v3.26.1
Long-duration Contracts - Schedule of Reconciliation of Future Policy Benefit and Premiums and Interest Expense (Details) - USD ($)
$ in Millions
 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Liability for Future Policy Benefit, Activity [Line Items]    
Future policy benefits $ 48,241 $ 49,400
Total premiums 387 234
Total interest expense 920 904
Payout annuities with life contingencies    
Liability for Future Policy Benefit, Activity [Line Items]    
Future policy benefits 40,388 41,926
Total premiums 199 122
Total interest expense 861 879
Whole life    
Liability for Future Policy Benefit, Activity [Line Items]    
Future policy benefits 2,288 1,729
Total premiums 177 101
Total interest expense 59 25
Reconciling items    
Liability for Future Policy Benefit, Activity [Line Items]    
Future policy benefits 5,565 5,745
Total premiums $ 11 $ 11