CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	12 Months Ended
	May 31, 2020	May 31, 2019	May 31, 2018
Cash flows from operating activities:
Net income	$ 10,135	$ 11,083	$ 3,587
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	1,382	1,230	1,165
Amortization of intangible assets	1,586	1,689	1,620
Allowances for doubtful accounts receivable	245	190	146
Deferred income taxes	(851)	(1,191)	(847)
Stock-based compensation	1,590	1,653	1,607
Other, net	239	157	(27)
Changes in operating assets and liabilities, net of effects from acquisitions:
(Increase) decrease in trade receivables, net	(690)	(272)	267
Decrease (increase) in prepaid expenses and other assets	665	261	(258)
Decrease in accounts payable and other liabilities	(496)	(102)	(260)
(Decrease) increase in income taxes payable	(444)	(453)	8,150
(Decrease) increase in deferred revenues	(222)	306	236
Net cash provided by operating activities	13,139	14,551	15,386
Cash flows from investing activities:
Purchases of marketable securities and other investments	(5,731)	(1,400)	(25,282)
Proceeds from maturities of marketable securities and other investments	4,687	12,681	20,372
Proceeds from sales of marketable securities	12,575	17,299	2,745
Acquisitions, net of cash acquired	(124)	(363)	(1,724)
Capital expenditures	(1,564)	(1,660)	(1,736)
Net cash provided by (used for) investing activities	9,843	26,557	(5,625)
Cash flows from financing activities:
Payments for repurchases of common stock	(19,240)	(36,140)	(11,347)
Proceeds from issuances of common stock	1,588	2,155	2,402
Shares repurchased for tax withholdings upon vesting of restricted stock-based awards	(665)	(503)	(506)
Payments of dividends to stockholders	(3,070)	(2,932)	(3,140)
Proceeds from borrowings, net of issuance costs	19,888	0	12,443
Repayments of borrowings	(4,500)	(4,500)	(9,800)
Other, net	(133)	(136)	(34)
Net cash used for financing activities	(6,132)	(42,056)	(9,982)
Effect of exchange rate changes on cash and cash equivalents	(125)	(158)	57
Net increase (decrease) in cash and cash equivalents	16,725	(1,106)	(164)
Cash and cash equivalents at beginning of period	20,514	21,620	21,784
Cash and cash equivalents at end of period	37,239	20,514	21,620
Non-cash investing and financing activities:
Fair values of stock awards assumed in connection with acquisitions	0	8	3
Change in unsettled repurchases of common stock	(40)	(140)	154
Change in unsettled investment purchases	0	0	(303)
Supplemental schedule of cash flow data:
Cash paid for income taxes	3,218	2,901	1,562
Cash paid for interest	$ 1,972	$ 2,059	$ 1,910