RISK MANAGEMENT AND DERIVATIVES - FV of Derivative Instruments Included within Consolidated Balance Sheet (Details) - USD ($) $ in Millions	Nov. 30, 2024	May 31, 2024
Derivatives, Fair Value [Line Items]
DERIVATIVE ASSETS	$ 593	$ 343
DERIVATIVE LIABILITIES	106	151
Derivatives formally designated as hedging instruments
Derivatives, Fair Value [Line Items]
DERIVATIVE ASSETS	588	313
DERIVATIVE LIABILITIES	84	146
Derivatives not designated as hedging instruments
Derivatives, Fair Value [Line Items]
DERIVATIVE ASSETS	5	30
DERIVATIVE LIABILITIES	22	5
Prepaid expenses and other current assets | Foreign exchange forwards and options | Derivatives formally designated as hedging instruments
Derivatives, Fair Value [Line Items]
DERIVATIVE ASSETS	429	269
Prepaid expenses and other current assets | Foreign exchange forwards and options | Derivatives not designated as hedging instruments
Derivatives, Fair Value [Line Items]
DERIVATIVE ASSETS	5	30
Deferred income taxes and other assets | Foreign exchange forwards and options | Derivatives formally designated as hedging instruments
Derivatives, Fair Value [Line Items]
DERIVATIVE ASSETS	123	44
Deferred income taxes and other assets | Interest rate swaps | Derivatives formally designated as hedging instruments
Derivatives, Fair Value [Line Items]
DERIVATIVE ASSETS	36	0
Accrued liabilities | Foreign exchange forwards and options | Derivatives formally designated as hedging instruments
Derivatives, Fair Value [Line Items]
DERIVATIVE LIABILITIES	77	110
Accrued liabilities | Foreign exchange forwards and options | Derivatives not designated as hedging instruments
Derivatives, Fair Value [Line Items]
DERIVATIVE LIABILITIES	22	5
Deferred income taxes and other liabilities | Foreign exchange forwards and options | Derivatives formally designated as hedging instruments
Derivatives, Fair Value [Line Items]
DERIVATIVE LIABILITIES	7	5
Deferred income taxes and other liabilities | Interest rate swaps | Derivatives formally designated as hedging instruments
Derivatives, Fair Value [Line Items]
DERIVATIVE LIABILITIES	$ 0	$ 31