ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Details) - USD ($) $ in Millions	3 Months Ended
	Aug. 31, 2024	Aug. 31, 2023
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	$ 14,430	$ 14,004
Other comprehensive income (loss):
Other comprehensive gains (losses) before reclassifications	(7)	13
Reclassifications to net income of previously deferred (gains) losses	(73)	(108)
Total other comprehensive income (loss), net of tax	(80)	(95)
Ending Balance	13,944	13,971
TOTAL
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	53	231
Other comprehensive income (loss):
Total other comprehensive income (loss), net of tax	(80)	(95)
Ending Balance	(27)	136
FOREIGN CURRENCY TRANSLATION ADJUSTMENT
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	(256)	(253)
Other comprehensive income (loss):
Other comprehensive gains (losses) before reclassifications	137	36
Reclassifications to net income of previously deferred (gains) losses	1	0
Total other comprehensive income (loss), net of tax	138	36
Ending Balance	(118)	(217)
CASH FLOW HEDGES
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	247	431
Other comprehensive income (loss):
Other comprehensive gains (losses) before reclassifications	(151)	(23)
Reclassifications to net income of previously deferred (gains) losses	(76)	(111)
Total other comprehensive income (loss), net of tax	(227)	(134)
Ending Balance	20	297
NET INVESTMENT HEDGES
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	115	115
Other comprehensive income (loss):
Other comprehensive gains (losses) before reclassifications	0	0
Reclassifications to net income of previously deferred (gains) losses	0	0
Total other comprehensive income (loss), net of tax	0	0
Ending Balance	115	115
OTHER
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	(53)	(62)
Other comprehensive income (loss):
Other comprehensive gains (losses) before reclassifications	7	0
Reclassifications to net income of previously deferred (gains) losses	2	3
Total other comprehensive income (loss), net of tax	9	3
Ending Balance	$ (44)	$ (59)