Consolidated Statements Of Cash Flows - USD ($) $ in Millions	9 Months Ended
	Apr. 29, 2017	Apr. 30, 2016
Cash flows from operating activities:
Net income	$ 7,185	$ 7,926
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization, and other	1,708	1,546
Share-based compensation expense	1,124	1,101
Provision for receivables	20	(27)
Deferred income taxes	(125)	229
Excess tax benefits from share-based compensation	(125)	(103)
(Gains) losses on divestitures, investments and other, net	156	(279)
Change in operating assets and liabilities, net of effects of acquisitions and divestitures:
Accounts receivable	1,253	1,412
Inventories	(149)	189
Financing receivables	(773)	(296)
Other assets	140	(94)
Accounts payable	149	(114)
Income taxes, net	(112)	(723)
Accrued compensation	(154)	(318)
Deferred revenue	592	7
Other liabilities	(1,014)	(704)
Net cash provided by operating activities	9,875	9,752
Cash flows from investing activities:
Purchases of investments	(35,562)	(36,366)
Proceeds from sales of investments	24,414	23,806
Proceeds from maturities of investments	8,390	11,790
Acquisition of businesses, net of cash and cash equivalents acquired	(3,211)	(3,161)
Proceeds from business divestiture	0	372
Purchases of investments in privately held companies	(172)	(202)
Return of investments in privately held companies	168	74
Acquisition of property and equipment	(756)	(880)
Proceeds from sales of property and equipment	6	11
Other	35	(195)
Net cash used in investing activities	(6,688)	(4,751)
Cash flows from financing activities:
Issuances of common stock	418	771
Repurchases of common stock—repurchase program	(2,516)	(3,154)
Shares repurchased for tax withholdings on vesting of restricted stock units	(497)	(469)
Short-term borrowings, original maturities less than 90 days, net	2,000	(4)
Issuances of debt	6,232	6,978
Repayments of debt	(4,151)	(3,863)
Excess tax benefits from share-based compensation	125	103
Dividends paid	(4,063)	(3,441)
Other	(250)	96
Net cash used in financing activities	(2,702)	(2,983)
Net increase in cash and cash equivalents	485	2,018
Cash and cash equivalents, beginning of period	7,631	6,877
Cash and cash equivalents, end of period	8,116	8,895
Supplemental cash flow information:
Cash paid for interest	727	691
Cash paid for income taxes, net	$ 2,159	$ 2,093