BASIS OF PRESENTATION, RECENT ACCOUNTING PRONOUNCEMENTS AND OTHER (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Feb. 28, 2022	Feb. 28, 2021	Feb. 28, 2022	Feb. 28, 2021
Acquisition Related and Other Expenses [Abstract]
Transitional and other employee related costs	$ 2	$ 1	$ 6	$ 4
Business combination adjustments, net	5	2	8	3
Other, net	13	10	4,693	100
Total acquisition related and other expenses	20	13	4,707	107
Non-Operating Expenses, net [Abstract]
Interest income	16	23	56	80
Foreign currency losses, net	(29)	(18)	(109)	(84)
Noncontrolling interests in income	(42)	(46)	(131)	(127)
Other, net	(260)	24	(164)	101
Total non-operating expenses, net	$ (315)	$ (17)	$ (348)	$ (30)