Consolidated Statements Of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Jul. 29, 2017	Jul. 30, 2016	Jul. 25, 2015
Cash flows from operating activities:
Net income	$ 9,609	$ 10,739	$ 8,981
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization, and other	2,286	2,150	2,442
Share-based compensation expense	1,526	1,458	1,440
Provision for receivables	(8)	(9)	134
Deferred income taxes	(124)	(194)	(23)
Excess tax benefits from share-based compensation	(153)	(129)	(128)
(Gains) losses on divestitures, investments and other, net	154	(317)	(258)
Change in operating assets and liabilities, net of effects of acquisitions and divestitures:
Accounts receivable	756	(404)	(413)
Inventories	(394)	315	(116)
Financing receivables	(1,038)	(150)	(634)
Other assets	15	(37)	(370)
Accounts payable	311	(65)	87
Income taxes, net	60	(300)	53
Accrued compensation	(110)	(101)	7
Deferred revenue	1,683	1,219	1,275
Other liabilities	(697)	(605)	75
Net cash provided by operating activities	13,876	13,570	12,552
Cash flows from investing activities:
Purchases of investments	(42,702)	(46,760)	(43,975)
Proceeds from sales of investments	28,827	28,778	20,237
Proceeds from maturities of investments	12,143	14,115	15,293
Acquisition of businesses, net of cash and cash equivalents acquired	(3,324)	(3,161)	(326)
Proceeds from business divestiture	0	372	0
Purchases of investments in privately held companies	(222)	(256)	(222)
Return of investments in privately held companies	203	91	288
Acquisition of property and equipment	(964)	(1,146)	(1,227)
Proceeds from sales of property and equipment	7	41	22
Other	39	(191)	(178)
Net cash used in investing activities	(5,993)	(8,117)	(10,088)
Cash flows from financing activities:
Issuances of common stock	708	1,127	2,016
Repurchases of common stock - repurchase program	(3,685)	(3,909)	(4,324)
Shares repurchased for tax withholdings on vesting of restricted stock units	(619)	(557)	(502)
Short-term borrowings, original maturities less than 90 days, net	2,497	(4)	(4)
Issuances of debt	6,980	6,978	4,981
Repayments of debt	(4,151)	(3,863)	(508)
Excess tax benefits from share-based compensation	153	129	128
Dividends paid	(5,511)	(4,750)	(4,086)
Other	(178)	150	(14)
Net cash used in financing activities	(3,806)	(4,699)	(2,313)
Net increase in cash and cash equivalents	4,077	754	151
Cash and cash equivalents, beginning of fiscal year	7,631	6,877	6,726
Cash and cash equivalents, end of fiscal year	11,708	7,631	6,877
Supplemental cash flow information:
Cash paid for interest	897	859	760
Cash paid for income taxes, net	$ 2,742	$ 2,675	$ 2,190