ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Nov. 30, 2025	Nov. 30, 2024	Nov. 30, 2025	Nov. 30, 2024
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ 13,468	$ 13,944	$ 13,213	$ 14,430
Other comprehensive income (loss):
Other comprehensive gains (losses) before reclassifications	193	272	174	265
Reclassifications to net income of previously deferred (gains) losses	11	(43)	(20)	(116)
Total other comprehensive income (loss), net of tax	204	229	154	149
Ending balance	14,085	14,037	14,085	14,037
TOTAL
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(308)	(27)	(258)	53
Other comprehensive income (loss):
Total other comprehensive income (loss), net of tax	204	229	154	149
Ending balance	(104)	202	(104)	202
FOREIGN CURRENCY TRANSLATION ADJUSTMENT
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	20	(118)	(114)	(256)
Other comprehensive income (loss):
Other comprehensive gains (losses) before reclassifications	(55)	(223)	79	(86)
Reclassifications to net income of previously deferred (gains) losses	0	(1)	0	0
Total other comprehensive income (loss), net of tax	(55)	(224)	79	(86)
Ending balance	(35)	(342)	(35)	(342)
CASH FLOW HEDGES
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(393)	20	(207)	247
Other comprehensive income (loss):
Other comprehensive gains (losses) before reclassifications	247	492	92	341
Reclassifications to net income of previously deferred (gains) losses	11	(42)	(20)	(118)
Total other comprehensive income (loss), net of tax	258	450	72	223
Ending balance	(135)	470	(135)	470
NET INVESTMENT HEDGES
AOCI Attributable to Parent, Net of Tax [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
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(50)	(44)	(52)	(53)
Other comprehensive income (loss):
Other comprehensive gains (losses) before reclassifications	1	3	3	10
Reclassifications to net income of previously deferred (gains) losses	0	0	0	2
Total other comprehensive income (loss), net of tax	1	3	3	12
Ending balance	$ (49)	$ (41)	$ (49)	$ (41)