Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Oct. 27, 2018	Oct. 28, 2017
Cash flows from operating activities:
Net income	$ 3,549	$ 2,394
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization, and other	465	566
Share-based compensation expense	403	392
Provision (benefit) for receivables	8	(17)
Deferred income taxes	(72)	178
(Gains) losses on divestitures, investments and other, net	7	(56)
Change in operating assets and liabilities, net of effects of acquisitions and divestitures:
Accounts receivable	892	957
Inventories	(34)	(80)
Financing receivables	273	(333)
Other assets	(295)	8
Accounts payable	(153)	(235)
Income taxes, net	(437)	(419)
Accrued compensation	(348)	(215)
Deferred revenue	(309)	77
Other liabilities	(186)	(137)
Net cash provided by operating activities	3,763	3,080
Cash flows from investing activities:
Purchases of investments	(484)	(8,275)
Proceeds from sales of investments	2,805	2,682
Proceeds from maturities of investments	2,541	3,929
Acquisition of businesses, net of cash and cash equivalents acquired	(1,964)	(725)
Purchases of investments in privately held companies	(29)	(20)
Return of investments in privately held companies	16	81
Acquisition of property and equipment	(212)	(168)
Proceeds from sales of property and equipment	2	1
Other	0	(10)
Net cash provided by (used in) investing activities	2,675	(2,505)
Cash flows from financing activities:
Issuances of common stock	8	9
Repurchases of common stock—repurchase program	(5,076)	(1,686)
Shares repurchased for tax withholdings on vesting of restricted stock units	(318)	(342)
Short-term borrowings, original maturities of 90 days or less, net	0	(2,498)
Issuances of debt	0	5,482
Repayments of debt	0	(748)
Dividends paid	(1,500)	(1,436)
Other	(59)	(31)
Net cash used in financing activities	(6,945)	(1,250)
Net increase (decrease) in cash, cash equivalents, and restricted cash	(507)	(675)
Cash, cash equivalents, and restricted cash, beginning of period	8,993	11,773
Cash, cash equivalents, and restricted cash, end of period	8,486	11,098
Supplemental cash flow information:
Cash paid for interest	269	283
Cash paid for income taxes, net	$ 869	$ 810