RISK MANAGEMENT AND DERIVATIVES - FV of Derivative Instruments Included within Consolidated Balance Sheet (Details) - USD ($) $ in Millions	Aug. 31, 2024	May 31, 2024
Derivatives, Fair Value [Line Items]
DERIVATIVE ASSETS	$ 238	$ 343
DERIVATIVE LIABILITIES	198	151
Derivatives formally designated as hedging instruments
Derivatives, Fair Value [Line Items]
DERIVATIVE ASSETS	212	313
DERIVATIVE LIABILITIES	192	146
Derivatives not designated as hedging instruments
Derivatives, Fair Value [Line Items]
DERIVATIVE ASSETS	26	30
DERIVATIVE LIABILITIES	6	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	139	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	26	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	10	44
Deferred income taxes and other assets | Interest rate swaps | Derivatives formally designated as hedging instruments
Derivatives, Fair Value [Line Items]
DERIVATIVE ASSETS	63	0
Accrued liabilities | Foreign exchange forwards and options | Derivatives formally designated as hedging instruments
Derivatives, Fair Value [Line Items]
DERIVATIVE LIABILITIES	161	110
Accrued liabilities | Foreign exchange forwards and options | Derivatives not designated as hedging instruments
Derivatives, Fair Value [Line Items]
DERIVATIVE LIABILITIES	6	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	31	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