RISK MANAGEMENT AND DERIVATIVES - FV of Derivative Instruments Included within Consolidated Balance Sheet (Details) - USD ($) $ in Millions	Aug. 31, 2025	May 31, 2025
Derivatives, Fair Value [Line Items]
DERIVATIVE ASSETS	$ 188	$ 131
DERIVATIVE LIABILITIES	518	371
Derivatives formally designated as hedging instruments
Derivatives, Fair Value [Line Items]
DERIVATIVE ASSETS	176	121
DERIVATIVE LIABILITIES	509	361
Derivatives not designated as hedging instruments
Derivatives, Fair Value [Line Items]
DERIVATIVE ASSETS	12	10
DERIVATIVE LIABILITIES	9	10
Prepaid expenses and other current assets | Foreign exchange forwards and options | Derivatives formally designated as hedging instruments
Derivatives, Fair Value [Line Items]
DERIVATIVE ASSETS	95	75
Prepaid expenses and other current assets | Foreign exchange forwards and options | Derivatives not designated as hedging instruments
Derivatives, Fair Value [Line Items]
DERIVATIVE ASSETS	12	10
Deferred income taxes and other assets | Foreign exchange forwards and options | Derivatives formally designated as hedging instruments
Derivatives, Fair Value [Line Items]
DERIVATIVE ASSETS	26	22
Deferred income taxes and other assets | Interest rate swaps | Derivatives formally designated as hedging instruments
Derivatives, Fair Value [Line Items]
DERIVATIVE ASSETS	55	24
Accrued liabilities | Foreign exchange forwards and options | Derivatives formally designated as hedging instruments
Derivatives, Fair Value [Line Items]
DERIVATIVE LIABILITIES	339	216
Accrued liabilities | Foreign exchange forwards and options | Derivatives not designated as hedging instruments
Derivatives, Fair Value [Line Items]
DERIVATIVE LIABILITIES	9	10
Deferred income taxes and other liabilities | Foreign exchange forwards and options | Derivatives formally designated as hedging instruments
Derivatives, Fair Value [Line Items]
DERIVATIVE LIABILITIES	170	142
Deferred income taxes and other liabilities | Interest rate swaps | Derivatives formally designated as hedging instruments
Derivatives, Fair Value [Line Items]
DERIVATIVE LIABILITIES	$ 0	$ 3