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
Mar. 31, 2024
Dec. 31, 2023
Derivatives, Fair Value [Line Items]    
Notional Value $ 41,692 $ 38,192
Asset derivatives included in accrued income and other assets    
Total contracts 1,740 1,723
Liability derivatives included in accrued expenses and other liabilities    
Total contracts 1,626 1,421
Accrued income and other assets    
Asset derivatives included in accrued income and other assets    
Total contracts 1,740 1,723
Accrued expenses and other liabilities    
Liability derivatives included in accrued expenses and other liabilities    
Total contracts 1,626 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 842 868
Interest rate contracts | Accrued expenses and other liabilities    
Liability derivatives included in accrued expenses and other liabilities    
Interest rate contracts designated as hedging instruments 704 519
Foreign exchange contracts | Accrued income and other assets    
Asset derivatives included in accrued income and other assets    
Interest rate contracts designated as hedging instruments 0 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 2 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 2 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 41,517 38,017
Derivatives designated as Hedging Instruments | Foreign exchange contracts | Accrued income and other assets    
Derivatives, Fair Value [Line Items]    
Notional Value 230 222
Derivatives not designated as Hedging Instruments | Accrued income and other assets    
Derivatives, Fair Value [Line Items]    
Notional Value 90,476 86,843
Derivatives not designated as Hedging Instruments | Interest rate contracts | Accrued income and other assets    
Derivatives, Fair Value [Line Items]    
Notional Value 42,315 41,526
Asset derivatives included in accrued income and other assets    
Interest rate contracts not designated as hedging instruments 798 718
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 838 757
Derivatives not designated as Hedging Instruments | Foreign exchange contracts | Accrued income and other assets    
Derivatives, Fair Value [Line Items]    
Notional Value 4,640 5,257
Asset derivatives included in accrued income and other assets    
Foreign exchange contracts not designated as hedging instruments 47 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 34 76
Derivatives not designated as Hedging Instruments | Commodities contracts | Accrued income and other assets    
Derivatives, Fair Value [Line Items]    
Notional Value 608 681
Asset derivatives included in accrued income and other assets    
Commodities contracts not designated as hedging instruments 47 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 46 60
Derivatives not designated as Hedging Instruments | Equity contracts | Accrued income and other assets    
Derivatives, Fair Value [Line Items]    
Notional Value 820 759
Asset derivatives included in accrued income and other assets    
Derivative instruments not designated as hedging instruments, asset 4 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 2 7
Derivatives not designated as Hedging Instruments | Credit contracts | Accrued income and other assets    
Derivatives, Fair Value [Line Items]    
Notional Value $ 346 $ 381