CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	12 Months Ended
	May. 31, 2015	May. 31, 2014	May. 31, 2013
Cash flows from operating activities:
Net income	$ 9,938	$ 10,955	$ 10,925
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	712	608	546
Amortization of intangible assets	2,149	2,300	2,385
Allowances for doubtful accounts receivable	56	122	118
Deferred income taxes	(548)	(248)	(117)
Stock-based compensation	933	805	755
Tax benefits on the exercise of stock options and vesting of restricted stock-based awards	396	480	410
Excess tax benefits on the exercise of stock options and vesting of restricted stock-based awards	(244)	(250)	(241)
Other, net	327	311	155
Changes in operating assets and liabilities, net of effects from acquisitions:
Decrease in trade receivables	208	24	267
(Increase) decrease in inventories	(96)	57	(66)
Increase in prepaid expenses and other assets	(387)	(143)	(555)
Increase (decrease) in accounts payable and other liabilities	247	48	(541)
(Decrease) increase in income taxes payable	(10)	(320)	35
Increase in deferred revenues	655	172	148
Net cash provided by operating activities	14,336	14,921	14,224
Cash flows from investing activities:
Purchases of marketable securities and other investments	(31,421)	(32,316)	(32,160)
Proceeds from maturities and sales of marketable securities and other investments	20,004	28,845	30,159
Acquisitions, net of cash acquired	(6,239)	(3,488)	(3,305)
Capital expenditures	(1,391)	(580)	(650)
Net cash used for investing activities	(19,047)	(7,539)	(5,956)
Cash flows from financing activities:
Payments for repurchases of common stock	(8,087)	(9,813)	(11,021)
Proceeds from issuances of common stock	1,802	2,135	1,527
Payments of dividends to stockholders	(2,255)	(2,178)	(1,433)
Proceeds from borrowings, net of issuance costs	19,842	5,566	4,974
Repayments of borrowings	(1,500)		(2,950)
Excess tax benefits on the exercise of stock options and vesting of restricted stock-based awards	244	250	241
Distributions to noncontrolling interests	(196)	(28)	(31)
Other, net			193
Net cash provided by (used for) financing activities	9,850	(4,068)	(8,500)
Effect of exchange rate changes on cash and cash equivalents	(1,192)	(158)	(110)
Net increase (decrease) in cash and cash equivalents	3,947	3,156	(342)
Cash and cash equivalents at beginning of period	17,769	14,613	14,955
Cash and cash equivalents at end of period	21,716	17,769	14,613
Non-cash investing and financing transactions:
Fair value of stock options and restricted stock-based awards assumed in connection with acquisitions	12	148	15
Increase (decrease) in unsettled repurchases of common stock	1	(15)	(27)
Increase in unsettled investment purchases	264	78
Supplemental schedule of cash flow data:
Cash paid for income taxes	3,055	2,841	2,644
Cash paid for interest	$ 1,022	$ 827	$ 781