v3.26.1
Future Policy Benefits - Disaggregate Rollforwards (Details) - USD ($)
$ in Millions
 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]      
Net liability for FPBs $ 134,736   $ 136,432
Fixed & Immediate Annuities      
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]      
Balance, beginning of period, at current discount rate at balance sheet date 0 $ 0  
Balance, beginning of period, at original discount rate 0 0  
Effect of actual variances from expected experience (1) 9 (4)  
Adjusted balance 9 (4)  
Issuances 469 1,086  
Net premiums collected (478) (1,082)  
Ending balance at original discount rate 0 0  
Balance, end of period, at current discount rate at balance sheet date 0 0  
Balance, beginning of period, at current discount rate at balance sheet date 57,446 47,910  
Balance, beginning of period, at original discount rate 57,896 49,191  
Effect of actual variances from expected experience (1) (21) (48)  
Adjusted balance 57,875 49,143  
Issuances 471 1,094  
Interest accrual 1,423 1,228  
Benefit payments (2,694) (2,334)  
Ending balance at original discount rate 57,075 49,131  
Effect of changes in discount rate assumptions (1,042) (868)  
Balance, end of period, at current discount rate at balance sheet date 56,033 48,263  
Cumulative amount of fair value hedging adjustments (357) (282)  
Net liability for FPBs 55,676 47,981 57,127
Less: Reinsurance recoverables 4,205   0
Net liability for FPBs, net of reinsurance 51,471   47,981
Undiscounted - Expected future benefit payments 104,720 93,271  
Discounted - Expected future benefit payments (at current discount rate at balance sheet date) $ 56,033 $ 48,263 57,446
Weighted-average duration of the liability 8 years 9 years  
Weighted-average interest accretion (original locked-in) rate 5.10% 5.10%  
Weighted-average current discount rate at balance sheet date 5.60% 5.50%  
Deferred Profit Liability Offset to Actual Versus Expected   $ 33  
Long-term Care      
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]      
Balance, beginning of period, at current discount rate at balance sheet date $ 5,548 5,475  
Balance, beginning of period, at original discount rate 5,515 5,568  
Effect of actual variances from expected experience (1) 57 (3)  
Adjusted balance 5,572 5,565  
Interest accrual 141 141  
Net premiums collected (288) (280)  
Ending balance at original discount rate 5,425 5,426  
Effect of changes in discount rate assumptions (42) (6)  
Balance, end of period, at current discount rate at balance sheet date 5,383 5,420  
Balance, beginning of period, at current discount rate at balance sheet date 20,772 20,012  
Balance, beginning of period, at original discount rate 21,490 21,024  
Effect of actual variances from expected experience (1) 107 26  
Adjusted balance 21,597 21,050  
Interest accrual 566 553  
Benefit payments (498) (452)  
Ending balance at original discount rate 21,665 21,151  
Effect of changes in discount rate assumptions (937) (928)  
Balance, end of period, at current discount rate at balance sheet date 20,728 20,223  
Net liability for FPBs 15,345 14,803 15,224
Undiscounted - Expected future gross premiums 10,075 10,269  
Undiscounted - Expected future benefit payments 44,361 44,566  
Discounted - Expected future gross premiums (at current discount rate at balance sheet date) 6,745 6,870  
Discounted - Expected future benefit payments (at current discount rate at balance sheet date) $ 20,728 $ 20,223 $ 20,772
Weighted-average duration of the liability 13 years 13 years  
Weighted-average interest accretion (original locked-in) rate 5.40% 5.40%  
Weighted-average current discount rate at balance sheet date 5.80% 5.80%