Quarterly report pursuant to Section 13 or 15(d)

DERIVATIVE FINANCIAL INSTRUMENTS - Hedging Instruments (Details)

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DERIVATIVE FINANCIAL INSTRUMENTS - Hedging Instruments (Details) - USD ($)
$ in Millions
Jun. 30, 2024
Dec. 31, 2023
Derivatives, Fair Value [Line Items]    
Notional Value $ 44,470 $ 38,192
Asset derivatives included in accrued income and other assets    
Total contracts 1,641 1,723
Liability derivatives included in accrued expenses and other liabilities    
Total contracts 1,604 1,421
Accrued income and other assets    
Asset derivatives included in accrued income and other assets    
Total contracts 1,641 1,723
Accrued expenses and other liabilities    
Liability derivatives included in accrued expenses and other liabilities    
Total contracts 1,604 1,421
Interest rate contracts | Accrued income and other assets    
Asset derivatives included in accrued income and other assets    
Interest rate contracts designated as hedging instruments 787 868
Interest rate contracts | Accrued expenses and other liabilities    
Liability derivatives included in accrued expenses and other liabilities    
Interest rate contracts designated as hedging instruments 744 519
Foreign exchange contracts | Accrued income and other assets    
Asset derivatives included in accrued income and other assets    
Interest rate contracts designated as hedging instruments 1 6
Foreign exchange contracts | Accrued expenses and other liabilities    
Liability derivatives included in accrued expenses and other liabilities    
Interest rate contracts designated as hedging instruments 0 0
Credit contracts | Accrued income and other assets    
Asset derivatives included in accrued income and other assets    
Derivative instruments not designated as hedging instruments, asset 1 0
Credit contracts | Accrued expenses and other liabilities    
Liability derivatives included in accrued expenses and other liabilities    
Derivative instruments not designated as hedging instruments, liability 0 2
Derivatives designated as Hedging Instruments | Interest rate contracts | Accrued income and other assets    
Derivatives, Fair Value [Line Items]    
Notional Value 44,295 38,017
Derivatives designated as Hedging Instruments | Foreign exchange contracts | Accrued income and other assets    
Derivatives, Fair Value [Line Items]    
Notional Value 231 222
Derivatives not designated as Hedging Instruments | Accrued income and other assets    
Derivatives, Fair Value [Line Items]    
Notional Value 94,065 86,843
Derivatives not designated as Hedging Instruments | Interest rate contracts | Accrued income and other assets    
Derivatives, Fair Value [Line Items]    
Notional Value 42,263 41,526
Asset derivatives included in accrued income and other assets    
Interest rate contracts not designated as hedging instruments 766 718
Derivatives not designated as Hedging Instruments | Interest rate contracts | Accrued expenses and other liabilities    
Liability derivatives included in accrued expenses and other liabilities    
Interest rate contracts not designated as hedging instruments 783 757
Derivatives not designated as Hedging Instruments | Foreign exchange contracts | Accrued income and other assets    
Derivatives, Fair Value [Line Items]    
Notional Value 5,576 5,257
Asset derivatives included in accrued income and other assets    
Foreign exchange contracts not designated as hedging instruments 45 69
Derivatives not designated as Hedging Instruments | Foreign exchange contracts | Accrued expenses and other liabilities    
Liability derivatives included in accrued expenses and other liabilities    
Foreign exchange contracts not designated as hedging instruments 35 76
Derivatives not designated as Hedging Instruments | Commodities contracts | Accrued income and other assets    
Derivatives, Fair Value [Line Items]    
Notional Value 662 681
Asset derivatives included in accrued income and other assets    
Commodities contracts not designated as hedging instruments 41 62
Derivatives not designated as Hedging Instruments | Commodities contracts | Accrued expenses and other liabilities    
Liability derivatives included in accrued expenses and other liabilities    
Commodities contracts not designated as hedging instruments 38 60
Derivatives not designated as Hedging Instruments | Equity contracts | Accrued income and other assets    
Derivatives, Fair Value [Line Items]    
Notional Value 727 759
Asset derivatives included in accrued income and other assets    
Derivative instruments not designated as hedging instruments, asset 0 0
Derivatives not designated as Hedging Instruments | Equity contracts | Accrued expenses and other liabilities    
Liability derivatives included in accrued expenses and other liabilities    
Derivative instruments not designated as hedging instruments, liability 4 7
Derivatives not designated as Hedging Instruments | Credit contracts | Accrued income and other assets    
Derivatives, Fair Value [Line Items]    
Notional Value $ 311 $ 381