v3.26.3
Insurance - Schedule of Net Liability for Future Policy Benefits (Details) - USD ($)
$ in Millions
Sep. 30, 2026
Sep. 30, 2025
Term and Whole Life    
Liability for Future Policy Benefit, Activity [Line Items]    
Net liability for future policy benefits $ 164 $ 195
Deferred profit liability 12 11
Total net liability for future policy benefits 176 206
Accidental Death and Disability Protection    
Liability for Future Policy Benefit, Activity [Line Items]    
Net liability for future policy benefits 55 65
Deferred profit liability 41 45
Total net liability for future policy benefits $ 96 $ 110