Accumulated Other Comprehensive Income (Loss) - Changes in AOCI (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Feb. 28, 2022	Feb. 28, 2021	Feb. 28, 2022	Feb. 28, 2021
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	$ 14,924	$ 10,640	$ 12,767	$ 8,055
Other comprehensive income (loss):
Other comprehensive gains (losses) before reclassifications, net of tax	(9)	(70)	407	(278)
Reclassifications to net income of previously deferred (gains) losses, net of tax	(37)	53	72	(112)
Total other comprehensive income (loss), net of tax	(46)	(17)	479	(390)
Ending balance	14,809	11,931	14,809	11,931
Other comprehensive income, before reclassification, tax benefit (expense)	8	(2)	(62)	(1)
Reclassification from AOCI, current period, tax expense (benefit)	6	0	1	7
Gains (losses) on foreign currency translation adjustment
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	(281)	(98)	2	(494)
Other comprehensive income (loss):
Other comprehensive gains (losses) before reclassifications, net of tax	(6)	99	(289)	496
Reclassifications to net income of previously deferred (gains) losses, net of tax	0	(1)	0	(2)
Total other comprehensive income (loss), net of tax	(6)	98	(289)	494
Ending balance	(287)	0	(287)	0
Other comprehensive income, before reclassification, tax benefit (expense)	0	0	0	0
Reclassification from AOCI, current period, tax expense (benefit)	0	0	0	0
CASH FLOW HEDGES
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	369	(371)	(435)	390
Other comprehensive income (loss):
Other comprehensive gains (losses) before reclassifications, net of tax	4	(163)	689	(753)
Reclassifications to net income of previously deferred (gains) losses, net of tax	(33)	46	86	(125)
Total other comprehensive income (loss), net of tax	(29)	(117)	775	(878)
Ending balance	340	(488)	340	(488)
Other comprehensive income, before reclassification, tax benefit (expense)	6	(3)	(60)	(3)
Reclassification from AOCI, current period, tax expense (benefit)	5	0	(4)	7
Net Investment Hedges
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	115	115	115	115
Other comprehensive income (loss):
Other comprehensive gains (losses) before reclassifications, net of tax	0	0	0	0
Reclassifications to net income of previously deferred (gains) losses, net of tax	0	0	0	0
Total other comprehensive income (loss), net of tax	0	0	0	0
Ending balance	115	115	115	115
Other comprehensive income, before reclassification, tax benefit (expense)	0	0	0	0
Reclassification from AOCI, current period, tax expense (benefit)	0	0	0	0
OTHER
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	(58)	(75)	(62)	(67)
Other comprehensive income (loss):
Other comprehensive gains (losses) before reclassifications, net of tax	(7)	(6)	7	(21)
Reclassifications to net income of previously deferred (gains) losses, net of tax	(4)	8	(14)	15
Total other comprehensive income (loss), net of tax	(11)	2	(7)	(6)
Ending balance	(69)	(73)	(69)	(73)
Other comprehensive income, before reclassification, tax benefit (expense)	2	1	(2)	2
Reclassification from AOCI, current period, tax expense (benefit)	1	0	5	0
TOTAL
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	145	(429)	(380)	(56)
Other comprehensive income (loss):
Ending balance	$ 99	$ (446)	$ 99	$ (446)