Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Jul. 28, 2018	Jul. 29, 2017	Jul. 30, 2016
Cash flows from operating activities:
Net income	$ 110	$ 9,609	$ 10,739
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization, and other	2,192	2,286	2,150
Share-based compensation expense	1,576	1,526	1,458
Provision (benefit) for receivables	(134)	(8)	(9)
Deferred income taxes	900	(124)	(194)
Excess tax benefits from share-based compensation	0	(153)	(129)
(Gains) losses on divestitures, investments and other, net	(322)	154	(317)
Change in operating assets and liabilities, net of effects of acquisitions and divestitures:
Accounts receivable	(269)	756	(404)
Inventories	(244)	(394)	315
Financing receivables	(219)	(1,038)	(150)
Other assets	66	15	(37)
Accounts payable	504	311	(65)
Income taxes, net	8,118	60	(300)
Accrued compensation	100	(110)	(101)
Deferred revenue	1,205	1,683	1,219
Other liabilities	83	(697)	(605)
Net cash provided by operating activities	13,666	13,876	13,570
Cash flows from investing activities:
Purchases of investments	(14,285)	(42,702)	(46,760)
Proceeds from sales of investments	17,706	28,827	28,778
Proceeds from maturities of investments	15,769	12,143	14,115
Acquisition of businesses, net of cash and cash equivalents acquired	(3,006)	(3,324)	(3,161)
Proceeds from business divestitures	27	0	372
Purchases of investments in privately held companies	(267)	(222)	(256)
Return of investments in privately held companies	168	203	91
Acquisition of property and equipment	(834)	(964)	(1,146)
Proceeds from sales of property and equipment	59	7	41
Other	(13)	39	(191)
Net cash provided by (used in) investing activities	15,324	(5,993)	(8,117)
Cash flows from financing activities:
Issuances of common stock	623	708	1,127
Repurchases of common stock - repurchase program	(17,547)	(3,685)	(3,909)
Shares repurchased for tax withholdings on vesting of restricted stock units	(703)	(619)	(557)
Short-term borrowings, original maturities of 90 days or less, net	(2,502)	2,497	(4)
Issuances of debt	6,877	6,980	6,978
Repayments of debt	(12,375)	(4,151)	(3,863)
Excess tax benefits from share-based compensation	0	153	129
Dividends paid	(5,968)	(5,511)	(4,750)
Other	(169)	(178)	150
Net cash used in financing activities	(31,764)	(3,806)	(4,699)
Net (decrease) increase in cash and cash equivalents	(2,774)	4,077	754
Cash and cash equivalents, beginning of fiscal year	11,708	7,631	6,877
Cash and cash equivalents, end of fiscal year	8,934	11,708	7,631
Supplemental cash flow information:
Cash paid for interest	910	897	859
Cash paid for income taxes, net	$ 3,911	$ 2,742	$ 2,675