CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	12 Months Ended
	May 31, 2021	May 31, 2020	May 31, 2019
Cash flows from operating activities:
Net income	$ 13,746	$ 10,135	$ 11,083
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	1,537	1,382	1,230
Amortization of intangible assets	1,379	1,586	1,689
Allowances for doubtful accounts receivable	192	245	190
Deferred income taxes	(2,425)	(851)	(1,191)
Stock-based compensation	1,837	1,590	1,653
Other, net	(39)	239	157
Changes in operating assets and liabilities, net of effects from acquisitions:
Decrease (increase) in trade receivables, net	141	(690)	(272)
Decrease in prepaid expenses and other assets	622	665	261
Decrease in accounts payable and other liabilities	(23)	(496)	(102)
Decrease in income taxes payable	(1,485)	(444)	(453)
Increase (decrease) in deferred revenues	405	(222)	306
Net cash provided by operating activities	15,887	13,139	14,551
Cash flows from investing activities:
Purchases of marketable securities and other investments	(37,982)	(5,731)	(1,400)
Proceeds from maturities of marketable securities	26,024	4,687	12,681
Proceeds from sales of marketable securities and other investments	1,036	12,575	17,299
Acquisitions, net of cash acquired	(41)	(124)	(363)
Capital expenditures	(2,135)	(1,564)	(1,660)
Net cash (used for) provided by investing activities	(13,098)	9,843	26,557
Cash flows from financing activities:
Payments for repurchases of common stock	(20,934)	(19,240)	(36,140)
Proceeds from issuances of common stock	1,786	1,588	2,155
Shares repurchased for tax withholdings upon vesting of restricted stock-based awards	(666)	(665)	(503)
Payments of dividends to stockholders	(3,063)	(3,070)	(2,932)
Proceeds from borrowings, net of issuance costs	14,934	19,888	0
Repayments of borrowings	(2,631)	(4,500)	(4,500)
Other, net	196	(133)	(136)
Net cash used for financing activities	(10,378)	(6,132)	(42,056)
Effect of exchange rate changes on cash and cash equivalents	448	(125)	(158)
Net (decrease) increase in cash and cash equivalents	(7,141)	16,725	(1,106)
Cash and cash equivalents at beginning of period	37,239	20,514	21,620
Cash and cash equivalents at end of period	30,098	37,239	20,514
Non-cash investing and financing activities:
Fair values of stock awards assumed in connection with acquisitions	0	0	8
Change in unsettled repurchases of common stock	66	(40)	(140)
Supplemental schedule of cash flow data:
Cash paid for income taxes	3,189	3,218	2,901
Cash paid for interest	$ 2,408	$ 1,972	$ 2,059