Consolidated Statements Of Cash Flows - USD ($) $ in Millions	9 Months Ended
	Apr. 30, 2016	Apr. 25, 2015
Cash flows from operating activities:
Net income	$ 7,926	$ 6,662
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization, and other	1,546	1,799
Share-based compensation expense	1,101	1,044
Provision for receivables	(27)	82
Deferred income taxes	229	438
Excess tax benefits from share-based compensation	(103)	(102)
(Gains) losses on divestitures, investments and other, net	(279)	(231)
Change in operating assets and liabilities, net of effects of acquisitions and divestitures:
Accounts receivable	1,412	97
Inventories	189	(235)
Financing receivables	(296)	36
Other assets	(94)	(349)
Accounts payable	(114)	101
Income taxes, net	(723)	(511)
Accrued compensation	(318)	(324)
Deferred revenue	7	217
Other liabilities	(704)	(310)
Net cash provided by operating activities	9,752	8,414
Cash flows from investing activities:
Purchases of investments	(36,366)	(30,617)
Proceeds from sales of investments	23,806	13,890
Proceeds from maturities of investments	11,790	11,632
Acquisition of businesses, net of cash and cash equivalents acquired	(3,161)	(238)
Proceeds from Divestiture of Businesses	372	0
Purchases of investments in privately held companies	(202)	(155)
Return of investments in privately held companies	74	274
Acquisition of property and equipment	(880)	(907)
Proceeds from sales of property and equipment	11	8
Other	(195)	(115)
Net cash used in investing activities	(4,751)	(6,228)
Cash flows from financing activities:
Issuances of common stock	771	1,584
Repurchases of common stock—repurchase program	(3,154)	(3,325)
Shares repurchased for tax withholdings on vesting of restricted stock units	(469)	(415)
Short-term borrowings, original maturities less than 90 days, net	(4)	496
Proceeds from Issuance of Long-term Debt	6,978	0
Repayments of debt	(3,863)	(507)
Excess tax benefits from share-based compensation	103	102
Dividends paid	(3,441)	(3,017)
Other	96	40
Net cash used in financing activities	(2,983)	(5,042)
Net increase (decrease) in cash and cash equivalents	2,018	(2,856)
Cash and cash equivalents, beginning of period	6,877	6,726
Cash and cash equivalents, end of period	8,895	3,870
Supplemental cash flow information:
Cash paid for interest	691	646
Cash paid for income taxes, net	$ 2,093	$ 1,680