v3.25.3
Long-duration Contracts - Schedule of Reconciliation of Interest Sensitive Contract Liabilities (Details) - USD ($)
$ in Millions
Sep. 30, 2025
Sep. 30, 2024
Liability for Future Policy Benefit, Activity [Line Items]    
Interest sensitive contract liabilities $ 309,737 $ 245,436
Traditional Deferred Annuities    
Liability for Future Policy Benefit, Activity [Line Items]    
Interest sensitive contract liabilities 106,173 82,348
Indexed Annuities    
Liability for Future Policy Benefit, Activity [Line Items]    
Interest sensitive contract liabilities 103,655 96,772
Funding Agreements    
Liability for Future Policy Benefit, Activity [Line Items]    
Interest sensitive contract liabilities 83,607 50,397
Other Investment-type and other    
Liability for Future Policy Benefit, Activity [Line Items]    
Interest sensitive contract liabilities 9,069 8,348
Reconciling items    
Liability for Future Policy Benefit, Activity [Line Items]    
Interest sensitive contract liabilities $ 7,233 $ 7,571