Condensed Consolidated Statements of Cash Flows (USD $) In Millions	3 Months Ended
Aug. 31, 2011	Aug. 31, 2010
Operating Activities:
Net income	$ 185	$ 212
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation and amortization	279	252
Other, net	97	26
Changes in assets and liabilities, net	435	357
Cash provided by operating activities	996	847
Investing Activities:
Capital expenditures	(870)	(842)
Business acquisition, net of cash acquired	(111)
Other	2	1
Cash used in investing activities	(979)	(841)
Financing Activities:
Principal payments on debt	(17)	(11)
Cash used in financing activities	(17)	(11)
Effect of exchange rate changes on cash	11	11
Net increase in cash and cash equivalents	11	6
Cash and cash equivalents at beginning of period	626	512
Cash and cash equivalents at end of period	$ 637	$ 518

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