BASIS OF PRESENTATION, RECENT ACCOUNTING PRONOUNCEMENTS AND OTHER (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Nov. 30, 2022	Nov. 30, 2021	Nov. 30, 2022	Nov. 30, 2021	May 31, 2022
Equity Securities, FV-NI and without Readily Determinable Fair Value [Abstract]
Non-marketable debt investments and equity securities and related instruments	$ 2,000		$ 2,000		$ 1,200
Acquisition Related and Other Expenses [Abstract]
Transitional and other employee related costs	21	$ 2	38	$ 4
Business combination adjustments, net	3	1	8	4
Other, net	38	4,664	57	4,679
Total acquisition related and other expenses	62	4,667	103	4,687
Non-Operating Expenses, net [Abstract]
Interest income	52	21	90	40
Foreign currency losses, net	(55)	(46)	(125)	(81)
Noncontrolling interests in income	(41)	(42)	(79)	(89)
(Losses) gains from equity investments, net	(40)	80	(126)	59
Other gains (losses), net	13	(6)	(11)	37
Total non-operating (expenses) income, net	$ (71)	$ 7	$ (251)	$ (34)