Consolidated Statements Of Cash Flows (USD $) In Millions, unless otherwise specified	9 Months Ended
	Apr. 26, 2014	Apr. 27, 2013
Cash flows from operating activities:
Net income	$ 5,606	$ 7,713
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization, and other	1,811	1,851
Share-based compensation expense	1,009	880
Provision for receivables	48	46
Deferred income taxes	(181)	48
Excess tax benefits from share-based compensation	(84)	(48)
(Gains) losses on investments and other, net	(228)	(68)
Change in operating assets and liabilities, net of effects of acquisitions and divestitures:
Accounts receivable	1,064	(439)
Inventories	(50)	238
Financing receivables	332	(448)
Other assets	180	(41)
Accounts payable	(2)	91
Income taxes, net	(356)	(642)
Accrued compensation	(411)	(48)
Deferred revenue	(309)	(169)
Other liabilities	291	(56)
Net cash provided by operating activities	8,720	8,908
Cash flows from investing activities:
Purchases of investments	(27,884)	(23,969)
Proceeds from sales of investments	14,490	7,279
Proceeds from maturities of investments	12,048	13,234
Acquisition of property and equipment	(950)	(843)
Acquisition of businesses, net of cash and cash equivalents acquired	(2,784)	(6,371)
Purchases of investments in privately held companies	(315)	(140)
Return of investments in privately held companies	119	110
Proceeds from sales of property and equipment	168	57
Other	(30)	(10)
Net cash used in investing activities	(5,138)	(10,653)
Cash flows from financing activities:
Issuances of common stock	1,053	1,193
Repurchases of common stock - repurchase program	(7,965)	(1,554)
Shares repurchased for tax withholdings on vesting of restricted stock units	(345)	(249)
Short-term borrowings, original maturities less than 90 days, net	(2)	(20)
Issuances of debt	8,001	0
Repayments of debt	(3,274)	0
Excess tax benefits from share-based compensation	84	48
Dividends paid	(2,784)	(2,392)
Other	(34)	42
Net cash used in financing activities	(5,266)	(2,932)
Net decrease in cash and cash equivalents	(1,684)	(4,677)
Cash and cash equivalents, beginning of period	7,925	9,799
Cash and cash equivalents, end of period	6,241	5,122
Supplemental cash flow information:
Cash paid for interest	561	562
Cash paid for income taxes, net	$ 1,868	$ 1,236