CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended
	Aug. 31, 2016	Aug. 31, 2015
Net income	$ 1,832	$ 1,747
Portion Attributable to Parent [Member]
Net income	1,832	1,747
Other comprehensive gain (loss), net of tax:
Net foreign currency translation gains (losses)	133	(1)
Net unrealized gains on defined benefit plans	5	13
Net unrealized gains (losses) on marketable securities	143	(126)
Net unrealized gains (losses) on cash flow hedges	2	(29)
Total other comprehensive gain (loss), net	283	(143)
Comprehensive income	$ 2,115	$ 1,604