | 0 | 0 | 0 | 0
Ending Fair Value | (12,270) | $ (7,174) | (12,270) | $ (7,174)
Reinsurance-related embedded derivatives | Other Liabilities |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract] |  |  |  |
Beginning Fair Value | (204) |  | (789) |
Items Included in Net Income | 661 |  | 1,246 |
Gains (Losses) in OCI and Other | 0 |  | 0 |
Issuances, Sales, Maturities, Settlements, Calls, Net | 0 |  | 0 |
Transfers Into or Out of Level 3, Net | 0 |  | 0 |
Ending Fair Value | $ 457 |  | $ 457 |

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- Definition Represents the net increase or decrease to the amount of certain investments for which net asset value per share is calculated (including by unit, membership interest, or other equity (ownership interest) unit measure) (alternative investments) due to purchases, sales, issuances, or settlements during the period. The alternative investments represented by this item are subject to significant unobservable inputs (Level 3) for purposes of measuring fair value. + References No definition available. + Details
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- Definition Amount of gain (loss) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 + Details
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- Definition Amount of gain (loss) recognized in other comprehensive income (OCI) from asset measured at fair value on recurring basis using unobservable input (level 3). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 + Details
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- Definition Amount of transfers of financial instrument classified as a derivative asset (liability) after deduction of derivative liability (asset) into (out of) level 3 of the fair value hierarchy. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-3 + Details
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