v3.26.3
Market Risk Benefits (Instrument Specific Credit Risk) (Details) - USD ($)
$ in Millions
Sep. 30, 2026
Sep. 30, 2025
Market Risk Benefit [Line Items]    
Market Risk Benefit, after Increase (Decrease) from Instrument-Specific Credit Risk $ (183) $ (219)
Market Risk Benefit, Asset, Amount [1] 21 19
Market Risk Benefit, Liability, Amount 204 238
Insurance, Other | Americas [Member] | Other Segments    
Market Risk Benefit [Line Items]    
Market Risk Benefit, after Increase (Decrease) from Instrument-Specific Credit Risk (183) (219)
Market Risk Benefit, Asset, Amount [1] 21 19
Market Risk Benefit, Liability, Amount $ 204 $ 238
[1] Included in Other assets.