RISK MANAGEMENT AND DERIVATIVES - Fair Value of Derivative Instruments Included within Consolidated Balance Sheet (Details) - Level 2 - USD ($) $ in Millions	Aug. 31, 2026	May 31, 2026
Derivatives, Fair Value [Line Items]
DERIVATIVE ASSETS	$ 196	$ 190
DERIVATIVE LIABILITIES	342	343
Derivatives formally designated as hedging instruments
Derivatives, Fair Value [Line Items]
DERIVATIVE ASSETS	171	161
DERIVATIVE LIABILITIES	322	325
Derivatives not designated as hedging instruments
Derivatives, Fair Value [Line Items]
DERIVATIVE ASSETS	25	29
DERIVATIVE LIABILITIES	20	18
Prepaid expenses and other current assets \| Foreign exchange forwards and options \| Derivatives formally designated as hedging instruments
Derivatives, Fair Value [Line Items]
DERIVATIVE ASSETS	118	111
Prepaid expenses and other current assets \| Foreign exchange forwards and options \| Derivatives not designated as hedging instruments
Derivatives, Fair Value [Line Items]
DERIVATIVE ASSETS	25	29
Deferred income taxes and other assets \| Foreign exchange forwards and options \| Derivatives formally designated as hedging instruments
Derivatives, Fair Value [Line Items]
DERIVATIVE ASSETS	53	44
Deferred income taxes and other assets \| Interest rate swaps \| Derivatives formally designated as hedging instruments
Derivatives, Fair Value [Line Items]
DERIVATIVE ASSETS	0	6
Accrued liabilities \| Foreign exchange forwards and options \| Derivatives formally designated as hedging instruments
Derivatives, Fair Value [Line Items]
DERIVATIVE LIABILITIES	220	253
Accrued liabilities \| Foreign exchange forwards and options \| Derivatives not designated as hedging instruments
Derivatives, Fair Value [Line Items]
DERIVATIVE LIABILITIES	20	18
Deferred income taxes and other liabilities \| Foreign exchange forwards and options \| Derivatives formally designated as hedging instruments
Derivatives, Fair Value [Line Items]
DERIVATIVE LIABILITIES	49	62
Deferred income taxes and other liabilities \| Interest rate swaps \| Derivatives formally designated as hedging instruments
Derivatives, Fair Value [Line Items]
DERIVATIVE LIABILITIES	$ 53	$ 10