v3.26.1
Derivative Instruments - Impact on Statements of Income, Risk Management Derivatives (Details) - Risk Management Activities - Not designated as hedges - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Derivative Instruments, Gain (Loss) [Line Items]        
Derivatives gains/(losses) recorded in income $ (295) $ (142) $ (161) $ (107)
Interest rate        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivatives gains/(losses) recorded in income (11) (45) 93 11
Credit        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivatives gains/(losses) recorded in income (276) (174) (256) (234)
Foreign exchange        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivatives gains/(losses) recorded in income 17 67 8 108
Equity        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivatives gains/(losses) recorded in income $ (25) $ 10 $ (6) $ 8