Condensed Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	3 Months Ended
	Aug. 31, 2013	Aug. 31, 2012
Operating Activities:
Net income	$ 146	$ 126
Noncash charges:
Depreciation and amortization	366	320
Other, net	52	38
Changes in assets and liabilities. net	(224)	1,094
Cash provided by operating activities	340	1,578
Investing Activities:
Capital expenditures	(304)	(749)
Business acquisitions, net of cash acquired		(483)
Other	7	9
Cash used in investing activities	(297)	(1,223)
Financing Activities:
Principal payments on debt		(301)
Cash used in financing activities		(301)
Effect of exchange rate changes on cash	(7)	11
Net increase in cash and cash equivalents	36	65
Cash and cash equivalents at beginning of period	769	712
Cash and cash equivalents at end of period	$ 805	$ 777