v3.26.3
Future Policy Benefits - Expected future benefits, expenses, and gross premiums (Details) - USD ($)
$ in Millions
Sep. 30, 2026
Sep. 30, 2025
Individual Retirement    
Liability for Future Policy Benefit, Activity [Line Items]    
Undiscounted expected future benefits and expense $ 1,833 $ 1,856
Undiscounted expected future gross premiums 0 0
Group Retirement    
Liability for Future Policy Benefit, Activity [Line Items]    
Undiscounted expected future benefits and expense 390 418
Undiscounted expected future gross premiums 0 0
Life Insurance    
Liability for Future Policy Benefit, Activity [Line Items]    
Undiscounted expected future benefits and expense 30,316 29,720
Undiscounted expected future gross premiums 20,391 19,679
Discounted expected future gross premiums (at current discount rate) 13,057 13,474
Institutional Markets    
Liability for Future Policy Benefit, Activity [Line Items]    
Undiscounted expected future benefits and expense 53,794 51,382
Undiscounted expected future gross premiums 0 0
Corporate & Other    
Liability for Future Policy Benefit, Activity [Line Items]    
Undiscounted expected future benefits and expense 38,800 40,316
Undiscounted expected future gross premiums 1,691 1,838
Discounted expected future gross premiums (at current discount rate) $ 1,096 $ 1,263