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
Sep. 30, 2023
Dec. 31, 2022
Derivatives, Fair Value [Line Items]    
Notional Value $ 52,587 $ 42,636
Asset derivatives included in accrued income and other assets    
Total contracts 2,387 2,164
Liability derivatives included in accrued expenses and other liabilities    
Total contracts 2,237 2,337
Accrued income and other assets    
Asset derivatives included in accrued income and other assets    
Total contracts 2,387 2,164
Accrued expenses and other liabilities    
Liability derivatives included in accrued expenses and other liabilities    
Total contracts 2,237 2,337
Interest rate contracts | Accrued income and other assets    
Asset derivatives included in accrued income and other assets    
Interest rate contracts designated as hedging instruments 1,089 1,008
Interest rate contracts | Accrued expenses and other liabilities    
Liability derivatives included in accrued expenses and other liabilities    
Interest rate contracts designated as hedging instruments 981 1,145
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 2
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
Derivatives designated as Hedging Instruments | Interest rate contracts | Accrued income and other assets    
Derivatives, Fair Value [Line Items]    
Notional Value 36,962 42,461
Derivatives designated as Hedging Instruments | Foreign exchange contracts | Accrued income and other assets    
Derivatives, Fair Value [Line Items]    
Notional Value 216 202
Derivatives not designated as Hedging Instruments | Accrued income and other assets    
Derivatives, Fair Value [Line Items]    
Notional Value 100,741 86,512
Derivatives not designated as Hedging Instruments | Interest rate contracts | Accrued income and other assets    
Derivatives, Fair Value [Line Items]    
Notional Value 57,539 37,562
Asset derivatives included in accrued income and other assets    
Interest rate contracts not designated as hedging instruments 1,182 968
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 1,135 1,008
Derivatives not designated as Hedging Instruments | Foreign exchange contracts | Accrued income and other assets    
Derivatives, Fair Value [Line Items]    
Notional Value 4,654 4,889
Asset derivatives included in accrued income and other assets    
Foreign exchange contracts not designated as hedging instruments 65 68
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 50 68
Derivatives not designated as Hedging Instruments | Commodities contracts | Accrued income and other assets    
Derivatives, Fair Value [Line Items]    
Notional Value 688 762
Asset derivatives included in accrued income and other assets    
Commodities contracts not designated as hedging instruments 51 114
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 49 113
Derivatives not designated as Hedging Instruments | Equity contracts | Accrued income and other assets    
Derivatives, Fair Value [Line Items]    
Notional Value 682 636
Asset derivatives included in accrued income and other assets    
Derivative instruments not designated as hedging instruments, asset 0 4
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 $ 22 $ 3