ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES Narrative (Details) - USD ($)	12 Months Ended
	May 31, 2022	May 31, 2021	May 31, 2020
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Litigation related charges	$ 4,700,000,000
Total net tax benefit		$ 2,300,000,000
Contract with Customer, Asset and Liability [Abstract]
Revenues recognized included in opening deferred revenues balance	8,800,000,000	8,000,000,000.0
Revenue, Performance Obligation [Abstract]
Remaining performance obligation, amount	46,600,000,000
Sales of Financing Receivables [Abstract]
Sales of financing receivables	1,800,000,000	1,700,000,000	$ 1,500,000,000
Equity Securities, FV-NI and without Readily Determinable Fair Value [Abstract]
Non-marketable debt instrument investments and equity securities and related instruments	1,200,000,000	971,000,000
Inventory Net [Abstract]
Total inventories	314,000,000	142,000,000
Other Receivables [Narrative] [Abstract]
Other receivables included in prepaid expenses and other current assets	791,000,000	798,000,000
Goodwill, Intangible Assets and Impairment Assessments [Abstract]
Goodwill impairment loss	0	0	0
Foreign Currency [Abstract]
Net foreign exchange transaction losses included in non-operating expenses or income, net	$ 199,000,000	112,000,000	185,000,000
Stock-Based Compensation [Abstract]
Service period of award	4 years
Advertising [Abstract]
Advertising expenses	$ 273,000,000	$ 202,000,000	$ 178,000,000
Minimum [Member]
Property, Plant and Equipment [Abstract]
Property, plant and equipment, estimated useful lives	1 year
Goodwill, Intangible Assets and Impairment Assessments [Abstract]
Finite lived intangible assets, useful life	1 year
Maximum [Member]
Property, Plant and Equipment [Abstract]
Property, plant and equipment, estimated useful lives	40 years
Goodwill, Intangible Assets and Impairment Assessments [Abstract]
Finite lived intangible assets, useful life	10 years