Unaudited Condensed Consolidated Statements of Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Feb. 29, 2016	Feb. 28, 2015	Feb. 29, 2016	Feb. 28, 2015
Income Statement [Abstract]
Revenues	$ 8,032	$ 7,460	$ 24,132	$ 22,822
Cost of sales	4,343	4,034	12,947	12,348
Gross profit	3,689	3,426	11,185	10,474
Demand creation expense	804	731	2,405	2,394
Operating overhead expense	1,762	1,648	5,298	4,903
Total selling and administrative expense	2,566	2,379	7,703	7,297
Interest expense (income), net (Notes 4 and 6)	5	6	14	24
Other (income) expense, net (Note 10)	(17)	(5)	(82)	0
Income before income taxes	1,135	1,046	3,550	3,153
Income tax expense (Note 7)	185	255	636	745
NET INCOME	$ 950	$ 791	$ 2,914	$ 2,408
Earnings per common share:
Basic (in dollars per share)	$ 0.56	$ 0.46	$ 1.71	$ 1.39
Diluted (in dollars per share)	0.55	0.45	1.67	1.36
Dividends declared per common share (in dollars per share)	$ 0.16	$ 0.14	$ 0.46	$ 0.40