v3.26.1
Fair Value (Unobservable Input Reconciliation) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Net Derivatives        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period $ (10) $ 0 $ (8) $ (3)
Changes in unrealized gains (losses) included in AOCI for the instruments still held at end of period 0 0 0 0
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]        
Balance, beginning of period 1 0 (1) 3
Total realized/unrealized gains (losses) included in net income (loss) (10) 0 (8) (3)
Total realized/unrealized gains (losses) included in AOCI 0 0 0 0
Purchases 0 0 0 0
Sales 0 0 0 0
Issuances 0 0 0 0
Settlements 0 0 0 0
Transfers into Level 3 0 0 0 0
Transfers out of Level 3 0 0 0 0
Balance, end of period (9) 0 (9) 0
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period (10) 0 (8) (3)
Changes in unrealized gains (losses) included in AOCI for the instruments still held at end of period 0 0 0 0
Net Embedded Derivatives        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period (158) (34) 55 (227)
Changes in unrealized gains (losses) included in AOCI for the instruments still held at end of period 0 0 0 0
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]        
Balance, beginning of period 342 262 219 457
Total realized/unrealized gains (losses) included in net income (loss) (158) (35) 55 (228)
Total realized/unrealized gains (losses) included in AOCI 0 0 0 0
Purchases 0 0 0 0
Sales 0 0 0 0
Issuances (140) 0 (232) 0
Settlements 5 158 7 156
Transfers into Level 3 0 0 0 0
Transfers out of Level 3 0 0 0 0
Balance, end of period 49 385 49 385
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period (158) (34) 55 (227)
Changes in unrealized gains (losses) included in AOCI for the instruments still held at end of period 0 0 0 0
Corporate fixed maturity securities        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Balance, beginning of period 17,147 15,469 16,574 15,091
Total realized/unrealized gains (losses) included in net income (loss) (1) (22) 0 (42)
Total realized/unrealized gains (losses) included in AOCI 108 519 (196) 758
Purchases 1,349 525 2,499 922
Sales (788) (338) (1,183) (707)
Issuances 0 0 0 0
Settlements 0 0 0 0
Transfers into Level 3 38 93 69 54
Transfers out of Level 3 (276) (483) (186) (313)
Balance, end of period 17,577 15,763 17,577 15,763
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period 7 (22) 3 (25)
Changes in unrealized gains (losses) included in AOCI for the instruments still held at end of period 104 516 (201) 735
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]        
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period 7 (22) 3 (25)
Changes in unrealized gains (losses) included in AOCI for the instruments still held at end of period 104 516 (201) 735
Structured Products        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Balance, beginning of period 2,687 3,011 2,052 5,590
Total realized/unrealized gains (losses) included in net income (loss) 6 4 1 7
Total realized/unrealized gains (losses) included in AOCI (12) 2 (20) (92)
Purchases 580 272 690 618
Sales (29) (134) (147) (232)
Issuances 0 0 0 0
Settlements 0 0 0 0
Transfers into Level 3 72 154 106 136
Transfers out of Level 3 (1,215) (1,050) (593) (3,768)
Balance, end of period 2,089 2,259 2,089 2,259
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period 6 5 0 9
Changes in unrealized gains (losses) included in AOCI for the instruments still held at end of period (5) 2 (13) 15
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]        
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period 6 5 0 9
Changes in unrealized gains (losses) included in AOCI for the instruments still held at end of period (5) 2 (13) 15
Foreign government        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Balance, beginning of period 19 14 15 12
Total realized/unrealized gains (losses) included in net income (loss) 0 0 0 0
Total realized/unrealized gains (losses) included in AOCI 1 1 0 4
Purchases (1) 0 0 1
Sales (4) 0 0 (1)
Issuances 0 0 0 0
Settlements 0 0 0 0
Transfers into Level 3 0 0 0 0
Transfers out of Level 3 0 0 0 (1)
Balance, end of period 15 15 15 15
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period 0 0 0 0
Changes in unrealized gains (losses) included in AOCI for the instruments still held at end of period 0 1 0 4
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]        
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period 0 0 0 0
Changes in unrealized gains (losses) included in AOCI for the instruments still held at end of period 0 1 0 4
Short-term Investments        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Balance, beginning of period 35 0 34 1
Total realized/unrealized gains (losses) included in net income (loss) 0 0 0 0
Total realized/unrealized gains (losses) included in AOCI 0 0 (3) 0
Purchases 12 3 22 3
Sales (4) 0 (4) (1)
Issuances 0 0 0 0
Settlements 0 0 0 0
Transfers into Level 3 0 0 0 0
Transfers out of Level 3 0 0 (6) 0
Balance, end of period 43 3 43 3
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period 0 0 0 0
Changes in unrealized gains (losses) included in AOCI for the instruments still held at end of period 0 0 0 0
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]        
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period 0 0 0 0
Changes in unrealized gains (losses) included in AOCI for the instruments still held at end of period 0 0 0 0
Other Investments        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Balance, beginning of period 1,459 1,348 1,459 1,371
Total realized/unrealized gains (losses) included in net income (loss) 217 86 95 52
Total realized/unrealized gains (losses) included in AOCI 0 0 0 0
Purchases 63 10 84 22
Sales (64) (26) (8) (27)
Issuances 0 0 0 0
Settlements 0 0 0 0
Transfers into Level 3 38 21 59 21
Transfers out of Level 3 (30) 0 (6) 0
Balance, end of period 1,683 1,439 1,683 1,439
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period 188 89 77 60
Changes in unrealized gains (losses) included in AOCI for the instruments still held at end of period 0 0 0 0
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]        
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period 188 89 77 60
Changes in unrealized gains (losses) included in AOCI for the instruments still held at end of period 0 0 0 0
Separate Accounts        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Balance, beginning of period 792 857 866 859
Total realized/unrealized gains (losses) included in net income (loss) 1 (19) (9) (15)
Total realized/unrealized gains (losses) included in AOCI 0 0 0 0
Purchases 15 95 34 101
Sales (39) (41) (93) (48)
Issuances 0 0 0 0
Settlements 0 0 0 0
Transfers into Level 3 0 1 1 1
Transfers out of Level 3 0 (5) (30) (10)
Balance, end of period 769 888 769 888
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period 0 0 0 0
Changes in unrealized gains (losses) included in AOCI for the instruments still held at end of period 0 0 0 0
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]        
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period 0 0 0 0
Changes in unrealized gains (losses) included in AOCI for the instruments still held at end of period 0 0 0 0
Notes Issued by Consolidated VIE        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Balance, beginning of period (801) 0 0 0
Total realized/unrealized gains (losses) included in net income (loss) (2) 0 (2) 0
Total realized/unrealized gains (losses) included in AOCI 0 0 0 0
Purchases 0 0 (801) 0
Sales 0 0 0 0
Issuances 0 0 0 0
Settlements 12 0 12 0
Transfers into Level 3 0 0 0 0
Transfers out of Level 3 0 0 0 0
Balance, end of period (791) 0 (791) 0
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period 0 0 0 0
Changes in unrealized gains (losses) included in AOCI for the instruments still held at end of period 0 0 0 0
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]        
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period 0 0 0 0
Changes in unrealized gains (losses) included in AOCI for the instruments still held at end of period $ 0 $ 0 $ 0 $ 0