v3.26.1
Long-duration Contracts - Schedule of Reconciliation of Future Policy Benefit and Premiums and Interest Expense (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Liability for Future Policy Benefit, Activity [Line Items]    
Future policy benefits $ 48,657 $ 49,897
Total premiums 217 127
Total interest expense 462 454
Payout annuities with life contingencies    
Liability for Future Policy Benefit, Activity [Line Items]    
Future policy benefits 40,715 42,218
Total premiums 119 70
Total interest expense 433 442
Whole life    
Liability for Future Policy Benefit, Activity [Line Items]    
Future policy benefits 2,322 1,890
Total premiums 91 51
Total interest expense 29 12
Reconciling items    
Liability for Future Policy Benefit, Activity [Line Items]    
Future policy benefits 5,620 5,789
Total premiums $ 7 $ 6