ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) - Reclassification out of AOCI (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Nov. 30, 2023	Nov. 30, 2022	Nov. 30, 2023	Nov. 30, 2022
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Other (income) expense, net	$ 75	$ 79	$ 85	$ 225
Revenues	13,388	13,315	26,327	26,002
Cost of sales	(7,417)	(7,604)	(14,636)	(14,676)
Demand creation expense	(1,114)	(1,102)	(2,183)	(2,045)
Interest expense (income), net	22	(16)	56	(29)
Income before income taxes	1,922	1,650	3,570	3,478
Tax (expense) benefit	(344)	(319)	(542)	(679)
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	111	(40)	219	83
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	(2)	(325)	(2)	(371)
Income before income taxes	(2)	(325)	(2)	(371)
Tax (expense) benefit	0	16	0	16
Total net gain (loss) reclassified for the period	(2)	(309)	(2)	(355)
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	51	125	86	207
Revenues	2	4	3	(5)
Cost of sales	65	173	151	282
Demand creation expense	0	(2)	0	(3)
Interest expense (income), net	(2)	(2)	(4)	(4)
Income before income taxes	116	298	236	477
Tax (expense) benefit	(13)	(35)	(22)	(53)
Total net gain (loss) reclassified for the period	103	263	214	424
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	14	9	10	20
Income before income taxes	14	9	10	20
Tax (expense) benefit	(4)	(3)	(3)	(6)
Total net gain (loss) reclassified for the period	$ 10	$ 6	$ 7	$ 14