CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Nov. 30, 2013	Nov. 30, 2012	Nov. 30, 2013	Nov. 30, 2012
Net income	$ 2,553	$ 2,581	$ 4,744	$ 4,615
Portion Attributable to Parent [Member]
Net income	2,553	2,581	4,744	4,615
Other comprehensive income (loss), net of tax:
Net foreign currency translation gains (losses)	80	10	(107)	77
Net unrealized gains (losses) on defined benefit plans	3	(1)	6	4
Net unrealized gains (losses) on marketable securities	11	(98)	(18)	29
Net unrealized gains (losses) on cash flow hedges	24		(8)
Total other comprehensive income (loss), net	118	(89)	(127)	110
Comprehensive income	$ 2,671	$ 2,492	$ 4,617	$ 4,725