Quarterly report [Sections 13 or 15(d)]

Derivatives - Derivatives Designated as Cash Flow and Net Investment Hedges (Details)

v3.25.3
Derivatives - Derivatives Designated as Cash Flow and Net Investment Hedges (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Derivative Instruments, Gain (Loss) [Line Items]        
Gains (losses) excluded from effectiveness testing and recognized in market making and similar activities $ 98 $ 72 $ 125 $ 178
Cash flow hedges        
Derivative Instruments, Gain (Loss) [Line Items]        
Gains (Losses) Recognized in Accumulated OCI on Derivatives 513 2,871 3,096 1,835
Gains (Losses) in Income Reclassified from Accumulated OCI (381) (899) (1,143) (2,282)
Interest rate risk on variable-rate portfolios | Cash flow hedges        
Derivative Instruments, Gain (Loss) [Line Items]        
Gains (Losses) Recognized in Accumulated OCI on Derivatives 513 2,863 3,095 1,808
Gains (Losses) in Income Reclassified from Accumulated OCI (384) (905) (1,154) (2,301)
Price risk on forecasted MBS purchases | Cash flow hedges        
Derivative Instruments, Gain (Loss) [Line Items]        
Gains (Losses) Recognized in Accumulated OCI on Derivatives 0 0 0 0
Gains (Losses) in Income Reclassified from Accumulated OCI (2) (2) (6) (6)
Price risk on certain compensation plans | Cash flow hedges        
Derivative Instruments, Gain (Loss) [Line Items]        
Gains (Losses) Recognized in Accumulated OCI on Derivatives 0 8 1 27
Gains (Losses) in Income Reclassified from Accumulated OCI 5 8 17 25
Foreign exchange risk | Net investment hedges        
Derivative Instruments, Gain (Loss) [Line Items]        
Gains (Losses) Recognized in Accumulated OCI on Derivatives 227 (1,100) (2,878) 292
Gains (Losses) in Income Reclassified from Accumulated OCI $ 0 $ (140) $ 0 $ (140)