Quarterly report pursuant to Section 13 or 15(d)

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

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Derivatives - Derivatives Designated as Cash Flow and Net Investment Hedges (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Derivative Instruments, Gain (Loss) [Line Items]    
Gains (losses) excluded from effectiveness testing and recognized in market making and similar activities $ 66 $ 33
Cash flow hedges    
Derivative Instruments, Gain (Loss) [Line Items]    
Gains (Losses) Recognized in Accumulated OCI on Derivatives (1,076) 2,569
Gains (Losses) in Income Reclassified from Accumulated OCI (507) (155)
Interest rate risk on variable-rate portfolios | Cash flow hedges    
Derivative Instruments, Gain (Loss) [Line Items]    
Gains (Losses) Recognized in Accumulated OCI on Derivatives (1,090) 2,550
Gains (Losses) in Income Reclassified from Accumulated OCI (514) (160)
Price risk on forecasted MBS purchases | Cash flow hedges    
Derivative Instruments, Gain (Loss) [Line Items]    
Gains (Losses) Recognized in Accumulated OCI on Derivatives 0 2
Gains (Losses) in Income Reclassified from Accumulated OCI (2) 0
Price risk on certain compensation plans | Cash flow hedges    
Derivative Instruments, Gain (Loss) [Line Items]    
Gains (Losses) Recognized in Accumulated OCI on Derivatives 14 17
Gains (Losses) in Income Reclassified from Accumulated OCI 9 5
Foreign exchange risk | Net investment hedges    
Derivative Instruments, Gain (Loss) [Line Items]    
Gains (Losses) Recognized in Accumulated OCI on Derivatives 797 (377)
Gains (Losses) in Income Reclassified from Accumulated OCI $ 0 $ 0