CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	12 Months Ended
	May 31, 2018	May 31, 2017	May 31, 2016
Cash flows from operating activities:
Net income	$ 3,825	$ 9,335	$ 8,901
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	1,165	1,000	871
Amortization of intangible assets	1,620	1,451	1,638
Allowances for doubtful accounts receivable	146	129	130
Deferred income taxes	(611)	(486)	(105)
Stock-based compensation	1,607	1,350	1,037
Other, net	(26)	123	143
Changes in operating assets and liabilities, net of effects from acquisitions:
(Increase) decrease in trade receivables, net	(117)	18	96
Increase in prepaid expenses and other assets	(276)	(24)	(2)
Decrease in accounts payable and other liabilities	(264)	(37)	(13)
Increase in income taxes payable	8,143	732	313
Increase in deferred revenues	174	535	676
Net cash provided by operating activities	15,386	14,126	13,685
Cash flows from investing activities:
Purchases of marketable securities and other investments	(25,282)	(25,867)	(24,562)
Proceeds from maturities and sales of marketable securities and other investments	23,117	17,615	21,247
Acquisitions, net of cash acquired	(1,724)	(11,221)	(650)
Capital expenditures	(1,736)	(2,021)	(1,189)
Net cash used for investing activities	(5,625)	(21,494)	(5,154)
Cash flows from financing activities:
Payments for repurchases of common stock	(11,347)	(3,561)	(10,440)
Proceeds from issuances of common stock	2,402	2,181	1,425
Shares repurchased for tax withholdings upon vesting of restricted stock-based awards	(506)	(283)	(89)
Payments of dividends to stockholders	(3,140)	(2,631)	(2,541)
Proceeds from borrowings, net of issuance costs	12,443	17,732	3,750
Repayments of borrowings	(9,800)	(4,094)	(2,000)
Distributions to noncontrolling interests	(34)	(258)	(85)
Net cash (used for) provided by financing activities	(9,982)	9,086	(9,980)
Effect of exchange rate changes on cash and cash equivalents	57	(86)	(115)
Net (decrease) increase in cash and cash equivalents	(164)	1,632	(1,564)
Cash and cash equivalents at beginning of period	21,784	20,152	21,716
Cash and cash equivalents at end of period	21,620	21,784	20,152
Non-cash investing and financing transactions:
Fair values of restricted stock-based awards and stock options assumed in connection with acquisitions	3	90	1
Change in unsettled repurchases of common stock	154	(69)	(1)
Change in unsettled investment purchases	(303)	73	(112)
Supplemental schedule of cash flow data:
Cash paid for income taxes	1,562	1,983	2,331
Cash paid for interest	$ 1,910	$ 1,612	$ 1,616