v3.26.3
Long-duration Contracts - Premium Reconciliation (Details) - USD ($)
$ in Millions
 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Liability for Future Policy Benefit, Activity [Line Items]    
Total $ 577 $ 351
Future policy benefit, interest expense 1,373 1,352
Payout annuities with life contingencies    
Liability for Future Policy Benefit, Activity [Line Items]    
Total 304 190
Future policy benefit, interest expense 1,285 1,312
Reconciling items    
Liability for Future Policy Benefit, Activity [Line Items]    
Total 17 16
Future policy benefit, interest expense 0 0
Whole Life Insurance    
Liability for Future Policy Benefit, Activity [Line Items]    
Total 256 145
Future policy benefit, interest expense $ 88 $ 40