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DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGING ACTIVITIES - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Dec. 31, 2023
Derivative [Line Items]      
Proportion of intercompany balance sheet exposure (as a percent) 100.00%    
Pre-tax portion of the fair value of currency exchange contracts, gain $ 19,292   $ 19,036
Cash flow hedge gain (loss) to be reclassified within the next twelve months 5    
Non-derivative net investment hedge      
Derivative [Line Items]      
Foreign currency note payable, noncurrent, after-tax 3,068   $ 3,140
Net Investment Hedging | Currency exchange contracts | Derivatives designated as hedges | Accumulated Foreign Currency Adjustment Attributable to Parent [Member]      
Derivative [Line Items]      
Pre-tax portion of the fair value of currency exchange contracts, gain 19    
Net Investment Hedging | Currency exchange contracts | Derivatives designated as hedges | Interest expense - net      
Derivative [Line Items]      
Amount excluded from effectiveness testing 3 $ 5  
Net Investment Hedging | Forward starting floating-to-fixed interest rate swaps | Derivatives designated as hedges | Accumulated Foreign Currency Adjustment Attributable to Parent [Member]      
Derivative [Line Items]      
Pre-tax portion of the fair value of currency exchange contracts, gain $ 3