Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	12 Months Ended
	May 31, 2014	May 31, 2013	May 31, 2012
Cash provided by operations:
Net income	$ 2,693	$ 2,472	$ 2,211
Income charges (credits) not affecting cash:
Depreciation	518	438	373
Deferred income taxes	(11)	20	(59)
Stock-based compensation (Note 11)	177	174	130
Amortization and other	114	66	23
Net gain on divestitures	0	(124)	0
Changes in certain working capital components and other assets and liabilities:
(Increase) decrease in accounts receivable	(298)	142	(323)
(Increase) in inventories	(505)	(219)	(815)
(Increase) in prepaid expenses and other current assets	(210)	(28)	(141)
Increase in accounts payable, accrued liabilities and income taxes payable	525	27	425
Cash provided by operations	3,003	2,968	1,824
Cash (used) provided by investing activities:
Purchases of short-term investments	(5,386)	(4,133)	(3,245)
Maturities of short-term investments	3,932	1,663	2,663
Sales of short-term investments	1,126	1,330	1,721
Additions to property, plant and equipment	(880)	(598)	(563)
Disposals of property, plant and equipment	3	14	2
Proceeds from divestitures	0	786	0
Increase in other assets, net of other liabilities	(2)	(2)	(14)
Settlement of net investment hedges	0	0	22
Cash (used) provided by investing activities	(1,207)	(940)	586
Cash used by financing activities:
Net proceeds from long-term debt issuance	0	986	0
Long-term debt payments, including current portion	(60)	(49)	(203)
Increase (decrease) in notes payable	75	10	(47)
Payments on capital lease obligations	(17)	0	0
Proceeds from exercise of stock options and other stock issuances	383	313	468
Excess tax benefits from share-based payment arrangements	132	72	115
Repurchase of common stock	(2,628)	(1,674)	(1,814)
Dividends — common and preferred	(799)	(703)	(619)
Cash used by financing activities	(2,914)	(1,045)	(2,100)
Effect of exchange rate changes	1	100	67
Net (decrease) increase in cash and equivalents	(1,117)	1,083	377
Cash and equivalents, beginning of year	3,337	2,254	1,877
CASH AND EQUIVALENTS, END OF YEAR	2,220	3,337	2,254
Cash paid during the year for:
Interest, net of capitalized interest	53	20	29
Income taxes	856	702	638
Non-cash additions to property, plant and equipment	167	137	99
Dividends declared and not paid	$ 209	$ 188	$ 165