ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) - Reclassification out of AOCI (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Feb. 29, 2024	Feb. 28, 2023	Feb. 29, 2024	Feb. 28, 2023
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Other (income) expense, net	$ 16	$ 58	$ 101	$ 283
Revenues	12,429	12,390	38,756	38,392
Cost of sales	(6,867)	(7,019)	(21,503)	(21,695)
Demand creation expense	(1,011)	(923)	(3,194)	(2,968)
Interest expense (income), net	52	7	108	(22)
Income before income taxes	1,404	1,477	4,974	4,955
Tax (expense) benefit	(232)	(237)	(774)	(916)
AMOUNT OF GAIN (LOSS) RECLASSIFIED FROM ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) INTO INCOME
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Total net gain (loss) reclassified for the period	93	228	312	311
Gains (losses) on foreign currency translation adjustment | AMOUNT OF GAIN (LOSS) RECLASSIFIED FROM ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) INTO INCOME
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Other (income) expense, net	0	(3)	(2)	(374)
Income before income taxes	0	(3)	(2)	(374)
Tax (expense) benefit	0	0	0	16
Total net gain (loss) reclassified for the period	0	(3)	(2)	(358)
Gain (losses) on cash flow hedges | AMOUNT OF GAIN (LOSS) RECLASSIFIED FROM ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) INTO INCOME
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Other (income) expense, net	52	90	138	297
Revenues	(10)	14	(7)	9
Cost of sales	70	182	221	464
Demand creation expense	1	(1)	1	(4)
Interest expense (income), net	(2)	(2)	(6)	(6)
Income before income taxes	111	283	347	760
Tax (expense) benefit	(11)	(29)	(33)	(82)
Total net gain (loss) reclassified for the period	100	254	314	678
Other | AMOUNT OF GAIN (LOSS) RECLASSIFIED FROM ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) INTO INCOME
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Other (income) expense, net	(9)	(32)	1	(12)
Income before income taxes	(9)	(32)	1	(12)
Tax (expense) benefit	2	9	(1)	3
Total net gain (loss) reclassified for the period	$ (7)	$ (23)	$ 0	$ (9)