ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES (Details) - USD ($) $ in Millions	12 Months Ended
	May 31, 2022	May 31, 2021	May 31, 2020
Acquisition Related and Other Expenses [Abstract]
Transitional and other employee related costs	$ 10	$ 5	$ 12
Business combination adjustments, net	9	4	(7)
Other, net	4,694	129	51
Total acquisition related and other expenses	4,713	138	56
Non-Operating (Expenses) Income, net [Abstract]
Interest income	94	101	527
Foreign currency losses, net	(199)	(112)	(185)
Noncontrolling interests in income	(184)	(180)	(164)
(Losses) gains in equity investments, net	(147)	262
Other (losses) gains, net	(86)	211	(16)
Total non-operating (expenses) income, net	$ (522)	$ 282	$ 162