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Fair Value of Financial Instruments - Fair Value of Assets and Liabilities on a Recurring Basis (Details) - USD ($) $ in Millions | Jun. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | $ 282,213 | $ 269,878
Liabilities | (20,446) | (16,962)
Corporate bonds |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 67,313 | 69,657
U.S. government bonds |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 389 | 393
State and municipal bonds |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 2,564 | 2,790
Foreign government bonds |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 260 | 283
RMBS |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 1,795 | 1,773
CMBS |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 1,542 | 1,424
ABS |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 13,072 | 12,171
Hybrid and redeemable preferred securities |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 239 | 247
Trading securities |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 2,201 | 2,359
Equity securities |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 295 | 306
Mortgage loans on real estate |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 258 | 288
Derivative investments |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 15,658 | 11,496
Other investments – short-term investments |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 230 | 233
Cash and invested cash |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 5,475 | 3,365
MRB assets |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 4,754 | 3,894
Ceded MRBs |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 2 | 2
Liabilities | (344) | (239)
RILA, fixed indexed annuity and IUL contracts |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 967 | 940
Liabilities | (11,417) | (9,077)
Separate account assets |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 165,199 | 158,257
Reinsurance-related embedded derivatives |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Liabilities | (155) | (552)
MRB liabilities |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Liabilities | (1,275) | (1,716)
Derivative liabilities |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Liabilities | (7,255) | (5,378)
Quoted Prices in Active Markets for Identical Assets (Level 1) |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 816 | 823
Liabilities | 0 | 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Corporate bonds |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 0 | 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S. government bonds |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 369 | 374
Quoted Prices in Active Markets for Identical Assets (Level 1) | State and municipal bonds |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 0 | 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Foreign government bonds |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 0 | 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | RMBS |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 0 | 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | CMBS |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 0 | 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | ABS |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 0 | 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Hybrid and redeemable preferred securities |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 48 | 46
Quoted Prices in Active Markets for Identical Assets (Level 1) | Trading securities |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 0 | 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Equity securities |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 2 | 1
Quoted Prices in Active Markets for Identical Assets (Level 1) | Mortgage loans on real estate |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 0 | 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Derivative investments |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 0 | 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Other investments – short-term investments |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 0 | 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Cash and invested cash |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 0 | 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | MRB assets |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 0 | 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Ceded MRBs |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 0 | 0
Liabilities | 0 | 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | RILA, fixed indexed annuity and IUL contracts |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 0 | 0
Liabilities | 0 | 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Separate account assets |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 397 | 402
Quoted Prices in Active Markets for Identical Assets (Level 1) | Reinsurance-related embedded derivatives |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Liabilities | 0 | 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | MRB liabilities |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Liabilities | 0 | 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Derivative liabilities |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Liabilities | 0 | 0
Significant Observable Inputs (Level 2) |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 269,649 | 258,928
Liabilities | (6,411) | (4,555)
Significant Observable Inputs (Level 2) | Corporate bonds |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 64,732 | 67,160
Significant Observable Inputs (Level 2) | U.S. government bonds |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 20 | 19
Significant Observable Inputs (Level 2) | State and municipal bonds |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 2,564 | 2,785
Significant Observable Inputs (Level 2) | Foreign government bonds |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 260 | 283
Significant Observable Inputs (Level 2) | RMBS |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 1,777 | 1,760
Significant Observable Inputs (Level 2) | CMBS |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 1,519 | 1,416
Significant Observable Inputs (Level 2) | ABS |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 11,075 | 10,687
Significant Observable Inputs (Level 2) | Hybrid and redeemable preferred securities |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 141 | 153
Significant Observable Inputs (Level 2) | Trading securities |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 1,928 | 2,075
Significant Observable Inputs (Level 2) | Equity securities |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 255 | 263
Significant Observable Inputs (Level 2) | Mortgage loans on real estate |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 0 | 0
Significant Observable Inputs (Level 2) | Derivative investments |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 14,871 | 10,874
Significant Observable Inputs (Level 2) | Other investments – short-term investments |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 230 | 233
Significant Observable Inputs (Level 2) | Cash and invested cash |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 5,475 | 3,365
Significant Observable Inputs (Level 2) | MRB assets |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 0 | 0
Significant Observable Inputs (Level 2) | Ceded MRBs |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 0 | 0
Liabilities | 0 | 0
Significant Observable Inputs (Level 2) | RILA, fixed indexed annuity and IUL contracts |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 0 | 0
Liabilities | 0 | 0
Significant Observable Inputs (Level 2) | Separate account assets |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 164,802 | 157,855
Significant Observable Inputs (Level 2) | Reinsurance-related embedded derivatives |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Liabilities | 49 | 237
Significant Observable Inputs (Level 2) | MRB liabilities |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Liabilities | 0 | 0
Significant Observable Inputs (Level 2) | Derivative liabilities |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Liabilities | (6,460) | (4,792)
Significant Unobservable Inputs (Level 3) |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 11,748 | 10,127
Liabilities | (14,035) | (12,407)
Significant Unobservable Inputs (Level 3) | Corporate bonds |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 2,581 | 2,497
Significant Unobservable Inputs (Level 3) | U.S. government bonds |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 0 | 0
Significant Unobservable Inputs (Level 3) | State and municipal bonds |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 0 | 5
Significant Unobservable Inputs (Level 3) | Foreign government bonds |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 0 | 0
Significant Unobservable Inputs (Level 3) | RMBS |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 18 | 13
Significant Unobservable Inputs (Level 3) | CMBS |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 23 | 8
Significant Unobservable Inputs (Level 3) | ABS |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 1,997 | 1,484
Significant Unobservable Inputs (Level 3) | Hybrid and redeemable preferred securities |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 50 | 48
Significant Unobservable Inputs (Level 3) | Trading securities |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 273 | 284
Significant Unobservable Inputs (Level 3) | Equity securities |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 38 | 42
Significant Unobservable Inputs (Level 3) | Mortgage loans on real estate |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 258 | 288
Significant Unobservable Inputs (Level 3) | Derivative investments |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 787 | 622
Significant Unobservable Inputs (Level 3) | Other investments – short-term investments |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 0 | 0
Significant Unobservable Inputs (Level 3) | Cash and invested cash |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 0 | 0
Significant Unobservable Inputs (Level 3) | MRB assets |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 4,754 | 3,894
Significant Unobservable Inputs (Level 3) | Ceded MRBs |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 2 | 2
Liabilities | (344) | (239)
Significant Unobservable Inputs (Level 3) | RILA, fixed indexed annuity and IUL contracts |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 967 | 940
Liabilities | (11,417) | (9,077)
Significant Unobservable Inputs (Level 3) | Separate account assets |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Assets | 0 | 0
Significant Unobservable Inputs (Level 3) | Reinsurance-related embedded derivatives |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Liabilities | (204) | (789)
Significant Unobservable Inputs (Level 3) | MRB liabilities |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Liabilities | (1,275) | (1,716)
Significant Unobservable Inputs (Level 3) | Derivative liabilities |  |
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |  |
Liabilities | $ (795) | $ (586)

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