CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	3 Months Ended
Aug. 31, 2019	Aug. 31, 2018
Cash flows from operating activities:
Net income	$ 2,137	$ 2,265
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	336	286
Amortization of intangible assets	414	434
Deferred income taxes	(14)	(112)
Stock-based compensation	446	436
Other, net	60	52
Changes in operating assets and liabilities, net of effects from acquisitions:
Decrease in trade receivables, net	1,313	1,390
Decrease in prepaid expenses and other assets	481	309
Decrease in accounts payable and other liabilities	(813)	(561)
(Decrease) increase in income taxes payable	(121)	10
Increase in deferred revenues	1,761	2,213
Net cash provided by operating activities	6,000	6,722
Cash flows from investing activities:
Purchases of marketable securities and other investments	(216)	(739)
Proceeds from maturities of marketable securities and other investments	879	4,704
Proceeds from sales of marketable securities	12,111	0
Acquisitions, net of cash acquired	(2)	(50)
Capital expenditures	(386)	(383)
Net cash provided by investing activities	12,386	3,532
Cash flows from financing activities:
Payments for repurchases of common stock	(5,005)	(9,967)
Proceeds from issuances of common stock	316	291
Shares repurchased for tax withholdings upon vesting of restricted stock-based awards	(514)	(379)
Payments of dividends to stockholders	(795)	(742)
Repayments of borrowings	(1,750)	(2,500)
Other, net	(54)	(36)
Net cash used for financing activities	(7,802)	(13,333)
Effect of exchange rate changes on cash and cash equivalents	(15)	(86)
Net increase (decrease) in cash and cash equivalents	10,569	(3,165)
Cash and cash equivalents at beginning of period	20,514	21,620
Cash and cash equivalents at end of period	31,083	18,455
Non-cash investing and financing transactions:
Fair values of restricted stock-based awards and stock options assumed in connection with acquisitions	0	8
Change in unsettled repurchases of common stock	$ (5)	$ 33

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- Definition

Amount of cash inflow (outflow) from financing activities classified as other.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
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-Name Accounting Standards Codification
-Topic 230
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-Section 45
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-Topic 230
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-Section 45
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Amount of cash inflow from sale of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
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The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
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- Definition

Amount of noncash expense for share-based payment arrangement.

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