v3.26.1
Market Risk Benefits Rollforward (Details) - USD ($)
$ in Millions
 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jan. 01, 2025
Market Risk Benefit [Line Items]      
Beginning balance $ 1,944    
Transfer 1,785    
Ending balance 1,785    
Variable Annuity      
Market Risk Benefit [Line Items]      
Transfer 1,676 $ 2,051  
Attributed fees collected 120 131  
Benefit payments (49) (45)  
Effect of changes in interest rates (98) 43  
Effect of changes in capital markets (254) (178)  
Effect of changes in equity index volatility 43 (1)  
Actual policyholder behavior different from expected behavior 109 110  
Effect of foreign currency translation and other, net 19 95  
Effect of changes in risk margin (29) (2)  
Balance, end of period, before the cumulative effect of changes in the instrument-specific credit risk 1,603 1,988  
Cumulative effect of changes in the instrument-specific credit risk 73 63  
Ending balance 1,676 2,051  
Less: Reinsurance recoverable 209 0  
Balance, end of period, net of reinsurance 1,467 2,051  
Variable Annuity | Previously Reported      
Market Risk Benefit [Line Items]      
Beginning balance 1,827 2,069  
Transfer      
Balance, beginning of period, before effect of cumulative changes in the instrument-specific credit risk 1,742 2,026  
Variable Annuity | Reclassification, Segmentation Basis Change      
Market Risk Benefit [Line Items]      
Transfer     $ 165
Balance, beginning of period, before effect of cumulative changes in the instrument-specific credit risk 0 (191)  
Variable Annuity | In the event of death      
Market Risk Benefit [Line Items]      
Net amount at risk $ 2,114 $ 2,413  
Average attained age of policyholders 73 years 72 years  
Variable Annuity | At annuitization or exercise of other living benefits      
Market Risk Benefit [Line Items]      
Net amount at risk $ 694 $ 680  
Average attained age of policyholders 72 years 71 years  
Insurance, Other      
Market Risk Benefit [Line Items]      
Beginning balance $ 117 $ 24  
Transfer 109 174  
Balance, beginning of period, before effect of cumulative changes in the instrument-specific credit risk 138 29  
Attributed fees collected 7 8  
Effect of changes in interest rates (3) (18)  
Effect of changes in capital markets (16) (16)  
Effect of changes in equity index volatility 11 (1)  
Actual policyholder behavior different from expected behavior 2 (2)  
Effect of foreign currency translation and other, net (3) 12  
Effect of changes in risk margin (1) 0  
Balance, end of period, before the cumulative effect of changes in the instrument-specific credit risk 135 203  
Cumulative effect of changes in the instrument-specific credit risk (26) (29)  
Ending balance 109 174  
Insurance, Other | Reclassification, Segmentation Basis Change      
Market Risk Benefit [Line Items]      
Balance, beginning of period, before effect of cumulative changes in the instrument-specific credit risk $ 0 $ 191