v3.25.3
Long-duration Contracts - Schedule of Reconciliation of Future Policy Benefit and Premiums and Interest Expense (Details) - USD ($)
$ in Millions
 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Liability for Future Policy Benefit, Activity [Line Items]    
Future policy benefits $ 49,006 $ 52,962
Total premiums 351 1,163
Total interest expense 1,352 1,388
Payout Annuities with Life Contingencies    
Liability for Future Policy Benefit, Activity [Line Items]    
Future policy benefits 41,909 44,705
Total premiums 190 985
Total interest expense 1,312 1,353
Whole Life    
Liability for Future Policy Benefit, Activity [Line Items]    
Future policy benefits 1,429 2,219
Total premiums 145 154
Total interest expense 40 35
Reconciling items    
Liability for Future Policy Benefit, Activity [Line Items]    
Future policy benefits 5,668 6,038
Total premiums 16 24
Total interest expense $ 0 $ 0