v3.26.1
Market Risk Benefits (Instrument Specific Credit Risk) (Details) - USD ($)
$ in Millions
Mar. 31, 2026
Mar. 31, 2025
Market Risk Benefit [Line Items]    
Market Risk Benefit, after Increase (Decrease) from Instrument-Specific Credit Risk $ (234) $ (230)
Market Risk Benefit, Asset, Amount [1] 15 13
Market Risk Benefit, Liability, Amount 249 243
Insurance, Other | Americas [Member] | US Financial Solutions Segment    
Market Risk Benefit [Line Items]    
Market Risk Benefit, after Increase (Decrease) from Instrument-Specific Credit Risk (234) (230)
Market Risk Benefit, Asset, Amount [1] 15 13
Market Risk Benefit, Liability, Amount $ 249 $ 243
[1] Included in Other assets.