v3.26.1
Long-duration Contracts - Premium Reconciliation (Details) - USD ($)
$ in Millions
 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Liability for Future Policy Benefit, Activity [Line Items]    
Total $ 387 $ 234
Future policy benefit, interest expense 920 904
Payout annuities with life contingencies    
Liability for Future Policy Benefit, Activity [Line Items]    
Total 199 122
Future policy benefit, interest expense 861 879
Reconciling items    
Liability for Future Policy Benefit, Activity [Line Items]    
Total 11 11
Future policy benefit, interest expense 0 0
Whole Life Insurance    
Liability for Future Policy Benefit, Activity [Line Items]    
Total 177 101
Future policy benefit, interest expense $ 59 $ 25