ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Nov. 30, 2024	Nov. 30, 2023	Nov. 30, 2024	Nov. 30, 2023
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	$ 13,944	$ 13,971	$ 14,430	$ 14,004
Other comprehensive income (loss):
Other comprehensive gains (losses) before reclassifications	272	96	265	109
Reclassifications to net income of previously deferred (gains) losses	(43)	(111)	(116)	(219)
Total other comprehensive income (loss), net of tax	229	(15)	149	(110)
Ending Balance	14,037	14,146	14,037	14,146
TOTAL
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	(27)	136	53	231
Other comprehensive income (loss):
Total other comprehensive income (loss), net of tax	229	(15)	149	(110)
Ending Balance	202	121	202	121
FOREIGN CURRENCY TRANSLATION ADJUSTMENT
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	(118)	(217)	(256)	(253)
Other comprehensive income (loss):
Other comprehensive gains (losses) before reclassifications	(223)	37	(86)	73
Reclassifications to net income of previously deferred (gains) losses	(1)	2	0	2
Total other comprehensive income (loss), net of tax	(224)	39	(86)	75
Ending Balance	(342)	(178)	(342)	(178)
CASH FLOW HEDGES
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	20	297	247	431
Other comprehensive income (loss):
Other comprehensive gains (losses) before reclassifications	492	48	341	25
Reclassifications to net income of previously deferred (gains) losses	(42)	(103)	(118)	(214)
Total other comprehensive income (loss), net of tax	450	(55)	223	(189)
Ending Balance	470	242	470	242
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	0	0	0	0
Reclassifications to net income of previously deferred (gains) losses	0	0	0	0
Total other comprehensive income (loss), net of tax	0	0	0	0
Ending Balance	115	115	115	115
OTHER
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	(44)	(59)	(53)	(62)
Other comprehensive income (loss):
Other comprehensive gains (losses) before reclassifications	3	11	10	11
Reclassifications to net income of previously deferred (gains) losses	0	(10)	2	(7)
Total other comprehensive income (loss), net of tax	3	1	12	4
Ending Balance	$ (41)	$ (58)	$ (41)	$ (58)