CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Millions	12 Months Ended
	May 31, 2011	May 31, 2010	May 31, 2009
Cash provided by operations:
Net income	$ 2,133	$ 1,907	$ 1,487
Income charges (credits) not affecting cash:
Depreciation	335	324	335
Deferred income taxes	(76)	8	(294)
Stock-based compensation (Note 11)	105	159	171
Impairment of goodwill, intangibles and other assets (Note 4)			401
Amortization and other	23	72	48
Changes in certain working capital components and other assets and liabilities excluding the impact of acquisition and divestitures:
(Increase) decrease in accounts receivable	(273)	182	(238)
(Increase) decrease in inventories	(551)	285	32
(Increase) decrease in prepaid expenses and other current assets	(35)	(70)	14
Increase (decrease) in accounts payable, accrued liabilities and income taxes payable	151	297	(220)
Cash provided by operations	1,812	3,164	1,736
Cash used by investing activities:
Purchases of short-term investments	(7,616)	(3,724)	(2,909)
Maturities of short-term investments	4,313	2,334	1,280
Sales of short-term investments	2,766	453	1,110
Additions to property, plant and equipment	(432)	(335)	(456)
Disposals of property, plant and equipment	1	10	33
Increase in other assets, net of other liabilities	(30)	(11)	(47)
Settlement of net investment hedges	(23)	5	191
Cash used by investing activities	(1,021)	(1,268)	(798)
Cash used by financing activities:
Reductions in long-term debt, including current portion	(8)	(32)	(7)
Increase (decrease) in notes payable	41	(205)	177
Proceeds from exercise of stock options and other stock issuances	345	364	187
Excess tax benefits from share-based payment arrangements	64	58	25
Repurchase of common stock	(1,859)	(741)	(649)
Dividends - common and preferred	(555)	(505)	(467)
Cash used by financing activities	(1,972)	(1,061)	(734)
Effect of exchange rate changes	57	(47)	(47)
Net (decrease) increase in cash and equivalents	(1,124)	788	157
Cash and equivalents, beginning of year	3,079	2,291	2,134
Cash and equivalents, end of year	1,955	3,079	2,291
Cash paid during the year for:
Interest, net of capitalized interest	32	48	47
Income taxes	736	537	765
Dividends declared and not paid	$ 145	$ 131	$ 121