Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Aug. 31, 2015	Aug. 31, 2014
Operating Activities:
Net income	$ 312	$ 225
Noncash charges:
Depreciation and amortization	344	371
Other, net	39	(3)
Changes in assets and liabilities. net	96	(162)
Cash provided by operating activities	791	431
Investing Activities:
Capital expenditures	(832)	(466)
Other	12	2
Cash used in investing activities	(820)	(464)
Financing Activities:
Effect of exchange rate changes on cash	(32)	(15)
Net decrease in cash and cash equivalents	(61)	(48)
Cash and cash equivalents at beginning of period	884	858
Cash and cash equivalents at end of period	$ 823	$ 810