CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	3 Months Ended
	Aug. 31, 2021	Aug. 31, 2020
Cash flows from operating activities:
Net income	$ 2,457	$ 2,251
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	454	356
Amortization of intangible assets	303	345
Deferred income taxes	(15)	173
Stock-based compensation	545	428
Other, net	(27)	78
Changes in operating assets and liabilities, net of effects from acquisitions:
Decrease in trade receivables, net	852	1,077
Decrease in prepaid expenses and other assets	270	380
Decrease in accounts payable and other liabilities	(713)	(294)
Decrease in income taxes payable	(221)	(586)
Increase in deferred revenues	1,486	1,745
Net cash provided by operating activities	5,391	5,953
Cash flows from investing activities:
Purchases of marketable securities and other investments	(7,671)	(10,678)
Proceeds from sales and maturities of marketable securities and other investments	8,002	1,459
Acquisitions, net of cash acquired	(50)	0
Capital expenditures	(1,062)	(436)
Net cash used for investing activities	(781)	(9,655)
Cash flows from financing activities:
Payments for repurchases of common stock	(7,995)	(4,945)
Proceeds from issuances of common stock	148	567
Shares repurchased for tax withholdings upon vesting of restricted stock-based awards	(820)	(478)
Payments of dividends to stockholders	(887)	(730)
Repayments of borrowings	(1,500)	(1,000)
Other, net	(414)	93
Net cash used for financing activities	(11,468)	(6,493)
Effect of exchange rate changes on cash and cash equivalents	(181)	232
Net decrease in cash and cash equivalents	(7,039)	(9,963)
Cash and cash equivalents at beginning of period	30,098	37,239
Cash and cash equivalents at end of period	23,059	27,276
Non-cash financing activities:
Change in unsettled repurchases of common stock	$ 5	$ 55