INTANGIBLE ASSETS (Details) - USD ($) $ in Millions		3 Months Ended
		Aug. 31, 2021	Aug. 31, 2020	May 31, 2021
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross		$ 11,057		$ 11,003
Additions & Adjustments, net	[1]	54
Accumulated Amortization,		(8,876)		(8,573)
Expense		(303)	$ (345)
Intangible Assets, Net		2,181		2,430
Developed technology [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross		4,296		4,237
Additions & Adjustments, net	[1]	59
Accumulated Amortization,		(3,748)		(3,621)
Expense		(127)
Intangible Assets, Net		$ 548		616
Weighted Average Useful Life	[2]	3 years
Cloud services and license support agreements and related relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross		$ 5,492		5,497
Additions & Adjustments, net	[1]	(5)
Accumulated Amortization,		(3,989)		(3,834)
Expense		(155)
Intangible Assets, Net		$ 1,503		1,663
Weighted Average Useful Life	[2]	0 years
Other [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross		$ 1,269		1,269
Additions & Adjustments, net	[1]	0
Accumulated Amortization,		(1,139)		(1,118)
Expense		(21)
Intangible Assets, Net		$ 130		$ 151
Weighted Average Useful Life	[2]	0 years

[1] Amounts also include any changes in intangible asset balances for the periods presented that resulted from foreign currency translations.

[2] Represents weighted-average useful lives (in years) of intangible assets acquired during fiscal 2022.