ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Details) - USD ($) $ in Millions	12 Months Ended
	May 31, 2024	May 31, 2023	May 31, 2022
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	$ 14,004	$ 15,281	$ 12,767
Other comprehensive income (loss):
Other comprehensive gains (losses) before reclassifications	250	376
Reclassifications to net income of previously deferred (gains) losses	(428)	(463)
Total other comprehensive income (loss), net of tax	(178)	(87)	698
Ending balance	14,430	14,004	15,281
TOTAL
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	231	318	(380)
Other comprehensive income (loss):
Total other comprehensive income (loss), net of tax	(178)	(87)	698
Ending balance	53	231	318
FOREIGN CURRENCY TRANSLATION ADJUSTMENT
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	(253)	(520)
Other comprehensive income (loss):
Other comprehensive gains (losses) before reclassifications	(4)	(91)
Reclassifications to net income of previously deferred (gains) losses	1	358
Total other comprehensive income (loss), net of tax	(3)	267
Ending balance	(256)	(253)	(520)
CASH FLOW HEDGES
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	431	779
Other comprehensive income (loss):
Other comprehensive gains (losses) before reclassifications	239	487
Reclassifications to net income of previously deferred (gains) losses	(423)	(835)
Total other comprehensive income (loss), net of tax	(184)	(348)
Ending balance	247	431	779
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	115
OTHER
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	(62)	(56)
Other comprehensive income (loss):
Other comprehensive gains (losses) before reclassifications	15	(20)
Reclassifications to net income of previously deferred (gains) losses	(6)	14
Total other comprehensive income (loss), net of tax	9	(6)
Ending balance	$ (53)	$ (62)	$ (56)