Accumulated Other Comprehensive Income (Loss) - Reclassification out of AOCI (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Feb. 28, 2022	Feb. 28, 2021	Feb. 28, 2022	Feb. 28, 2021
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Revenues	$ 10,871	$ 10,357	$ 34,476	$ 32,194
Cost of sales	(5,804)	(5,638)	(18,500)	(17,887)
Demand creation expense	(854)	(711)	(2,789)	(2,117)
Interest expense (income), net	(53)	(64)	(165)	(199)
Other (income) expense, net	94	22	235	(18)
Income before income taxes	1,670	1,636	5,277	4,807
Tax (expense) benefit	(274)	(187)	(670)	(589)
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	37	(53)	(72)	112
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	1	0	2
Income before income taxes	0	1	0	2
Tax (expense) benefit	0	0	0	0
Total net gain (loss) reclassified for the period	0	1	0	2
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]
Income before income taxes	38	(46)	(90)	132
Tax (expense) benefit	(5)	0	4	(7)
Total net gain (loss) reclassified for the period	33	(46)	(86)	125
Gain (losses) on cash flow hedges | Foreign exchange forwards and options | AMOUNT OF GAIN (LOSS) RECLASSIFIED FROM ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) INTO INCOME
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Revenues	(22)	16	(63)	56
Cost of sales	17	(35)	(79)	110
Demand creation expense	0	1	1	2
Other (income) expense, net	45	(26)	56	(31)
Gain (losses) on cash flow hedges | Interest rate swaps | AMOUNT OF GAIN (LOSS) RECLASSIFIED FROM ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) INTO INCOME
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Interest expense (income), net	(2)	(2)	(5)	(5)
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	5	(8)	19	(15)
Income before income taxes	5	(8)	19	(15)
Tax (expense) benefit	(1)	0	(5)	0
Total net gain (loss) reclassified for the period	$ 4	$ (8)	$ 14	$ (15)