Unaudited Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	6 Months Ended
	Nov. 30, 2015	Nov. 30, 2014
Cash provided by operations:
Net income	$ 1,964	$ 1,617
Income charges (credits) not affecting cash:
Depreciation	314	301
Deferred income taxes	(39)	49
Stock-based compensation (Note 8)	116	92
Amortization and other	8	15
Net foreign currency adjustments	74	243
Changes in certain working capital components and other assets and liabilities:
(Increase) in accounts receivable	(139)	(177)
(Increase) in inventories	(354)	(318)
(Increase) in prepaid expenses and other current assets	(114)	(58)
(Decrease) in accounts payable, accrued liabilities and income taxes payable	(794)	(217)
Cash provided by operations	1,036	1,547
Cash used by investing activities:
Purchases of short-term investments	(2,851)	(2,588)
Maturities of short-term investments	1,510	1,862
Sales of short-term investments	1,250	1,045
Additions to property, plant and equipment	(615)	(487)
Disposals of property, plant and equipment	9	2
Cash used by investing activities	(697)	(166)
Cash used by financing activities:
Net proceeds from long-term debt issuance (Note 6)	981	0
Long-term debt payments, including current portion	(103)	(4)
Increase (decrease) in notes payable	33	(58)
Payments on capital lease obligations	(3)	(12)
Proceeds from exercise of stock options and other stock issuances	328	313
Excess tax benefits from share-based payment arrangements	201	116
Repurchase of common stock	(1,240)	(1,243)
Dividends — common and preferred	(479)	(416)
Cash used by financing activities	(282)	(1,304)
Effect of exchange rate changes on cash and equivalents	(58)	(24)
Net (decrease) increase in cash and equivalents	(1)	53
Cash and equivalents, beginning of period	3,852	2,220
CASH AND EQUIVALENTS, END OF PERIOD	3,851	2,273
Supplemental disclosure of cash flow information:
Non-cash additions to property, plant and equipment	201	141
Dividends declared and not paid	$ 273	$ 242