Consolidated Statements of Income - USD ($) shares in Millions, $ in Millions	12 Months Ended
	May 31, 2019	May 31, 2018	May 31, 2017
Income Statement [Abstract]
Revenues	$ 39,117	$ 36,397	$ 34,350
Cost of sales	21,643	20,441	19,038
Gross profit	17,474	15,956	15,312
Demand creation expense	3,753	3,577	3,341
Operating overhead expense	8,949	7,934	7,222
Total selling and administrative expense	12,702	11,511	10,563
Interest expense (income), net	49	54	59
Other (income) expense, net	(78)	66	(196)
Income before income taxes	4,801	4,325	4,886
Income tax expense	772	2,392	646
NET INCOME	$ 4,029	$ 1,933	$ 4,240
Earnings per common share:
Basic (in dollars per share)	$ 2.55	$ 1.19	$ 2.56
Diluted (in dollars per share)	$ 2.49	$ 1.17	$ 2.51
Weighted average common shares outstanding:
Basic (in shares)	1,579.7	1,623.8	1,657.8
Diluted (in shares)	1,618.4	1,659.1	1,692.0