v3.26.1
Market Risk Benefits - Schedule of Rollforward of the Net MRB (Assets) Liabilities for Variable Annuities (Details) - USD ($)
$ in Millions
 3 Months Ended 12 Months Ended
Mar. 31, 2026
Dec. 31, 2025
Market Risk Benefit [Roll Forward]    
Net MRB balance, beginning of period $ (4,113)  
Net MRB balance, end of period, gross (2,730) $ (4,113)
Reinsurance recoverable on market risk benefits at fair value, end of period (121) (118)
Variable annuity    
Market Risk Benefit [Roll Forward]    
Net MRB balance, beginning of period (4,265) (5,176)
Beginning of period cumulative effect of changes in non-performance risk (17) 314
Net MRB balance, beginning of period, before effect of changes in non-performance risk (4,282) (4,862)
Effect of changes in interest rates (407) (72)
Effect of fund performance 671 (3,518)
Effect of changes in equity index volatility 551 509
Effect of expected policyholder behavior 215 758
Effect of actual policyholder behavior different from expected 110 572
Effect of time 508 1,957
Effect of changes in assumptions 3 374
Net MRB balance, end of period, before effect of changes in non-performance risk (2,631) (4,282)
End of period cumulative effect of changes in non-performance risk (303) 17
Net MRB balance, end of period, gross (2,934) (4,265)
Reinsurance recoverable on market risk benefits at fair value, end of period (43) (41)
Net MRB balance, end of period, net of reinsurance $ (2,977) $ (4,306)
Weighted average attained age (years) 71 years 70 years
Net amount at risk $ 7,193 $ 5,471