Unaudited Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Aug. 31, 2020	Aug. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 1,518	$ 1,367
Other comprehensive income (loss), net of tax:
Change in net foreign currency translation adjustment	318	(89)
Change in net gains (losses) on cash flow hedges	(658)	36
Change in net gains (losses) on other	(5)	2
Total other comprehensive income (loss), net of tax	(345)	(51)
TOTAL COMPREHENSIVE INCOME	$ 1,173	$ 1,316