Cisco Systems (CSCO) 10-Q 22 May 14 2014 Q3 Quarterly report Financial data

Document_And_Entity_Informatio

Document And Entity Information	9 Months Ended
	Apr. 26, 2014	16-May-14
Document Information [Line Items]	'	'
Document Type	'10-Q	'
Amendment Flag	'false	'
Document Period End Date	26-Apr-14	'
Document Fiscal Period Focus	'Q3	'
Document Fiscal Year Focus	'2014	'
Trading Symbol	'CSCO	'
Entity Registrant Name	'CISCO SYSTEMS, INC.	'
Entity Central Index Key	'0000858877	'
Entity Current Reporting Status	'Yes	'
Current Fiscal Year End Date	'--07-26	'
Entity Filer Category	'Large Accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	5,122,689,670

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Apr. 26, 2014	Jul. 27, 2013
In Millions, unless otherwise specified
Current assets:	'	'
Cash and cash equivalents	$6,241	$7,925
Investments	44,228	42,685
Accounts receivable, net of allowance for doubtful accounts of $247 at April 26, 2014 and $228 at July 27, 2013	4,443	5,470
Inventories	1,528	1,476
Financing receivables, net	4,071	4,037
Deferred tax assets	2,504	2,616
Other current assets	1,273	1,312
Total current assets	64,288	65,521
Property and equipment, net	3,310	3,322
Financing receivables, net	3,537	3,911
Goodwill	24,076	21,919
Purchased intangible assets, net	3,461	3,403
Other assets	3,184	3,115
TOTAL ASSETS	101,856	101,191
Current liabilities:	'	'
Short-term debt	508	3,283
Accounts payable	1,051	1,029
Income taxes payable	0	192
Accrued compensation	2,813	3,182
Deferred revenue	9,198	9,262
Other current liabilities	4,945	5,048
Total current liabilities	18,515	21,996
Long-term debt	20,384	12,928
Income taxes payable	1,530	1,748
Deferred revenue	3,953	4,161
Other long-term liabilities	1,678	1,230
Total liabilities	46,060	42,063
Commitments and contingencies (Note 12)	'	'
Cisco shareholders' equity:	'	'
Preferred stock, no par value: 5 shares authorized; none issued and outstanding	0	0
Common stock and additional paid-in capital, $0.001 par value: 20,000 shares authorized; 5,116 and 5,389 shares issued and outstanding at April 26, 2014 and July 27, 2013, respectively	41,241	42,297
Retained earnings	13,849	16,215
Accumulated other comprehensive income	697	608
Total Cisco shareholders' equity	55,787	59,120
Noncontrolling interests	9	8
Total equity	55,796	59,128
TOTAL LIABILITIES AND EQUITY	$101,856	$101,191

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Apr. 26, 2014	Jul. 27, 2013
In Millions, except Per Share data, unless otherwise specified
Statement of Financial Position [Abstract]	'	'
Accounts receivable, net of allowance for doubtful accounts of $247 at April 26, 2014 and $228 at July 27, 2013	$247	$228
Preferred Stock, No Par Value	$0	$0
Preferred stock, shares authorized	5	5
Preferred stock, issued	0	0
Preferred stock, outstanding	0	0
Common stock, par value	$0.00	$0.00
Common stock, shares authorized	20,000	20,000
Common stock, shares issued	5,116	5,389
Common stock, shares outstanding	5,116	5,389

Consolidated_Statements_Of_Ope

Consolidated Statements Of Operations (USD $)	3 Months Ended		9 Months Ended
In Millions, except Per Share data, unless otherwise specified	Apr. 26, 2014	Apr. 27, 2013	Apr. 26, 2014	Apr. 27, 2013
REVENUE:	'	'	'	'
Product	$8,820	$9,559	$26,640	$28,293
Service	2,725	2,657	8,145	7,897
Total revenue	11,545	12,216	34,785	36,190
COST OF SALES:	'	'	'	'
Product	3,595	3,782	11,665	11,387
Service	944	923	2,756	2,710
Total cost of sales	4,539	4,705	14,421	14,097
GROSS MARGIN	7,006	7,511	20,364	22,093
OPERATING EXPENSES:	'	'	'	'
Research and development	1,565	1,542	4,701	4,425
Sales and marketing	2,342	2,375	7,030	7,178
General and administrative	460	530	1,426	1,674
Amortization of Purchased Intangible Assets	71	89	207	329
Restructuring and other charges	26	33	336	105
Total operating expenses	4,464	4,569	13,700	13,711
OPERATING INCOME	2,542	2,942	6,664	8,382
Interest income	170	162	508	483
Interest expense	-146	-145	-422	-440
Other income (loss), net	76	-14	187	-69
Interest and other income (loss), net	100	3	273	-26
INCOME BEFORE PROVISION FOR INCOME TAXES	2,642	2,945	6,937	8,356
Provision for income taxes	461	467	1,331	643
NET INCOME	$2,181	$2,478	$5,606	$7,713
Net income per share-basic (in dollars per share)	$0.42	$0.47	$1.06	$1.45
Net income per share-diluted (in dollars per share)	$0.42	$0.46	$1.06	$1.44
Shares used in per-share calculation-basic (in shares)	5,143	5,329	5,271	5,316
Shares used in per-share calculation-diluted (in shares)	5,180	5,387	5,311	5,361
Cash dividends declared per common share (in dollars per share)	$0.19	$0.17	$0.53	$0.45

Consolidated_Comprehensive_Inc

Consolidated Comprehensive Income (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Apr. 26, 2014	Apr. 27, 2013	Apr. 26, 2014	Apr. 27, 2013
Statement of Comprehensive Income [Abstract]	'	'	'	'
Net income	$2,181	$2,478	$5,606	$7,713
Change in net unrealized gains, net of tax benefit (expense) of $(8) and $(131) for the three and nine months ended April 26, 2014, respectively, and $38 and $(7) for the corresponding periods of fiscal 2013, respectively	-8	-63	209	10
Net gains reclassified into earnings, net of tax expense of $26 and $88 for the three and nine months ended April 26, 2014, respectively, and $2 and $16 for the corresponding periods of fiscal 2013, respectively	-43	-4	-146	-30
Total available-for-sale investments	-51	-67	63	-20
Change in unrealized gains and losses, net of tax benefit (expense) of $(1) and $(2) for the three and nine months ended April 26, 2014, respectively, and $1 and $(1) for the corresponding periods of fiscal 2013, respectively	13	-10	44	58
Net (gains) losses reclassified into earnings	-16	-4	-44	-7
Total cash flow hedging instruments	-3	-14	0	51
Net change in cumulative translation adjustment and other, net of tax benefit (expense) of $(5) for each of the three and nine months ended April 26, 2014, respectively, and $1 and $(14) for the corresponding periods of fiscal 2013, respectively	42	-128	27	-8
Other comprehensive (loss) income	-12	-209	90	23
Comprehensive income	2,169	2,269	5,696	7,736
Comprehensive (income) loss attributable to noncontrolling interests	6	0	-1	5
Comprehensive income attributable to Cisco Systems, Inc.	$2,175	$2,269	$5,695	$7,741

Consolidated_Comprehensive_Inc1

Consolidated Comprehensive Income (Parenthetical) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Apr. 26, 2014	Apr. 27, 2013	Apr. 26, 2014	Apr. 27, 2013
Other Comprehensive Income (Loss), Tax	'	'	'	'
Available-for-sale Securities, before Reclassification Adjustments, Tax	($8)	$38	($131)	($7)
Reclassification Adjustment for Sale of Securities Included in Net Income, Tax	26	2	88	16
Derivatives Qualifying as Hedges, Tax	-1	1	-2	-1
Foreign Currency Translation Adjustment, Tax	($5)	$1	($5)	($14)

Consolidated_Statements_Of_Cas

Consolidated Statements Of Cash Flows (USD $)	9 Months Ended
In Millions, unless otherwise specified	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

Consolidated_Statements_Of_Equ

Consolidated Statements Of Equity (USD $)	Total		Common Stock	Common Stock Including Additional Paid in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Parent	Noncontrolling Interest [Member]
In Millions, unless otherwise specified	USD ($)			USD ($)	USD ($)	USD ($)	USD ($)	USD ($)
Stockholders' Equity Attributable to Noncontrolling Interest at Jul. 28, 2012	'		'	'	'	'	'	$15
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest at Jul. 28, 2012	51,301		'	'	'	'	'	'
Stockholders' Equity Attributable to Parent at Jul. 28, 2012	'		'	39,271	11,354	661	51,286	'
Shares, Issued at Jul. 28, 2012	'		5,298	'	'	'	'	'
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'		'	'	'	'	'	'
Net income	7,713		'	'	7,713	'	7,713	'
Other Comprehensive Income (Loss), Net of Tax	23		'	'	'	28	28	-5
Stock Issued During Period, (In shares)	'		111	'	'	'	'	'
Stock Issued During Period, Value, New Issues	1,193		'	1,193	'	'	1,193	'
Repurchased Shares During Period ( In shares)	'		-81	'	'	'	'	'
Stock Repurchased During Period, Value	-1,613		'	-606	-1,007	'	-1,613	'
Shares Repurchased In Settlement Of Employee Tax Withholding Obligations ( In shares)	-13		-13	'	'	'	'	'
Adjustments Related to Tax Withholding for Share-based Compensation	-249		'	-249	'	'	-249	'
Cash dividends declared	-2,392		'	'	-2,392	'	-2,392	'
Tax effects from employee stock incentive plans	-120		'	-120	'	'	-120	'
Share-based Compensation, Requisite Service Period Recognition	880		'	880	'	'	880	'
Stock Issued During Period, Value, Acquisitions	62		'	62	'	'	62	'
Stockholders' Equity Attributable to Noncontrolling Interest at Apr. 27, 2013	'		'	'	'	'	'	10
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest at Apr. 27, 2013	56,798		'	'	'	'	'	'
Stockholders' Equity Attributable to Parent at Apr. 27, 2013	'		'	40,431	15,668	689	56,788	'
Shares, Issued at Apr. 27, 2013	'		5,315	'	'	'	'	'
Stockholders' Equity Attributable to Noncontrolling Interest at Jul. 27, 2013	8		'	'	'	'	'	8
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest at Jul. 27, 2013	59,128		'	'	'	'	'	'
Stockholders' Equity Attributable to Parent at Jul. 27, 2013	59,120		'	42,297	16,215	608	59,120	'
Shares, Issued at Jul. 27, 2013	'		5,389	'	'	'	'	'
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'		'	'	'	'	'	'
Net income	5,606		'	'	5,606	'	5,606	'
Other Comprehensive Income (Loss), Net of Tax	90		'	'	'	89	89	1
Stock Issued During Period, (In shares)	'		100	'	'	'	'	'
Stock Issued During Period, Value, New Issues	1,053		'	1,053	'	'	1,053	'
Repurchased Shares During Period ( In shares)	-359	[1]	-359	'	'	'	'	'
Stock Repurchased During Period, Value	-8,025		'	-2,837	-5,188	'	-8,025	'
Shares Repurchased In Settlement Of Employee Tax Withholding Obligations ( In shares)	-14		-14	'	'	'	'	'
Adjustments Related to Tax Withholding for Share-based Compensation	-345		'	-345	'	'	-345	'
Cash dividends declared	-2,784		'	'	-2,784	'	-2,784	'
Tax effects from employee stock incentive plans	16		'	16	'	'	16	'
Share-based Compensation, Requisite Service Period Recognition	1,009		'	1,009	'	'	1,009	'
Stock Issued During Period, Value, Acquisitions	48		'	48	'	'	48	'
Stockholders' Equity Attributable to Noncontrolling Interest at Apr. 26, 2014	9		'	'	'	'	'	9
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest at Apr. 26, 2014	55,796		'	'	'	'	'	'
Stockholders' Equity Attributable to Parent at Apr. 26, 2014	$55,787		'	$41,241	$13,849	$697	$55,787	'
Shares, Issued at Apr. 26, 2014	'		5,116	'	'	'	'	'
[1]	Includes stock repurchases of $60 million, which were pending settlement as of AprilB 26, 2014. There were no stock repurchases pending settlement as of JulyB 27, 2013.

Recovered_Sheet1

Consolidated Statements of Equity (Parenthetical) (USD $)	9 Months Ended
	Apr. 26, 2014	Apr. 27, 2013
Common Stock, Dividends, Per Share, Declared	$0.53	$0.45

Supplemental_Information

Supplemental Information	9 Months Ended
	Apr. 26, 2014
Stockholders' Equity Note [Abstract]	'
Treasury Stock [Text Block]	'
	In September 2001, the Company’s Board of Directors authorized a stock repurchase program. As of April 26, 2014, the Company’s Board of Directors had authorized an aggregate repurchase of up to $97 billion of common stock under this program, with no termination date. The stock repurchases since the inception of this program and the related impacts on Cisco shareholders’ equity are summarized in the following table (in millions):
		Shares of Common Stock	Common Stock and Additional Paid-In Capital		Retained Earnings		Total Cisco Shareholders’ Equity
	Repurchases of common stock under the repurchase program	4,227	$	20,839	$	66,092	$	86,931

Basis_Of_Presentation

Basis Of Presentation	9 Months Ended
	Apr. 26, 2014
Basis Of Presentation [Abstract]	'
Basis Of Presentation	'
	1	Basis of Presentation
	The fiscal year for Cisco Systems, Inc. (the “Company” or “Cisco”) is the 52 or 53 weeks ending on the last Saturday in July. Fiscal 2014 and fiscal 2013 are each 52-week fiscal years. The Consolidated Financial Statements include the accounts of Cisco and its subsidiaries. All significant intercompany accounts and transactions have been eliminated. The Company conducts business globally and is primarily managed on a geographic basis in the following three geographic segments: the Americas; Europe, Middle East, and Africa (EMEA); and Asia Pacific, Japan, and China (APJC).
	The accompanying financial data as of April 26, 2014 and for the three and nine months ended April 26, 2014 and April 27, 2013 has been prepared by the Company, without audit, pursuant to the rules and regulations of the U.S. Securities and Exchange Commission (SEC). Certain information and footnote disclosures normally included in financial statements prepared in accordance with generally accepted accounting principles in the United States (GAAP) have been condensed or omitted pursuant to such rules and regulations. The July 27, 2013 Consolidated Balance Sheet was derived from audited financial statements, but does not include all disclosures required by accounting principles generally accepted in the United States. However, the Company believes that the disclosures are adequate to make the information presented not misleading. These Consolidated Financial Statements should be read in conjunction with the Consolidated Financial Statements and the notes thereto included in the Company’s Annual Report on Form 10-K for the fiscal year ended July 27, 2013.
	The Company consolidates its investments in a venture fund managed by SOFTBANK Corp. and its affiliates (“SOFTBANK”) as this is a variable interest entity and the Company is the primary beneficiary. The noncontrolling interests attributed to SOFTBANK are presented as a separate component from the Company’s equity in the equity section of the Consolidated Balance Sheets. SOFTBANK’s share of the earnings in the venture fund are not presented separately in the Consolidated Statements of Operations as these amounts are not material for any of the fiscal periods presented.
	In the opinion of management, all adjustments (which include normal recurring adjustments, except as disclosed herein) necessary to present fairly the statement of financial position as of April 26, 2014; the results of operations and statements of comprehensive income for the three and nine months ended April 26, 2014 and April 27, 2013; and the statements of cash flows and equity for the nine months ended April 26, 2014 and April 27, 2013, as applicable, have been made. The results of operations for the three and nine months ended April 26, 2014 are not necessarily indicative of the operating results for the full fiscal year or any future periods.
	Certain reclassifications have been made to prior-period amounts in order to conform to the current period’s presentation. The Company has evaluated subsequent events through the date that the financial statements were issued.

Recent_Accounting_Pronouncemen

Recent Accounting Pronouncements	9 Months Ended
	Apr. 26, 2014
Accounting Policies [Abstract]	'
Recent Accounting Pronouncements	'
	2	Recent Accounting Pronouncements
	(a)	New Accounting Updates Recently Adopted
	In December 2011, the Financial Accounting Standards Board (FASB) issued an accounting standard update requiring enhanced disclosures about certain financial instruments and derivative instruments that are offset in the statement of financial position or that are subject to enforceable master netting arrangements or similar agreements. This accounting standard became effective for the Company in the first quarter of fiscal 2014. As a result of the application of this accounting standard update, the Company has provided additional disclosures in Note 11.
	In July 2012, the FASB issued an accounting standard update intended to simplify how an entity tests indefinite-lived intangible assets other than goodwill for impairment by providing entities with an option to perform a qualitative assessment to determine whether further impairment testing is necessary. This accounting standard update became effective for the Company beginning in the first quarter of fiscal 2014, and its adoption did not have any impact on the Company’s Consolidated Financial Statements.
	In February 2013, the FASB issued an accounting standard update to require reclassification adjustments from other comprehensive income to be presented either in the financial statements or in the notes to the financial statements. This accounting standard became effective for the Company in the first quarter of fiscal 2014. As a result of the application of this accounting standard update, the Company has provided additional disclosures in Note 15.
	(b)	Recent Accounting Standards or Updates Not Yet Effective
	In March 2013, the FASB issued an accounting standard update requiring an entity to release into net income the entire amount of a cumulative translation adjustment related to its investment in a foreign entity when as a parent it either sells a part or all of its investment in the foreign entity or no longer holds a controlling financial interest in a subsidiary or group of assets within the foreign entity. This accounting standard update will be effective for the Company beginning in the first quarter of fiscal 2015. The Company is currently evaluating the impact of this accounting standard update on its Consolidated Financial Statements.
	In July 2013, the FASB issued an accounting standard update that provides explicit guidance on the financial statement presentation of an unrecognized tax benefit when a net operating loss carryforward or a tax credit carryforward exists. Under the new standard update, an unrecognized tax benefit, or a portion of an unrecognized tax benefit, is to be presented in the financial statements as a reduction to a deferred tax asset for a net operating loss carryforward or a tax credit carryforward. This accounting standard update will be effective for the Company beginning in the first quarter of fiscal 2015 and applied prospectively with early adoption permitted. The Company is currently evaluating the impact of this accounting standard update on its Consolidated Financial Statements.
	In April 2014, the FASB issued an accounting standard update that changes the criteria for reporting discontinued operations. Under the accounting standard update, a disposal of a component of an entity or a group of components of an entity is required to be reported in discontinued operations if the disposal represents a strategic shift that has, or will have, a major effect on an entity's operations and financial results when either it qualifies as held for sale, disposed of by sale, or disposed of other than by sale. This accounting standard update will be effective for the Company beginning in the first quarter of fiscal 2016. The Company is currently evaluating the impact of this accounting standard update on its Consolidated Financial Statements.

Business_Combinations

Business Combinations	9 Months Ended
	Apr. 26, 2014
Business Combinations [Abstract]	'
Business Combinations	'
	3	Business Combinations
	(a)	Acquisition Summary
	The Company completed five business combinations during the nine months ended April 26, 2014. A summary of the allocation of the total purchase consideration is presented as follows (in millions):
		Purchase Consideration		Net Tangible Assets Acquired (Liabilities Assumed)			Purchased Intangible Assets		Goodwill
	Composite Software, Inc.	$	160	$	(10	)	$	75	$	95
	Sourcefire, Inc.	2,449		81			577		1,791
	WhipTail Technologies, Inc.	351		(34		)	105		280
	All others (2 in total)	10		(2		)	6		6
	Total	$	2,970	$	35		$	763	$	2,172
	On July 29, 2013, the Company completed its acquisition of privately held Composite Software, Inc. (“Composite Software”), a provider of data virtualization software and services. Composite Software provides technology that connects many types of data from across the network and makes it appear as if the data is in one place. With its acquisition of Composite Software, the Company intends to extend its next-generation services platform by connecting data and infrastructure. Revenue from the Composite Software acquisition has been included in the Company's Services category.
	On October 7, 2013, the Company completed its acquisition of Sourcefire, Inc. (“Sourcefire”), a leader in intelligent cybersecurity solutions. Sourcefire delivers innovative, highly automated security through continuous awareness, threat detection, and protection across its portfolio, including next-generation intrusion prevention systems, next-generation firewalls, and advanced malware protection. With the Sourcefire acquisition, the Company aims to accelerate its security strategy of defending, discovering, and remediating advanced threats to provide continuous security solutions to the Company’s customers in more places across the network. Product revenue from the Sourcefire acquisition has been included in the Company's Security product category.
	On October 28, 2013, the Company completed its acquisition of privately held WhipTail Technologies, Inc. (“WhipTail”), a leader in high performance, scalable solid state memory systems that enable organizations to simplify data center and virtualized environments and process more data in less time. With its WhipTail acquisition, the Company aims to strengthen its Unified Computing System (UCS) strategy and enhance application performance by integrating scalable solid state memory into the UCS’s fabric computing architecture. Product revenue from the WhipTail acquisition has been included in the Company's Data Center product category.
	The total purchase consideration related to the Company’s business combinations completed during the nine months ended April 26, 2014 consisted of either cash consideration or cash consideration along with vested share-based awards assumed. The total cash and cash equivalents acquired from these business combinations was approximately $132 million. Total transaction costs related to the Company’s business combination activities were $7 million and $23 million for the nine months ended April 26, 2014 and April 27, 2013, respectively. These transaction costs were expensed as incurred in general and administrative (G&A) expenses in the Consolidated Statements of Operations.
	The Company’s purchase price allocation for business combinations completed during recent periods is preliminary and subject to revision as additional information about fair value of assets and liabilities becomes available. Additional information, which existed as of the acquisition date but at that time was unknown to the Company, may become known to the Company during the remainder of the measurement period, a period not to exceed 12 months from the acquisition date. Adjustments in the purchase price allocation may require a recasting of the amounts allocated to goodwill retroactive to the period in which the acquisition occurred.
	The goodwill generated from the Company’s business combinations completed during the nine months ended April 26, 2014 is primarily related to expected synergies. The goodwill is generally not deductible for income tax purposes.
	The Consolidated Financial Statements include the operating results of each business combination from the date of acquisition. Pro forma results of operations for the acquisitions completed during the nine months ended April 26, 2014 have not been presented because the effects of the acquisitions, individually and in the aggregate, were not material to the Company’s financial results.
	(b)	Insieme Networks, Inc.
	In the second quarter of fiscal 2014, the Company acquired the remaining interest in Insieme Networks, Inc. See Note 12.

Goodwill_And_Purchased_Intangi

Goodwill And Purchased Intangible Assets	9 Months Ended
	Apr. 26, 2014
Goodwill and Intangible Assets Disclosure [Abstract]	'
Goodwill And Purchased Intangible Assets	'
	4	Goodwill and Purchased Intangible Assets
	(a)	Goodwill
	The following table presents the goodwill allocated to the Company’s reportable segments as of and during the nine months ended April 26, 2014 (in millions):
			Balance at				Acquisitions				Other				Balance at April 26, 2014
			July 27, 2013
	Americas		$	13,800			$	1,198			$	(12	)		$	14,986
	EMEA		5,037				638				(3		)		5,672
	APJC		3,082				336				—				3,418
	Total		$	21,919			$	2,172			$	(15	)		$	24,076
	(b)	Purchased Intangible Assets
	The following table presents details of the Company’s intangible assets acquired through business combinations completed during the nine months ended April 26, 2014 (in millions, except years):
		FINITE LIVES																INDEFINITE LIVES		TOTAL
		TECHNOLOGY						CUSTOMER RELATIONSHIPS						OTHER				IPR&D
		Weighted-Average Useful Life (in Years)		Amount				Weighted-Average Useful Life (in Years)		Amount				Weighted-Average Useful Life (in Years)		Amount		Amount		Amount
	Composite Software, Inc.	6		$	60			3.9		$	14			0		$	—	$	1	$	75
	Sourcefire, Inc.	7		400				5		129				3		26		22		577
	WhipTail Technologies, Inc.	5		63				5		1				2.7		3		38		105
	All other acquisitions	3		6				0		—				0		—		—		6
	Total			$	529					$	144					$	29	$	61	$	763
	The following tables present details of the Company’s purchased intangible assets (in millions):
	April 26, 2014		Gross				Accumulated Amortization				Net
	Purchased intangible assets with finite lives:
	Technology		$	4,117			$	(1,885	)		$	2,232
	Customer relationships		1,698				(653		)		1,045
	Other		56				(16		)		40
	Total purchased intangible assets with finite lives		5,871				(2,554		)		3,317
	In-process research and development, with indefinite lives		144				—				144
	Total		$	6,015			$	(2,554	)		$	3,461
	July 27, 2013		Gross				Accumulated Amortization				Net
	Purchased intangible assets with finite lives:
	Technology		$	3,563			$	(1,366	)		$	2,197
	Customer relationships		1,566				(466		)		1,100
	Other		30				(10		)		20
	Total purchased intangible assets with finite lives		5,159				(1,842		)		3,317
	In-process research and development, with indefinite lives		86				—				86
	Total		$	5,245			$	(1,842	)		$	3,403
	Purchased intangible assets include intangible assets acquired through business combinations as well as through direct purchases or licenses.
	The following table presents the amortization of purchased intangible assets (in millions):
		Three Months Ended								Nine Months Ended
		April 26,				April 27,				April 26,				April 27,
		2014				2013				2014				2013
	Amortization of purchased intangible assets:
	Cost of sales	$	190			$	156			$	553			$	444
	Operating expenses	71				89				207				329
	Total	$	261			$	245			$	760			$	773
	There were no impairment charges related to purchased intangible assets during the periods presented.
	The estimated future amortization expense of purchased intangible assets with finite lives as of April 26, 2014 is as follows (in millions):
	Fiscal Year		Amount
	2014 (remaining three months)		$	259
	2015		959
	2016		726
	2017		550
	2018		398
	Thereafter		425
	Total		$	3,317

Restructuring_And_Other_Charge

Restructuring And Other Charges	9 Months Ended
	Apr. 26, 2014
Restructuring and Related Activities [Abstract]	'
Restructuring and Other Charges	'
	5	Restructuring and Other Charges
	August Fiscal 2014 Plan
	In August 2013, the Company announced a workforce reduction plan that will impact up to 4,000 employees, or 5%, of the Company’s global workforce. This workforce reduction plan is designed to enable the Company to rebalance its workforce in order to reinvest in key growth areas such as the cloud, data center, mobility, services, software, and security and to drive operational efficiencies. As the Company intends to reinvest in the above areas, it does not expect significant overall cost savings as a result of this rebalancing of its resources.
	In connection with this restructuring action, the Company incurred charges of $26 million and $336 million for the three and nine months ended April 26, 2014. The Company expects total pre-tax charges pursuant to these restructuring actions not to exceed $500 million, and that substantially all of the remaining charges will be incurred in the fourth quarter of fiscal 2014.
	The following table summarizes the activities related to the restructuring and other charges pursuant to the August Fiscal 2014 Plan (in millions):
	August Fiscal 2014 Plan		Employee			Other			Total
			Severance
	Gross charges in fiscal 2014		$	331		$	5		$	336
	Cash payments		(306		)	—			(306		)
	Non-cash items		—			(5		)	(5		)
	Liability as of April 26, 2014		$	25		$	—		$	25
	Fiscal 2011 Plans
	The Fiscal 2011 Plans consist primarily of the realignment and restructuring of the Company’s business announced in July 2011 and of certain consumer product lines as announced during April 2011. The Company completed the Fiscal 2011 Plans at the end of fiscal 2013 and does not expect any remaining charges related to these actions. The Company incurred cumulative charges of approximately $1.1 billion in connection with these plans. For the three and nine months ended April 27, 2013, such charges were $33 million and $105 million. The remaining liability balance as of April 26, 2014 was $4 million inclusive of severance and non-severance activities.

Balance_Sheet_Details

Balance Sheet Details	9 Months Ended
	Apr. 26, 2014
Disclosure Balance Sheet Details [Abstract]	'
Balance Sheet Details	'
	6	Balance Sheet Details
	The following tables provide details of selected balance sheet items (in millions):
			April 26,			July 27,
			2014			2013
	Inventories:
	Raw materials		$	57		$	105
	Work in process		5			24
	Finished goods:
	Distributor inventory and deferred cost of sales		623			572
	Manufactured finished goods		550			480
	Total finished goods		1,173			1,052
	Service-related spares		255			256
	Demonstration systems		38			39
	Total		$	1,528		$	1,476
	Property and equipment, net:
	Land, buildings, and building and leasehold improvements		$	4,496		$	4,426
	Computer equipment and related software		1,442			1,416
	Production, engineering, and other equipment		5,750			5,721
	Operating lease assets (1)		360			326
	Furniture and fixtures		508			497
			12,556			12,386
	Less accumulated depreciation and amortization (1)		(9,246		)	(9,064		)
	Total		$	3,310		$	3,322
	(1)      Accumulated depreciation related to operating lease assets was $198 and $203 as of April 26, 2014 and July 27, 2013, respectively.
	Other assets:
	Deferred tax assets		$	1,540		$	1,539
	Investments in privately held companies		923			833
	Other		721			743
	Total		$	3,184		$	3,115
	Deferred revenue:
	Service		$	8,746		$	9,403
	Product:
	Unrecognized revenue on product shipments and other deferred revenue		3,669			3,340
	Cash receipts related to unrecognized revenue from two-tier distributors		736			680
	Total product deferred revenue		4,405			4,020
	Total		$	13,151		$	13,423
	Reported as:
	Current		$	9,198		$	9,262
	Noncurrent		3,953			4,161
	Total		$	13,151		$	13,423

Financing_Receivables_And_Guar

Financing Receivables And Guarantees	9 Months Ended
	Apr. 26, 2014
Financing Receivables And Guarantees [Abstract]	'
Financing Receivables And Guarantees	'
	7	Financing Receivables and Guarantees
	(a)	Financing Receivables
	Financing receivables primarily consist of lease receivables, loan receivables, and financed service contracts and other. Lease receivables represent sales-type and direct-financing leases resulting from the sale of the Company’s and complementary third-party products and are typically collateralized by a security interest in the underlying assets. Loan receivables represent financing arrangements related to the sale of the Company’s products and services, which may include additional funding for other costs associated with network installation and integration of the Company’s products and services. Lease receivables consist of arrangements with terms of four years on average, while loan receivables generally have terms of up to three years. The financed service contracts and other category includes financing receivables related to technical support and advanced services, as well as receivables related to financing of certain indirect costs associated with leases. Revenue related to the technical support services is typically deferred and included in deferred service revenue and is recognized ratably over the period during which the related services are to be performed, which typically ranges from one to three years.
	A summary of the Company’s financing receivables is presented as follows (in millions):
	April 26, 2014	Lease Receivables			Loan Receivables			Financed Service Contracts and Other			Total Financing Receivables
	Gross	$	3,783		$	1,621		$	2,810		$	8,214
	Unearned income	(246		)	—			—			(246		)
	Allowance for credit loss	(249		)	(92		)	(19		)	(360		)
	Total, net	$	3,288		$	1,529		$	2,791		$	7,608
	Reported as:
	Current	$	1,480		$	814		$	1,777		$	4,071
	Noncurrent	1,808			715			1,014			3,537
	Total, net	$	3,288		$	1,529		$	2,791		$	7,608
	July 27, 2013	Lease Receivables			Loan Receivables			Financed Service Contracts and Other			Total Financing Receivables
	Gross	$	3,780		$	1,649		$	3,136		$	8,565
	Unearned income	(273		)	—			—			(273		)
	Allowance for credit loss	(238		)	(86		)	(20		)	(344		)
	Total, net	$	3,269		$	1,563		$	3,116		$	7,948
	Reported as:
	Current	$	1,418		$	898		$	1,721		$	4,037
	Noncurrent	1,851			665			1,395			3,911
	Total, net	$	3,269		$	1,563		$	3,116		$	7,948
	As of April 26, 2014 and July 27, 2013, the deferred service revenue related to the financed service contracts and other was $1,592 million and $2,036 million, respectively.
	Contractual maturities of the gross lease receivables at April 26, 2014 are summarized as follows (in millions):
	Fiscal Year		Amount
	2014 (remaining three months)		$	589
	2015		1,471
	2016		971
	2017		524
	2018		194
	Thereafter		34
	Total		$	3,783
	Actual cash collections may differ from the contractual maturities due to early customer buyouts, refinancings, or defaults.
	(b)	Credit Quality of Financing Receivables
	Financing receivables categorized by the Company’s internal credit risk rating as of April 26, 2014 and July 27, 2013 are summarized as follows (in millions):
		INTERNAL CREDIT RISK RATING
	April 26, 2014	1 to 4			5 to 6			7 and Higher			Total			Residual Value		Gross Receivables,
																Net of Unearned Income
	Lease receivables	$	1,604		$	1,557		$	133		$	3,294		$	243	$	3,537
	Loan receivables	894			595			132			1,621			—		1,621
	Financed service contracts and other	1,569			1,160			81			2,810			—		2,810
	Total	$	4,067		$	3,312		$	346		$	7,725		$	243	$	7,968
		INTERNAL CREDIT RISK RATING
	July 27, 2013	1 to 4			5 to 6			7 and Higher			Total			Residual Value		Gross Receivables,
																Net of Unearned Income
	Lease receivables	$	1,681		$	1,482		$	93		$	3,256		$	251	$	3,507
	Loan receivables	842			777			30			1,649			—		1,649
	Financed service contracts and other	1,876			1,141			119			3,136			—		3,136
	Total	$	4,399		$	3,400		$	242		$	8,041		$	251	$	8,292
	The Company determines the adequacy of its allowance for credit loss by assessing the risks and losses inherent in its financing receivables by portfolio segment. The portfolio segment is based on the types of financing offered by the Company to its customers, which consist of the following: lease receivables, loan receivables, and financed service contracts and other.
	The Company’s internal credit risk ratings of 1 through 4 correspond to investment-grade ratings, while credit risk ratings of 5 and 6 correspond to non-investment grade ratings. Credit risk ratings of 7 and higher correspond to substandard ratings.
	In circumstances when collectibility is not deemed reasonably assured, the associated revenue is deferred in accordance with the Company’s revenue recognition policies, and the related allowance for credit loss, if any, is included in deferred revenue. The Company also records deferred revenue associated with financing receivables when there are remaining performance obligations, as it does for financed service contracts. Total allowances for credit loss and deferred revenue as of April 26, 2014 and July 27, 2013 were $1,989 million and $2,453 million, respectively, and they were associated with financing receivables (net of unearned income) of $7,968 million and $8,292 million as of their respective period ends.
	The following tables present the aging analysis of financing receivables as of April 26, 2014 and July 27, 2013 (in millions):
		DAYS PAST DUE (INCLUDES BILLED AND UNBILLED)
	26-Apr-14	31-60			61-90			91+			Total Past Due			Current		Gross Receivables,		Nonaccrual Financing Receivables		Impaired Financing Receivables
																Net of Unearned Income
	Lease receivables	$	83		$	41		$	165		$	289		$	3,248	$	3,537	$	67	$	54
	Loan receivables	5			6			15			26			1,595		1,621		8		8
	Financed service contracts and other	228			96			239			563			2,247		2,810		11		8
	Total	$	316		$	143		$	419		$	878		$	7,090	$	7,968	$	86	$	70
		DAYS PAST DUE (INCLUDES BILLED AND UNBILLED)
	27-Jul-13	31-60			61-90			91+			Total Past Due			Current		Gross Receivables,		Nonaccrual Financing Receivables		Impaired Financing Receivables
																Net of Unearned Income
Lease receivables	$	85		$	48		$	124		$	257		$	3,250	$	3,507	$	27	$	22
Loan receivables	6			3			11			20			1,629		1,649		11		9
Financed service contracts and other	75			48			392			515			2,621		3,136		18		11
Total	$	166		$	99		$	527		$	792		$	7,500	$	8,292	$	56	$	42
Past due financing receivables are those that are 31 days or more past due according to their contractual payment terms. The data in the preceding tables are presented by contract, and the aging classification of each contract is based on the oldest outstanding receivable, and therefore past due amounts also include unbilled and current receivables within the same contract. The balances of either unbilled or current financing receivables included in the category of 91 days plus past due for financing receivables were $295 million and $406 million as of April 26, 2014 and July 27, 2013, respectively.
As of April 26, 2014, the Company had financing receivables of $88 million, net of unbilled or current receivables from the same contract, that were in the category of 91 days plus past due but remained on accrual status. Such balance was $87 million as of July 27, 2013. A financing receivable may be placed on nonaccrual status earlier if, in management’s opinion, a timely collection of the full principal and interest becomes uncertain.
(c)	Allowance for Credit Loss Rollforward
The allowances for credit loss and the related financing receivables are summarized as follows (in millions):
	CREDIT LOSS ALLOWANCES
Three Months Ended April 26, 2014	Lease Receivables			Loan Receivables			Financed Service Contracts and Other			Total
Allowance for credit loss as of January 25, 2014	$	254		$	98		$	22		$	374
Provisions	(6		)	(10		)	(2		)	(18		)
Recoveries (write-offs), net	(1		)	4			(1		)	2
Foreign exchange and other	2			—			—			2
Allowance for credit loss as of April 26, 2014	$	249		$	92		$	19		$	360
Gross receivables as of April 26, 2014, net of unearned income	$	3,537		$	1,621		$	2,810		$	7,968
	CREDIT LOSS ALLOWANCES
Nine Months Ended April 26, 2014	Lease Receivables			Loan Receivables			Financed Service Contracts and Other			Total
Allowance for credit loss as of July 27, 2013	$	238		$	86		$	20		$	344
Provisions	9			5			—			14
Recoveries (write-offs), net	—			4			(1		)	3
Foreign exchange and other	2			(3		)	—			(1		)
Allowance for credit loss as of April 26, 2014	$	249		$	92		$	19		$	360
	CREDIT LOSS ALLOWANCES
Three Months Ended April 27, 2013	Lease Receivables			Loan Receivables			Financed Service Contracts and Other			Total
Allowance for credit loss as of January 26, 2013	$	247		$	101		$	13		$	361
Provisions	30			8			6			44
Recoveries (write-offs), net	(29		)	(15		)	—			(44		)
Foreign exchange and other	(3		)	(1		)	—			(4		)
Allowance for credit loss as of April 27, 2013	$	245		$	93		$	19		$	357
Gross receivables as of April 27, 2013, net of unearned income	$	3,478		$	1,671		$	2,924		$	8,073
	CREDIT LOSS ALLOWANCES
Nine Months Ended April 27, 2013	Lease Receivables			Loan Receivables			Financed Service Contracts and Other			Total
Allowance for credit loss as of July 28, 2012	$	247		$	122		$	11		$	380
Provisions	27			(15		)	8			20
Recoveries (write-offs), net	(29		)	(15		)	—			(44		)
Foreign exchange and other	—			1			—			1
Allowance for credit loss as of April 27, 2013	$	245		$	93		$	19		$	357
The Company assesses the allowance for credit loss related to financing receivables on either an individual or a collective basis. The Company considers various factors in evaluating lease and loan receivables and the earned portion of financed service contracts for possible impairment on an individual basis. These factors include the Company’s historical experience, credit quality and age of the receivable balances, and economic conditions that may affect a customer’s ability to pay. When the evaluation indicates that it is probable that all amounts due pursuant to the contractual terms of the financing agreement, including scheduled interest payments, are unable to be collected, the financing receivable is considered impaired. All such outstanding amounts, including any accrued interest, will be assessed and fully reserved at the customer level. The Company’s internal credit risk ratings are categorized as 1 through 10, with the lowest credit risk rating representing the highest quality financing receivables.
Typically, the Company also considers receivables with a risk rating of 8 or higher to be impaired and will include them in the individual assessment for allowance. These balances, as of April 26, 2014 and July 27, 2013, are presented under “(b) Credit Quality of Financing Receivables” above.
The Company evaluates the remainder of its financing receivables portfolio for impairment on a collective basis and records an allowance for credit loss at the portfolio segment level. When evaluating the financing receivables on a collective basis, the Company uses expected default frequency rates published by a major third-party credit-rating agency as well as its own historical loss rate in the event of default, while also systematically giving effect to economic conditions, concentration of risk, and correlation.
(d)	Financing Guarantees
In the ordinary course of business, the Company provides financing guarantees for various third-party financing arrangements extended to channel partners and end-user customers. Payments under these financing guarantee arrangements were not material for the periods presented.
Channel Partner Financing Guarantees The Company facilitates arrangements for third-party financing extended to channel partners, consisting of revolving short-term financing, generally with payment terms ranging from 60 to 90 days. These financing arrangements facilitate the working capital requirements of the channel partners, and, in some cases, the Company guarantees a portion of these arrangements. The volume of channel partner financing was $5.8 billion for each of the three months ended April 26, 2014 and April 27, 2013, respectively. The volume of channel partner financing was $17.9 billion and $17.2 billion for the nine months ended April 26, 2014 and April 27, 2013, respectively. The balance of the channel partner financing subject to guarantees was $1.1 billion and $1.4 billion as of April 26, 2014 and July 27, 2013, respectively.
End-User Financing Guarantees The Company also provides financing guarantees for third-party financing arrangements extended to end-user customers related to leases and loans, which typically have terms of up to three years. The volume of financing provided by third parties for leases and loans as to which the Company had provided guarantees was $44 million and $38 million for the three months ended April 26, 2014 and April 27, 2013, respectively, and was $89 million and $137 million for the nine months ended April 26, 2014 and April 27, 2013, respectively.
Financing Guarantee Summary  The aggregate amounts of financing guarantees outstanding at April 26, 2014 and July 27, 2013, representing the total maximum potential future payments under financing arrangements with third parties along with the related deferred revenue, are summarized in the following table (in millions):
	April 26,			July 27,
	2014			2013
Maximum potential future payments relating to financing guarantees:
Channel partner	$	247		$	438
End user	229			237
Total	$	476		$	675
Deferred revenue associated with financing guarantees:
Channel partner	$	(132	)	$	(225	)
End user	(198		)	(191		)
Total	$	(330	)	$	(416	)
Maximum potential future payments relating to financing guarantees, net of associated deferred revenue	$	146		$	259

Investments

Investments	9 Months Ended
	Apr. 26, 2014
Investments [Abstract]	'
Investments	'
	8	Investments
	(a)	Summary of Available-for-Sale Investments
	The following tables summarize the Company’s available-for-sale investments (in millions):
	April 26, 2014	Amortized Cost			Gross Unrealized Gains			Gross Unrealized Losses			Fair Value
	Fixed income securities:
	U.S. government securities	$	31,675		$	34		$	(6	)	$	31,703
	U.S. government agency securities	1,060			2			(1		)	1,061
	Non-U.S. government and agency securities	819			2			(1		)	820
	Corporate debt securities	8,050			75			(10		)	8,115
	U.S. agency mortgage-backed securities	567			3			—			570
	Total fixed income securities	42,171			116			(18		)	42,269
	Publicly traded equity securities	1,314			652			(7		)	1,959
	Total	$	43,485		$	768		$	(25	)	$	44,228
	July 27, 2013	Amortized Cost			Gross Unrealized Gains			Gross Unrealized Losses			Fair Value
	Fixed income securities:
	U.S. government securities	$	27,814		$	22		$	(13	)	$	27,823
	U.S. government agency securities	3,083			7			(1		)	3,089
	Non-U.S. government and agency securities	1,094			3			(2		)	1,095
	Corporate debt securities	7,876			55			(50		)	7,881
	Total fixed income securities	39,867			87			(66		)	39,888
	Publicly traded equity securities	2,063			738			(4		)	2,797
	Total	$	41,930		$	825		$	(70	)	$	42,685
	Non-U.S. government and agency securities include agency and corporate debt securities that are guaranteed by non-U.S. governments.
	(b)	Gains and Losses on Available-for-Sale Investments
	The following table presents the gross realized gains and gross realized losses related to the Company’s available-for-sale investments (in millions):
		Three Months Ended						Nine Months Ended
		April 26,			April 27,			April 26,			April 27,
		2014			2013			2014			2013
	Gross realized gains	$	75		$	55		$	267		$	175
	Gross realized losses	(6		)	(49		)	(33		)	(129		)
	Total	$	69		$	6		$	234		$	46
	The following table presents the realized net gains related to the Company’s available-for-sale investments by security type (in millions):
		Three Months Ended						Nine Months Ended
		April 26,			April 27,			April 26,			April 27,
		2014			2013			2014			2013
	Net gains (losses) on investments in publicly traded equity securities	$	55		$	(2	)	$	199		$	12
	Net gains on investments in fixed income securities	14			8			35			34
	Total	$	69		$	6		$	234		$	46
	There were no impairment charges for the three months ended April 26, 2014. For the nine months ended April 26, 2014, the realized net gains related to the Company's available-for-sale investments included impairment charges of $11 million. These impairment charges related to publicly traded equity securities and were due to a decline in the fair value of those securities below their cost basis that were determined to be other than temporary. There were no impairment charges on available-for-sale investments for the corresponding periods in fiscal 2013.
	The following tables present the breakdown of the available-for-sale investments with gross unrealized losses and the duration that those losses had been unrealized at April 26, 2014 and July 27, 2013 (in millions):
		UNREALIZED LOSSES LESS THAN 12 MONTHS						UNREALIZED LOSSES 12 MONTHS OR GREATER						TOTAL
	April 26, 2014	Fair Value			Gross Unrealized Losses			Fair Value			Gross Unrealized Losses			Fair Value		Gross Unrealized Losses
	Fixed income securities:
	U.S. government securities	$	5,111		$	(6	)	$	8		$	—		$	5,119	$	(6	)
	U.S. government agency securities	396			(1		)	3			—			399		(1		)
	Non-U.S. government and agency securities	378			(1		)	—			—			378		(1		)
	Corporate debt securities	1,654			(10		)	52			—			1,706		(10		)
	U.S. agency mortgage-backed securities	158			—			—			—			158		—
	Total fixed income securities	7,697			(18		)	63			—			7,760		(18		)
	Publicly traded equity securities	117			(7		)	—			—			117		(7		)
	Total	$	7,814		$	(25	)	$	63		$	—		$	7,877	$	(25	)
		UNREALIZED LOSSES LESS THAN 12 MONTHS						UNREALIZED LOSSES 12 MONTHS OR GREATER						TOTAL
	July 27, 2013	Fair Value			Gross Unrealized Losses			Fair Value			Gross Unrealized Losses			Fair Value		Gross Unrealized Losses
	Fixed income securities:
	U.S. government securities	$	7,865		$	(13	)	$	—		$	—		$	7,865	$	(13	)
	U.S. government agency securities	294			(1		)	—			—			294		(1		)
	Non-U.S. government and agency securities	432			(2		)	—			—			432		(2		)
	Corporate debt securities	3,704			(50		)	4			—			3,708		(50		)
	Total fixed income securities	12,295			(66		)	4			—			12,299		(66		)
	Publicly traded equity securities	278			(4		)	—			—			278		(4		)
	Total	$	12,573		$	(70	)	$	4		$	—		$	12,577	$	(70	)
	As of April 26, 2014, for fixed income securities that were in unrealized loss positions, the Company has determined that (i) it does not have the intent to sell any of these investments, and (ii) it is not more likely than not that it will be required to sell any of these investments before recovery of the entire amortized cost basis. In addition, as of April 26, 2014, the Company anticipates that it will recover the entire amortized cost basis of such fixed income securities and has determined that no other-than-temporary impairments associated with credit losses were required to be recognized during the nine months ended April 26, 2014.
	The Company has evaluated its publicly traded equity securities as of April 26, 2014 and has determined that there was no indication of other-than-temporary impairments in the respective categories of unrealized losses. This determination was based on several factors, which include the length of time and extent to which fair value has been less than the cost basis, the financial condition and near-term prospects of the issuer, and the Company’s intent and ability to hold the publicly traded equity securities for a period of time sufficient to allow for any anticipated recovery in market value.
(c)	Maturities of Fixed Income Securities
The following table summarizes the maturities of the Company’s fixed income securities at April 26, 2014 (in millions):
	Amortized Cost			Fair Value
Less than 1 year	$	15,022		$	15,038
Due in 1 to 2 years	13,061			13,101
Due in 2 to 5 years	13,380			13,415
Due after 5 years	708			715
Total	$	42,171		$	42,269
Actual maturities may differ from the contractual maturities because borrowers may have the right to call or prepay certain obligations.
(d)	Securities Lending
The Company periodically engages in securities lending activities with certain of its available-for-sale investments. These transactions are accounted for as a secured lending of the securities, and the securities are typically loaned only on an overnight basis. The average daily balance of securities lending for the nine months ended April 26, 2014 and April 27, 2013 was $1.4 billion and $0.7 billion, respectively. The Company requires collateral equal to at least 102% of the fair market value of the loaned security and that the collateral be in the form of cash or liquid, high-quality assets. The Company engages in these secured lending transactions only with highly creditworthy counterparties, and the associated portfolio custodian has agreed to indemnify the Company against collateral losses. The Company did not experience any losses in connection with the secured lending of securities during the periods presented. As of April 26, 2014 and July 27, 2013, the Company had no outstanding securities lending transactions.

Fair_Value

Fair Value	9 Months Ended
	Apr. 26, 2014
Fair Value Disclosures [Abstract]	'
Fair Value	'
	9	Fair Value
	Fair value is defined as the price that would be received from selling an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. When determining the fair value measurements for assets and liabilities required or permitted to be either recorded or disclosed at fair value, the Company considers the principal or most advantageous market in which it would transact, and it also considers assumptions that market participants would use when pricing the asset or liability.
	(a)	Fair Value Hierarchy
	The accounting guidance for fair value measurement requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. The standard establishes a fair value hierarchy based on the level of independent, objective evidence surrounding the inputs used to measure fair value. A financial instrument’s categorization within the fair value hierarchy is based upon the lowest level of input that is significant to the fair value measurement. The fair value hierarchy is as follows:
	Level 1 applies to assets or liabilities for which there are quoted prices in active markets for identical assets or liabilities.
	Level 2 applies to assets or liabilities for which there are inputs other than quoted prices, that are observable for the asset or liability, such as quoted prices for similar assets or liabilities in active markets; quoted prices for identical assets or liabilities in markets with insufficient volume or infrequent transactions (less active markets); or model-derived valuations in which significant inputs are observable or can be derived principally from, or corroborated by, observable market data.
	Level 3 applies to assets or liabilities for which there are unobservable inputs to the valuation methodology that are significant to the measurement of the fair value of the assets or liabilities.
	(b)	Assets and Liabilities Measured at Fair Value on a Recurring Basis
	Assets and liabilities measured at fair value on a recurring basis as of April 26, 2014 and July 27, 2013 were as follows (in millions):
		26-Apr-14											27-Jul-13
		FAIR VALUE MEASUREMENTS											FAIR VALUE MEASUREMENTS
		Level 1			Level 2				Total Balance				Level 1		Level 2		Total Balance
	Assets
	Cash equivalents:
	Money market funds	$	4,475		$	—			$	4,475			$	6,045	$	—	$	6,045
	Available-for-sale investments:
	U.S. government securities	—			31,703				31,703				—		27,823		27,823
	U.S. government agency securities	—			1,061				1,061				—		3,089		3,089
	Non-U.S. government and agency securities	—			820				820				—		1,095		1,095
	Corporate debt securities	—			8,115				8,115				—		7,881		7,881
	U.S. agency mortgage-backed securities	—			570				570				—		—		—
	Publicly traded equity securities	1,959			—				1,959				2,797		—		2,797
	Derivative assets	—			148				148				—		182		182
	Total	$	6,434		$	42,417			$	48,851			$	8,842	$	40,070	$	48,912
	Liabilities:
	Derivative liabilities	$	—		$	54			$	54			$	—	$	171	$	171
	Total	$	—		$	54			$	54			$	—	$	171	$	171
	Level 1 publicly traded equity securities are determined by using quoted prices in active markets for identical assets. Level 2 fixed income securities are priced using quoted market prices for similar instruments or nonbinding market prices that are corroborated by observable market data. The Company uses inputs such as actual trade data, benchmark yields, broker/dealer quotes, and other similar data, which are obtained from quoted market prices, independent pricing vendors, or other sources, to determine the ultimate fair value of these assets and liabilities. The Company uses such pricing data as the primary input to make its assessments and determinations as to the ultimate valuation of its investment portfolio and has not made, during the periods presented, any material adjustments to such inputs. The Company is ultimately responsible for the financial statements and underlying estimates. The Company’s derivative instruments are primarily classified as Level 2, as they are not actively traded and are valued using pricing models that use observable market inputs. The Company did not have any transfers between Level 1 and Level 2 fair value measurements during the periods presented.
	(c)	Assets Measured at Fair Value on a Nonrecurring Basis
	For the nine months ended April 26, 2014, the Company recognized $10 million of losses related to the impairment of privately held investments.
	For the three and nine months ended April 27, 2013, the Company’s financial instruments and nonfinancial assets that were measured at fair value on a nonrecurring basis are summarized as follows (in millions):
			27-Apr-13
			Net Carrying Value as of End of Period			Total Gains (Losses) for the Three Months Ended				Total Gains (Losses) for the Nine Months Ended
	Assets held for sale		$	72		$	44			$	44
	Investments in privately held companies (impaired)		$	66		(5		)		(23		)
	Gains on assets no longer held at period end					34				34
	Net losses for nonrecurring measurement					$	73			$	55
	The assets in the preceding table were measured at fair value due to events or circumstances the Company identified as having significant impact on their fair value during the respective periods. To arrive at the valuation of these assets, the Company considers any significant changes in the financial metrics and economic variables, and also uses third-party valuation reports to assist in the valuation as necessary.
	The fair value measurement of the impaired investments was classified as Level 3 because significant unobservable inputs were used in the valuation due to the absence of quoted market prices and inherent lack of liquidity. Significant unobservable inputs, which included financial metrics of comparable private and public companies, financial condition and near-term prospects of the investees, recent financing activities of the investees, and the investees’ capital structure as well as other economic variables, reflected the assumptions market participants would use in pricing these assets. The impairment charges, representing the difference between the net book value and the fair value as a result of the evaluation, were recorded to other income (loss), net.
	The assets held for sale represent primarily land and buildings, as well as other items which met the criteria to be classified as held for sale. The fair value of assets held for sale was measured with the assistance of third-party valuation models which used discounted cash flow techniques as part of their analysis. The fair value measurement was categorized as Level 3 as significant unobservable inputs were used in the valuation report. The impairment charges as a result of the valuations, which represented the difference between the fair value less cost to sell and the carrying amount of the assets held for sale, were included in G&A expenses. Substantially all of the assets held for sale as of April 27, 2013 were sold by the end of fiscal 2013.
	(d)	Other Fair Value Disclosures
	The carrying value of the Company’s investments in privately held companies that were accounted for under the cost method was $273 million and $242 million as of April 26, 2014 and July 27, 2013, respectively. It was not practicable to estimate the fair value of this portfolio.
	The fair value of the Company’s short-term loan receivables and financed service contracts approximates their carrying value due to their short duration. The aggregate carrying value of the Company’s long-term loan receivables and financed service contracts and other as of April 26, 2014 and July 27, 2013 was $1.7 billion and $2.1 billion, respectively. The estimated fair value of the Company’s long-term loan receivables and financed service contracts and other approximates their carrying value. The Company uses significant unobservable inputs in determining discounted cash flows to estimate the fair value of its loan receivables and financed service contracts, and therefore they are categorized as Level 3.
	As of April 26, 2014, the fair value of the Company’s senior notes and other long-term debt was $22.4 billion with a carrying amount of $20.9 billion. This compares to a fair value of $17.6 billion and a carrying amount of $16.2 billion as of July 27, 2013. The fair value of the senior notes and other long-term debt was determined based on observable market prices in a less active market and was categorized as Level 2 in the fair value hierarchy.

Borrowings

Borrowings	9 Months Ended
	Apr. 26, 2014
Debt Disclosure [Abstract]	'
Borrowings	'
	10	Borrowings
	(a)	Short-Term Debt
	The following table summarizes the Company’s short-term debt (in millions, except percentages):
		April 26, 2014							July 27, 2013
		Amount				Effective Rate			Amount				Effective Rate
	Current portion of long-term debt	$	500			3.11	%		$	3,273			0.63	%
	Other notes and borrowings	8				2.6	%		10				2.52	%
	Total short-term debt	$	508						$	3,283
	In fiscal 2011, the Company established a short-term debt financing program of up to $3.0 billion through the issuance of commercial paper notes. The Company uses the proceeds from the issuance of commercial paper notes for general corporate purposes. In the third quarter of fiscal 2014, the Company repaid $1.0 billion of indebtedness under commercial paper and had no commercial paper outstanding as of each of April 26, 2014 and July 27, 2013.
	The effective interest rate on the current portion of long-term debt includes the impact of interest rate swaps, as discussed further in "(b) Long-Term Debt." The Company repaid senior floating-rate and fixed-rate notes upon their maturity in the third quarter of fiscal 2014 for an aggregate principal amount of $3.3 billion. Other notes and borrowings consist of the short-term portion of secured borrowings associated with customer financing arrangements. These notes and credit facilities were subject to various terms and foreign currency market interest rates pursuant to individual financial arrangements between the financing institution and the applicable foreign subsidiary.
	As of April 26, 2014, the estimated fair value of the short-term debt approximates its carrying value due to the short maturities.
	(b)	Long-Term Debt
	The following table summarizes the Company’s long-term debt (in millions, except percentages):
				April 26, 2014						July 27, 2013
		Maturity Date		Amount				Effective Rate		Amount				Effective Rate
	Senior notes:
	Floating-rate notes:
	Three-month LIBOR plus 0.25%	March 14, 2014		$	—			—		$	1,250			0.62%
	Three-month LIBOR plus 0.05%	September 3, 2015	-1	850				0.38%		—				—
	Three-month LIBOR plus 0.28%	March 3, 2017	-1	1,000				0.58%		—				—
	Three-month LIBOR plus 0.50%	March 1, 2019	-1	500				0.79%		—				—
	Fixed-rate notes:
	1.63%	March 14, 2014		—				—		2,000				0.64%
	2.90%	November 17, 2014		500				3.11%		500				3.11%
	5.50%	February 22, 2016		3,000				3.05%		3,000				3.07%
	1.10%	March 3, 2017	-1	2,400				0.56%		—				—
	3.15%	March 14, 2017		750				0.80%		750				0.84%
	4.95%	February 15, 2019		2,000				4.69%		2,000				4.70%
	2.13%	March 1, 2019	-1	1,750				0.77%		—				—
	4.45%	January 15, 2020		2,500				2.98%		2,500				4.15%
	2.90%	March 4, 2021	-1	500				0.93%		—				—
	3.62%	March 3, 2024	-1	1,000				1.05%		—				—
	5.90%	February 15, 2039		2,000				6.11%		2,000				6.11%
	5.50%	January 15, 2040		2,000				5.67%		2,000				5.67%
	Other long-term debt			6				2.52%		21				1.46%
	Total			20,756						16,021
	Unaccreted discount			(65		)				(65		)
	Hedge accounting fair value adjustments			193						245
	Total			$	20,884					$	16,201
	Reported as:
	Current portion of long-term debt			$	500					$	3,273
	Long-term debt			20,384						12,928
	Total			$	20,884					$	16,201
	(1) In March 2014, the Company issued senior notes for an aggregate principal amount of $8.0 billion.
	To achieve its interest rate risk management objectives, the Company entered into interest rate swaps with an aggregate notional amount of $10.4 billion designated as fair value hedges of certain of its fixed-rate senior notes. In effect, these swaps convert the fixed interest rates of the fixed-rate notes to floating interest rates based on the London InterBank Offered Rate (LIBOR). The gains and losses related to changes in the fair value of the interest rate swaps substantially offset changes in the fair value of the hedged portion of the underlying debt that are attributable to the changes in market interest rates. For additional information, see Note 11.
	The effective rates for the fixed-rate debt include the interest on the notes, the accretion of the discount and, if applicable, adjustments related to hedging. Interest is payable semiannually on each class of the senior fixed-rate notes and payable quarterly on the floating-rate notes. Each of the senior fixed-rate notes is redeemable by the Company at any time, subject to a make-whole premium.
	The senior notes rank at par with the commercial paper notes that may be issued in the future pursuant to the Company’s short-term debt financing program, as discussed above under “(a) Short-Term Debt.” As of April 26, 2014, the Company was in compliance with all debt covenants.
	As of April 26, 2014, future principal payments for long-term debt, including the current portion, are summarized as follows (in millions):
	Fiscal Year	Amount
	2014 (remaining three months)	$	—
	2015	502
	2016	3,853
	2017	4,151
	2018	—
	Thereafter	12,250
	Total	$	20,756
	(c)	Credit Facility
	On February 17, 2012, the Company entered into a credit agreement with certain institutional lenders that provides for a $3.0 billion unsecured revolving credit facility that is scheduled to expire on February 17, 2017. Any advances under the credit agreement will accrue interest at rates that are equal to, based on certain conditions, either (i) the higher of the Federal Funds rate plus 0.50%, Bank of America’s “prime rate” as announced from time to time, or one-month LIBOR plus 1.00% or (ii) LIBOR plus a margin that is based on the Company’s senior debt credit ratings as published by Standard & Poor’s Financial Services, LLC and Moody’s Investors Service, Inc. The credit agreement requires the Company to comply with certain covenants, including that it maintain an interest coverage ratio as defined in the agreement. As of April 26, 2014, the Company was in compliance with the required interest coverage ratio and the other covenants, and the Company had not borrowed any funds under the credit facility.
	The Company may also, upon the agreement of either the existing lenders or additional lenders not currently parties to the agreement, increase the commitments under the credit facility by up to an additional $2.0 billion and/or extend the expiration date of the credit facility by up to two additional years, or up to February 17, 2019.

Derivative_Instruments

Derivative Instruments	9 Months Ended
	Apr. 26, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Derivative Instruments	'
	11	Derivative Instruments
	(a)	Summary of Derivative Instruments
	The Company uses derivative instruments primarily to manage exposures to foreign currency exchange rate, interest rate, and equity price risks. The Company’s primary objective in holding derivatives is to reduce the volatility of earnings and cash flows associated with changes in foreign currency exchange rates, interest rates, and equity prices. The Company’s derivatives expose it to credit risk to the extent that the counterparties may be unable to meet the terms of the agreement. The Company does, however, seek to mitigate such risks by limiting its counterparties to major financial institutions. In addition, the potential risk of loss with any one counterparty resulting from this type of credit risk is monitored. Management does not expect material losses as a result of defaults by counterparties.
	The fair values of the Company’s derivative instruments and the line items on the Consolidated Balance Sheets to which they were recorded are summarized as follows (in millions):
		DERIVATIVE ASSETS										DERIVATIVE LIABILITIES
		Balance Sheet Line Item		April 26,				July 27,				Balance Sheet Line Item		April 26,				July 27,
				2014				2013						2014				2013
	Derivatives designated as hedging instruments:
	Foreign currency derivatives	Other current assets		$	17			$	33			Other current liabilities		$	3			$	7
	Interest rate derivatives	Other assets		126				147				Other long-term liabilities		8				2
	Equity derivatives	Other current assets		—				—				Other current liabilities		39				155
	Total			143				180						50				164
	Derivatives not designated as hedging instruments:
	Foreign currency derivatives	Other current assets		5				2				Other current liabilities		4				7
	Equity derivatives	Other assets		—				—				Other long-term liabilities		—				—
	Total			5				2						4				7
	Total			$	148			$	182					$	54			$	171
	The effects of the Company’s cash flow and net investment hedging instruments on other comprehensive income (OCI) and the Consolidated Statements of Operations are summarized as follows (in millions):
	GAINS (LOSSES) RECOGNIZED										GAINS (LOSSES) RECLASSIFIED FROM
	IN OCI ON DERIVATIVES FOR THE										AOCI INTO INCOME FOR THE
	THREE MONTHS ENDED (EFFECTIVE PORTION)										THREE MONTHS ENDED (EFFECTIVE PORTION)
	Derivatives designated as cash flow hedging instruments:		April 26,				April 27,				Line Item in Statements of Operations		April 26,				April 27,
			2014				2013						2014				2013
	Foreign currency derivatives		$	13			$	(11	)		Operating expenses		$	13			$	3
											Cost of sales—service		3				1
	Total		$	13			$	(11	)				$	16			$	4
	Derivatives designated as net investment hedging instruments:
	Foreign currency derivatives		$	(10	)		$	20			Other income (loss), net		$	—			$	—
	GAINS (LOSSES) RECOGNIZED										GAINS (LOSSES) RECLASSIFIED FROM
	IN OCI ON DERIVATIVES FOR THE										AOCI INTO INCOME FOR THE
	NINE MONTHS ENDED (EFFECTIVE PORTION)										NINE MONTHS ENDED (EFFECTIVE PORTION)
	Derivatives designated as cash flow hedging instruments:		April 26,				April 27,				Line Item in Statements of Operations		April 26,				April 27,
			2014				2013						2014				2013
	Foreign currency derivatives		$	47			$	58			Operating expenses		$	36			$	5
											Cost of sales—service		8				2
	Total		$	47			$	58					$	44			$	7
	Derivatives designated as net investment hedging instruments:
	Foreign currency derivatives		$	(13	)		$	(4	)		Other income (loss), net		$	—			$	—
	As of April 26, 2014, the Company estimates that approximately $22 million of net derivative gains related to its cash flow hedges included in accumulated other comprehensive income (AOCI) will be reclassified into earnings within the next 12 months.
	The effect on the Consolidated Statements of Operations of derivative instruments designated as fair value hedges and the underlying hedged items is summarized as follows (in millions):
					GAINS (LOSSES) ON DERIVATIVE								GAINS (LOSSES) RELATED TO HEDGED
					INSTRUMENTS FOR THE THREE MONTHS ENDED								ITEMS FOR THE THREE MONTHS ENDED
	Derivatives Designated as Fair Value Hedging Instruments		Line Item in Statements of Operations		April 26,				April 27,				April 26,				April 27,
					2014				2013				2014				2013
	Equity derivatives		Other income (loss), net		$	(8	)		$	(45	)		$	8			$	45
	Interest rate derivatives		Interest expense		8				(11		)		(8		)		11
	Total				$	—			$	(56	)		$	—			$	56
					GAINS (LOSSES) ON DERIVATIVE								GAINS (LOSSES) RELATED TO HEDGED
					INSTRUMENTS FOR THE NINE MONTHS ENDED								ITEMS FOR THE NINE MONTHS ENDED
	Derivatives Designated as Fair Value Hedging Instruments		Line Item in Statements of Operations		April 26,				April 27,				April 26,				April 27,
					2014				2013				2014				2013
	Equity derivatives		Other income (loss), net		$	(55	)		$	(87	)		$	55			$	87
	Interest rate derivatives		Interest expense		(27		)		(40		)		26				40
	Total				$	(82	)		$	(127	)		$	81			$	127
	The effect on the Consolidated Statements of Operations of derivative instruments not designated as hedges is summarized as follows (in millions):
					GAINS (LOSSES) FOR THE THREE MONTHS ENDED								GAINS (LOSSES) FOR THE NINE MONTHS ENDED
	Derivatives Not Designated as Hedging Instruments		Line Item in Statements of Operations		April 26,				April 27,				April 26,				April 27,
					2014				2013				2014				2013
	Foreign currency derivatives		Other income (loss), net		$	36			$	(90	)		$	16			$	(78	)
	Total return swaps—deferred compensation		Operating expenses		4				12				33				45
	Equity derivatives		Other income (loss), net		9				(6		)		33				6
	Total				$	49			$	(84	)		$	82			$	(27	)
	The notional amounts of the Company’s outstanding derivatives are summarized as follows (in millions):
	April 26,				July 27,
	2014				2013
Derivatives designated as hedging instruments:
Foreign currency derivatives—cash flow hedges	$	432			$	1,885
Interest rate derivatives	10,400				5,250
Net investment hedging instruments	328				662
Equity derivatives	238				1,098
Derivatives not designated as hedging instruments:
Foreign currency derivatives	2,864				3,739
Total return swaps—deferred compensation	411				358
Total	$	14,673			$	12,992
(b)	Offsetting of Derivative Instruments
The Company presents its derivative instruments at gross fair values in the Consolidated Balance Sheets. However, the Company’s master netting and other similar arrangements with the respective counterparties allow for net settlement under certain conditions, which are designed to reduce credit risk by permitting net settlement with the same counterparty. To further limit credit risk, the Company also enters into collateral security arrangements related to certain derivative instruments whereby cash is posted as collateral between the counterparties based on the fair market value of the derivative instrument. Information related to these offsetting arrangements is summarized as follows (in millions):
	OFFSETTING OF DERIVATIVE ASSETS
	Gross Amounts Offset in Consolidated Balance Sheets												Gross Amounts Not Offset in the Consolidated Balance Sheets, but with Legal Rights to Offset
26-Apr-14	Gross Amount of Recognized Assets				Gross Amounts Offset in Consolidated Balance Sheets				Net Amount Presented on Consolidated Balance Sheets				Gross Derivative Amounts with Legal Rights to Offset				Cash Collateral Received			Net Amount
Derivatives	$	148			$	—			$	148			$	(36	)		$	(5	)	$	107
	OFFSETTING OF DERIVATIVE LIABILITIES
	Gross Amounts Offset in Consolidated Balance Sheets												Gross Amounts Not Offset in the Consolidated Balance Sheets, but with Legal Rights to Offset
26-Apr-14	Gross Amount of Recognized Liabilities				Gross Amounts Offset in Consolidated Balance Sheets				Net Amount Presented on Consolidated Balance Sheets				Gross Derivative Amounts with Legal Rights to Offset				Cash Collateral Pledged			Net Amount
Derivatives	$	54			$	—			$	54			$	(36	)		$	(16	)	$	2
	OFFSETTING OF DERIVATIVE ASSETS
	Gross Amounts Offset in Consolidated Balance Sheets												Gross Amounts Not Offset in the Consolidated Balance Sheets, but with Legal Rights to Offset
27-Jul-13	Gross Amount of Recognized Assets				Gross Amounts Offset in Consolidated Balance Sheets				Net Amount Presented on Consolidated Balance Sheets				Gross Derivative Amounts with Legal Rights to Offset				Cash Collateral Received			Net Amount
Derivatives	$	182			$	—			$	182			$	(120	)		$	—		$	62
	OFFSETTING OF DERIVATIVE LIABILITIES
	Gross Amounts Offset in Consolidated Balance Sheets												Gross Amounts Not Offset in the Consolidated Balance Sheets, but with Legal Rights to Offset
27-Jul-13	Gross Amount of Recognized Liabilities				Gross Amounts Offset in Consolidated Balance Sheets				Net Amount Presented on Consolidated Balance Sheets				Gross Derivative Amounts with Legal Rights to Offset				Cash Collateral Pledged			Net Amount
Derivatives	$	171			$	—			$	171			$	(120	)		$	—		$	51
(c)	Foreign Currency Exchange Risk
The Company conducts business globally in numerous currencies. Therefore, it is exposed to adverse movements in foreign currency exchange rates. To limit the exposure related to foreign currency changes, the Company enters into foreign currency contracts. The Company does not enter into such contracts for trading purposes.
The Company hedges forecasted foreign currency transactions related to certain operating expenses and service cost of sales with currency options and forward contracts. These currency option and forward contracts, designated as cash flow hedges, generally have maturities of less than 18 months. The Company assesses effectiveness based on changes in total fair value of the derivatives. The effective portion of the derivative instrument’s gain or loss is initially reported as a component of AOCI and subsequently reclassified into earnings when the hedged exposure affects earnings. The ineffective portion, if any, of the gain or loss is reported in earnings immediately. During the periods presented, the Company did not discontinue any cash flow hedges for which it was probable that a forecasted transaction would not occur.
The Company enters into foreign exchange forward and option contracts to reduce the short-term effects of foreign currency fluctuations on assets and liabilities such as foreign currency receivables, including long-term customer financings, investments, and payables. These derivatives are not designated as hedging instruments. Gains and losses on the contracts are included in other income (loss), net, and substantially offset foreign exchange gains and losses from the remeasurement of intercompany balances or other current assets, investments, or liabilities denominated in currencies other than the functional currency of the reporting entity.
The Company hedges certain net investments in its foreign operations with forward contracts to reduce the effects of foreign currency fluctuations on the Company’s net investment in those foreign subsidiaries. These derivative instruments generally have maturities of up to six months.
(d)	Interest Rate Risk
Interest Rate Derivatives, Investments   The Company’s primary objective for holding fixed income securities is to achieve an appropriate investment return consistent with preserving principal and managing risk. To realize these objectives, the Company may utilize interest rate swaps or other derivatives designated as fair value or cash flow hedges. As of April 26, 2014 and July 27, 2013, the Company did not have any outstanding interest rate derivatives related to its fixed income securities.
Interest Rate Derivatives Designated as Fair Value Hedge, Long-Term Debt   In fiscal 2014 and 2013, the Company entered into interest rate swaps designated as fair value hedges related to fixed-rate senior notes that are due on various dates from 2017 through 2024. In the previous periods, the Company entered into interest rate swaps designated as fair value hedges related to fixed-rate senior notes that are due in 2016 and 2017. Under these interest rate swaps, the Company receives fixed-rate interest payments and makes interest payments based on LIBOR plus a fixed number of basis points. The effect of such swaps is to convert the fixed interest rates of the senior fixed-rate notes to floating interest rates based on LIBOR. The gains and losses related to changes in the fair value of the interest rate swaps are included in interest expense and substantially offset changes in the fair value of the hedged portion of the underlying debt that are attributable to the changes in market interest rates. The fair value of the interest rate swaps was reflected in other assets and other long-term liabilities.
(e)	Equity Price Risk
The Company may hold equity securities for strategic purposes or to diversify its overall investment portfolio. The publicly traded equity securities in the Company’s portfolio are subject to price risk. To manage its exposure to changes in the fair value of certain equity securities, the Company has entered into equity derivatives that are designated as fair value hedges. The changes in the value of the hedging instruments are included in other income (loss), net, and offset the change in the fair value of the underlying hedged investment. In addition, the Company periodically manages the risk of its investment portfolio by entering into equity derivatives that are not designated as accounting hedges. The changes in the fair value of these derivatives are also included in other income (loss), net.
The Company is also exposed to variability in compensation charges related to certain deferred compensation obligations to employees. Although not designated as accounting hedges, the Company utilizes derivatives such as total return swaps to economically hedge this exposure.
(f)	Hedge Effectiveness
For the fiscal periods presented, amounts excluded from the assessment of hedge effectiveness were not material for fair value, cash flow, and net investment hedges. In addition, hedge ineffectiveness for fair value, cash flow, and net investment hedges was not material for any of the fiscal periods presented.
(g)	Collateral and Credit-Risk-Related Contingent Features
For certain derivative instruments, the Company and its counterparties have entered into arrangements requiring the party that is in a liability position from a mark-to-market standpoint to post cash collateral to the other party. See further discussion under "(b) Offsetting of Derivative Instruments" above.
In addition, certain derivative instruments are executed under agreements that have provisions requiring the Company and the counterparty to maintain a specified credit rating from certain credit-rating agencies. Under such agreements, if the Company’s or the counterparty’s credit rating falls below a specified credit rating, either party has the right to request collateral on the derivatives’ net liability position. The fair market value of these derivatives as of April 26, 2014 and July 27, 2013 was $67 million and $88 million, respectively.

Commitments_And_Contingencies

Commitments And Contingencies	9 Months Ended
	Apr. 26, 2014
Commitments and Contingencies Disclosure [Abstract]	'
Commitments and Contingencies	'
	12	Commitments and Contingencies
	(a)	Operating Leases
	The Company leases office space in many U.S. locations. Outside the United States, larger leased sites include sites in Belgium, China, France, Germany, India, Israel, Italy, Japan, Norway, and the United Kingdom. The Company also leases equipment and vehicles. Future minimum lease payments under all noncancelable operating leases with an initial term in excess of one year as of April 26, 2014 are as follows (in millions):
	Fiscal Year	Amount
	2014 (remaining three months)	$	103
	2015	332
	2016	227
	2017	157
	2018	121
	Thereafter	243
	Total	$	1,183
	(b)	Purchase Commitments with Contract Manufacturers and Suppliers
	The Company purchases components from a variety of suppliers and uses several contract manufacturers to provide manufacturing services for its products. During the normal course of business, in order to manage manufacturing lead times and help ensure adequate component supply, the Company enters into agreements with contract manufacturers and suppliers that either allow them to procure inventory based upon criteria as defined by the Company or establish the parameters defining the Company’s requirements. A significant portion of the Company’s reported purchase commitments arising from these agreements consists of firm, noncancelable, and unconditional commitments. In certain instances, these agreements allow the Company the option to cancel, reschedule, and adjust the Company’s requirements based on its business needs prior to firm orders being placed. As of April 26, 2014 and July 27, 2013, the Company had total purchase commitments for inventory of $4,038 million and $4,033 million, respectively.
	The Company records a liability for firm, noncancelable, and unconditional purchase commitments for quantities in excess of its future demand forecasts consistent with the valuation of the Company’s excess and obsolete inventory. As of April 26, 2014 and July 27, 2013, the liability for these purchase commitments was $156 million and $172 million, respectively, and was included in other current liabilities.
	(c)	Other Commitments
	In connection with the Company’s business combinations, the Company has agreed to pay certain additional amounts contingent upon the achievement of certain agreed-upon technology, development, product, or other milestones, or upon the continued employment with the Company of certain employees of the acquired entities.
	The following table summarizes the compensation expense related to acquisitions (in millions):
		Three Months Ended						Nine Months Ended
		April 26,			April 27,			April 26,		April 27,
		2014			2013			2014		2013
	Compensation expense related to acquisitions	$	95		$	44		$	505	$	79
	As of April 26, 2014, the Company estimated that future cash compensation expense of up to $645 million may be required to be recognized pursuant to the applicable business combination agreements, which included the remaining potential compensation expense related to Insieme Networks, Inc. as more fully discussed immediately below.
	Insieme Networks, Inc. In the third quarter of fiscal 2012, the Company made an investment in Insieme Networks, Inc. ("Insieme"), an early-stage company focused on research and development in the data center market. As set forth in the agreement between the Company and Insieme, this investment included $100 million of funding and a license to certain of the Company’s technology. Immediately prior to the call option exercise and acquisition described below, the Company owned approximately 83% of Insieme as a result of these investments and consolidated the results of Insieme in its Consolidated Financial Statements. In connection with this investment, the Company and Insieme entered into a put/call option agreement that provided the Company with the right to purchase the remaining interests in Insieme. In addition, the noncontrolling interest holders could require the Company to purchase their shares upon the occurrence of certain events.
	During the first quarter of fiscal 2014, the Company exercised its call option and entered into an agreement to purchase the remaining interests in Insieme. The acquisition closed in the second quarter of fiscal 2014, at which time the former noncontrolling interest holders became eligible to receive up to two milestone payments, which will be determined using agreed-upon formulas based primarily on revenue for certain of Insieme’s products. During the three and nine months ended April 26, 2014, the Company recorded compensation expense of $52 million and $363 million related to the fair value of the vested portion of amounts that are expected to be earned by the former noncontrolling interest holders. Continued vesting and changes to the fair value of the amounts probable of being earned will result in adjustments to the recorded compensation expense in future periods. Based on the terms of the agreement, the Company has determined that the maximum amount that could be recorded as compensation expense by the Company is approximately $856 million, net of forfeitures and including the $363 million that has been expensed through April 26, 2014. The milestone payments, if earned, are expected to be paid primarily during fiscal 2016 and fiscal 2017.
	The Company also has certain funding commitments, primarily related to its investments in privately held companies and venture funds, some of which are based on the achievement of certain agreed-upon milestones, and some of which are required to be funded on demand. The funding commitments were $276 million and $263 million as of April 26, 2014 and July 27, 2013, respectively.
	(d)	Variable Interest Entities
	VCE Joint Venture VCE is a joint venture that the Company formed in fiscal 2010 with EMC Corporation (“EMC”), with investments from VMware, Inc. (“VMware”) and Intel Corporation. VCE helps organizations leverage best-in-class technologies and disciplines from Cisco, EMC, and VMware to enable the transformation to cloud computing.
	As of April 26, 2014, the Company’s cumulative gross investment in VCE was approximately $679 million, inclusive of accrued interest, and its ownership percentage was approximately 35%.  The Company invested $147 million during the nine months ended April 26, 2014.
	The Company accounts for its investment in VCE under the equity method, and its portion of VCE’s net loss is recognized in other income (loss), net. The Company’s share of VCE’s losses, based upon its portion of the overall funding, was approximately 36.8% for each of the three and nine months ended April 26, 2014 and April 27, 2013. As of April 26, 2014, the Company had recorded cumulative losses from VCE of $584 million since inception, of which losses of $52 million and $49 million were recorded for the three months ended April 26, 2014 and April 27, 2013, respectively, and losses of $163 million and $135 million were recorded for the nine months ended April 26, 2014 and April 27, 2013, respectively. The Company’s carrying value in VCE as of April 26, 2014 of $95 million was recorded in other assets.
	Over the next 12 months, as VCE scales its operations, the Company expects that it will make additional investments in VCE and may incur additional losses proportionate with the Company’s share ownership.
	From time to time, EMC and Cisco may enter into guarantee agreements on behalf of VCE to indemnify third parties, such as customers, for monetary damages. Such guarantees were not material as of April 26, 2014.
	Other Variable Interest Entities In the ordinary course of business, the Company has investments in other privately held companies and provides financing to certain customers. These other privately held companies and customers may be considered to be variable interest entities. The Company evaluates on an ongoing basis its investments in these other privately held companies and its customer financings, and has determined that as of April 26, 2014 there were no other variable interest entities required to be consolidated in the Company’s Consolidated Financial Statements.
	(e)	Product Warranties and Guarantees
	The following table summarizes the activity related to product warranty liability during the nine months ended April 26, 2014 and April 27, 2013 (in millions):
		Nine Months Ended
		April 26,			April 27,
		2014			2013
	Balance at beginning of period	$	402		$	373
	Provision for warranties issued	532			480
	Payments	(504		)	(462		)
	Balance at end of period	$	430		$	391
	The Company accrues for warranty costs as part of its cost of sales based on associated material product costs, labor costs for technical support staff, and associated overhead. The Company’s products are generally covered by a warranty for periods ranging from 90 days to five years, and for some products the Company provides a limited lifetime warranty.
	The Company also provides financing guarantees, which are generally for various third-party financing arrangements to channel partners and other end-user customers. For additional information, see Note 7. The Company’s other guarantee arrangements as of April 26, 2014 and July 27, 2013 that were subject to recognition and disclosure requirements were not material.
	(f) Supplier Component Remediation Liability
	The Company has recorded in other current liabilities a liability for the expected remediation cost for certain products sold in prior fiscal years containing memory components manufactured by a single supplier between 2005 and 2010. These components are widely used across the industry and are included in a number of the Company's products. Defects in some of these components have caused products to fail after a power cycle event.  Defect rates due to this issue have been and are expected to be low. However, recently the Company has seen a small number of its customers experience a growing number of failures in their networks as a result of this component problem. Although the majority of these products are beyond the Company's warranty terms, the Company is proactively working with customers on mitigation. Prior to the second quarter of fiscal 2014, the Company had a liability of $63 million related to this issue for expected remediation costs based on the intended approach at that time. In February 2014, on the basis of the growing number of failures described above, the Company decided to expand its approach which resulted in an additional charge to product cost of sales of $655 million being recorded for the second quarter of fiscal 2014. As of April 26, 2014, the remaining supplier component remediation liability was $702 million.
	(g) Indemnifications
	In the normal course of business, the Company indemnifies other parties, including customers, lessors, and parties to other transactions with the Company, with respect to certain matters. The Company has agreed to hold such parties harmless against losses arising from a breach of representations or covenants or out of intellectual property infringement or other claims made against certain parties. These agreements may limit the time within which an indemnification claim can be made and the amount of the claim.
	The Company has an obligation to indemnify certain expenses pursuant to such agreements in a case involving certain of the Company’s service provider customers that are subject to patent infringement claims asserted by Sprint Communications Company, L.P. (“Sprint”) in the United States District Court for the District of Kansas filed on December 19, 2011 (including one case that was later transferred to the District of Delaware). Sprint alleges that the service providers infringe Sprint’s patents by offering Voice over Internet Protocol-based telephone services utilizing products provided by the Company and other manufacturers. Sprint is seeking monetary damages. Trial dates have been set for the first half of calendar year 2015. The parties intend to conduct a mediation later this calendar year and the Company may be asked to participate. The mediation could result in a resolution of the case for some or all of the Company's service provider customers. The Company believes that the service providers have strong defenses and that its products do not infringe the patents subject to the claims. Due to the uncertainty surrounding the litigation process, which involves numerous defendants, the Company is unable to reasonably estimate the ultimate outcome of this litigation at this time. Should the plaintiff prevail in litigation, mediation, or settlement, the Company may have an obligation to indemnify its service provider customers for damages, mediation awards, or settlement amounts arising from their use of Cisco products.
	In addition, the Company has entered into indemnification agreements with its officers and directors, and the Company’s Amended and Restated Bylaws contain similar indemnification obligations to the Company’s agents.
	It is not possible to determine the maximum potential amount under these indemnification agreements due to the Company’s limited history with prior indemnification claims and the unique facts and circumstances involved in each particular agreement. Historically, payments made by the Company under these agreements have not had a material effect on the Company’s operating results, financial position, or cash flows.
	(h) Legal Proceedings
	Brazil Brazilian authorities have investigated the Company’s Brazilian subsidiary and certain of its current and former employees, as well as a Brazilian importer of the Company’s products, and its affiliates and employees, relating to alleged evasion of import taxes and alleged improper transactions involving the subsidiary and the importer. Brazilian tax authorities have assessed claims against the Company’s Brazilian subsidiary based on a theory of joint liability with the Brazilian importer for import taxes, interest, and penalties. In addition to claims asserted by the Brazilian federal tax authorities in prior fiscal years, tax authorities from the Brazilian state of Sao Paulo have asserted similar claims on the same legal basis in prior fiscal years. In the first quarter of fiscal 2013, the Brazilian federal tax authorities asserted an additional claim against the Company’s Brazilian subsidiary based on a theory of joint liability with respect to an alleged underpayment of income taxes, social taxes, interest, and penalties by a Brazilian distributor.
	The asserted claims by Brazilian federal tax authorities are for calendar years 2003 through 2008, and the asserted claims by the tax authorities from the state of Sao Paulo are for calendar years 2005 through 2007. The total asserted claims by Brazilian state and federal tax authorities aggregate to approximately $389 million for the alleged evasion of import and other taxes, approximately $1.3 billion for interest, and approximately $1.7 billion for various penalties, all determined using an exchange rate as of April 26, 2014. The Company has completed a thorough review of the matters and believes the asserted claims against the Company’s Brazilian subsidiary are without merit, and the Company is defending the claims vigorously. While the Company believes there is no legal basis for the alleged liability, due to the complexities and uncertainty surrounding the judicial process in Brazil and the nature of the claims asserting joint liability with the importer, the Company is unable to determine the likelihood of an unfavorable outcome against its Brazilian subsidiary and is unable to reasonably estimate a range of loss, if any. The Company does not expect a final judicial determination for several years.
	Russia and the Commonwealth of Independent States At the request of the U.S. Securities and Exchange Commission and the U.S. Department of Justice, the Company is conducting an investigation into allegations which the Company and those agencies received regarding possible violations of the U.S. Foreign Corrupt Practices Act involving business activities of the Company's operations in Russia and certain of the Commonwealth of Independent States, and by certain resellers of the Company’s products in those countries.  The Company takes any such allegations very seriously and is fully cooperating with and sharing the results of its investigation with the Commission and the Department.  While the outcome of the Company's investigation is currently not determinable, the Company does not expect that it will have a material adverse effect on its consolidated financial position, results of operations, or cash flows. The countries that are the subject of the investigation collectively comprise less than two percent of the Company’s revenues.
	VirnetX The Company was subject to patent claims asserted by VirnetX, Inc. on August 11, 2010 in the United States District Court for the Eastern District of Texas.  VirnetX alleged that some Cisco products that implement a method for secure communication using virtual private networks infringe certain patents.  VirnetX sought monetary damages.  The trial on these claims began on March 4, 2013. On March 14, 2013, the jury entered a verdict finding that the Company’s accused products do not infringe any of VirnetX’s patents asserted in the lawsuit. On April 3, 2013, VirnetX filed a motion seeking a new trial on the issue of infringement, which the Company opposed. The Court held a hearing on VirnetX’s motion for a new trial in June 2013. On March 31, 2014 the court denied VirnetX's new trial motion. VirnetX has not appealed that decision, which is therefore final.
	XpertUniverse The Company was subject to numerous patent, tort, and contract claims asserted by XpertUniverse on March 10, 2009 in the United States District Court for the District of Delaware. Shortly before trial, the Court dismissed on summary judgment all claims initially asserted by XpertUniverse except a claim for infringement of two XpertUniverse patents and a claim for fraud by concealment. XpertUniverse’s remaining patent claims alleged that three Cisco products in the field of expertise location software infringed two XpertUniverse patents. XpertUniverse’s fraud by concealment claim alleged that the Company did not disclose its decision not to admit XpertUniverse into a partner program. The trial on these remaining claims began on March 11, 2013. On March 22, 2013, the jury entered a verdict finding that two of the Company’s products infringed two of XpertUniverse’s patents and awarded XpertUniverse damages of less than $35 thousand. The jury also found for XpertUniverse on its fraud by concealment claim and awarded damages of $70 million. In May and June 2013, the Company filed post-trial motions. On November 20, 2013 the trial court granted the Company's motion for judgment as a matter of law, overturned the jury’s finding on the fraud by concealment claim, and vacated the $70 million verdict. Separately, the trial court agreed with the jury that the Company infringed XpertUniverse’s patents, and affirmed the verdict awarding XpertUniverse approximately $35 thousand in damages plus accrued interest. On February 4, 2014, XpertUniverse filed a notice of appeal from the trial court’s decision.
	Rockstar The Company and some of its service provider customers are subject to patent claims asserted in December 2013 in the Eastern District of Texas and the District of Delaware by subsidiaries of the Rockstar Consortium ("Rockstar"). Rockstar, whose members include Apple, Microsoft, LM Ericsson, Sony, and Blackberry, purchased a portfolio of patents out of the Nortel Networks’ bankruptcy proceedings (the “Nortel Portfolio”). Rockstar’s subsidiaries allege that some of the Company’s NGN Routing, Switching and Collaboration products, as well as video solutions deployed by its service provider customers, infringe some of the patents in the Nortel Portfolio. Rockstar seeks monetary damages. A trial date for one service provider customer has been set for October 2015; no other trial dates have been set. The Company has various defenses to the patent infringement allegations, and has various offensive claims against Rockstar and some of its consortium members available to it as well, and the Company will also explore alternative means of resolution. Due to the uncertainty surrounding the litigation process, which involves numerous lawsuits and parties, the Company is unable to reasonably estimate the ultimate outcome and a range of loss, if any, of these litigations at this time.
	In addition, the Company is subject to legal proceedings, claims, and litigation arising in the ordinary course of business, including intellectual property litigation. While the outcome of these matters is currently not determinable, the Company does not expect that the ultimate costs to resolve these matters will have a material adverse effect on its consolidated financial position, results of operations, or cash flows.

Shareholders_Equity

Shareholders' Equity	9 Months Ended
	Apr. 26, 2014
Stockholders' Equity Note [Abstract]	'
Shareholders' Equity	'
	13	Shareholders’ Equity
	(a)	Cash Dividends on Shares of Common Stock
	During the nine months ended April 26, 2014, the Company declared and paid cash dividends of $0.53 per common share, or $2.8 billion, on the Company’s outstanding common stock. During the nine months ended April 27, 2013, the Company declared and paid cash dividends of $0.45 per common share, or $2.4 billion, on the Company’s outstanding common stock.
	Any future dividends will be subject to the approval of the Company’s Board of Directors.
	(b)	Stock Repurchase Program
	In September 2001, the Company’s Board of Directors authorized a stock repurchase program. As of April 26, 2014, the Company’s Board of Directors had authorized an aggregate repurchase of up to $97 billion of common stock under this program, and the remaining authorized repurchase amount was $10.1 billion, with no termination date. A summary of the stock repurchase activity under the stock repurchase program, reported based on the trade date, is summarized as follows (in millions, except per-share amounts):
		Shares Repurchased	Weighted- Average Price per Share		Amount Repurchased
	Cumulative balance at July 27, 2013	3,868	$	20.4	$	78,906
	Repurchase of common stock under the stock repurchase program (1)	359	22.31		8,025
	Cumulative balance at April 26, 2014	4,227	$	20.56	$	86,931
	(1) Includes stock repurchases of $60 million, which were pending settlement as of April 26, 2014. There were no stock repurchases pending settlement as of July 27, 2013.
	The purchase price for the shares of the Company’s stock repurchased is reflected as a reduction to shareholders’ equity. The Company is required to allocate the purchase price of the repurchased shares as (i) a reduction to retained earnings and (ii) a reduction of common stock and additional paid-in capital. Issuance of common stock and the tax benefit related to employee stock incentive plans are recorded as an increase to common stock and additional paid-in capital.
	(c)	Restricted Stock Unit Withholdings
	For the nine months ended April 26, 2014 and April 27, 2013, the Company repurchased approximately 14 million and 13 million shares, or $345 million and $249 million, of common stock, respectively, in settlement of employee tax withholding obligations due upon the vesting of restricted stock or stock units.

Employee_Benefit_Plans

Employee Benefit Plans	9 Months Ended
	Apr. 26, 2014
Employee Service Share-based Compensation, Aggregate Disclosures [Abstract]	'
Employee Benefit Plans	'
	14	Employee Benefit Plans
	(a)	Employee Stock Incentive Plans
	Stock Incentive Plan Program Description   As of April 26, 2014, the Company had four stock incentive plans: the 2005 Stock Incentive Plan (the “2005 Plan”); the 1996 Stock Incentive Plan (the “1996 Plan”); the Cisco Systems, Inc. SA Acquisition Long-Term Incentive Plan (the “SA Acquisition Plan”); and the Cisco Systems, Inc. WebEx Acquisition Long-Term Incentive Plan (the “WebEx Acquisition Plan”). In addition, the Company has, in connection with the acquisitions of various companies, assumed the share-based awards granted under stock incentive plans of the acquired companies or issued share-based awards in replacement thereof. Share-based awards are designed to reward employees for their long-term contributions to the Company and provide incentives for them to remain with the Company. The number and frequency of share-based awards are based on competitive practices, operating results of the Company, government regulations, and other factors. Since the inception of the stock incentive plans, the Company has granted share-based awards to a significant percentage of its employees, and the majority has been granted to employees below the vice president level. The Company’s primary stock incentive plans are summarized as follows:
	2005 Plan As of April 26, 2014, the maximum number of shares issuable under the 2005 Plan over its term was 694 million shares plus the number of any shares underlying awards outstanding on November 15, 2007 under the 1996 Plan, the SA Acquisition Plan, and the WebEx Acquisition Plan that are forfeited or are terminated for any other reason before being exercised or settled. If any awards granted under the 2005 Plan are forfeited or are terminated for any other reason before being exercised or settled, the unexercised or unsettled shares underlying the awards will again be available under the 2005 Plan. Starting November 19, 2013, shares withheld by the Company from an award other than a stock option or stock appreciation right to satisfy withholding tax liabilities resulting from such award will again be available for issuance, based on the fungible share ratio in effect on the date of grant.
	Pursuant to an amendment approved by the Company’s shareholders on November 12, 2009, the number of shares available for issuance under the 2005 Plan is reduced by 1.5 shares for each share awarded as a stock grant or a stock unit, and any shares underlying awards outstanding under the 1996 Plan, the SA Acquisition Plan, and the WebEx Acquisition Plan that expire unexercised at the end of their maximum terms become available for reissuance under the 2005 Plan. The 2005 Plan permits the granting of stock options, restricted stock, and restricted stock units (RSUs), the vesting of which may be performance-based or market-based along with the requisite service requirement, and stock appreciation rights to employees (including employee directors and officers), consultants of the Company and its subsidiaries and affiliates, and non-employee directors of the Company. Stock options and stock appreciation rights granted under the 2005 Plan have an exercise price of at least 100% of the fair market value of the underlying stock on the grant date and prior to November 12, 2009 have an expiration date no later than nine years from the grant date. The expiration date for stock options and stock appreciation rights granted subsequent to the amendment approved on November 12, 2009 shall be no later than 10 years from the grant date.
	The stock options will generally become exercisable for 20% or 25% of the option shares one year from the date of grant and then ratably over the following 48 months or 36 months, respectively. Time-based stock grants and time-based RSUs will generally vest with respect to 20% or 25% of the shares or share units covered by the grant on each of the first through fifth or fourth anniversaries of the date of the grant, respectively. Performance-based and market-based RSUs typically vest at the end of the three-year requisite service period or earlier if the award recipient meets certain retirement eligibility conditions. The Compensation and Management Development Committee of the Board of Directors has the discretion to use different vesting schedules. Stock appreciation rights may be awarded in combination with stock options or stock grants, and such awards shall provide that the stock appreciation rights will not be exercisable unless the related stock options or stock grants are forfeited. Stock grants may be awarded in combination with non-statutory stock options, and such awards may provide that the stock grants will be forfeited in the event that the related non-statutory stock options are exercised.
	1996 Plan The 1996 Plan expired on December 31, 2006, and the Company can no longer make equity awards under the 1996 Plan. The maximum number of shares issuable over the term of the 1996 Plan was 2.5 billion shares. Stock options granted under the 1996 Plan have an exercise price of at least 100% of the fair market value of the underlying stock on the grant date and expire no later than nine years from the grant date. The stock options generally became exercisable for 20% or 25% of the option shares one year from the date of grant and then ratably over the following 48 months or 36 months, respectively. Certain other grants utilized a 60-month ratable vesting schedule. In addition, the Board of Directors, or other committees administering the 1996 Plan, had the discretion to use a different vesting schedule and did so from time to time.
	Acquisition Plans In connection with the Company’s acquisitions of Scientific-Atlanta, Inc. (“Scientific-Atlanta”) and WebEx Communications, Inc. (“WebEx”), the Company adopted the SA Acquisition Plan and the WebEx Acquisition Plan, respectively, each effective upon completion of the applicable acquisition. These plans constitute assumptions, amendments, restatements, and renamings of the 2003 Long-Term Incentive Plan of Scientific-Atlanta and the WebEx Communications, Inc. Amended and Restated 2000 Stock Incentive Plan, respectively. The plans permit the grant of stock options, stock, stock units, and stock appreciation rights to certain employees of the Company and its subsidiaries and affiliates who had been employed by Scientific-Atlanta or its subsidiaries or WebEx or its subsidiaries, as applicable. As a result of the shareholder approval of the amendment and extension of the 2005 Plan, as of November 15, 2007, the Company will no longer make stock option grants or direct share issuances under either the SA Acquisition Plan or the WebEx Acquisition Plan.
	(b)	Employee Stock Purchase Plan
	The Company has an Employee Stock Purchase Plan, which includes its subplan named the International Employee Stock Purchase Plan (together, the “Purchase Plan”), under which 471.4 million shares of the Company’s common stock have been reserved for issuance as of April 26, 2014. Eligible employees are offered shares through a 24-month offering period, which consists of four consecutive 6-month purchase periods. Employees may purchase a limited number of shares of the Company’s stock at a discount of up to 15% of the lesser of the market value at the beginning of the offering period or the end of each 6-month purchase period. The Purchase Plan is scheduled to terminate on January 3, 2020. The Company issued 14 million and 18 million shares under the Purchase Plan during the nine months ended April 26, 2014 and April 27, 2013, respectively. As of April 26, 2014, 38 million shares were available for issuance under the Purchase Plan.
	(c)	Summary of Share-Based Compensation Expense
	Share-based compensation expense consists primarily of expenses for stock options, stock purchase rights, restricted stock, and restricted stock units granted to employees. The following table summarizes share-based compensation expense (in millions):
		Three Months Ended								Nine Months Ended
		April 26,				April 27,				April 26,				April 27,
		2014				2013				2014				2013
	Cost of sales—product	$	12			$	10			$	34			$	31
	Cost of sales—service	39				34				112				105
	Share-based compensation expense in cost of sales	51				44				146				136
	Research and development	106				72				306				228
	Sales and marketing	144				118				408				383
	General and administrative	52				38				153				136
	Restructuring and other charges	—				—				(4		)		(3		)
	Share-based compensation expense in operating expenses	302				228				863				744
	Total share-based compensation expense	$	353			$	272			$	1,009			$	880
	Income tax benefit for share-based compensation	$	86			$	73			$	246			$	232
	As of April 26, 2014, the total compensation cost related to unvested share-based awards not yet recognized was $2.7 billion, which is expected to be recognized over approximately 2.4 years on a weighted-average basis.
	(d)	Share-Based Awards Available for Grant
	A summary of share-based awards available for grant is as follows (in millions):
		Share-Based Awards Available for Grant
	BALANCE AT JULY 28, 2012	218
	Restricted stock, stock units, and other share-based awards granted	(102	)
	Share-based awards canceled/forfeited/expired	115
	Other	(3	)
	BALANCE AT JULY 27, 2013	228
	Restricted stock, stock units, and other share-based awards granted	(92	)
	Share-based awards canceled/forfeited/expired	29
	Additional shares reserved	135
	Shares withheld for taxes and not issued	2
	Other	1
	BALANCE AT APRIL 26, 2014	303
	As reflected in the preceding table, for each share awarded as restricted stock or subject to a restricted stock unit award under the 2005 Plan, an equivalent of 1.5 shares was deducted from the available share-based award balance. For restricted stock units that were awarded with vesting contingent upon the achievement of future financial performance or market-based metrics, the maximum awards that can be achieved upon full vesting of such awards were reflected in the preceding table.
	(e)	Restricted Stock and Stock Unit Awards
	A summary of the restricted stock and stock unit activity, which includes time-based and performance-based or market-based restricted stock units, is as follows (in millions, except per-share amounts):
		Restricted Stock/Stock Units			Weighted-Average Grant Date Fair Value per Share				Aggregated Fair Market Value
	UNVESTED BALANCE AT JULY 28, 2012	128			$	19.46
	Granted and assumed	72			18.52
	Vested	(46	)		20.17				$	932
	Canceled/forfeited	(11	)		18.91
	UNVESTED BALANCE AT JULY 27, 2013	143			18.8
	Granted and assumed	67			20.74
	Vested	(43	)		19.56				$	998
	Canceled/forfeited	(10	)		18.7
	UNVESTED BALANCE AT APRIL 26, 2014	157			$	19.43
	(f)	Stock Option Awards
	A summary of the stock option activity is as follows (in millions, except per-share amounts):
		STOCK OPTIONS OUTSTANDING
		Number Outstanding			Weighted-Average Exercise Price per Share
	BALANCE AT JULY 28, 2012	520			$	22.68
	Assumed from acquisitions	10			0.77
	Exercised	(154	)		18.51
	Canceled/forfeited/expired	(100	)		22.18
	BALANCE AT JULY 27, 2013	276			24.44
	Assumed from acquisitions	6			3.69
Exercised	(45	)		17.54
Canceled/forfeited/expired	(14	)		27.41
BALANCE AT APRIL 26, 2014	223			$	25.09
The following table summarizes significant ranges of outstanding and exercisable stock options as of April 26, 2014 (in millions, except years and share prices):
	STOCK OPTIONS OUTSTANDING													STOCK OPTIONS EXERCISABLE
Range of Exercise Prices	Number Outstanding			Weighted-Average Remaining Contractual Life		Weighted-Average Exercise Price per Share				Aggregate Intrinsic Value				Number Exercisable		Weighted-Average Exercise Price per Share		Aggregate Intrinsic Value
				(in Years)
$  0.01 – 15.00	9			5.2		$	4.29			$	180			4		$	6.11	$	85
15.01 – 18.00	25			0.5		17.81				128				25		17.81		128
18.01 – 20.00	7			0.6		19.22				25				7		19.22		25
20.01 – 25.00	76			1.4		22.85				15				76		22.85		15
25.01 – 30.00	28			2.1		26.59				—				28		26.59		—
30.01 – 35.00	78			2.2		32.16				—				78		32.16		—
Total	223			1.8		$	25.09			$	348			218		$	25.57	$	253
The aggregate intrinsic value in the preceding table represents the total pretax intrinsic value, based on the Company’s closing stock price of $23.00 as of April 25, 2014, that would have been received by the option holders had those option holders exercised their stock options as of that date. The total number of in-the-money stock options exercisable as of April 26, 2014 was 47 million. As of July 27, 2013, 271 million outstanding stock options were exercisable, and the weighted-average exercise price was $24.84.
(g)	Valuation of Employee Share-Based Awards
Time-based restricted stock units and performance-based restricted stock units (PRSUs) that are based on the Company’s financial performance metrics or non-financial operating goals are valued using the market value of the Company’s common stock on the date of grant, discounted for the present value of expected dividends. On the date of grant, the Company estimated the fair value of the total shareholder return (TSR) component of the PRSUs using a Monte Carlo simulation model. The valuation of time-based RSUs and PRSUs is summarized as follows:
	RESTRICTED STOCK UNITS								PERFORMANCE RESTRICTED STOCK UNITS
Three Months Ended	April 26, 2014				April 27, 2013				April 26, 2014			April 27, 2013
Number of shares granted (in millions)	6				4				2			—
Grant date fair value per share	$	19.95			$	19.59			19.85			N/A
Weighted-average assumptions/inputs:
Expected dividend yield	3.1		%		2.7		%		3.5	%		N/A
Range of risk-free interest rates	0.0% - 1.7%				0.1% - 0.9%				0.1% - 1.7%			N/A
Range of expected volatilities for index	N/A				N/A				N/A			N/A
	RESTRICTED STOCK UNITS								PERFORMANCE RESTRICTED STOCK UNITS
Nine Months Ended	April 26, 2014				April 27, 2013				April 26, 2014				April 27, 2013
Number of shares granted (in millions)	53				56				6				4
Grant date fair value per share	$	20.5			$	17.47			$	21.73			$	19.26
Weighted-average assumptions/inputs:
Expected dividend yield	3.1		%		3		%		2.7		%		2.9		%
Range of risk-free interest rates	0.0% - 1.7%				0.0% - 0.9%				0.0% - 1.7%				0.1% - 0.7%
Range of expected volatilities for index	N/A				N/A				17.4% - 70.5%				18.3% - 64.6%
The PRSUs granted during the first nine months of fiscal 2014 and fiscal 2013 are contingent on the achievement of the Company’s financial performance metrics, its comparative market-based returns, or the achievement of non-financial operating goals. For the awards based on financial performance metrics or its comparative market-based returns, generally 50% of the PRSUs are earned based on the average of annual operating cash flow and earnings per share goals established at the beginning of each fiscal year over a three-year performance period. Generally, the remaining 50% of the PRSUs are earned based on the Company’s TSR measured against the benchmark TSR of a peer group over the same period. Each PRSU recipient could vest in 0% to 150% of the target shares granted contingent on the achievement of the Company’s financial performance metrics or its comparative market-based returns, and 0% or 100% of the target shares granted contingent on the achievement of non-financial operating goals.

Comprehensive_Income

Comprehensive Income	9 Months Ended
	Apr. 26, 2014
AOCI components [Abstract]	'
Comprehensive Income (Loss) Note [Text Block]	'
	15	Comprehensive Income
	The components of AOCI, net of tax, and the other comprehensive income (loss), excluding noncontrolling interest, for the nine months ended April 26, 2014 and April 27, 2013 are summarized as follows (in millions):
		Net Unrealized Gains on Investments			Net Unrealized Gains (Losses) Cash Flow Hedging Instruments			Cumulative Translation Adjustment and Other			Accumulated Other Comprehensive Income
	BALANCE AT JULY 27, 2013	$	379		$	8		$	221		$	608
	Other comprehensive income before reclassifications attributable to Cisco Systems, Inc.	339			46			32			417
	(Gains) losses reclassified out of other comprehensive income	(234		)	(44		)	—			(278		)
	Tax benefit (expense)	(43		)	(2		)	(5		)	(50		)
	BALANCE AT APRIL 26, 2014	$	441		$	8		$	248		$	697
		Net Unrealized Gains on Investments			Net Unrealized Gains (Losses) Cash Flow Hedging Instruments			Cumulative Translation Adjustment and Other			Accumulated Other Comprehensive Income
	BALANCE AT JULY 28, 2012	$	409		$	(53	)	$	305		$	661
	Other comprehensive income before reclassifications attributable to Cisco Systems, Inc.	22			59			6			87
	(Gains) losses reclassified out of other comprehensive income	(46		)	(7		)	—			(53		)
	Tax benefit (expense)	9			(1		)	(14		)	(6		)
	BALANCE AT APRIL 27, 2013	$	394		$	(2	)	$	297		$	689
	The net gains (losses) reclassified out of other comprehensive income into the Consolidated Statements of Operations, with line item location, during each period were as follows (in millions):
			Three Months Ended						Nine Months Ended
			April 26,			April 27,			April 26,			April 27,
			2014			2013			2014			2013
	Comprehensive Income Components		Income Before Taxes						Income Before Taxes					Line Item in Statements of Operations
	Net unrealized gains on available-for-sale investments
			$	69		$	6		$	234		$	46	Other income (loss), net
	Net unrealized gains and losses on cash flow hedging instruments
	Foreign currency derivatives		13			3			36			5		Operating expenses
	Foreign currency derivatives		3			1			8			2		Cost of sales—service
			16			4			44			7
	Total amounts reclassified out of other comprehensive income		$	85		$	10		$	278		$	53

Income_Taxes

Income Taxes	9 Months Ended
	Apr. 26, 2014
Income Tax Disclosure [Abstract]	'
Income Taxes	'
	16	Income Taxes
	The following table provides details of income taxes (in millions, except percentages):
		Three Months Ended						Nine Months Ended
		April 26,			April 27,			April 26,			April 27,
		2014			2013			2014			2013
	Income before provision for income taxes	$	2,642		$	2,945		$	6,937		$	8,356
	Provision for income taxes	$	461		$	467		$	1,331		$	643
	Effective tax rate	17.4		%	15.9		%	19.2		%	7.7		%
	As of April 26, 2014, the Company had $1.9 billion of unrecognized tax benefits, of which $1.6 billion, if recognized, would favorably impact the effective tax rate. The Company regularly engages in discussions and negotiations with tax authorities regarding tax matters in various jurisdictions. The Company believes it is reasonably possible that certain federal, foreign, and state tax matters may be concluded in the next 12 months. Specific positions that may be resolved include issues involving transfer pricing and various other matters. The Company estimates that it is reasonably possible that the unrecognized tax benefits at April 26, 2014 could be reduced by $300 million in the next 12 months.

Segment_Information_And_Major_

Segment Information And Major Customers	9 Months Ended
	Apr. 26, 2014
Segment Reporting [Abstract]	'
Segment Information and Major Customers	'
	17	Segment Information and Major Customers
	(a)	Revenue and Gross Margin by Segment
	The Company conducts business globally and is primarily managed on a geographic basis consisting of three segments: the Americas, EMEA, and APJC. The Company’s management makes financial decisions and allocates resources based on the information it receives from its internal management system. Sales are attributed to a segment based on the ordering location of the customer. The Company does not allocate research and development, sales and marketing, or general and administrative expenses to its segments in this internal management system because management does not include the information in its measurement of the performance of the operating segments. In addition, the Company does not allocate amortization and impairment of acquisition-related intangible assets, share-based compensation expense, significant litigation and other contingencies, impacts to cost of sales from purchase accounting adjustments to inventory, charges related to asset impairments and restructurings, and certain other charges to the gross margin for each segment because management does not include this information in its measurement of the performance of the operating segments.
	Summarized financial information by segment for the three and nine months ended April 26, 2014 and April 27, 2013, based on the Company’s internal management system and as utilized by the Company’s Chief Operating Decision Maker (“CODM”), is as follows (in millions):
		Three Months Ended						Nine Months Ended
		April 26,			April 27,			April 26,			April 27,
		2014			2013			2014			2013
	Revenue:
	Americas	$	6,689		$	7,127		$	20,465		$	21,286
	EMEA	3,068			3,131			8,897			9,065
	APJC	1,788			1,958			5,423			5,839
	Total	$	11,545		$	12,216		$	34,785		$	36,190
	Gross margin:
	Americas	4,196			4,460			12,823			13,341
	EMEA	1,967			2,044			5,725			5,850
	APJC	1,076			1,197			3,148			3,494
	Segment total	7,239			7,701			21,696			22,685
	Unallocated corporate items	(233		)	(190		)	(1,332		)	(592		)
	Total	$	7,006		$	7,511		$	20,364		$	22,093
	Revenue in the United States, which is included in the Americas, was $5.9 billion and $6.1 billion for the three months ended April 26, 2014 and April 27, 2013, respectively, and was $17.9 billion and $18.3 billion for the nine months ended April 26, 2014 and April 27, 2013.
	(b)	Revenue for Groups of Similar Products and Services
	The Company designs, manufactures, and sells Internet Protocol (IP)-based networking and other products related to the communications and IT industry, and provides services associated with these products and their use. The Company groups its products and technologies into the following categories: Switching, NGN Routing, Service Provider Video, Collaboration, Wireless, Data Center, Security, and Other Products. These products, primarily integrated by Cisco IOS Software, link geographically dispersed local-area networks (LANs), metropolitan-area networks (MANs), and wide-area networks (WANs).
	The following table presents revenue for groups of similar products and services (in millions):
		Three Months Ended						Nine Months Ended
		April 26,			April 27,			April 26,			April 27,
		2014			2013			2014			2013
	Revenue:
	Switching	$	3,381		$	3,601		$	10,406		$	10,962
	NGN Routing	1,935			2,145			5,719			6,147
	Service Provider Video	961			1,299			2,905			3,670
	Collaboration	892			1,013			2,800			2,978
	Data Center	662			515			1,868			1,480
	Wireless	553			539			1,604			1,573
	Security	361			327			1,119			1,002
	Other	75			120			219			481
	Product	8,820			9,559			26,640			28,293
	Service	2,725			2,657			8,145			7,897
	Total	$	11,545		$	12,216		$	34,785		$	36,190
	The Company has made certain reclassifications to the prior period amounts to conform to the current period’s presentation.
	(c) Additional Segment Information
	The majority of the Company’s assets, excluding cash and cash equivalents and investments, as of April 26, 2014 and July 27, 2013 were attributable to its U.S. operations. The Company’s total cash and cash equivalents and investments held by various foreign subsidiaries were $45.9 billion and $40.4 billion as of April 26, 2014 and July 27, 2013, respectively, and the remaining $4.6 billion and $10.2 billion at the respective period ends was available in the United States.
	Property and equipment information is based on the physical location of the assets. The following table presents property and equipment information for geographic areas (in millions):
		April 26,			July 27,
		2014			2013
	Property and equipment, net:
	United States	$	2,718		$	2,780
	International	592			542
	Total	$	3,310		$	3,322

Net_Income_Per_Share

Net Income Per Share	9 Months Ended
	Apr. 26, 2014
Earnings Per Share [Abstract]	'
Net Income Per Share	'
	18	Net Income per Share
	The following table presents the calculation of basic and diluted net income per share (in millions, except per-share amounts):
		Three Months Ended				Nine Months Ended
		April 26,		April 27,		April 26,		April 27,
		2014		2013		2014		2013
	Net income	$	2,181	$	2,478	$	5,606	$	7,713
	Weighted-average shares—basic	5,143		5,329		5,271		5,316
	Effect of dilutive potential common shares	37		58		40		45
	Weighted-average shares—diluted	5,180		5,387		5,311		5,361
	Net income per share—basic	$	0.42	$	0.47	$	1.06	$	1.45
	Net income per share—diluted	$	0.42	$	0.46	$	1.06	$	1.44
	Antidilutive employee share-based awards, excluded	240		245		331		417
	Employee equity share options, unvested shares, and similar equity instruments granted by the Company are treated as potential common shares outstanding in computing diluted earnings per share. Diluted shares outstanding include the dilutive effect of in-the-money options, unvested restricted stock, and restricted stock units. The dilutive effect of such equity awards is calculated based on the average share price for each fiscal period using the treasury stock method. Under the treasury stock method, the amount the employee must pay for exercising stock options, the amount of compensation cost for future service that the Company has not yet recognized, and the amount of tax benefits that would be recorded in additional paid-in capital when the award becomes deductible are collectively assumed to be used to repurchase shares.

Recent_Accounting_Pronouncemen1

Recent Accounting Pronouncements (Policies)	9 Months Ended
	Apr. 26, 2014
Accounting Policies [Abstract]	'
New Accounting Updates Recently Adopted	'
	New Accounting Updates Recently Adopted
	In December 2011, the Financial Accounting Standards Board (FASB) issued an accounting standard update requiring enhanced disclosures about certain financial instruments and derivative instruments that are offset in the statement of financial position or that are subject to enforceable master netting arrangements or similar agreements. This accounting standard became effective for the Company in the first quarter of fiscal 2014. As a result of the application of this accounting standard update, the Company has provided additional disclosures in Note 11.
	In July 2012, the FASB issued an accounting standard update intended to simplify how an entity tests indefinite-lived intangible assets other than goodwill for impairment by providing entities with an option to perform a qualitative assessment to determine whether further impairment testing is necessary. This accounting standard update became effective for the Company beginning in the first quarter of fiscal 2014, and its adoption did not have any impact on the Company’s Consolidated Financial Statements.
	In February 2013, the FASB issued an accounting standard update to require reclassification adjustments from other comprehensive income to be presented either in the financial statements or in the notes to the financial statements. This accounting standard became effective for the Company in the first quarter of fiscal 2014. As a result of the application of this accounting standard update, the Company has provided additional disclosures in Note 15.
Description of New Accounting Pronouncements Not yet Adopted	'
	Recent Accounting Standards or Updates Not Yet Effective
	In March 2013, the FASB issued an accounting standard update requiring an entity to release into net income the entire amount of a cumulative translation adjustment related to its investment in a foreign entity when as a parent it either sells a part or all of its investment in the foreign entity or no longer holds a controlling financial interest in a subsidiary or group of assets within the foreign entity. This accounting standard update will be effective for the Company beginning in the first quarter of fiscal 2015. The Company is currently evaluating the impact of this accounting standard update on its Consolidated Financial Statements.
	In July 2013, the FASB issued an accounting standard update that provides explicit guidance on the financial statement presentation of an unrecognized tax benefit when a net operating loss carryforward or a tax credit carryforward exists. Under the new standard update, an unrecognized tax benefit, or a portion of an unrecognized tax benefit, is to be presented in the financial statements as a reduction to a deferred tax asset for a net operating loss carryforward or a tax credit carryforward. This accounting standard update will be effective for the Company beginning in the first quarter of fiscal 2015 and applied prospectively with early adoption permitted. The Company is currently evaluating the impact of this accounting standard update on its Consolidated Financial Statements.
	In April 2014, the FASB issued an accounting standard update that changes the criteria for reporting discontinued operations. Under the accounting standard update, a disposal of a component of an entity or a group of components of an entity is required to be reported in discontinued operations if the disposal represents a strategic shift that has, or will have, a major effect on an entity's operations and financial results when either it qualifies as held for sale, disposed of by sale, or disposed of other than by sale. This accounting standard update will be effective for the Company beginning in the first quarter of fiscal 2016. The Company is currently evaluating the impact of this accounting standard update on its Consolidated Financial Statements.
Fair Value Measurement, Policy	'
	Fair value is defined as the price that would be received from selling an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. When determining the fair value measurements for assets and liabilities required or permitted to be either recorded or disclosed at fair value, the Company considers the principal or most advantageous market in which it would transact, and it also considers assumptions that market participants would use when pricing the asset or liability.
	(a)	Fair Value Hierarchy
	The accounting guidance for fair value measurement requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. The standard establishes a fair value hierarchy based on the level of independent, objective evidence surrounding the inputs used to measure fair value. A financial instrument’s categorization within the fair value hierarchy is based upon the lowest level of input that is significant to the fair value measurement. The fair value hierarchy is as follows:
	Level 1 applies to assets or liabilities for which there are quoted prices in active markets for identical assets or liabilities.
	Level 2 applies to assets or liabilities for which there are inputs other than quoted prices, that are observable for the asset or liability, such as quoted prices for similar assets or liabilities in active markets; quoted prices for identical assets or liabilities in markets with insufficient volume or infrequent transactions (less active markets); or model-derived valuations in which significant inputs are observable or can be derived principally from, or corroborated by, observable market data.
	Level 3 applies to assets or liabilities for which there are unobservable inputs to the valuation methodology that are significant to the measurement of the fair value of the assets or liabilities.

Supplemental_Information_Table

Supplemental Information (Tables)	9 Months Ended
	Apr. 26, 2014
Stockholders' Equity Note [Abstract]	'
Stock Repurchases Since Inception Of Program [Table Text Block]	'
	The stock repurchases since the inception of this program and the related impacts on Cisco shareholders’ equity are summarized in the following table (in millions):
		Shares of Common Stock	Common Stock and Additional Paid-In Capital		Retained Earnings		Total Cisco Shareholders’ Equity
	Repurchases of common stock under the repurchase program	4,227	$	20,839	$	66,092	$	86,931

Business_Combinations_Tables

Business Combinations (Tables)	9 Months Ended
	Apr. 26, 2014
Business Combinations [Abstract]	'
Schedule of Business Acquisitions, by Acquisition	'
	A summary of the allocation of the total purchase consideration is presented as follows (in millions):
		Purchase Consideration		Net Tangible Assets Acquired (Liabilities Assumed)			Purchased Intangible Assets		Goodwill
	Composite Software, Inc.	$	160	$	(10	)	$	75	$	95
	Sourcefire, Inc.	2,449		81			577		1,791
	WhipTail Technologies, Inc.	351		(34		)	105		280
	All others (2 in total)	10		(2		)	6		6
	Total	$	2,970	$	35		$	763	$	2,172

Goodwill_And_Purchased_Intangi1

Goodwill And Purchased Intangible Assets (Tables)	9 Months Ended
	Apr. 26, 2014
Goodwill and Intangible Assets Disclosure [Abstract]	'
Goodwill By Reportable Segment	'
	The following table presents the goodwill allocated to the Company’s reportable segments as of and during the nine months ended April 26, 2014 (in millions):
			Balance at				Acquisitions				Other				Balance at April 26, 2014
			July 27, 2013
	Americas		$	13,800			$	1,198			$	(12	)		$	14,986
	EMEA		5,037				638				(3		)		5,672
	APJC		3,082				336				—				3,418
	Total		$	21,919			$	2,172			$	(15	)		$	24,076
Schedule Of Intangible Assets Acquired As Part Of Business Combination	'
	The following table presents details of the Company’s intangible assets acquired through business combinations completed during the nine months ended April 26, 2014 (in millions, except years):
		FINITE LIVES																INDEFINITE LIVES		TOTAL
		TECHNOLOGY						CUSTOMER RELATIONSHIPS						OTHER				IPR&D
		Weighted-Average Useful Life (in Years)		Amount				Weighted-Average Useful Life (in Years)		Amount				Weighted-Average Useful Life (in Years)		Amount		Amount		Amount
	Composite Software, Inc.	6		$	60			3.9		$	14			0		$	—	$	1	$	75
	Sourcefire, Inc.	7		400				5		129				3		26		22		577
	WhipTail Technologies, Inc.	5		63				5		1				2.7		3		38		105
	All other acquisitions	3		6				0		—				0		—		—		6
	Total			$	529					$	144					$	29	$	61	$	763
Schedule Of Purchased Intangible Assets	'
	The following tables present details of the Company’s purchased intangible assets (in millions):
	April 26, 2014		Gross				Accumulated Amortization				Net
	Purchased intangible assets with finite lives:
	Technology		$	4,117			$	(1,885	)		$	2,232
	Customer relationships		1,698				(653		)		1,045
	Other		56				(16		)		40
	Total purchased intangible assets with finite lives		5,871				(2,554		)		3,317
	In-process research and development, with indefinite lives		144				—				144
	Total		$	6,015			$	(2,554	)		$	3,461
	July 27, 2013		Gross				Accumulated Amortization				Net
	Purchased intangible assets with finite lives:
	Technology		$	3,563			$	(1,366	)		$	2,197
	Customer relationships		1,566				(466		)		1,100
	Other		30				(10		)		20
	Total purchased intangible assets with finite lives		5,159				(1,842		)		3,317
	In-process research and development, with indefinite lives		86				—				86
	Total		$	5,245			$	(1,842	)		$	3,403
Schedule Of Amortization Of Purchased Intangible Assets	'
	The following table presents the amortization of purchased intangible assets (in millions):
		Three Months Ended								Nine Months Ended
		April 26,				April 27,				April 26,				April 27,
		2014				2013				2014				2013
	Amortization of purchased intangible assets:
	Cost of sales	$	190			$	156			$	553			$	444
	Operating expenses	71				89				207				329
	Total	$	261			$	245			$	760			$	773
Schedule Of Estimated Future Amortization Expense Of Purchased Intangible Assets	'
	The estimated future amortization expense of purchased intangible assets with finite lives as of April 26, 2014 is as follows (in millions):
	Fiscal Year		Amount
	2014 (remaining three months)		$	259
	2015		959
	2016		726
	2017		550
	2018		398
	Thereafter		425
	Total		$	3,317

Restructuring_And_Other_Charge1

Restructuring And Other Charges (Tables)	9 Months Ended
	Apr. 26, 2014
Restructuring and Related Activities [Abstract]	'
Schedule of Restructuring and Related Costs	'
	The following table summarizes the activities related to the restructuring and other charges pursuant to the August Fiscal 2014 Plan (in millions):
	August Fiscal 2014 Plan	Employee			Other			Total
		Severance
	Gross charges in fiscal 2014	$	331		$	5		$	336
	Cash payments	(306		)	—			(306		)
	Non-cash items	—			(5		)	(5		)
	Liability as of April 26, 2014	$	25		$	—		$	25

Balance_Sheet_Details_Tables

Balance Sheet Details (Tables)	9 Months Ended
	Apr. 26, 2014
Disclosure Balance Sheet Details [Abstract]	'
Inventory Disclosure [Text Block]	'
	The following tables provide details of selected balance sheet items (in millions):
		April 26,			July 27,
		2014			2013
	Inventories:
	Raw materials	$	57		$	105
	Work in process	5			24
	Finished goods:
	Distributor inventory and deferred cost of sales	623			572
	Manufactured finished goods	550			480
	Total finished goods	1,173			1,052
	Service-related spares	255			256
	Demonstration systems	38			39
	Total	$	1,528		$	1,476
Property, Plant and Equipment Disclosure [Text Block]	'
	Property and equipment, net:
	Land, buildings, and building and leasehold improvements	$	4,496		$	4,426
	Computer equipment and related software	1,442			1,416
	Production, engineering, and other equipment	5,750			5,721
	Operating lease assets (1)	360			326
	Furniture and fixtures	508			497
		12,556			12,386
	Less accumulated depreciation and amortization (1)	(9,246		)	(9,064		)
	Total	$	3,310		$	3,322
Schedule of Other Assets, Noncurrent [Table Text Block]	'
	Other assets:
	Deferred tax assets	$	1,540		$	1,539
	Investments in privately held companies	923			833
	Other	721			743
	Total	$	3,184		$	3,115
Deferred Revenue, by Arrangement, Disclosure [Table Text Block]	'
	Deferred revenue:
	Service	$	8,746		$	9,403
	Product:
	Unrecognized revenue on product shipments and other deferred revenue	3,669			3,340
	Cash receipts related to unrecognized revenue from two-tier distributors	736			680
	Total product deferred revenue	4,405			4,020
	Total	$	13,151		$	13,423
	Reported as:
	Current	$	9,198		$	9,262
	Noncurrent	3,953			4,161
	Total	$	13,151		$	13,423

Financing_Receivables_And_Guar1

Financing Receivables And Guarantees (Tables)	9 Months Ended
	Apr. 26, 2014
Financing Receivables And Guarantees [Abstract]	'
Financing Receivables	'
	A summary of the Company’s financing receivables is presented as follows (in millions):
	April 26, 2014	Lease Receivables			Loan Receivables			Financed Service Contracts and Other			Total Financing Receivables
	Gross	$	3,783		$	1,621		$	2,810		$	8,214
	Unearned income	(246		)	—			—			(246		)
	Allowance for credit loss	(249		)	(92		)	(19		)	(360		)
	Total, net	$	3,288		$	1,529		$	2,791		$	7,608
	Reported as:
	Current	$	1,480		$	814		$	1,777		$	4,071
	Noncurrent	1,808			715			1,014			3,537
	Total, net	$	3,288		$	1,529		$	2,791		$	7,608
	July 27, 2013	Lease Receivables			Loan Receivables			Financed Service Contracts and Other			Total Financing Receivables
	Gross	$	3,780		$	1,649		$	3,136		$	8,565
	Unearned income	(273		)	—			—			(273		)
	Allowance for credit loss	(238		)	(86		)	(20		)	(344		)
	Total, net	$	3,269		$	1,563		$	3,116		$	7,948
	Reported as:
	Current	$	1,418		$	898		$	1,721		$	4,037
	Noncurrent	1,851			665			1,395			3,911
	Total, net	$	3,269		$	1,563		$	3,116		$	7,948
Contractual Maturities Of The Gross Lease Receivables	'
	Contractual maturities of the gross lease receivables at April 26, 2014 are summarized as follows (in millions):
	Fiscal Year		Amount
	2014 (remaining three months)		$	589
	2015		1,471
	2016		971
	2017		524
	2018		194
	Thereafter		34
	Total		$	3,783
Schedule Of Internal Credit Risk Rating For Each Portfolio Segment	'
	Financing receivables categorized by the Company’s internal credit risk rating as of April 26, 2014 and July 27, 2013 are summarized as follows (in millions):
		INTERNAL CREDIT RISK RATING
	April 26, 2014	1 to 4			5 to 6			7 and Higher			Total			Residual Value		Gross Receivables,
																Net of Unearned Income
	Lease receivables	$	1,604		$	1,557		$	133		$	3,294		$	243	$	3,537
	Loan receivables	894			595			132			1,621			—		1,621
	Financed service contracts and other	1,569			1,160			81			2,810			—		2,810
	Total	$	4,067		$	3,312		$	346		$	7,725		$	243	$	7,968
		INTERNAL CREDIT RISK RATING
	July 27, 2013	1 to 4			5 to 6			7 and Higher			Total			Residual Value		Gross Receivables,
																Net of Unearned Income
	Lease receivables	$	1,681		$	1,482		$	93		$	3,256		$	251	$	3,507
	Loan receivables	842			777			30			1,649			—		1,649
	Financed service contracts and other	1,876			1,141			119			3,136			—		3,136
	Total	$	4,399		$	3,400		$	242		$	8,041		$	251	$	8,292
Schedule Of Financing Receivables By Portfolio Segment And Class Aging Analysis	'
	The following tables present the aging analysis of financing receivables as of April 26, 2014 and July 27, 2013 (in millions):
		DAYS PAST DUE (INCLUDES BILLED AND UNBILLED)
	26-Apr-14	31-60			61-90			91+			Total Past Due			Current		Gross Receivables,		Nonaccrual Financing Receivables		Impaired Financing Receivables
																Net of Unearned Income
	Lease receivables	$	83		$	41		$	165		$	289		$	3,248	$	3,537	$	67	$	54
	Loan receivables	5			6			15			26			1,595		1,621		8		8
	Financed service contracts and other	228			96			239			563			2,247		2,810		11		8
	Total	$	316		$	143		$	419		$	878		$	7,090	$	7,968	$	86	$	70
		DAYS PAST DUE (INCLUDES BILLED AND UNBILLED)
	27-Jul-13	31-60			61-90			91+			Total Past Due			Current		Gross Receivables,		Nonaccrual Financing Receivables		Impaired Financing Receivables
																Net of Unearned Income
	Lease receivables	$	85		$	48		$	124		$	257		$	3,250	$	3,507	$	27	$	22
	Loan receivables	6			3			11			20			1,629		1,649		11		9
	Financed service contracts and other	75			48			392			515			2,621		3,136		18		11
	Total	$	166		$	99		$	527		$	792		$	7,500	$	8,292	$	56	$	42
Allowance For Credit Loss And Related Financing Receivables	'
	The allowances for credit loss and the related financing receivables are summarized as follows (in millions):
		CREDIT LOSS ALLOWANCES
	Three Months Ended April 26, 2014	Lease Receivables			Loan Receivables			Financed Service Contracts and Other			Total
	Allowance for credit loss as of January 25, 2014	$	254		$	98		$	22		$	374
	Provisions	(6		)	(10		)	(2		)	(18		)
	Recoveries (write-offs), net	(1		)	4			(1		)	2
	Foreign exchange and other	2			—			—			2
	Allowance for credit loss as of April 26, 2014	$	249		$	92		$	19		$	360
	Gross receivables as of April 26, 2014, net of unearned income	$	3,537		$	1,621		$	2,810		$	7,968
		CREDIT LOSS ALLOWANCES
	Nine Months Ended April 26, 2014	Lease Receivables			Loan Receivables			Financed Service Contracts and Other			Total
	Allowance for credit loss as of July 27, 2013	$	238		$	86		$	20		$	344
	Provisions	9			5			—			14
	Recoveries (write-offs), net	—			4			(1		)	3
	Foreign exchange and other	2			(3		)	—			(1		)
	Allowance for credit loss as of April 26, 2014	$	249		$	92		$	19		$	360
		CREDIT LOSS ALLOWANCES
	Three Months Ended April 27, 2013	Lease Receivables			Loan Receivables			Financed Service Contracts and Other			Total
	Allowance for credit loss as of January 26, 2013	$	247		$	101		$	13		$	361
	Provisions	30			8			6			44
	Recoveries (write-offs), net	(29		)	(15		)	—			(44		)
	Foreign exchange and other	(3		)	(1		)	—			(4		)
	Allowance for credit loss as of April 27, 2013	$	245		$	93		$	19		$	357
	Gross receivables as of April 27, 2013, net of unearned income	$	3,478		$	1,671		$	2,924		$	8,073
		CREDIT LOSS ALLOWANCES
	Nine Months Ended April 27, 2013	Lease Receivables			Loan Receivables			Financed Service Contracts and Other			Total
	Allowance for credit loss as of July 28, 2012	$	247		$	122		$	11		$	380
	Provisions	27			(15		)	8			20
	Recoveries (write-offs), net	(29		)	(15		)	—			(44		)
	Foreign exchange and other	—			1			—			1
	Allowance for credit loss as of April 27, 2013	$	245		$	93		$	19		$	357
Financing Guarantees	'
	The aggregate amounts of financing guarantees outstanding at April 26, 2014 and July 27, 2013, representing the total maximum potential future payments under financing arrangements with third parties along with the related deferred revenue, are summarized in the following table (in millions):
		April 26,			July 27,
		2014			2013
	Maximum potential future payments relating to financing guarantees:
	Channel partner	$	247		$	438
	End user	229			237
	Total	$	476		$	675
	Deferred revenue associated with financing guarantees:
	Channel partner	$	(132	)	$	(225	)
	End user	(198		)	(191		)
	Total	$	(330	)	$	(416	)
	Maximum potential future payments relating to financing guarantees, net of associated deferred revenue	$	146		$	259

Investments_Tables

Investments (Tables)	9 Months Ended
	Apr. 26, 2014
Investments [Abstract]	'
Schedule of Available-for-sale Securities Reconciliation	'
	The following tables summarize the Company’s available-for-sale investments (in millions):
	April 26, 2014	Amortized Cost			Gross Unrealized Gains			Gross Unrealized Losses			Fair Value
	Fixed income securities:
	U.S. government securities	$	31,675		$	34		$	(6	)	$	31,703
	U.S. government agency securities	1,060			2			(1		)	1,061
	Non-U.S. government and agency securities	819			2			(1		)	820
	Corporate debt securities	8,050			75			(10		)	8,115
	U.S. agency mortgage-backed securities	567			3			—			570
	Total fixed income securities	42,171			116			(18		)	42,269
	Publicly traded equity securities	1,314			652			(7		)	1,959
	Total	$	43,485		$	768		$	(25	)	$	44,228
	July 27, 2013	Amortized Cost			Gross Unrealized Gains			Gross Unrealized Losses			Fair Value
	Fixed income securities:
	U.S. government securities	$	27,814		$	22		$	(13	)	$	27,823
	U.S. government agency securities	3,083			7			(1		)	3,089
	Non-U.S. government and agency securities	1,094			3			(2		)	1,095
	Corporate debt securities	7,876			55			(50		)	7,881
	Total fixed income securities	39,867			87			(66		)	39,888
	Publicly traded equity securities	2,063			738			(4		)	2,797
	Total	$	41,930		$	825		$	(70	)	$	42,685
Schedule of Realized Gain (Loss)	'
	The following table presents the gross realized gains and gross realized losses related to the Company’s available-for-sale investments (in millions):
		Three Months Ended						Nine Months Ended
		April 26,			April 27,			April 26,			April 27,
		2014			2013			2014			2013
	Gross realized gains	$	75		$	55		$	267		$	175
	Gross realized losses	(6		)	(49		)	(33		)	(129		)
	Total	$	69		$	6		$	234		$	46
	The following table presents the realized net gains related to the Company’s available-for-sale investments by security type (in millions):
		Three Months Ended						Nine Months Ended
		April 26,			April 27,			April 26,			April 27,
		2014			2013			2014			2013
	Net gains (losses) on investments in publicly traded equity securities	$	55		$	(2	)	$	199		$	12
	Net gains on investments in fixed income securities	14			8			35			34
	Total	$	69		$	6		$	234		$	46
Schedule of Unrealized Loss on Investments	'
	The following tables present the breakdown of the available-for-sale investments with gross unrealized losses and the duration that those losses had been unrealized at April 26, 2014 and July 27, 2013 (in millions):
		UNREALIZED LOSSES LESS THAN 12 MONTHS						UNREALIZED LOSSES 12 MONTHS OR GREATER						TOTAL
	April 26, 2014	Fair Value			Gross Unrealized Losses			Fair Value			Gross Unrealized Losses			Fair Value		Gross Unrealized Losses
	Fixed income securities:
	U.S. government securities	$	5,111		$	(6	)	$	8		$	—		$	5,119	$	(6	)
	U.S. government agency securities	396			(1		)	3			—			399		(1		)
	Non-U.S. government and agency securities	378			(1		)	—			—			378		(1		)
	Corporate debt securities	1,654			(10		)	52			—			1,706		(10		)
	U.S. agency mortgage-backed securities	158			—			—			—			158		—
	Total fixed income securities	7,697			(18		)	63			—			7,760		(18		)
	Publicly traded equity securities	117			(7		)	—			—			117		(7		)
	Total	$	7,814		$	(25	)	$	63		$	—		$	7,877	$	(25	)
		UNREALIZED LOSSES LESS THAN 12 MONTHS						UNREALIZED LOSSES 12 MONTHS OR GREATER						TOTAL
	July 27, 2013	Fair Value			Gross Unrealized Losses			Fair Value			Gross Unrealized Losses			Fair Value		Gross Unrealized Losses
	Fixed income securities:
	U.S. government securities	$	7,865		$	(13	)	$	—		$	—		$	7,865	$	(13	)
	U.S. government agency securities	294			(1		)	—			—			294		(1		)
	Non-U.S. government and agency securities	432			(2		)	—			—			432		(2		)
	Corporate debt securities	3,704			(50		)	4			—			3,708		(50		)
	Total fixed income securities	12,295			(66		)	4			—			12,299		(66		)
	Publicly traded equity securities	278			(4		)	—			—			278		(4		)
	Total	$	12,573		$	(70	)	$	4		$	—		$	12,577	$	(70	)
Investments Classified by Contractual Maturity Date	'
	The following table summarizes the maturities of the Company’s fixed income securities at April 26, 2014 (in millions):
		Amortized Cost			Fair Value
	Less than 1 year	$	15,022		$	15,038
	Due in 1 to 2 years	13,061			13,101
	Due in 2 to 5 years	13,380			13,415
	Due after 5 years	708			715
	Total	$	42,171		$	42,269

Fair_Value_Tables

Fair Value (Tables)	9 Months Ended
	Apr. 26, 2014
Fair Value Disclosures [Abstract]	'
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis	'
	Assets and liabilities measured at fair value on a recurring basis as of April 26, 2014 and July 27, 2013 were as follows (in millions):
		26-Apr-14											27-Jul-13
		FAIR VALUE MEASUREMENTS											FAIR VALUE MEASUREMENTS
		Level 1			Level 2				Total Balance				Level 1		Level 2		Total Balance
	Assets
	Cash equivalents:
	Money market funds	$	4,475		$	—			$	4,475			$	6,045	$	—	$	6,045
	Available-for-sale investments:
	U.S. government securities	—			31,703				31,703				—		27,823		27,823
	U.S. government agency securities	—			1,061				1,061				—		3,089		3,089
	Non-U.S. government and agency securities	—			820				820				—		1,095		1,095
	Corporate debt securities	—			8,115				8,115				—		7,881		7,881
	U.S. agency mortgage-backed securities	—			570				570				—		—		—
	Publicly traded equity securities	1,959			—				1,959				2,797		—		2,797
	Derivative assets	—			148				148				—		182		182
	Total	$	6,434		$	42,417			$	48,851			$	8,842	$	40,070	$	48,912
	Liabilities:
	Derivative liabilities	$	—		$	54			$	54			$	—	$	171	$	171
	Total	$	—		$	54			$	54			$	—	$	171	$	171
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis	'
	For the three and nine months ended April 27, 2013, the Company’s financial instruments and nonfinancial assets that were measured at fair value on a nonrecurring basis are summarized as follows (in millions):
			27-Apr-13
			Net Carrying Value as of End of Period			Total Gains (Losses) for the Three Months Ended				Total Gains (Losses) for the Nine Months Ended
	Assets held for sale		$	72		$	44			$	44
	Investments in privately held companies (impaired)		$	66		(5		)		(23		)
	Gains on assets no longer held at period end					34				34
	Net losses for nonrecurring measurement					$	73			$	55

Borrowings_Tables

Borrowings (Tables)	9 Months Ended
	Apr. 26, 2014
Debt Disclosure [Abstract]	'
Schedule Of Short-Term Debt	'
	The following table summarizes the Company’s short-term debt (in millions, except percentages):
		April 26, 2014							July 27, 2013
		Amount				Effective Rate			Amount				Effective Rate
	Current portion of long-term debt	$	500			3.11	%		$	3,273			0.63	%
	Other notes and borrowings	8				2.6	%		10				2.52	%
	Total short-term debt	$	508						$	3,283
Schedule Of Long-Term Debt	'
	The following table summarizes the Company’s long-term debt (in millions, except percentages):
				April 26, 2014						July 27, 2013
		Maturity Date		Amount				Effective Rate		Amount				Effective Rate
	Senior notes:
	Floating-rate notes:
	Three-month LIBOR plus 0.25%	March 14, 2014		$	—			—		$	1,250			0.62%
	Three-month LIBOR plus 0.05%	September 3, 2015	-1	850				0.38%		—				—
	Three-month LIBOR plus 0.28%	March 3, 2017	-1	1,000				0.58%		—				—
	Three-month LIBOR plus 0.50%	March 1, 2019	-1	500				0.79%		—				—
	Fixed-rate notes:
	1.63%	March 14, 2014		—				—		2,000				0.64%
	2.90%	November 17, 2014		500				3.11%		500				3.11%
	5.50%	February 22, 2016		3,000				3.05%		3,000				3.07%
	1.10%	March 3, 2017	-1	2,400				0.56%		—				—
	3.15%	March 14, 2017		750				0.80%		750				0.84%
	4.95%	February 15, 2019		2,000				4.69%		2,000				4.70%
	2.13%	March 1, 2019	-1	1,750				0.77%		—				—
	4.45%	January 15, 2020		2,500				2.98%		2,500				4.15%
	2.90%	March 4, 2021	-1	500				0.93%		—				—
	3.62%	March 3, 2024	-1	1,000				1.05%		—				—
	5.90%	February 15, 2039		2,000				6.11%		2,000				6.11%
	5.50%	January 15, 2040		2,000				5.67%		2,000				5.67%
	Other long-term debt			6				2.52%		21				1.46%
	Total			20,756						16,021
	Unaccreted discount			(65		)				(65		)
	Hedge accounting fair value adjustments			193						245
	Total			$	20,884					$	16,201
	Reported as:
	Current portion of long-term debt			$	500					$	3,273
	Long-term debt			20,384						12,928
	Total			$	20,884					$	16,201
Schedule Of Principal Payments For Long-Term Debt	'
	As of April 26, 2014, future principal payments for long-term debt, including the current portion, are summarized as follows (in millions):
	Fiscal Year	Amount
	2014 (remaining three months)	$	—
	2015	502
	2016	3,853
	2017	4,151
	2018	—
	Thereafter	12,250
	Total	$	20,756

Derivative_Instruments_Tables

Derivative Instruments (Tables)	9 Months Ended
	Apr. 26, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Derivatives Recorded At Fair Value	'
	The fair values of the Company’s derivative instruments and the line items on the Consolidated Balance Sheets to which they were recorded are summarized as follows (in millions):
		DERIVATIVE ASSETS										DERIVATIVE LIABILITIES
		Balance Sheet Line Item		April 26,				July 27,				Balance Sheet Line Item		April 26,				July 27,
				2014				2013						2014				2013
	Derivatives designated as hedging instruments:
	Foreign currency derivatives	Other current assets		$	17			$	33			Other current liabilities		$	3			$	7
	Interest rate derivatives	Other assets		126				147				Other long-term liabilities		8				2
	Equity derivatives	Other current assets		—				—				Other current liabilities		39				155
	Total			143				180						50				164
	Derivatives not designated as hedging instruments:
	Foreign currency derivatives	Other current assets		5				2				Other current liabilities		4				7
	Equity derivatives	Other assets		—				—				Other long-term liabilities		—				—
	Total			5				2						4				7
	Total			$	148			$	182					$	54			$	171
Gains And Losses On Derivatives Designated As Cash Flow Hedges	'
	The effects of the Company’s cash flow and net investment hedging instruments on other comprehensive income (OCI) and the Consolidated Statements of Operations are summarized as follows (in millions):
	GAINS (LOSSES) RECOGNIZED										GAINS (LOSSES) RECLASSIFIED FROM
	IN OCI ON DERIVATIVES FOR THE										AOCI INTO INCOME FOR THE
	THREE MONTHS ENDED (EFFECTIVE PORTION)										THREE MONTHS ENDED (EFFECTIVE PORTION)
	Derivatives designated as cash flow hedging instruments:		April 26,				April 27,				Line Item in Statements of Operations		April 26,				April 27,
			2014				2013						2014				2013
	Foreign currency derivatives		$	13			$	(11	)		Operating expenses		$	13			$	3
											Cost of sales—service		3				1
	Total		$	13			$	(11	)				$	16			$	4
	Derivatives designated as net investment hedging instruments:
	Foreign currency derivatives		$	(10	)		$	20			Other income (loss), net		$	—			$	—
	GAINS (LOSSES) RECOGNIZED										GAINS (LOSSES) RECLASSIFIED FROM
	IN OCI ON DERIVATIVES FOR THE										AOCI INTO INCOME FOR THE
	NINE MONTHS ENDED (EFFECTIVE PORTION)										NINE MONTHS ENDED (EFFECTIVE PORTION)
	Derivatives designated as cash flow hedging instruments:		April 26,				April 27,				Line Item in Statements of Operations		April 26,				April 27,
			2014				2013						2014				2013
	Foreign currency derivatives		$	47			$	58			Operating expenses		$	36			$	5
											Cost of sales—service		8				2
	Total		$	47			$	58					$	44			$	7
	Derivatives designated as net investment hedging instruments:
	Foreign currency derivatives		$	(13	)		$	(4	)		Other income (loss), net		$	—			$	—
Schedule Of Derivative Fair Value Hedge Instruments Gain Loss In Statement Of Financial Performance	'
	The effect on the Consolidated Statements of Operations of derivative instruments designated as fair value hedges and the underlying hedged items is summarized as follows (in millions):
					GAINS (LOSSES) ON DERIVATIVE								GAINS (LOSSES) RELATED TO HEDGED
					INSTRUMENTS FOR THE THREE MONTHS ENDED								ITEMS FOR THE THREE MONTHS ENDED
	Derivatives Designated as Fair Value Hedging Instruments		Line Item in Statements of Operations		April 26,				April 27,				April 26,				April 27,
					2014				2013				2014				2013
	Equity derivatives		Other income (loss), net		$	(8	)		$	(45	)		$	8			$	45
	Interest rate derivatives		Interest expense		8				(11		)		(8		)		11
	Total				$	—			$	(56	)		$	—			$	56
					GAINS (LOSSES) ON DERIVATIVE								GAINS (LOSSES) RELATED TO HEDGED
					INSTRUMENTS FOR THE NINE MONTHS ENDED								ITEMS FOR THE NINE MONTHS ENDED
	Derivatives Designated as Fair Value Hedging Instruments		Line Item in Statements of Operations		April 26,				April 27,				April 26,				April 27,
					2014				2013				2014				2013
	Equity derivatives		Other income (loss), net		$	(55	)		$	(87	)		$	55			$	87
	Interest rate derivatives		Interest expense		(27		)		(40		)		26				40
	Total				$	(82	)		$	(127	)		$	81			$	127
Effect Of Derivative Instruments Not Designated As Hedges On Consolidated Statement Of Operations Summary	'
	The effect on the Consolidated Statements of Operations of derivative instruments not designated as hedges is summarized as follows (in millions):
					GAINS (LOSSES) FOR THE THREE MONTHS ENDED								GAINS (LOSSES) FOR THE NINE MONTHS ENDED
	Derivatives Not Designated as Hedging Instruments		Line Item in Statements of Operations		April 26,				April 27,				April 26,				April 27,
					2014				2013				2014				2013
	Foreign currency derivatives		Other income (loss), net		$	36			$	(90	)		$	16			$	(78	)
	Total return swaps—deferred compensation		Operating expenses		4				12				33				45
	Equity derivatives		Other income (loss), net		9				(6		)		33				6
	Total				$	49			$	(84	)		$	82			$	(27	)
Schedule Of Notional Amounts Of Derivatives Outstanding	'
	The notional amounts of the Company’s outstanding derivatives are summarized as follows (in millions):
		April 26,				July 27,
		2014				2013
	Derivatives designated as hedging instruments:
	Foreign currency derivatives—cash flow hedges	$	432			$	1,885
	Interest rate derivatives	10,400				5,250
	Net investment hedging instruments	328				662
	Equity derivatives	238				1,098
	Derivatives not designated as hedging instruments:
	Foreign currency derivatives	2,864				3,739
	Total return swaps—deferred compensation	411				358
	Total	$	14,673			$	12,992
Offsetting Assets and Liabilities	'
	Information related to these offsetting arrangements is summarized as follows (in millions):
		OFFSETTING OF DERIVATIVE ASSETS
		Gross Amounts Offset in Consolidated Balance Sheets												Gross Amounts Not Offset in the Consolidated Balance Sheets, but with Legal Rights to Offset
	26-Apr-14	Gross Amount of Recognized Assets				Gross Amounts Offset in Consolidated Balance Sheets				Net Amount Presented on Consolidated Balance Sheets				Gross Derivative Amounts with Legal Rights to Offset				Cash Collateral Received			Net Amount
	Derivatives	$	148			$	—			$	148			$	(36	)		$	(5	)	$	107
		OFFSETTING OF DERIVATIVE LIABILITIES
		Gross Amounts Offset in Consolidated Balance Sheets												Gross Amounts Not Offset in the Consolidated Balance Sheets, but with Legal Rights to Offset
	26-Apr-14	Gross Amount of Recognized Liabilities				Gross Amounts Offset in Consolidated Balance Sheets				Net Amount Presented on Consolidated Balance Sheets				Gross Derivative Amounts with Legal Rights to Offset				Cash Collateral Pledged			Net Amount
	Derivatives	$	54			$	—			$	54			$	(36	)		$	(16	)	$	2
		OFFSETTING OF DERIVATIVE ASSETS
		Gross Amounts Offset in Consolidated Balance Sheets												Gross Amounts Not Offset in the Consolidated Balance Sheets, but with Legal Rights to Offset
	27-Jul-13	Gross Amount of Recognized Assets				Gross Amounts Offset in Consolidated Balance Sheets				Net Amount Presented on Consolidated Balance Sheets				Gross Derivative Amounts with Legal Rights to Offset				Cash Collateral Received			Net Amount
	Derivatives	$	182			$	—			$	182			$	(120	)		$	—		$	62
		OFFSETTING OF DERIVATIVE LIABILITIES
		Gross Amounts Offset in Consolidated Balance Sheets												Gross Amounts Not Offset in the Consolidated Balance Sheets, but with Legal Rights to Offset
	27-Jul-13	Gross Amount of Recognized Liabilities				Gross Amounts Offset in Consolidated Balance Sheets				Net Amount Presented on Consolidated Balance Sheets				Gross Derivative Amounts with Legal Rights to Offset				Cash Collateral Pledged			Net Amount
	Derivatives	$	171			$	—			$	171			$	(120	)		$	—		$	51

Commitments_And_Contingencies_

Commitments And Contingencies (Tables)	9 Months Ended
	Apr. 26, 2014
Commitments and Contingencies Disclosure [Abstract]	'
Schedule Of Future Annual Minimum Lease Payments Under All Noncancelable Operating Leases	'
	Future minimum lease payments under all noncancelable operating leases with an initial term in excess of one year as of April 26, 2014 are as follows (in millions):
	Fiscal Year	Amount
	2014 (remaining three months)	$	103
	2015	332
	2016	227
	2017	157
	2018	121
	Thereafter	243
	Total	$	1,183
Compensation Related Costs, General [Text Block]	'
	The following table summarizes the compensation expense related to acquisitions (in millions):
		Three Months Ended						Nine Months Ended
		April 26,			April 27,			April 26,		April 27,
		2014			2013			2014		2013
	Compensation expense related to acquisitions	$	95		$	44		$	505	$	79
Schedule Of Product Warranty Liability	'
	The following table summarizes the activity related to product warranty liability during the nine months ended April 26, 2014 and April 27, 2013 (in millions):
		Nine Months Ended
		April 26,			April 27,
		2014			2013
	Balance at beginning of period	$	402		$	373
	Provision for warranties issued	532			480
	Payments	(504		)	(462		)
	Balance at end of period	$	430		$	391

Shareholders_Equity_Tables

Shareholders' Equity (Tables)	9 Months Ended
	Apr. 26, 2014
Stockholders' Equity Note [Abstract]	'
Stock Repurchase Program	'
	A summary of the stock repurchase activity under the stock repurchase program, reported based on the trade date, is summarized as follows (in millions, except per-share amounts):
		Shares Repurchased	Weighted- Average Price per Share		Amount Repurchased
	Cumulative balance at July 27, 2013	3,868	$	20.4	$	78,906
	Repurchase of common stock under the stock repurchase program (1)	359	22.31		8,025
	Cumulative balance at April 26, 2014	4,227	$	20.56	$	86,931
	(1) Includes stock repurchases of $60 million, which were pending settlement as of April 26, 2014. There were no stock repurchases pending settlement as of July 27, 2013.

Employee_Benefit_Plans_Tables

Employee Benefit Plans (Tables)	9 Months Ended
	Apr. 26, 2014
Employee Service Share-based Compensation, Aggregate Disclosures [Abstract]	'
Summary Of Share-Based Compensation Expense	'
	Share-based compensation expense consists primarily of expenses for stock options, stock purchase rights, restricted stock, and restricted stock units granted to employees. The following table summarizes share-based compensation expense (in millions):
		Three Months Ended								Nine Months Ended
		April 26,				April 27,				April 26,				April 27,
		2014				2013				2014				2013
	Cost of sales—product	$	12			$	10			$	34			$	31
	Cost of sales—service	39				34				112				105
	Share-based compensation expense in cost of sales	51				44				146				136
	Research and development	106				72				306				228
	Sales and marketing	144				118				408				383
	General and administrative	52				38				153				136
	Restructuring and other charges	—				—				(4		)		(3		)
	Share-based compensation expense in operating expenses	302				228				863				744
	Total share-based compensation expense	$	353			$	272			$	1,009			$	880
	Income tax benefit for share-based compensation	$	86			$	73			$	246			$	232
Share-Based Awards Available for Grant [Table Text Block]	'
	A summary of share-based awards available for grant is as follows (in millions):
		Share-Based Awards Available for Grant
	BALANCE AT JULY 28, 2012	218
	Restricted stock, stock units, and other share-based awards granted	(102	)
	Share-based awards canceled/forfeited/expired	115
	Other	(3	)
	BALANCE AT JULY 27, 2013	228
	Restricted stock, stock units, and other share-based awards granted	(92	)
	Share-based awards canceled/forfeited/expired	29
	Additional shares reserved	135
	Shares withheld for taxes and not issued	2
	Other	1
	BALANCE AT APRIL 26, 2014	303
Summary Of Restricted Stock And Stock Unit Activity	'
	A summary of the restricted stock and stock unit activity, which includes time-based and performance-based or market-based restricted stock units, is as follows (in millions, except per-share amounts):
		Restricted Stock/Stock Units			Weighted-Average Grant Date Fair Value per Share				Aggregated Fair Market Value
	UNVESTED BALANCE AT JULY 28, 2012	128			$	19.46
	Granted and assumed	72			18.52
	Vested	(46	)		20.17				$	932
	Canceled/forfeited	(11	)		18.91
	UNVESTED BALANCE AT JULY 27, 2013	143			18.8
	Granted and assumed	67			20.74
	Vested	(43	)		19.56				$	998
	Canceled/forfeited	(10	)		18.7
	UNVESTED BALANCE AT APRIL 26, 2014	157			$	19.43
Summary Of Stock Option Activity	'
	A summary of the stock option activity is as follows (in millions, except per-share amounts):
		STOCK OPTIONS OUTSTANDING
		Number Outstanding			Weighted-Average Exercise Price per Share
	BALANCE AT JULY 28, 2012	520			$	22.68
	Assumed from acquisitions	10			0.77
	Exercised	(154	)		18.51
	Canceled/forfeited/expired	(100	)		22.18
	BALANCE AT JULY 27, 2013	276			24.44
	Assumed from acquisitions	6			3.69
	Exercised	(45	)		17.54
	Canceled/forfeited/expired	(14	)		27.41
	BALANCE AT APRIL 26, 2014	223			$	25.09
Summary Of Significant Ranges Of Outstanding And Exercisable Stock Options	'
	The following table summarizes significant ranges of outstanding and exercisable stock options as of April 26, 2014 (in millions, except years and share prices):
		STOCK OPTIONS OUTSTANDING													STOCK OPTIONS EXERCISABLE
	Range of Exercise Prices	Number Outstanding			Weighted-Average Remaining Contractual Life		Weighted-Average Exercise Price per Share				Aggregate Intrinsic Value				Number Exercisable		Weighted-Average Exercise Price per Share		Aggregate Intrinsic Value
					(in Years)
	$  0.01 – 15.00	9			5.2		$	4.29			$	180			4		$	6.11	$	85
	15.01 – 18.00	25			0.5		17.81				128				25		17.81		128
	18.01 – 20.00	7			0.6		19.22				25				7		19.22		25
	20.01 – 25.00	76			1.4		22.85				15				76		22.85		15
	25.01 – 30.00	28			2.1		26.59				—				28		26.59		—
	30.01 – 35.00	78			2.2		32.16				—				78		32.16		—
	Total	223			1.8		$	25.09			$	348			218		$	25.57	$	253
Schedule of Assumptions Used [Table Text Block]	'
	The valuation of time-based RSUs and PRSUs is summarized as follows:
		RESTRICTED STOCK UNITS								PERFORMANCE RESTRICTED STOCK UNITS
	Three Months Ended	April 26, 2014				April 27, 2013				April 26, 2014			April 27, 2013
	Number of shares granted (in millions)	6				4				2			—
	Grant date fair value per share	$	19.95			$	19.59			19.85			N/A
	Weighted-average assumptions/inputs:
	Expected dividend yield	3.1		%		2.7		%		3.5	%		N/A
	Range of risk-free interest rates	0.0% - 1.7%				0.1% - 0.9%				0.1% - 1.7%			N/A
	Range of expected volatilities for index	N/A				N/A				N/A			N/A
		RESTRICTED STOCK UNITS								PERFORMANCE RESTRICTED STOCK UNITS
	Nine Months Ended	April 26, 2014				April 27, 2013				April 26, 2014				April 27, 2013
	Number of shares granted (in millions)	53				56				6				4
	Grant date fair value per share	$	20.5			$	17.47			$	21.73			$	19.26
	Weighted-average assumptions/inputs:
	Expected dividend yield	3.1		%		3		%		2.7		%		2.9		%
	Range of risk-free interest rates	0.0% - 1.7%				0.0% - 0.9%				0.0% - 1.7%				0.1% - 0.7%
	Range of expected volatilities for index	N/A				N/A				17.4% - 70.5%				18.3% - 64.6%

Comprehensive_Income_Tables

Comprehensive Income (Tables)	9 Months Ended
	Apr. 26, 2014
AOCI components [Abstract]	'
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]	'
	The components of AOCI, net of tax, and the other comprehensive income (loss), excluding noncontrolling interest, for the nine months ended April 26, 2014 and April 27, 2013 are summarized as follows (in millions):
		Net Unrealized Gains on Investments			Net Unrealized Gains (Losses) Cash Flow Hedging Instruments			Cumulative Translation Adjustment and Other			Accumulated Other Comprehensive Income
	BALANCE AT JULY 27, 2013	$	379		$	8		$	221		$	608
	Other comprehensive income before reclassifications attributable to Cisco Systems, Inc.	339			46			32			417
	(Gains) losses reclassified out of other comprehensive income	(234		)	(44		)	—			(278		)
	Tax benefit (expense)	(43		)	(2		)	(5		)	(50		)
	BALANCE AT APRIL 26, 2014	$	441		$	8		$	248		$	697
		Net Unrealized Gains on Investments			Net Unrealized Gains (Losses) Cash Flow Hedging Instruments			Cumulative Translation Adjustment and Other			Accumulated Other Comprehensive Income
	BALANCE AT JULY 28, 2012	$	409		$	(53	)	$	305		$	661
	Other comprehensive income before reclassifications attributable to Cisco Systems, Inc.	22			59			6			87
	(Gains) losses reclassified out of other comprehensive income	(46		)	(7		)	—			(53		)
	Tax benefit (expense)	9			(1		)	(14		)	(6		)
	BALANCE AT APRIL 27, 2013	$	394		$	(2	)	$	297		$	689
Other Comprehensive Income (Loss) [Table Text Block]	'
	The net gains (losses) reclassified out of other comprehensive income into the Consolidated Statements of Operations, with line item location, during each period were as follows (in millions):
			Three Months Ended						Nine Months Ended
			April 26,			April 27,			April 26,			April 27,
			2014			2013			2014			2013
	Comprehensive Income Components		Income Before Taxes						Income Before Taxes					Line Item in Statements of Operations
	Net unrealized gains on available-for-sale investments
			$	69		$	6		$	234		$	46	Other income (loss), net
	Net unrealized gains and losses on cash flow hedging instruments
	Foreign currency derivatives		13			3			36			5		Operating expenses
	Foreign currency derivatives		3			1			8			2		Cost of sales—service
			16			4			44			7
	Total amounts reclassified out of other comprehensive income		$	85		$	10		$	278		$	53

Income_Taxes_Tables

Income Taxes (Tables)	9 Months Ended
	Apr. 26, 2014
Income Tax Disclosure [Abstract]	'
Income tax provision [Table Text Block]	'
	The following table provides details of income taxes (in millions, except percentages):
		Three Months Ended						Nine Months Ended
		April 26,			April 27,			April 26,			April 27,
		2014			2013			2014			2013
	Income before provision for income taxes	$	2,642		$	2,945		$	6,937		$	8,356
	Provision for income taxes	$	461		$	467		$	1,331		$	643
	Effective tax rate	17.4		%	15.9		%	19.2		%	7.7		%

Segment_Information_And_Major_1

Segment Information And Major Customers (Tables)	9 Months Ended
	Apr. 26, 2014
Segment Reporting [Abstract]	'
Reportable Segments	'
	Summarized financial information by segment for the three and nine months ended April 26, 2014 and April 27, 2013, based on the Company’s internal management system and as utilized by the Company’s Chief Operating Decision Maker (“CODM”), is as follows (in millions):
		Three Months Ended						Nine Months Ended
		April 26,			April 27,			April 26,			April 27,
		2014			2013			2014			2013
	Revenue:
	Americas	$	6,689		$	7,127		$	20,465		$	21,286
	EMEA	3,068			3,131			8,897			9,065
	APJC	1,788			1,958			5,423			5,839
	Total	$	11,545		$	12,216		$	34,785		$	36,190
	Gross margin:
	Americas	4,196			4,460			12,823			13,341
	EMEA	1,967			2,044			5,725			5,850
	APJC	1,076			1,197			3,148			3,494
	Segment total	7,239			7,701			21,696			22,685
	Unallocated corporate items	(233		)	(190		)	(1,332		)	(592		)
	Total	$	7,006		$	7,511		$	20,364		$	22,093
Segment Reporting Product And Services Revenue	'
	The following table presents revenue for groups of similar products and services (in millions):
		Three Months Ended						Nine Months Ended
		April 26,			April 27,			April 26,			April 27,
		2014			2013			2014			2013
	Revenue:
	Switching	$	3,381		$	3,601		$	10,406		$	10,962
	NGN Routing	1,935			2,145			5,719			6,147
	Service Provider Video	961			1,299			2,905			3,670
	Collaboration	892			1,013			2,800			2,978
	Data Center	662			515			1,868			1,480
	Wireless	553			539			1,604			1,573
	Security	361			327			1,119			1,002
	Other	75			120			219			481
	Product	8,820			9,559			26,640			28,293
	Service	2,725			2,657			8,145			7,897
	Total	$	11,545		$	12,216		$	34,785		$	36,190
Summary of Property And Equipment Information For Geographic Areas [Text Block]	'
	Property and equipment information is based on the physical location of the assets. The following table presents property and equipment information for geographic areas (in millions):
		April 26,			July 27,
		2014			2013
	Property and equipment, net:
	United States	$	2,718		$	2,780
	International	592			542
	Total	$	3,310		$	3,322

Net_Income_Per_Share_Tables

Net Income Per Share (Tables)	9 Months Ended
	Apr. 26, 2014
Earnings Per Share [Abstract]	'
Calculation Of Basic And Diluted Net Income Per Share	'
	The following table presents the calculation of basic and diluted net income per share (in millions, except per-share amounts):
		Three Months Ended				Nine Months Ended
		April 26,		April 27,		April 26,		April 27,
		2014		2013		2014		2013
	Net income	$	2,181	$	2,478	$	5,606	$	7,713
	Weighted-average shares—basic	5,143		5,329		5,271		5,316
	Effect of dilutive potential common shares	37		58		40		45
	Weighted-average shares—diluted	5,180		5,387		5,311		5,361
	Net income per share—basic	$	0.42	$	0.47	$	1.06	$	1.45
	Net income per share—diluted	$	0.42	$	0.46	$	1.06	$	1.44
	Antidilutive employee share-based awards, excluded	240		245		331		417

Supplemental_Information_Addit

Supplemental Information Additional Information (Detail) (USD $)	Apr. 26, 2014	Jul. 27, 2013
Share data in Millions, unless otherwise specified
Supplementary Information[Line Items]	'	'
Stock Repurchase Program, Authorized Amount	$97,000,000,000	'
Repurchases of common stock under the repurchase program, shares	4,227	3,868
Repurchases of common stock under the repurchase program, value	86,931,000,000	78,906,000,000
Common Stock Including Additional Paid in Capital [Member]	'	'
Supplementary Information[Line Items]	'	'
Repurchases of common stock under the repurchase program, value	20,839,000,000	'
Retained Earnings [Member]	'	'
Supplementary Information[Line Items]	'	'
Repurchases of common stock under the repurchase program, value	66,092,000,000	'
Parent [Member]	'	'
Supplementary Information[Line Items]	'	'
Repurchases of common stock under the repurchase program, value	$86,931,000,000	'

Business_Combinations_Summary_

Business Combinations (Summary Of Allocation Of Total Purchase Consideration) (Detail) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Apr. 26, 2014
Business Acquisition [Line Items]	'
Purchase consideration	$2,970
Net Tangible Assets Acquired (Liabilities Assumed)	35
Purchased Intangible Assets	763
Goodwill	2,172
Composite Software, Inc.	'
Business Acquisition [Line Items]	'
Purchase consideration	160
Net Tangible Assets Acquired (Liabilities Assumed)	-10
Purchased Intangible Assets	75
Goodwill	95
Sourcefire, Inc.	'
Business Acquisition [Line Items]	'
Purchase consideration	2,449
Net Tangible Assets Acquired (Liabilities Assumed)	81
Purchased Intangible Assets	577
Goodwill	1,791
WhipTail Technologies, Inc.	'
Business Acquisition [Line Items]	'
Purchase consideration	351
Net Tangible Assets Acquired (Liabilities Assumed)	-34
Purchased Intangible Assets	105
Goodwill	280
Other Acquisitions	'
Business Acquisition [Line Items]	'
Purchase consideration	10
Net Tangible Assets Acquired (Liabilities Assumed)	-2
Purchased Intangible Assets	6
Goodwill	$6

Business_Combinations_Addition

Business Combinations - Additional Information (Detail) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Apr. 26, 2014	Apr. 27, 2013
	acquisition
Business Combinations [Abstract]	'	'
Number of Businesses Acquired (In numbers)	5	'
Cash Acquired from Acquisition	$132	'
Business Combination, Acquisition Related Costs	$7	$23

Goodwill_And_Purchased_Intangi2

Goodwill And Purchased Intangible Assets (Scedule Of Goodwill By Reportable Segments) (Detail) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Apr. 26, 2014
Goodwill [Roll Forward]	'
Balance, beginning	$21,919
Acquisitions	2,172
Other	-15
Balance, ending	24,076
Americas	'
Goodwill [Roll Forward]	'
Balance, beginning	13,800
Acquisitions	1,198
Other	-12
Balance, ending	14,986
EMEA	'
Goodwill [Roll Forward]	'
Balance, beginning	5,037
Acquisitions	638
Other	-3
Balance, ending	5,672
APJC	'
Goodwill [Roll Forward]	'
Balance, beginning	3,082
Acquisitions	336
Other	0
Balance, ending	$3,418

Goodwill_And_Purchased_Intangi3

Goodwill And Purchased Intangible Assets (Schedule Of Intangible Assets Acquired Through Business Combinations) (Detail) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Apr. 26, 2014
Schedule Of Finite Lived And Indefinite Lived Intangible Assets Acquired Through Business Combinations [Line Items]	'
Amount, total acquired Intangible Assets	$763
Composite Software, Inc.	'
Schedule Of Finite Lived And Indefinite Lived Intangible Assets Acquired Through Business Combinations [Line Items]	'
Amount, total acquired Intangible Assets	75
Sourcefire, Inc.	'
Schedule Of Finite Lived And Indefinite Lived Intangible Assets Acquired Through Business Combinations [Line Items]	'
Amount, total acquired Intangible Assets	577
WhipTail Technologies, Inc.	'
Schedule Of Finite Lived And Indefinite Lived Intangible Assets Acquired Through Business Combinations [Line Items]	'
Amount, total acquired Intangible Assets	105
Other Acquisitions	'
Schedule Of Finite Lived And Indefinite Lived Intangible Assets Acquired Through Business Combinations [Line Items]	'
Amount, total acquired Intangible Assets	6
In Process Research and Development [Member]	'
Schedule Of Finite Lived And Indefinite Lived Intangible Assets Acquired Through Business Combinations [Line Items]	'
Amount, acquired indefinite lives	61
In Process Research and Development [Member] | Composite Software, Inc.	'
Schedule Of Finite Lived And Indefinite Lived Intangible Assets Acquired Through Business Combinations [Line Items]	'
Amount, acquired indefinite lives	1
In Process Research and Development [Member] | Sourcefire, Inc.	'
Schedule Of Finite Lived And Indefinite Lived Intangible Assets Acquired Through Business Combinations [Line Items]	'
Amount, acquired indefinite lives	22
In Process Research and Development [Member] | WhipTail Technologies, Inc.	'
Schedule Of Finite Lived And Indefinite Lived Intangible Assets Acquired Through Business Combinations [Line Items]	'
Amount, acquired indefinite lives	38
In Process Research and Development [Member] | Other Acquisitions	'
Schedule Of Finite Lived And Indefinite Lived Intangible Assets Acquired Through Business Combinations [Line Items]	'
Amount, acquired indefinite lives	0
Technology [Member]	'
Schedule Of Finite Lived And Indefinite Lived Intangible Assets Acquired Through Business Combinations [Line Items]	'
Amount, acquired finite-lived	529
Technology [Member] | Composite Software, Inc.	'
Schedule Of Finite Lived And Indefinite Lived Intangible Assets Acquired Through Business Combinations [Line Items]	'
Weighted-Average Useful Life (in Years)	'6 years
Amount, acquired finite-lived	60
Technology [Member] | Sourcefire, Inc.	'
Schedule Of Finite Lived And Indefinite Lived Intangible Assets Acquired Through Business Combinations [Line Items]	'
Weighted-Average Useful Life (in Years)	'7 years
Amount, acquired finite-lived	400
Technology [Member] | WhipTail Technologies, Inc.	'
Schedule Of Finite Lived And Indefinite Lived Intangible Assets Acquired Through Business Combinations [Line Items]	'
Weighted-Average Useful Life (in Years)	'5 years
Amount, acquired finite-lived	63
Technology [Member] | Other Acquisitions	'
Schedule Of Finite Lived And Indefinite Lived Intangible Assets Acquired Through Business Combinations [Line Items]	'
Weighted-Average Useful Life (in Years)	'3 years
Amount, acquired finite-lived	6
Customer Relationships [Member]	'
Schedule Of Finite Lived And Indefinite Lived Intangible Assets Acquired Through Business Combinations [Line Items]	'
Amount, acquired finite-lived	144
Customer Relationships [Member] | Composite Software, Inc.	'
Schedule Of Finite Lived And Indefinite Lived Intangible Assets Acquired Through Business Combinations [Line Items]	'
Weighted-Average Useful Life (in Years)	'3 years 10 months 8 days
Amount, acquired finite-lived	14
Customer Relationships [Member] | Sourcefire, Inc.	'
Schedule Of Finite Lived And Indefinite Lived Intangible Assets Acquired Through Business Combinations [Line Items]	'
Weighted-Average Useful Life (in Years)	'5 years
Amount, acquired finite-lived	129
Customer Relationships [Member] | WhipTail Technologies, Inc.	'
Schedule Of Finite Lived And Indefinite Lived Intangible Assets Acquired Through Business Combinations [Line Items]	'
Weighted-Average Useful Life (in Years)	'5 years
Amount, acquired finite-lived	1
Customer Relationships [Member] | Other Acquisitions	'
Schedule Of Finite Lived And Indefinite Lived Intangible Assets Acquired Through Business Combinations [Line Items]	'
Weighted-Average Useful Life (in Years)	'0 years
Amount, acquired finite-lived	0
Other Intangible Assets	'
Schedule Of Finite Lived And Indefinite Lived Intangible Assets Acquired Through Business Combinations [Line Items]	'
Amount, acquired finite-lived	29
Other Intangible Assets | Composite Software, Inc.	'
Schedule Of Finite Lived And Indefinite Lived Intangible Assets Acquired Through Business Combinations [Line Items]	'
Weighted-Average Useful Life (in Years)	'0 years
Amount, acquired finite-lived	0
Other Intangible Assets | Sourcefire, Inc.	'
Schedule Of Finite Lived And Indefinite Lived Intangible Assets Acquired Through Business Combinations [Line Items]	'
Weighted-Average Useful Life (in Years)	'3 years
Amount, acquired finite-lived	26
Other Intangible Assets | WhipTail Technologies, Inc.	'
Schedule Of Finite Lived And Indefinite Lived Intangible Assets Acquired Through Business Combinations [Line Items]	'
Weighted-Average Useful Life (in Years)	'2 years 8 months 12 days
Amount, acquired finite-lived	3
Other Intangible Assets | Other Acquisitions	'
Schedule Of Finite Lived And Indefinite Lived Intangible Assets Acquired Through Business Combinations [Line Items]	'
Weighted-Average Useful Life (in Years)	'0 years
Amount, acquired finite-lived	$0

Goodwill_And_Purchased_Intangi4

Goodwill And Purchased Intangible Assets (Schedule Of Purchased Intangible Assets With Finite And Indefinite Lives) (Detail) (USD $)	Apr. 26, 2014	Jul. 27, 2013
In Millions, unless otherwise specified
Business Acquisition [Line Items]	'	'
Finite-Lived Intangible Assets, Gross	$5,871	$5,159
Accumulated Amortization	-2,554	-1,842
Finite-Lived Intangible Assets, Net	3,317	3,317
Indefinite-Lived Intangible Assets (Excluding Goodwill)	144	86
Gross Purchased Intangibles	6,015	5,245
Total Purchased intangible assets, net	3,461	3,403
Technology [Member]	'	'
Business Acquisition [Line Items]	'	'
Finite-Lived Intangible Assets, Gross	4,117	3,563
Accumulated Amortization	-1,885	-1,366
Finite-Lived Intangible Assets, Net	2,232	2,197
Customer Relationships [Member]	'	'
Business Acquisition [Line Items]	'	'
Finite-Lived Intangible Assets, Gross	1,698	1,566
Accumulated Amortization	-653	-466
Finite-Lived Intangible Assets, Net	1,045	1,100
Other Intangible Assets	'	'
Business Acquisition [Line Items]	'	'
Finite-Lived Intangible Assets, Gross	56	30
Accumulated Amortization	-16	-10
Finite-Lived Intangible Assets, Net	$40	$20

Goodwill_And_Purchased_Intangi5

Goodwill And Purchased Intangible Assets (Schedule Of Amortization Of Purchased Intangible Assets) (Detail) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Apr. 26, 2014	Apr. 27, 2013	Apr. 26, 2014	Apr. 27, 2013
Acquired Finite-Lived Intangible Assets [Line Items]	'	'	'	'
Amortization of Purchased Intangible Assets	$71	$89	$207	$329
Cost of Sales	'	'	'	'
Acquired Finite-Lived Intangible Assets [Line Items]	'	'	'	'
Amortization of Purchased Intangible Assets	190	156	553	444
Operating Expenses	'	'	'	'
Acquired Finite-Lived Intangible Assets [Line Items]	'	'	'	'
Amortization of Purchased Intangible Assets	71	89	207	329
Cost of Sales and Operating Expenses [Member]	'	'	'	'
Acquired Finite-Lived Intangible Assets [Line Items]	'	'	'	'
Amortization of Purchased Intangible Assets	$261	$245	$760	$773

Goodwill_And_Purchased_Intangi6

Goodwill And Purchased Intangible Assets (Schedule Of Estimated Future Amortization Expense Of Purchased Intangible Assets) (Detail) (USD $)	Apr. 26, 2014	Jul. 27, 2013
In Millions, unless otherwise specified
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]	'	'
2014 (remaining three months)	$259	'
2015	959	'
2016	726	'
2017	550	'
2018	398	'
Thereafter	425	'
Total	$3,317	$3,317

Goodwill_And_Purchased_Intangi7

Goodwill And Purchased Intangible Assets - Additional Information (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Apr. 26, 2014	Apr. 27, 2013	Apr. 26, 2014	Apr. 27, 2013
Goodwill and Purchased Intangible Assets - Additional Information [Abstract]	'	'	'	'
Impairment of Intangible Assets	$0	$0	$0	$0

Restructuring_And_Other_Charge2

Restructuring And Other Charges (Schedule Of Activities Related To Restructuring And Other Charges) (Detail) (August Fiscal 2014 Restructuring Plan, USD $)	3 Months Ended	9 Months Ended
In Millions, unless otherwise specified	Apr. 26, 2014	Apr. 26, 2014
Restructuring Cost and Reserve [Line Items]	'	'
Restructuring Charges	$26	$336
Cash Payments	'	-306
Non-Cash Items	'	-5
Restructuring Reserve	25	25
Employee Severance	'	'
Restructuring Cost and Reserve [Line Items]	'	'
Severance Costs	'	331
Cash Payments	'	-306
Non-Cash Items	'	0
Restructuring Reserve	25	25
Other Charges	'	'
Restructuring Cost and Reserve [Line Items]	'	'
Other	'	5
Cash Payments	'	0
Non-Cash Items	'	-5
Restructuring Reserve	$0	$0

Restructuring_And_Other_Charge3

Restructuring And Other Charges (Additional Information) (Detail) (USD $)	3 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended	12 Months Ended
	Apr. 26, 2014	Apr. 26, 2014	Apr. 27, 2013	Apr. 27, 2013	Jul. 27, 2013	Apr. 26, 2014
	August Fiscal 2014 Restructuring Plan	August Fiscal 2014 Restructuring Plan	Fiscal 2011 Plans	Fiscal 2011 Plans	Fiscal 2011 Plans	Fiscal 2011 Plans
		positions
Restructuring Cost and Reserve [Line Items]	'	'	'	'	'	'
Expected Number of Positions Eliminated (headcounts)	'	4,000	'	'	'	'
Restructuring, position eliminated of total positions, percent	'	5.00%	'	'	'	'
Restructuring Charges	$26,000,000	$336,000,000	$33,000,000	$105,000,000	'	'
Restructuring and Related Cost, Expected Cost	'	500,000,000	'	'	'	'
Restructuring and Related Cost, Cost Incurred to Date	'	'	'	'	1,100,000,000	'
Restructuring Reserve	$25,000,000	$25,000,000	'	'	'	$4,000,000

Balance_Sheet_Details_Detail

Balance Sheet Details (Detail) (USD $)	Apr. 26, 2014		Jul. 27, 2013
In Millions, unless otherwise specified
Inventories:	'		'
Raw materials	$57		$105
Work in process	5		24
Distributor inventory and deferred cost of sales	623		572
Manufactured finished goods	550		480
Total finished goods	1,173		1,052
Service-related spares	255		256
Demonstration systems	38		39
Total	1,528		1,476
Property and Equipment, net:	'		'
Land, buildings, and building & leasehold improvements	4,496		4,426
Computer equipment and related software	1,442		1,416
Production, engineering, and other equipment	5,750		5,721
Operating lease assets	360	[1]	326	[1]
Furniture and fixtures	508		497
Property, plant and equipment, gross	12,556		12,386
Less accumulated depreciation and amortization	-9,246	[1]	-9,064	[1]
Total	3,310		3,322
Other Assets:	'		'
Deferred tax assets	1,540		1,539
Investments in privately held companies	923		833
Other Assets	721		743
Total	3,184		3,115
Deferred Revenue Arrangement [Line Items]	'		'
Deferred Revenue, Current	9,198		9,262
Deferred Revenue, Noncurrent	3,953		4,161
Deferred Revenue	13,151		13,423
Service	'		'
Deferred Revenue Arrangement [Line Items]	'		'
Deferred Revenue	8,746		9,403
Product	'		'
Deferred Revenue Arrangement [Line Items]	'		'
Deferred Revenue	4,405		4,020
Product | Unrecognized revenue on product shipments and other [Member]	'		'
Deferred Revenue Arrangement [Line Items]	'		'
Deferred Revenue	3,669		3,340
Product | Cash receipts related to revenue from two-tier distributors [Member]	'		'
Deferred Revenue Arrangement [Line Items]	'		'
Deferred Revenue	$736		$680
[1]	Accumulated depreciation related to operating lease assets was $198 and $203 as of April 26, 2014 and July 27, 2013, respectively.

Balance_Sheet_Details_Parenthe

Balance Sheet Details (Parenthetical) (Detail) (USD $)	Apr. 26, 2014	Jul. 27, 2013
In Millions, unless otherwise specified
Disclosure Balance Sheet Details [Abstract]	'	'
Accumulated Depreciation for Operating Lease Assets	$198	$203

Financing_Receivables_And_Guar2

Financing Receivables And Guarantees (Schedule Of Financing Receivables) (Detail) (USD $)	Apr. 26, 2014	Jan. 25, 2014	Jul. 27, 2013	Apr. 27, 2013	Jan. 26, 2013	Jul. 28, 2012
In Millions, unless otherwise specified
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'	'	'
Gross	$8,214	'	$8,565	'	'	'
Unearned income	-246	'	-273	'	'	'
Allowance for Credit Losses	-360	-374	-344	-357	-361	-380
Total, net	7,608	'	7,948	'	'	'
Current	4,071	'	4,037	'	'	'
Noncurrent	3,537	'	3,911	'	'	'
Lease Receivables	'	'	'	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'	'	'
Gross	3,783	'	3,780	'	'	'
Unearned income	-246	'	-273	'	'	'
Allowance for Credit Losses	-249	'	-238	'	'	'
Total, net	3,288	'	3,269	'	'	'
Current	1,480	'	1,418	'	'	'
Noncurrent	1,808	'	1,851	'	'	'
Loan Receivables	'	'	'	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'	'	'
Gross	1,621	'	1,649	'	'	'
Unearned income	0	'	0	'	'	'
Allowance for Credit Losses	-92	'	-86	'	'	'
Total, net	1,529	'	1,563	'	'	'
Current	814	'	898	'	'	'
Noncurrent	715	'	665	'	'	'
Financed Service Contracts And Other	'	'	'	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'	'	'
Gross	2,810	'	3,136	'	'	'
Unearned income	0	'	0	'	'	'
Allowance for Credit Losses	-19	'	-20	'	'	'
Total, net	2,791	'	3,116	'	'	'
Current	1,777	'	1,721	'	'	'
Noncurrent	$1,014	'	$1,395	'	'	'

Financing_Receivables_And_Guar3

Financing Receivables And Guarantees (Contractual Maturities Of The Gross Lease Receivables) (Detail) (USD $)	Apr. 26, 2014
In Millions, unless otherwise specified
Financing Receivables And Guarantees [Abstract]	'
2014 (remaining three months)	$589
2015	1,471
2016	971
2017	524
2018	194
Thereafter	34
Total	$3,783

Financing_Receivables_And_Guar4

Financing Receivables And Guarantees (Schedule Of Financing Receivables Categorized By Internal Credit Risk Rating) (Detail) (USD $)	Apr. 26, 2014	Jul. 27, 2013	Apr. 27, 2013
In Millions, unless otherwise specified
Financing Receivables And Guarantees [Line Items]	'	'	'
Gross Receivables, Net of Unearned Income	$7,968	$8,292	$8,073
Rating One To Four [Member]	'	'	'
Financing Receivables And Guarantees [Line Items]	'	'	'
Gross Receivables, Net of Unearned Income	4,067	4,399	'
Rating Five To Six [Member]	'	'	'
Financing Receivables And Guarantees [Line Items]	'	'	'
Gross Receivables, Net of Unearned Income	3,312	3,400	'
Rating Seven And Higher [Member]	'	'	'
Financing Receivables And Guarantees [Line Items]	'	'	'
Gross Receivables, Net of Unearned Income	346	242	'
Total Internal Credit Risk Rating [Member]	'	'	'
Financing Receivables And Guarantees [Line Items]	'	'	'
Gross Receivables, Net of Unearned Income	7,725	8,041	'
Residual Value [Member]	'	'	'
Financing Receivables And Guarantees [Line Items]	'	'	'
Gross Receivables, Net of Unearned Income	243	251	'
Lease Receivables	'	'	'
Financing Receivables And Guarantees [Line Items]	'	'	'
Gross Receivables, Net of Unearned Income	3,537	3,507	3,478
Lease Receivables | Rating One To Four [Member]	'	'	'
Financing Receivables And Guarantees [Line Items]	'	'	'
Gross Receivables, Net of Unearned Income	1,604	1,681	'
Lease Receivables | Rating Five To Six [Member]	'	'	'
Financing Receivables And Guarantees [Line Items]	'	'	'
Gross Receivables, Net of Unearned Income	1,557	1,482	'
Lease Receivables | Rating Seven And Higher [Member]	'	'	'
Financing Receivables And Guarantees [Line Items]	'	'	'
Gross Receivables, Net of Unearned Income	133	93	'
Lease Receivables | Total Internal Credit Risk Rating [Member]	'	'	'
Financing Receivables And Guarantees [Line Items]	'	'	'
Gross Receivables, Net of Unearned Income	3,294	3,256	'
Lease Receivables | Residual Value [Member]	'	'	'
Financing Receivables And Guarantees [Line Items]	'	'	'
Gross Receivables, Net of Unearned Income	243	251	'
Loan Receivables	'	'	'
Financing Receivables And Guarantees [Line Items]	'	'	'
Gross Receivables, Net of Unearned Income	1,621	1,649	1,671
Loan Receivables | Rating One To Four [Member]	'	'	'
Financing Receivables And Guarantees [Line Items]	'	'	'
Gross Receivables, Net of Unearned Income	894	842	'
Loan Receivables | Rating Five To Six [Member]	'	'	'
Financing Receivables And Guarantees [Line Items]	'	'	'
Gross Receivables, Net of Unearned Income	595	777	'
Loan Receivables | Rating Seven And Higher [Member]	'	'	'
Financing Receivables And Guarantees [Line Items]	'	'	'
Gross Receivables, Net of Unearned Income	132	30	'
Loan Receivables | Total Internal Credit Risk Rating [Member]	'	'	'
Financing Receivables And Guarantees [Line Items]	'	'	'
Gross Receivables, Net of Unearned Income	1,621	1,649	'
Loan Receivables | Residual Value [Member]	'	'	'
Financing Receivables And Guarantees [Line Items]	'	'	'
Gross Receivables, Net of Unearned Income	0	0	'
Financed Service Contracts And Other	'	'	'
Financing Receivables And Guarantees [Line Items]	'	'	'
Gross Receivables, Net of Unearned Income	2,810	3,136	2,924
Financed Service Contracts And Other | Rating One To Four [Member]	'	'	'
Financing Receivables And Guarantees [Line Items]	'	'	'
Gross Receivables, Net of Unearned Income	1,569	1,876	'
Financed Service Contracts And Other | Rating Five To Six [Member]	'	'	'
Financing Receivables And Guarantees [Line Items]	'	'	'
Gross Receivables, Net of Unearned Income	1,160	1,141	'
Financed Service Contracts And Other | Rating Seven And Higher [Member]	'	'	'
Financing Receivables And Guarantees [Line Items]	'	'	'
Gross Receivables, Net of Unearned Income	81	119	'
Financed Service Contracts And Other | Total Internal Credit Risk Rating [Member]	'	'	'
Financing Receivables And Guarantees [Line Items]	'	'	'
Gross Receivables, Net of Unearned Income	2,810	3,136	'
Financed Service Contracts And Other | Residual Value [Member]	'	'	'
Financing Receivables And Guarantees [Line Items]	'	'	'
Gross Receivables, Net of Unearned Income	$0	$0	'

Financing_Receivables_And_Guar5

Financing Receivables And Guarantees (Schedule Of Financing Receivables By Portfolio Segment Aging Analysis) (Detail) (USD $)	Apr. 26, 2014	Jul. 27, 2013	Apr. 27, 2013
In Millions, unless otherwise specified
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'
31 to 60 Days Past Due	$316	$166	'
61 to 90 Days Past Due	143	99	'
Greater Than 90 Days Past Due	419	527	'
Total Past Due	878	792	'
Financing Receivable Current	7,090	7,500	'
Gross Financing Receivable, Net of Unearned	7,968	8,292	8,073
Non-accrual financing receivables	86	56	'
Impaired Financing Receivables	70	42	'
Lease Receivables	'	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'
31 to 60 Days Past Due	83	85	'
61 to 90 Days Past Due	41	48	'
Greater Than 90 Days Past Due	165	124	'
Total Past Due	289	257	'
Financing Receivable Current	3,248	3,250	'
Gross Financing Receivable, Net of Unearned	3,537	3,507	3,478
Non-accrual financing receivables	67	27	'
Impaired Financing Receivables	54	22	'
Loan Receivables	'	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'
31 to 60 Days Past Due	5	6	'
61 to 90 Days Past Due	6	3	'
Greater Than 90 Days Past Due	15	11	'
Total Past Due	26	20	'
Financing Receivable Current	1,595	1,629	'
Gross Financing Receivable, Net of Unearned	1,621	1,649	1,671
Non-accrual financing receivables	8	11	'
Impaired Financing Receivables	8	9	'
Financed Service Contracts And Other	'	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'
31 to 60 Days Past Due	228	75	'
61 to 90 Days Past Due	96	48	'
Greater Than 90 Days Past Due	239	392	'
Total Past Due	563	515	'
Financing Receivable Current	2,247	2,621	'
Gross Financing Receivable, Net of Unearned	2,810	3,136	2,924
Non-accrual financing receivables	11	18	'
Impaired Financing Receivables	$8	$11	'

Financing_Receivables_And_Guar6

Financing Receivables And Guarantees (Allowance For Credit Loss And Related Financing Receivables) (Detail) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Apr. 26, 2014	Apr. 27, 2013	Apr. 26, 2014	Apr. 27, 2013	Jul. 27, 2013
Financing Receivable, Allowance for Credit losses [Line Items]	'	'	'	'	'
Financing Receivable, Allowance for Credit Losses	$374	$361	$344	$380	'
Provisions	-18	44	14	20	'
Recoveries (write-offs), net	'	-44	'	-44	'
Recoveries (write-offs), net	2	'	3	'	'
Foreign exchange and other	2	-4	-1	1	'
Financing Receivable, Allowance for Credit Losses	360	357	360	357	'
Gross Receivables, Net of Unearned Income	7,968	8,073	7,968	8,073	8,292
Lease Receivables	'	'	'	'	'
Financing Receivable, Allowance for Credit losses [Line Items]	'	'	'	'	'
Financing Receivable, Allowance for Credit Losses	254	247	238	247	'
Provisions	-6	30	9	27	'
Recoveries (write-offs), net	-1	-29	0	-29	'
Foreign exchange and other	2	-3	2	0	'
Financing Receivable, Allowance for Credit Losses	249	245	249	245	'
Gross Receivables, Net of Unearned Income	3,537	3,478	3,537	3,478	3,507
Loan Receivables	'	'	'	'	'
Financing Receivable, Allowance for Credit losses [Line Items]	'	'	'	'	'
Financing Receivable, Allowance for Credit Losses	98	101	86	122	'
Provisions	-10	8	5	-15	'
Recoveries (write-offs), net	'	-15	'	-15	'
Recoveries (write-offs), net	4	'	4	'	'
Foreign exchange and other	0	-1	-3	1	'
Financing Receivable, Allowance for Credit Losses	92	93	92	93	'
Gross Receivables, Net of Unearned Income	1,621	1,671	1,621	1,671	1,649
Financed Service Contracts And Other	'	'	'	'	'
Financing Receivable, Allowance for Credit losses [Line Items]	'	'	'	'	'
Financing Receivable, Allowance for Credit Losses	22	13	20	11	'
Provisions	-2	6	0	8	'
Recoveries (write-offs), net	-1	0	-1	0	'
Foreign exchange and other	0	0	0	0	'
Financing Receivable, Allowance for Credit Losses	19	19	19	19	'
Gross Receivables, Net of Unearned Income	$2,810	$2,924	$2,810	$2,924	$3,136

Financing_Receivables_And_Guar7

Financing Receivables And Guarantees (Schedule Of Financing Guarantees Outstanding) (Detail) (USD $)	Apr. 26, 2014	Jul. 27, 2013
In Millions, unless otherwise specified
Financing Guarantee Summary [Line Items]	'	'
Maximum potential future payments relating to financing guarantees	$476	$675
Deferred revenue associated with financing guarantees	-330	-416
Maximum potential future payments relating to financing guarantees, net of associated deferred revenue	146	259
Channel Partner	'	'
Financing Guarantee Summary [Line Items]	'	'
Maximum potential future payments relating to financing guarantees	247	438
Deferred revenue associated with financing guarantees	-132	-225
End User	'	'
Financing Guarantee Summary [Line Items]	'	'
Maximum potential future payments relating to financing guarantees	229	237
Deferred revenue associated with financing guarantees	($198)	($191)

Financing_Receivables_And_Guar8

Financing Receivables And Guarantees (Additional Information) (Detail) (USD $)	3 Months Ended		9 Months Ended
	Apr. 26, 2014	Apr. 27, 2013	Apr. 26, 2014	Apr. 27, 2013	Jul. 27, 2013
			D
Financing Receivables And Guarantees [Line Items]	'	'	'	'	'
Average term of lease arrangements (in years)	'	'	'4 years	'	'
Term of Loan Receivable Arrangement	'	'	'3 years	'	'
Deferred Revenue	$13,151,000,000	'	$13,151,000,000	'	$13,423,000,000
Financing receivable, allowance for credit loss and deferred revenue	1,989,000,000	'	1,989,000,000	'	2,453,000,000
Gross Receivables, Net of Unearned Income	7,968,000,000	8,073,000,000	7,968,000,000	8,073,000,000	8,292,000,000
Threshold period for past due receivables (in days)	'31 days	'	'	'	'
Unbilled Or Current In Greater Than Ninety Days Past Due	295,000,000	'	295,000,000	'	406,000,000
Financing Receivable, Over 90 Days Past Due and Still Accruing	88,000,000	'	88,000,000	'	87,000,000
Risk rating for receivables deemed to be impaired, minimum (Credit risk rating)	'	'	8	'	'
Channel partners revolving short-term financing payment term, minimum (days)	'	'	60	'	'
Channel partners revolving short-term financing payment term, maximum (days)	'	'	90	'	'
Volume of channel partner financing	5,800,000,000	5,800,000,000	17,900,000,000	17,200,000,000	'
Balance of the channel partner financing subject to guarantees	1,100,000,000	'	1,100,000,000	'	1,400,000,000
End User Lease And Loan Term Maximum	'	'	'3 years	'	'
Financing provided by third parties for leases and loans on which the Company has provided guarantees	44,000,000	38,000,000	89,000,000	137,000,000	'
Minimum	'	'	'	'	'
Financing Receivables And Guarantees [Line Items]	'	'	'	'	'
Financing Receivable (Credit Risk Rating)	'	'	'1	'	'
Maximum	'	'	'	'	'
Financing Receivables And Guarantees [Line Items]	'	'	'	'	'
Financing Receivable (Credit Risk Rating)	'	'	'10	'	'
Financed Service Contracts And Other	'	'	'	'	'
Financing Receivables And Guarantees [Line Items]	'	'	'	'	'
Deferred Revenue	$1,592,000,000	'	$1,592,000,000	'	$2,036,000,000
Financed Service Contracts And Other | Minimum	'	'	'	'	'
Financing Receivables And Guarantees [Line Items]	'	'	'	'	'
Services revenue recognized ratably (in years)	'	'	'1 year	'	'
Financed Service Contracts And Other | Maximum	'	'	'	'	'
Financing Receivables And Guarantees [Line Items]	'	'	'	'	'
Services revenue recognized ratably (in years)	'	'	'3 years	'	'
Investment Grade | Minimum	'	'	'	'	'
Financing Receivables And Guarantees [Line Items]	'	'	'	'	'
Financing Receivable (Credit Risk Rating)	'	'	'1	'	'
Investment Grade | Maximum	'	'	'	'	'
Financing Receivables And Guarantees [Line Items]	'	'	'	'	'
Financing Receivable (Credit Risk Rating)	'	'	'4	'	'
Non-investment Grade | Minimum	'	'	'	'	'
Financing Receivables And Guarantees [Line Items]	'	'	'	'	'
Financing Receivable (Credit Risk Rating)	'	'	'5	'	'
Non-investment Grade | Maximum	'	'	'	'	'
Financing Receivables And Guarantees [Line Items]	'	'	'	'	'
Financing Receivable (Credit Risk Rating)	'	'	'6	'	'
Substandard | Minimum	'	'	'	'	'
Financing Receivables And Guarantees [Line Items]	'	'	'	'	'
Financing Receivable (Credit Risk Rating)	'	'	'7	'	'

Investments_Summary_Of_Availab

Investments (Summary Of Available-For-Sale Investments) (Detail) (USD $)	9 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Apr. 26, 2014	Jul. 27, 2013
Schedule of Investments [Line Items]	'	'
Amortized Cost	$43,485	$41,930
Gross Unrealized Gains	768	825
Gross Unrealized Losses	-25	-70
Fair Value	44,228	42,685
Publicly Traded Equity Securities	'	'
Schedule of Investments [Line Items]	'	'
Amortized Cost	1,314	2,063
Gross Unrealized Gains	652	738
Gross Unrealized Losses	-7	-4
Fair Value	1,959	2,797
Fixed Income Investments [Member]	'	'
Schedule of Investments [Line Items]	'	'
Amortized Cost	42,171	39,867
Gross Unrealized Gains	116	87
Gross Unrealized Losses	-18	-66
Fair Value	42,269	39,888
Fixed Income Investments [Member] | US Government Securities[Member]	'	'
Schedule of Investments [Line Items]	'	'
Amortized Cost	31,675	27,814
Gross Unrealized Gains	34	22
Gross Unrealized Losses	-6	-13
Fair Value	31,703	27,823
Fixed Income Investments [Member] | US Government Agencies Securities [Member]	'	'
Schedule of Investments [Line Items]	'	'
Amortized Cost	1,060	3,083
Gross Unrealized Gains	2	7
Gross Unrealized Losses	-1	-1
Fair Value	1,061	3,089
Fixed Income Investments [Member] | Non-US Government and Agency Securities [Member]	'	'
Schedule of Investments [Line Items]	'	'
Amortized Cost	819	1,094
Gross Unrealized Gains	2	3
Gross Unrealized Losses	-1	-2
Fair Value	820	1,095
Fixed Income Investments [Member] | Corporate Debt Securities [Member]	'	'
Schedule of Investments [Line Items]	'	'
Amortized Cost	8,050	7,876
Gross Unrealized Gains	75	55
Gross Unrealized Losses	-10	-50
Fair Value	8,115	7,881
Fixed Income Investments [Member] | U.S. agency mortgage-backed Securities	'	'
Schedule of Investments [Line Items]	'	'
Amortized Cost	567	'
Gross Unrealized Gains	3	'
Gross Unrealized Losses	0	'
Fair Value	$570	'

Investments_Investments_Gross_

Investments Investments (Gross Realized Gains And Gross Realized Losses Related To Available-For-Sale Investments) (Detail) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Apr. 26, 2014	Apr. 27, 2013	Apr. 26, 2014	Apr. 27, 2013
Investments (Gains and Losses on Available-for-Sale Investments) [Abstract]	'	'	'	'
Available-for-sale Securities, Gross Realized Gains	$75	$55	$267	$175
Available-for-sale Securities, Gross Realized Losses	-6	-49	-33	-129
Available-for-sale Securities, Gross Realized Gain (Loss)	$69	$6	$234	$46

Investments_Realized_Net_Gains

Investments (Realized Net Gains (Losses) Related To Available-For-Sale Investments) (Detail) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Apr. 26, 2014	Apr. 27, 2013	Apr. 26, 2014	Apr. 27, 2013
Available-for-sale Securities, realized net gains	$69	$6	$234	$46
Publicly Traded Equity Securities	'	'	'	'
Available-for-sale Securities, realized net gains	55	-2	199	12
Fixed Income Securities	'	'	'	'
Available-for-sale Securities, realized net gains	$14	$8	$35	$34

Investments_AvailableForSale_I

Investments (Available-For-Sale Investments With Gross Unrealized Losses) (Detail) (USD $)	9 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Apr. 26, 2014	Jul. 27, 2013
Schedule of Investments [Line Items]	'	'
Available-for-sale Securities with Unrealized Losses Less than 12 Months, Fair Value	$7,814	$12,573
Gross Unrealized Losses, Less than 12 Months	-25	-70
Available-for-sale Securities with Unrealized Losses 12 Months or Longer, Fair Value	63	4
Gross Unrealized Losses, 12 Months or Longer	0	0
Available-for-sale Investments with Unrealized Losses, Fair Value	7,877	12,577
Total Gross Unrealized Losses	-25	-70
Publicly Traded Equity Securities	'	'
Schedule of Investments [Line Items]	'	'
Available-for-sale Securities with Unrealized Losses Less than 12 Months, Fair Value	117	278
Gross Unrealized Losses, Less than 12 Months	-7	-4
Available-for-sale Securities with Unrealized Losses 12 Months or Longer, Fair Value	0	0
Gross Unrealized Losses, 12 Months or Longer	0	0
Available-for-sale Investments with Unrealized Losses, Fair Value	117	278
Total Gross Unrealized Losses	-7	-4
Total Fixed Income Securities [Member]	'	'
Schedule of Investments [Line Items]	'	'
Available-for-sale Securities with Unrealized Losses Less than 12 Months, Fair Value	7,697	12,295
Gross Unrealized Losses, Less than 12 Months	-18	-66
Available-for-sale Securities with Unrealized Losses 12 Months or Longer, Fair Value	63	4
Gross Unrealized Losses, 12 Months or Longer	0	0
Available-for-sale Investments with Unrealized Losses, Fair Value	7,760	12,299
Total Gross Unrealized Losses	-18	-66
Total Fixed Income Securities [Member] | US Government Securities[Member]	'	'
Schedule of Investments [Line Items]	'	'
Available-for-sale Securities with Unrealized Losses Less than 12 Months, Fair Value	5,111	7,865
Gross Unrealized Losses, Less than 12 Months	-6	-13
Available-for-sale Securities with Unrealized Losses 12 Months or Longer, Fair Value	8	0
Gross Unrealized Losses, 12 Months or Longer	0	0
Available-for-sale Investments with Unrealized Losses, Fair Value	5,119	7,865
Total Gross Unrealized Losses	-6	-13
Total Fixed Income Securities [Member] | US Government Agencies Securities [Member]	'	'
Schedule of Investments [Line Items]	'	'
Available-for-sale Securities with Unrealized Losses Less than 12 Months, Fair Value	396	294
Gross Unrealized Losses, Less than 12 Months	-1	-1
Available-for-sale Securities with Unrealized Losses 12 Months or Longer, Fair Value	3	0
Gross Unrealized Losses, 12 Months or Longer	0	0
Available-for-sale Investments with Unrealized Losses, Fair Value	399	294
Total Gross Unrealized Losses	-1	-1
Total Fixed Income Securities [Member] | Non-US Government and Agency Securities [Member]	'	'
Schedule of Investments [Line Items]	'	'
Available-for-sale Securities with Unrealized Losses Less than 12 Months, Fair Value	378	432
Gross Unrealized Losses, Less than 12 Months	-1	-2
Available-for-sale Securities with Unrealized Losses 12 Months or Longer, Fair Value	0	0
Gross Unrealized Losses, 12 Months or Longer	0	0
Available-for-sale Investments with Unrealized Losses, Fair Value	378	432
Total Gross Unrealized Losses	-1	-2
Total Fixed Income Securities [Member] | Corporate Debt Securities [Member]	'	'
Schedule of Investments [Line Items]	'	'
Available-for-sale Securities with Unrealized Losses Less than 12 Months, Fair Value	1,654	3,704
Gross Unrealized Losses, Less than 12 Months	-10	-50
Available-for-sale Securities with Unrealized Losses 12 Months or Longer, Fair Value	52	4
Gross Unrealized Losses, 12 Months or Longer	0	0
Available-for-sale Investments with Unrealized Losses, Fair Value	1,706	3,708
Total Gross Unrealized Losses	-10	-50
Total Fixed Income Securities [Member] | U.S. agency mortgage-backed Securities	'	'
Schedule of Investments [Line Items]	'	'
Available-for-sale Securities with Unrealized Losses Less than 12 Months, Fair Value	158	'
Gross Unrealized Losses, Less than 12 Months	0	'
Available-for-sale Securities with Unrealized Losses 12 Months or Longer, Fair Value	0	'
Gross Unrealized Losses, 12 Months or Longer	0	'
Available-for-sale Investments with Unrealized Losses, Fair Value	158	'
Total Gross Unrealized Losses	$0	'

Investments_Maturities_Of_Fixe

Investments (Maturities Of Fixed Income Securities) (Detail) (USD $)	Apr. 26, 2014
In Millions, unless otherwise specified
Schedule of Investments [Line Items]	'
Fixed Income Securities, Amortized Cost	$42,171
Fixed Income Securities, Fair Value	42,269
Less than 1 year [Member]	'
Schedule of Investments [Line Items]	'
Fixed Income Securities, Amortized Cost	15,022
Fixed Income Securities, Fair Value	15,038
Fixed Income Securities Matures Between One And Two Years [Member]	'
Schedule of Investments [Line Items]	'
Fixed Income Securities, Amortized Cost	13,061
Fixed Income Securities, Fair Value	13,101
Fixed Income Securities Matures Between Two And Five Years [Member]	'
Schedule of Investments [Line Items]	'
Fixed Income Securities, Amortized Cost	13,380
Fixed Income Securities, Fair Value	13,415
Fixed Income Securities Matures Beyond Five Years [Member]	'
Schedule of Investments [Line Items]	'
Fixed Income Securities, Amortized Cost	708
Fixed Income Securities, Fair Value	$715

Investments_Additional_Informa

Investments - Additional Information (Detail) (USD $)	9 Months Ended			3 Months Ended		9 Months Ended
	Apr. 26, 2014	Apr. 27, 2013	Jul. 27, 2013	Apr. 26, 2014	Apr. 27, 2013	Apr. 26, 2014	Apr. 27, 2013
				Publicly Traded Equity Securities	Publicly Traded Equity Securities	Publicly Traded Equity Securities	Publicly Traded Equity Securities
Schedule of Available-for-sale Securities [Line Items]	'	'	'	'	'	'	'
Other than Temporary Impairment Losses recognized in earnings	'	'	'	$0	$0	$11,000,000	$0
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Credit Losses on Debt Securities Held	0	'	'	'	'	'	'
Average Balance Of Securities Lending	1,400,000,000	700,000,000	'	'	'	'	'
Minimum market value percentage of loaned securities, required collateral (Percentage)	102.00%	'	'	'	'	'	'
Secured lending transactions outstanding	$0	'	$0	'	'	'	'

Fair_Value_Assets_And_Liabilit

Fair Value (Assets And Liabilities Measured At Fair Value On A Recurring Basis) (Detail) (USD $)	Apr. 26, 2014	Jul. 27, 2013
In Millions, unless otherwise specified
Assets at Fair Value, Recurring	$48,851	$48,912
Cash Equivalents [Member] | Money Market Funds [Member]	'	'
Assets at Fair Value, Recurring	4,475	6,045
Available-for-sale Securities | US Government Securities[Member]	'	'
Assets at Fair Value, Recurring	31,703	27,823
Available-for-sale Securities | US Government Agencies Securities [Member]	'	'
Assets at Fair Value, Recurring	1,061	3,089
Available-for-sale Securities | Non-US Government and Agency Securities [Member]	'	'
Assets at Fair Value, Recurring	820	1,095
Available-for-sale Securities | Corporate Debt Securities [Member]	'	'
Assets at Fair Value, Recurring	8,115	7,881
Available-for-sale Securities | U.S. agency mortgage-backed Securities	'	'
Assets at Fair Value, Recurring	570	'
Available-for-sale Securities | Publicly Traded Equity Securities	'	'
Assets at Fair Value, Recurring	1,959	2,797
Derivative Assets [Member]	'	'
Assets at Fair Value, Recurring	148	182
Derivative Liabilities [Member]	'	'
Liabilities at Fair Value, Recurring	54	171
Fair Value, Inputs, Level 1 [Member]	'	'
Assets at Fair Value, Recurring	6,434	8,842
Fair Value, Inputs, Level 1 [Member] | Money Market Funds [Member]	'	'
Assets at Fair Value, Recurring	4,475	6,045
Fair Value, Inputs, Level 1 [Member] | Publicly Traded Equity Securities	'	'
Assets at Fair Value, Recurring	1,959	2,797
Fair Value, Inputs, Level 2 [Member]	'	'
Assets at Fair Value, Recurring	42,417	40,070
Fair Value, Inputs, Level 2 [Member] | US Government Securities[Member]	'	'
Assets at Fair Value, Recurring	31,703	27,823
Fair Value, Inputs, Level 2 [Member] | US Government Agencies Securities [Member]	'	'
Assets at Fair Value, Recurring	1,061	3,089
Fair Value, Inputs, Level 2 [Member] | Non-US Government and Agency Securities [Member]	'	'
Assets at Fair Value, Recurring	820	1,095
Fair Value, Inputs, Level 2 [Member] | Corporate Debt Securities [Member]	'	'
Assets at Fair Value, Recurring	8,115	7,881
Fair Value, Inputs, Level 2 [Member] | U.S. agency mortgage-backed Securities	'	'
Assets at Fair Value, Recurring	570	'
Fair Value, Inputs, Level 2 [Member] | Derivative Assets [Member]	'	'
Assets at Fair Value, Recurring	148	182
Fair Value, Inputs, Level 2 [Member] | Derivative Liabilities [Member]	'	'
Liabilities at Fair Value, Recurring	$54	$171

Fair_Value_Fair_Value_On_A_Non

Fair Value (Fair Value On A Nonrecurring Basis) (Detail) (Fair Value, Inputs, Level 3 [Member], USD $)	3 Months Ended	9 Months Ended
In Millions, unless otherwise specified	Apr. 27, 2013	Apr. 26, 2014	Apr. 27, 2013
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]	'	'	'
Gains (Losses) for the Period	$73	'	$55
Property Held For Sale [Member] | Net Carrying Value	'	'	'
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]	'	'	'
Assets Held For Sale	72	'	72
Property Held For Sale [Member] | Fair Value measurement Nonrecurring Basis Change In Unrealized Gain Loss Included In G&A [Member]	'	'	'
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]	'	'	'
Gains (Losses) for the Period	44	'	44
Investments In Privately Held Companies	'	'	'
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]	'	'	'
Investment in privately held companies	66	'	66
Investments In Privately Held Companies | Gains or Losses Included In Other Income (Loss), Net	'	'	'
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]	'	'	'
Gains (Losses) for the Period	-5	-10	-23
Assets No Longer Held At Period End [Member] | Fair Value measurement Nonrecurring Basis Change In Unrealized Gain Loss Included In G&A [Member]	'	'	'
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]	'	'	'
Gains (Losses) for the Period	$34	'	$34

Fair_Value_Additional_Informat

Fair Value - Additional Information (Detail) (USD $)	Apr. 26, 2014	Jul. 27, 2013	Apr. 27, 2013	Apr. 27, 2013	Apr. 26, 2014	Jul. 27, 2013	Apr. 27, 2013	Apr. 26, 2014	Apr. 27, 2013	Apr. 26, 2014	Jul. 27, 2013
			Fair Value, Inputs, Level 3 [Member]	Fair Value, Inputs, Level 3 [Member]	Fair Value, Inputs, Level 3 [Member]	Fair Value, Inputs, Level 3 [Member]	Fair Value, Inputs, Level 3 [Member]	Fair Value, Inputs, Level 3 [Member]	Fair Value, Inputs, Level 3 [Member]	Fair Value, Inputs, Level 2 [Member]	Fair Value, Inputs, Level 2 [Member]
							Investments In Privately Held Companies	Investments In Privately Held Companies	Investments In Privately Held Companies
							Fair Value Assets Measured On Nonrecurring Basis Change In Unrealized Gain Loss Included In Interest And Other Income Net [Member]	Fair Value Assets Measured On Nonrecurring Basis Change In Unrealized Gain Loss Included In Interest And Other Income Net [Member]	Fair Value Assets Measured On Nonrecurring Basis Change In Unrealized Gain Loss Included In Interest And Other Income Net [Member]
Other Fair Value Disclosures [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Gains (Losses) for the Period	'	'	($73,000,000)	($55,000,000)	'	'	$5,000,000	$10,000,000	$23,000,000	'	'
Carrying Value, Cost Method Investments	273,000,000	242,000,000	'	'	'	'	'	'	'	'	'
Loan Receivables, Financed Service Contracts And Others, Carrying Value	'	'	'	'	1,700,000,000	2,100,000,000	'	'	'	'	'
Long-term Debt, Fair Value	'	'	'	'	'	'	'	'	'	22,400,000,000	17,600,000,000
Long-term Debt, carrying value	$20,884,000,000	$16,201,000,000	'	'	'	'	'	'	'	$20,900,000,000	$16,200,000,000

Borrowings_ShortTerm_Debt_Deta

Borrowings (Short-Term Debt) (Detail) (USD $)	Apr. 26, 2014	Jul. 27, 2013
In Millions, unless otherwise specified
Short-term Debt [Line Items]	'	'
Debt, Current	$508	$3,283
Senior Notes	'	'
Short-term Debt [Line Items]	'	'
Debt, Current	500	3,273
Effective Interest Rate (Percentage)	3.11%	0.63%
Other notes and borrowings	'	'
Short-term Debt [Line Items]	'	'
Debt, Current	$8	$10
Effective Interest Rate (Percentage)	2.60%	2.52%

Borrowings_Schedule_Of_LongTer

Borrowings (Schedule Of Long-Term Debt) (Detail) (USD $)	9 Months Ended		12 Months Ended
In Millions, unless otherwise specified	Apr. 26, 2014		Jul. 27, 2013
Debt Instrument	'		'
Long-term debt including the current portion	$20,756		$16,021
Unaccreted discount	-65		-65
Hedge accounting fair value adjustments	193		245
Long-term debt (current & noncurrent)	20,884		16,201
Long-term debt (current portion)	500		3,273
Long-term debt (noncurrent portion)	20,384		12,928
Floating-Rate Notes 3-month Libor plus 0.25% Due March 2014	'		'
Debt Instrument	'		'
Debt Instrument, Maturity Date	14-Mar-14		'
Senior Notes	0		1,250
Effective Interest Rate (Percentage)	0.00%		0.62%
Three-month LIBOR plus spread (Percentage)	'		0.25%
Floating-Rate Notes 3-month Libor Plus 0.05% Due September 2015	'		'
Debt Instrument	'		'
Debt Instrument, Maturity Date	3-Sep-15		'
Senior Notes	850	[1]	0
Effective Interest Rate (Percentage)	0.38%		0.00%
Three-month LIBOR plus spread (Percentage)	0.05%		'
Floating-Rate Notes 3-month Libor Plus 0.28% Due March 2017	'		'
Debt Instrument	'		'
Debt Instrument, Maturity Date	3-Mar-17		'
Senior Notes	1,000	[1]	0
Effective Interest Rate (Percentage)	0.58%		0.00%
Three-month LIBOR plus spread (Percentage)	0.28%		'
Floating-Rate Notes 3-month Libor Plus 0.50% Due March 2019	'		'
Debt Instrument	'		'
Debt Instrument, Maturity Date	1-Mar-19		'
Senior Notes	500	[1]	0
Effective Interest Rate (Percentage)	0.79%		0.00%
Three-month LIBOR plus spread (Percentage)	0.50%		'
Fixed-Rate Notes, 1.625%, Due March 2014	'		'
Debt Instrument	'		'
Debt Instrument, Maturity Date	14-Mar-14		'
Senior Notes	0		2,000
Effective Interest Rate (Percentage)	'		0.64%
Debt Instrument Stated Interest Rate (Percentage)	'		1.63%
Fixed-Rate Notes, 2.90%, Due November 2014	'		'
Debt Instrument	'		'
Debt Instrument, Maturity Date	17-Nov-14		'
Senior Notes	500		500
Effective Interest Rate (Percentage)	3.11%		3.11%
Debt Instrument Stated Interest Rate (Percentage)	2.90%		2.90%
Fixed-Rate Notes, 5.5%, Due February 2016	'		'
Debt Instrument	'		'
Debt Instrument, Maturity Date	22-Feb-16		'
Senior Notes	3,000		3,000
Effective Interest Rate (Percentage)	3.05%		3.07%
Debt Instrument Stated Interest Rate (Percentage)	5.50%		5.50%
Fixed-Rate Notes, 1.1%, Due March 2017	'		'
Debt Instrument	'		'
Debt Instrument, Maturity Date	3-Mar-17		'
Senior Notes	2,400	[1]	0
Effective Interest Rate (Percentage)	0.56%		0.00%
Debt Instrument Stated Interest Rate (Percentage)	1.10%		'
Fixed-Rate Notes, 3.15%, Due March 2017	'		'
Debt Instrument	'		'
Debt Instrument, Maturity Date	14-Mar-17		'
Senior Notes	750		750
Effective Interest Rate (Percentage)	0.80%		0.84%
Debt Instrument Stated Interest Rate (Percentage)	3.15%		3.15%
Fixed-Rate Notes, 4.95%, Due February 2019	'		'
Debt Instrument	'		'
Debt Instrument, Maturity Date	15-Feb-19		'
Senior Notes	2,000		2,000
Effective Interest Rate (Percentage)	4.69%		4.70%
Debt Instrument Stated Interest Rate (Percentage)	4.95%		4.95%
Fixed-Rate Notes, 2.125%, Due March 2019	'		'
Debt Instrument	'		'
Debt Instrument, Maturity Date	1-Mar-19		'
Senior Notes	1,750	[1]	0
Effective Interest Rate (Percentage)	0.77%		0.00%
Debt Instrument Stated Interest Rate (Percentage)	2.13%		'
Fixed-Rate Notes, 4.45%, Due January 2020	'		'
Debt Instrument	'		'
Debt Instrument, Maturity Date	15-Jan-20		'
Senior Notes	2,500		2,500
Effective Interest Rate (Percentage)	2.98%		4.15%
Debt Instrument Stated Interest Rate (Percentage)	4.45%		4.45%
Fixed-Rate Notes, 2.90%, Due March 2021	'		'
Debt Instrument	'		'
Debt Instrument, Maturity Date	4-Mar-21		'
Senior Notes	500	[1]	0
Effective Interest Rate (Percentage)	0.93%		0.00%
Debt Instrument Stated Interest Rate (Percentage)	2.90%		'
FIxed-Rate Notes 3.625%, Due March 2024	'		'
Debt Instrument	'		'
Debt Instrument, Maturity Date	3-Mar-24		'
Senior Notes	1,000	[1]	0
Effective Interest Rate (Percentage)	1.05%		0.00%
Debt Instrument Stated Interest Rate (Percentage)	3.63%		'
Fixed-Rate Notes, 5.90%, Due February 2039	'		'
Debt Instrument	'		'
Debt Instrument, Maturity Date	15-Feb-39		'
Senior Notes	2,000		2,000
Effective Interest Rate (Percentage)	6.11%		6.11%
Debt Instrument Stated Interest Rate (Percentage)	5.90%		5.90%
Fixed-Rate Notes, 5.50%, Due January 2040	'		'
Debt Instrument	'		'
Debt Instrument, Maturity Date	15-Jan-40		'
Senior Notes	2,000		2,000
Effective Interest Rate (Percentage)	5.67%		5.67%
Debt Instrument Stated Interest Rate (Percentage)	5.50%		5.50%
Other Long-Term Debt	'		'
Debt Instrument	'		'
Other Long-term Debt	$6		$21
Effective Interest Rate (Percentage)	2.52%		1.46%
[1]	In March 2014, the Company issued senior notes for an aggregate principal amount of $8.0 billion.

Borrowings_Schedule_Of_Princip

Borrowings (Schedule Of Principal Payments For Long-Term Debt ) (Detail) (USD $)	Apr. 26, 2014	Jul. 27, 2013
In Millions, unless otherwise specified
Debt Disclosure [Abstract]	'	'
2014 (remaining three months)	$0	'
2015	502	'
2016	3,853	'
2017	4,151	'
2018	0	'
Thereafter	12,250	'
Long-term debt including the current portion	$20,756	$16,021

Borrowings_Additional_Informat

Borrowings - Additional Information (Detail) (USD $)	Apr. 26, 2014	Jul. 27, 2013	Apr. 26, 2014	Jul. 27, 2013	Apr. 26, 2014	Jul. 27, 2013	Apr. 26, 2014	Apr. 26, 2014	Apr. 26, 2014	Apr. 26, 2014
			Designated as Hedging Instrument	Designated as Hedging Instrument	Commercial Paper	Commercial Paper	Commercial Paper	Senior Notes	Senior Notes Issued in March 2014	Unsecured revolving credit facility
			Interest Rate Derivatives	Interest Rate Derivatives			Maximum
Debt Disclosure	'	'	'	'	'	'	'	'	'	'
ST debt financing program- Commercial paper notes (up to limit)	'	'	'	'	$0	$0	$3,000,000,000	'	'	'
Repayments of Commercial Paper	'	'	'	'	1,000,000,000	'	'	'	'	'
Repayments of Short-term Debt	'	'	'	'	'	'	'	3,300,000,000	'	'
Senior Notes	'	'	'	'	'	'	'	'	8,000,000,000	'
Notional amount of derivatives	14,673,000,000	12,992,000,000	10,400,000,000	5,250,000,000	'	'	'	'	'	'
Unsecured Revolving Credit Facility	'	'	'	'	'	'	'	'	'	3,000,000,000
Unsecured revolving credit facility maturity date	'	'	'	'	'	'	'	'	'	17-Feb-17
Unsecured revolving credit facility- interest rate description Facility, Interest Rate Description	'	'	'	'	'	'	'	'	'	'either (i) the higher of the Federal Funds rate plus 0.50%, Bank of America's bprime rateb as announced from time to time, or one-month LIBOR plus 1.00%, or (ii) LIBOR plus a margin that is based on the Company's senior debt credit ratings
Interest Rate- Federal Funds rate plus 0.5%	'	'	'	'	'	'	'	'	'	0.50%
Interest Rate- One-month LIBOR plus 1.00%	'	'	'	'	'	'	'	'	'	1.00%
Line of Credit Facility, Amount Outstanding	'	'	'	'	'	'	'	'	'	0
Available increases under the credit facility	'	'	'	'	'	'	'	'	'	$2,000,000,000
Additional unsecured revolving credit facility maturity date	'	'	'	'	'	'	'	'	'	17-Feb-19

Derivative_Instruments_Derivat

Derivative Instruments (Derivatives Recorded At Fair Value) (Details) (USD $)	Apr. 26, 2014	Jul. 27, 2013
In Millions, unless otherwise specified
Derivative [Line Items]	'	'
Derivative Asset	$148	$182
Derivative liabilities	54	171
Designated as Hedging Instrument	'	'
Derivative [Line Items]	'	'
Derivative Asset	143	180
Derivative liabilities	50	164
Designated as Hedging Instrument | Foreign Currency Derivatives | Other Current Assets	'	'
Derivative [Line Items]	'	'
Derivative Asset	17	33
Designated as Hedging Instrument | Foreign Currency Derivatives | Other Current Liabilities	'	'
Derivative [Line Items]	'	'
Derivative liabilities	3	7
Designated as Hedging Instrument | Interest Rate Derivatives | Other Noncurrent Assets	'	'
Derivative [Line Items]	'	'
Derivative Asset	126	147
Designated as Hedging Instrument | Interest Rate Derivatives | Other Noncurrent Liabilities	'	'
Derivative [Line Items]	'	'
Derivative liabilities	8	2
Designated as Hedging Instrument | Equity Derivatives | Other Current Assets	'	'
Derivative [Line Items]	'	'
Derivative Asset	0	0
Designated as Hedging Instrument | Equity Derivatives | Other Current Liabilities	'	'
Derivative [Line Items]	'	'
Derivative liabilities	39	155
Derivatives Not Designated As Hedging Instruments	'	'
Derivative [Line Items]	'	'
Derivative Asset	5	2
Derivative liabilities	4	7
Derivatives Not Designated As Hedging Instruments | Foreign Currency Derivatives | Other Current Assets	'	'
Derivative [Line Items]	'	'
Derivative Asset	5	2
Derivatives Not Designated As Hedging Instruments | Foreign Currency Derivatives | Other Current Liabilities	'	'
Derivative [Line Items]	'	'
Derivative liabilities	4	7
Derivatives Not Designated As Hedging Instruments | Equity Derivatives | Other Noncurrent Assets	'	'
Derivative [Line Items]	'	'
Derivative Asset	0	0
Derivatives Not Designated As Hedging Instruments | Equity Derivatives | Other Noncurrent Liabilities	'	'
Derivative [Line Items]	'	'
Derivative liabilities	$0	$0

Derivative_Instruments_Effect_

Derivative Instruments (Effect Of Derivative Instruments Designated As Cash Flow Hedges And Net Investment Hedging Instruments On Other Comprehensive And Consolidated Statements Of Operations Summary) (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Apr. 26, 2014	Apr. 27, 2013	Apr. 26, 2014	Apr. 27, 2013
Cash Flow Hedging	'	'	'	'
Derivative [Line Items]	'	'	'	'
Gains (losses) recognized in OCI on derivatives (effective portion)	$13	($11)	$47	$58
Gains (losses) reclassified from AOCI into income (effective portion)	16	4	44	7
Cash Flow Hedging | Foreign Currency Derivatives	'	'	'	'
Derivative [Line Items]	'	'	'	'
Gains (losses) recognized in OCI on derivatives (effective portion)	13	-11	47	58
Cash Flow Hedging | Foreign Currency Derivatives | Operating Expenses	'	'	'	'
Derivative [Line Items]	'	'	'	'
Gains (losses) reclassified from AOCI into income (effective portion)	13	3	36	5
Cash Flow Hedging | Foreign Currency Derivatives | Cost Of Sales-Service	'	'	'	'
Derivative [Line Items]	'	'	'	'
Gains (losses) reclassified from AOCI into income (effective portion)	3	1	8	2
Net Investment Hedging	'	'	'	'
Derivative [Line Items]	'	'	'	'
Gains (losses) recognized in OCI on derivatives (effective portion)	-10	20	-13	-4
Net Investment Hedging | Other income (loss), net	'	'	'	'
Derivative [Line Items]	'	'	'	'
Gains (losses) reclassified from AOCI into income (effective portion)	$0	$0	$0	$0

Derivative_Instruments_Effect_1

Derivative Instruments (Effect Of Derivative Instruments Designated As Fair Value Hedges And Underlying Hedged Items On Consolidated Statements Of Operations Summary) (Details) (Derivatives Designated As Fair Value Hedging Instruments, USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Apr. 26, 2014	Apr. 27, 2013	Apr. 26, 2014	Apr. 27, 2013
Hedge Underlying Gain Loss [Line Items]	'	'	'	'
Gains (losses) on derivative instruments	$0	($56)	($82)	($127)
Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge	0	56	81	127
Equity Derivatives | Other income (loss), net	'	'	'	'
Hedge Underlying Gain Loss [Line Items]	'	'	'	'
Gains (losses) on derivative instruments	-8	-45	-55	-87
Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge	8	45	55	87
Interest Rate Derivatives | Interest Expense	'	'	'	'
Hedge Underlying Gain Loss [Line Items]	'	'	'	'
Gains (losses) on derivative instruments	8	-11	-27	-40
Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge	($8)	$11	$26	$40

Derivative_Instruments_Effect_2

Derivative Instruments (Effect Of Derivative Instruments Not Designated As Hedges On Consolidated Statement Of Operations Summary) (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Apr. 26, 2014	Apr. 27, 2013	Apr. 26, 2014	Apr. 27, 2013
Derivative [Line Items]	'	'	'	'
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	$49	($84)	$82	($27)
Foreign Currency Derivatives | Other income (loss), net	'	'	'	'
Derivative [Line Items]	'	'	'	'
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	36	-90	16	-78
Total Return Swap Deferred Compensation [Member] | Operating Expenses	'	'	'	'
Derivative [Line Items]	'	'	'	'
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	4	12	33	45
Equity Derivatives | Other income (loss), net	'	'	'	'
Derivative [Line Items]	'	'	'	'
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	$9	($6)	$33	$6

Derivative_Instruments_Schedul

Derivative Instruments (Schedule Of Notional Amounts Of Derivatives Outstanding) (Details) (USD $)	Apr. 26, 2014	Jul. 27, 2013
In Millions, unless otherwise specified
Derivative [Line Items]	'	'
Notional amount of derivatives	$14,673	$12,992
Designated as Hedging Instrument | Foreign Currency Derivatives	'	'
Derivative [Line Items]	'	'
Notional amount of derivatives	432	1,885
Designated as Hedging Instrument | Interest Rate Derivatives	'	'
Derivative [Line Items]	'	'
Notional amount of derivatives	10,400	5,250
Designated as Hedging Instrument | Net Investment Hedging	'	'
Derivative [Line Items]	'	'
Notional amount of derivatives	328	662
Designated as Hedging Instrument | Equity [Member]	'	'
Derivative [Line Items]	'	'
Notional amount of derivatives	238	1,098
Derivatives Not Designated As Hedging Instruments | Foreign Currency Derivatives	'	'
Derivative [Line Items]	'	'
Notional amount of derivatives	2,864	3,739
Derivatives Not Designated As Hedging Instruments | Total Return Swap [Member]	'	'
Derivative [Line Items]	'	'
Notional amount of derivatives	$411	$358

Derivative_Instruments_Derivat1

Derivative Instruments Derivative Instruments (Derivatives Offset in Balance Sheet) (Details) (USD $)	Apr. 26, 2014	Jul. 27, 2013
In Millions, unless otherwise specified
Derivative Asset, Fair Value, Amount Not Offset Against Collateral [Abstract]	'	'
Derivative Asset	$148	$182
Gross Amounts Offset in Consolidated Balance Sheets	0	0
Net Amount Presented on Consolidated Balance Sheets	148	182
Gross Derivative Amounts with Legal Rights to Offset	-36	-120
Cash Collateral Received	-5	0
Net Amount	107	62
Derivative Liability, Gross Amount	54	171
Gross Amounts Offset in Consolidated Balance Sheets	0	0
Net Amount Presented on Consolidated Balance Sheets	54	171
Gross Derivative Amounts with Legal Rights to Offset	-36	-120
Derivative, Collateral, Right to Reclaim Cash	-16	0
Net Amount	$2	$51

Derivative_Instruments_Additio

Derivative Instruments (Additional Information) (Details) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Apr. 26, 2014	Jul. 27, 2013
Derivative [Line Items]	'	'
Net derivative gains to be reclassified from AOCI into earnings in next twelve months	$22	'
Derivative Asset, Fair Value	148	182
Fixed Income Securities	'	'
Derivative [Line Items]	'	'
Number of Interest Rate Derivatives Held	0	0
Senior Notes	'	'
Derivative [Line Items]	'	'
Description of Interest Rate Derivative Activities	'In fiscal 2014 and 2013, the Company entered into interest rate swaps designated as fair value hedges related to fixed-rate senior notes that were issued in February 2009 and November 2009 and are due in 2019 and 2020, respectively. In the previous periods, the Company entered into interest rate swaps designated as fair value hedges related to fixed-rate senior notes that were issued in 2006 and 2011 and are due in 2014, 2016, and 2017.	'
Cash Flow Hedging | Foreign Currency Derivatives	'	'
Derivative [Line Items]	'	'
Derivative, Term of Contract	'18 months	'
Net Investment Hedging	'	'
Derivative [Line Items]	'	'
Derivative, Term of Contract	'6 months	'
Right to request collateral subject to specified credit rating and in net liability position [Member]	'	'
Derivative [Line Items]	'	'
Derivative Asset, Fair Value	$67	$88

Commitments_And_Contingencies_1

Commitments And Contingencies (Schedule Of Future Annual Minimum Lease Payments Under All Noncancelable Operating Leases) (Details) (USD $)	Apr. 26, 2014
In Millions, unless otherwise specified
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]	'
2014 (remaining three months)	$103
2015	332
2016	227
2017	157
2018	121
Thereafter	243
Total	$1,183

Commitments_And_Contingencies_2

Commitments And Contingencies Compensation Expenses (Details) (Acquisitions [Member], USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Apr. 26, 2014	Apr. 27, 2013	Apr. 26, 2014	Apr. 27, 2013
Acquisitions [Member]	'	'	'	'
Compensation expenses [Line Items]	'	'	'	'
Compensation expense related to acquisitions	$95	$44	$505	$79

Commitments_And_Contingencies_3

Commitments And Contingencies (Schedule Of Product Warranty Liability) (Details) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Apr. 26, 2014	Apr. 27, 2013
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]	'	'
Balance at beginning of fiscal year	$402	$373
Provision for warranties issued	532	480
Payments	-504	-462
Balance at end of fiscal year	$430	$391

Commitments_And_Contingencies_4

Commitments And Contingencies (Additional Information) (Details) (USD $)

3 Months Ended

9 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

57 Months Ended

3 Months Ended

9 Months Ended

3 Months Ended

Apr. 26, 2014

Apr. 27, 2013

Apr. 26, 2014

Apr. 27, 2013

Jul. 27, 2013

Apr. 26, 2014

Apr. 26, 2014

Apr. 26, 2014

Apr. 26, 2014

Oct. 26, 2013

Apr. 28, 2012

Apr. 26, 2014

Apr. 26, 2014

Apr. 26, 2014

Jul. 27, 2013

Apr. 26, 2014

Apr. 27, 2013

Apr. 26, 2014

Apr. 27, 2013

Apr. 26, 2014

Apr. 26, 2014

Oct. 26, 2013

Apr. 26, 2014

Jan. 25, 2014

Apr. 27, 2013

Jan. 25, 2014

Apr. 27, 2013

Minimum

Maximum

Cash compensation and contingent consideration [Member]

Insieme Networks Inc

Insieme Networks Inc

Insieme Networks Inc

Insieme Networks Inc

Insieme Networks Inc

Investments In Privately Held Companies

Investments In Privately Held Companies

VCE

VCE

VCE

VCE

VCE

Supplier component remediation liability [Member]

Supplier component remediation liability [Member]

Russia and the Commonwealth of Independent States [Member]

XpertUniverse

XpertUniverse

XpertUniverse

XpertUniverse

Maximum

Including compensation that has been expensed through current reporting period end

Fraud by concealment claims

Fraud by concealment claims

Maximum

Maximum

Maximum

Patents infringement

Patents infringement

Site Contingency [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Inventory purchase commitments

$4,038,000,000

'

$4,038,000,000

'

$4,033,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Recorded liabilities related to inventory purchase commitments

156,000,000

'

156,000,000

'

172,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Commitments and contingencies

'

'

'

'

'

'

'

645,000,000

'

'

'

'

856,000,000

276,000,000

263,000,000

'

'

'

'

'

702,000,000

63,000,000

'

'

'

'

'

Initial investment in Insieme

'

'

'

'

'

'

'

'

'

'

100,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Product cost of sales

3,595,000,000

3,782,000,000

11,665,000,000

11,387,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

655,000,000

'

'

'

'

'

'

Ownership percentage of Insieme

'

'

'

'

'

'

'

'

'

83.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Compensation expense related to acquisitions

'

'

'

'

'

'

'

'

52,000,000

'

'

363,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Cumulative investment in entity

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

679,000,000

'

679,000,000

'

679,000,000

'

'

'

'

'

'

'

Ownership percentage in entity (in percentage)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

35.00%

'

35.00%

'

35.00%

'

'

'

'

'

'

'

Investments for the period, equity method

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

147,000,000

'

'

'

'

'

'

'

'

'

Company's share of VCE's losses (in percentage)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

36.80%

36.80%

36.80%

36.80%

'

'

'

'

'

'

'

'

Cumulative lossess - VCE

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

52,000,000

49,000,000

163,000,000

135,000,000

584,000,000

'

'

'

'

'

'

'

VCE-Carrying Value

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

95,000,000

'

95,000,000

'

95,000,000

'

'

'

'

'

'

'

Warranty Period for Products, low range (in days)

'

'

'

'

'

'90 days

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Warranty Period For Products, high range (in years)

'

'

'

'

'

'

'5 years

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Brazilian authority claim of import tax evasion by importer, tax portion

389,000,000

'

389,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Brazilian authority claim of import tax evasion by importer, interest portion

1,300,000,000

'

1,300,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Brazilian authority claim of import tax evasion by importer, penalties portion

1,700,000,000

'

1,700,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Loss Contingency, Damages Awarded, Value

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

70,000,000

35,000

35,000

Loss Contingency, Damages Award Vacated, Value

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

($70,000,000)

'

'

'

Percentage of Company's revenue (Percentage)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2.00%

'

'

'

'

Shareholders_Equity_Stock_Repu

Shareholders' Equity (Stock Repurchase Program) (Detail) (USD $)	9 Months Ended
In Millions, except Per Share data, unless otherwise specified	Apr. 26, 2014
Stock Repurchase Program [Roll Forward]	'
Cumulative shares repurchased, beginning balance	3,868
Repurchase of common stock under the stock repurchase program (1)	359	[1]
Cumulative shares repurchased, ending balance	4,227
Cumulative weighted-average price per share, beginning balance	$20.40
Weighted Average Price Per Share Of Stock Repurchased In Period	$22.31
Cumulative weighted-average price per share, ending balance	$20.56
Cumulative amount repurchased, beginning balance	$78,906
Repurchase of common stock under the stock repurchase program, amount	8,025	[1]
Cumulative amount repurchased, ending balance	$86,931
[1]	Includes stock repurchases of $60 million, which were pending settlement as of AprilB 26, 2014. There were no stock repurchases pending settlement as of JulyB 27, 2013.

Shareholders_Equity_Additional

Shareholders' Equity - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
Share data in Millions, except Per Share data, unless otherwise specified	Apr. 26, 2014	Apr. 27, 2013	Apr. 26, 2014	Apr. 27, 2013	Apr. 26, 2014	Jul. 27, 2013
					Stock Repurchase Program	Stock Repurchase Program
Shareholders Equity [Line Items]	'	'	'	'	'	'
Cash dividends declared per common share (in dollars per share)	$0.19	$0.17	$0.53	$0.45	'	'
Payments of Dividends	'	'	$2,784,000,000	$2,392,000,000	'	'
Stock Repurchase Program, Authorized Amount	97,000,000,000	'	97,000,000,000	'	'	'
Stock Repurchase Program, Remaining Authorized Repurchase Amount	'	'	10,100,000,000	'	'	'
Accrued Liabilities, Current	'	'	'	'	60,000,000	0
Shares Withheld for Employee Tax Withholding Upon Vesting of RSU (in shares)	'	'	14	13	'	'
Payments Related to Tax Withholding for Share-based Compensation	'	'	$345,000,000	$249,000,000	'	'

Employee_Benefit_Plans_Summary

Employee Benefit Plans (Summary Of Share-Based Compensation Expense) (Detail) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Apr. 26, 2014	Apr. 27, 2013	Apr. 26, 2014	Apr. 27, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Total Share-based Compensation Expense	$353	$272	$1,009	$880
Income tax benefit for employee share-based compensation expense	86	73	246	232
Cost Of Sales Product	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Total Share-based Compensation Expense	12	10	34	31
Cost Of Sales-Service	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Total Share-based Compensation Expense	39	34	112	105
Share-based compensation expense in cost of sales	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Total Share-based Compensation Expense	51	44	146	136
Research And Development	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Total Share-based Compensation Expense	106	72	306	228
Sales And Marketing	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Total Share-based Compensation Expense	144	118	408	383
General And Administrative	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Total Share-based Compensation Expense	52	38	153	136
Restructuring And Other Charges	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Stock Issued During Period, Value, Share-based Compensation, Forfeited	0	0	-4	-3
Share-based compensation expense in operating expenses	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Total Share-based Compensation Expense	$302	$228	$863	$744

Employee_Benefit_Plans_Summary1

Employee Benefit Plans (Summary Of Share-Based Awards Available For Grant) (Detail)	9 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Apr. 26, 2014	Jul. 27, 2013
Share-based Awards Available for Grant [Roll Forward]	'	'
Beginning balance (in shares)	228	218
Restricted stock, stock units, and other share-based awards granted	-92	-102
Share-based awards canceled/forfeited/expired	29	115
Additional shares reserved	135	'
Shares withheld for taxes and not issued	2	'
Other	1	-3
Ending balance (in shares)	303	228

Employee_Benefit_Plans_Summary2

Employee Benefit Plans (Summary Of Restricted Stock And Stock Unit Activity) (Detail) (Restricted Stock, USD $)	9 Months Ended	12 Months Ended
In Millions, except Share data, unless otherwise specified	Apr. 26, 2014	Jul. 27, 2013
Restricted Stock	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]	'	'
Unvested balance at beginning period (in shares)	143,000,000	128,000,000
Granted and assumed	67,000,000	72,000,000
Vested	-43,000,000	-46,000,000
Canceled/forfeited	-10,000,000	-11,000,000
Unvested balance at ending period (in shares)	157,000,000	143,000,000
Beginning balance, weighted-average grant date fair value per share	$18.80	$19.46
Granted and assumed, weighed-average grant date fair value per share	$20.74	$18.52
Vested, weighted-average grant date fair value per share	$19.56	$20.17
Canceled/forfeited, weighted-average grant date fair value per share	$18.70	$18.91
Ending balance, weighted-average grant date fair value per share	$19.43	$18.80
Vested, aggregated fair market value	$998	$932

Employee_Benefit_Plans_Summary3

Employee Benefit Plans (Summary Of Stock Option Activity) (Detail) (USD $)	9 Months Ended	12 Months Ended
In Millions, except Per Share data, unless otherwise specified	Apr. 26, 2014	Jul. 27, 2013
Summary of Stock Option Activity	'	'
Beginning balance, Number Outstanding (in shares)	276	520
Assumed from acquisitions	6	10
Exercised	-45	-154
Canceled/forfeited/expired	-14	-100
Ending balance, Number Outstanding (in shares)	223	276
Weighted-average exercise price per share, beginning balance	$24.44	$22.68
Assumed from acquisitions, weighted-average exercise price per share	$3.69	$0.77
Exercised, weighted-average exercise price per share	$17.54	$18.51
Canceled/forfeited/expired, weighted-average exercise price per share	$27.41	$22.18
Weighted-average exercise price per share, ending balance	$25.09	$24.44

Employee_Stock_Plans_Summary_O

Employee Stock Plans (Summary Of Significant Ranges Of Outstanding And Exercisable Stock Options) (Detail) (USD $)	9 Months Ended
In Millions, except Per Share data, unless otherwise specified	Apr. 26, 2014	Jul. 27, 2013	Jul. 28, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Stock options outstanding (in shares)	223	276	520
Stock options outstanding, weighted-average remaining contractual life	'1 year 9 months 29 days	'	'
Stock options outstanding, weighted-average exercise price per share	$25.09	$24.44	$22.68
Stock options outstanding, aggregate intrinsic value	$348	'	'
Stock options exercisable (in shares)	218	271	'
Stock options exercisable, weighted-average exercise price per share	$25.57	$24.84	'
Stock options exercisable, aggregate intrinsic value	253	'	'
$0.01 - 15.00	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Range of exercise price of stock options outstanding and exercisable, minimum	$0.01	'	'
Range of exercise price of stock options outstanding and exercisable, maximum	$15	'	'
Stock options outstanding (in shares)	9	'	'
Stock options outstanding, weighted-average remaining contractual life	'5 years 2 months 12 days	'	'
Stock options outstanding, weighted-average exercise price per share	$4.29	'	'
Stock options outstanding, aggregate intrinsic value	180	'	'
Stock options exercisable (in shares)	4	'	'
Stock options exercisable, weighted-average exercise price per share	$6.11	'	'
Stock options exercisable, aggregate intrinsic value	85	'	'
$15.01 - 18.00	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Range of exercise price of stock options outstanding and exercisable, minimum	$15.01	'	'
Range of exercise price of stock options outstanding and exercisable, maximum	$18	'	'
Stock options outstanding (in shares)	25	'	'
Stock options outstanding, weighted-average remaining contractual life	'6 months	'	'
Stock options outstanding, weighted-average exercise price per share	$17.81	'	'
Stock options outstanding, aggregate intrinsic value	128	'	'
Stock options exercisable (in shares)	25	'	'
Stock options exercisable, weighted-average exercise price per share	$17.81	'	'
Stock options exercisable, aggregate intrinsic value	128	'	'
$18.01 - 20.00	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Range of exercise price of stock options outstanding and exercisable, minimum	$18.01	'	'
Range of exercise price of stock options outstanding and exercisable, maximum	$20	'	'
Stock options outstanding (in shares)	7	'	'
Stock options outstanding, weighted-average remaining contractual life	'7 months 10 days	'	'
Stock options outstanding, weighted-average exercise price per share	$19.22	'	'
Stock options outstanding, aggregate intrinsic value	25	'	'
Stock options exercisable (in shares)	7	'	'
Stock options exercisable, weighted-average exercise price per share	$19.22	'	'
Stock options exercisable, aggregate intrinsic value	25	'	'
$20.01 - 25.00	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Range of exercise price of stock options outstanding and exercisable, minimum	$20.01	'	'
Range of exercise price of stock options outstanding and exercisable, maximum	$25	'	'
Stock options outstanding (in shares)	76	'	'
Stock options outstanding, weighted-average remaining contractual life	'1 year 4 months 24 days	'	'
Stock options outstanding, weighted-average exercise price per share	$22.85	'	'
Stock options outstanding, aggregate intrinsic value	15	'	'
Stock options exercisable (in shares)	76	'	'
Stock options exercisable, weighted-average exercise price per share	$22.85	'	'
Stock options exercisable, aggregate intrinsic value	15	'	'
25.01 - 30.00	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Range of exercise price of stock options outstanding and exercisable, minimum	$25.01	'	'
Range of exercise price of stock options outstanding and exercisable, maximum	$30	'	'
Stock options outstanding (in shares)	28	'	'
Stock options outstanding, weighted-average remaining contractual life	'2 years 1 month 17 days	'	'
Stock options outstanding, weighted-average exercise price per share	$26.59	'	'
Stock options outstanding, aggregate intrinsic value	0	'	'
Stock options exercisable (in shares)	28	'	'
Stock options exercisable, weighted-average exercise price per share	$26.59	'	'
Stock options exercisable, aggregate intrinsic value	0	'	'
30.01 - 35.00	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Range of exercise price of stock options outstanding and exercisable, minimum	$30.01	'	'
Range of exercise price of stock options outstanding and exercisable, maximum	$35	'	'
Stock options outstanding (in shares)	78	'	'
Stock options outstanding, weighted-average remaining contractual life	'2 years 2 months 19 days	'	'
Stock options outstanding, weighted-average exercise price per share	$32.16	'	'
Stock options outstanding, aggregate intrinsic value	0	'	'
Stock options exercisable (in shares)	78	'	'
Stock options exercisable, weighted-average exercise price per share	$32.16	'	'
Stock options exercisable, aggregate intrinsic value	$0	'	'

Employee_Benefit_Plans_Summary4

Employee Benefit Plans (Summary Of Assumptions Used for Valuation Of Employee Share-Based Awards) (Detail) (USD $)	3 Months Ended		9 Months Ended
	Apr. 26, 2014	Apr. 27, 2013	Apr. 26, 2014	Apr. 27, 2013
Restricted Stock Units	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Granted (In shares)	6,000,000	4,000,000	53,000,000	56,000,000
Grant Date Fair Value Per Share, RSU	$19.95	$19.59	$20.50	$17.47
Expected dividend yield	3.10%	2.70%	3.10%	3.00%
Range of risk-free interest rates - minimum	0.00%	0.10%	0.00%	0.00%
Range of risk-free interest rates - maximum	1.70%	0.90%	1.70%	0.90%
Performance Restricted Stock Units	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Granted (In shares)	2,000,000	0	6,000,000	4,000,000
Grant Date Fair Value Per Share, RSU	$19.85	'	$21.73	$19.26
Expected dividend yield	3.50%	'	2.70%	2.90%
Range of risk-free interest rates - minimum	0.10%	'	0.00%	0.10%
Range of risk-free interest rates - maximum	1.70%	'	1.70%	0.70%
Range of Expected Volatility Rate, Minimum	'	'	17.40%	18.30%
Range of Expected Volatility Rate, Maximum	'	'	70.50%	64.60%

Employee_Benefit_Plans_Additio

Employee Benefit Plans - Additional Information (Detail) (USD $)

9 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

9 Months Ended

In Billions, except Share data, unless otherwise specified

Apr. 26, 2014

Apr. 25, 2014

Jul. 27, 2013

Apr. 26, 2014

Apr. 26, 2014

Apr. 26, 2014

Apr. 26, 2014

Apr. 26, 2014

Apr. 26, 2014

Apr. 26, 2014

Apr. 26, 2014

Apr. 26, 2014

Apr. 26, 2014

Apr. 26, 2014

Apr. 26, 2014

Apr. 26, 2014

Apr. 27, 2013

Apr. 26, 2014

Apr. 26, 2014

Apr. 26, 2014

Apr. 26, 2014

Apr. 26, 2014

Apr. 26, 2014

Apr. 26, 2014

stock_incentive_plan

2005 Plan

2005 Plan

2005 Plan

2005 Plan

2005 Plan

2005 Plan

2005 Plan

2005 Plan

1996 Plan

1996 Plan

1996 Plan

1996 Plan

Employee Stock Purchase Plan

Employee Stock Purchase Plan

Employee Stock Purchase Plan

Operating Goal [Member]

Operating Goal [Member]

TSR Goal [Member]

TSR Goal [Member]

Non-financial operating goals [Member]

Non-financial operating goals [Member]

Stock awards prior to November 12, 2009

Stock awards subsequent to November 12, 2009

Employee Stock Option

Employee Stock Option

Restricted Stock Units (RSUs)

Restricted Stock Units (RSUs)

Performance Restricted Stock Units

M

Minimum

Maximum

Balance available for issuance (shares) [Member]

Performance Restricted Stock Units

Performance Restricted Stock Units

Performance Restricted Stock Units

Performance Restricted Stock Units

Performance Restricted Stock Units

Performance Restricted Stock Units

Minimum

Maximum

Minimum

Maximum

Minimum

Maximum

Minimum

Maximum

Minimum

Maximum

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number Of Stock Incentive Plans

4

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Shares reserved for issuance (in shares)

'

'

'

694,000,000

'

'

'

'

'

'

'

'

'

'

'

471,400,000

'

38,000,000

'

'

'

'

'

'

Reduction in number of shares available for issuance after amendment approved by shareholders (ratio)

'

'

'

1.5

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized

'

'

'

'

'

'

'

'

'

'

'

2,500,000,000

2,500,000,000

'

'

'

'

'

'

'

'

'

'

'

Stock options and stock appreciation rights exercise price percentage of the fair market value of the underlying stock on the grant date (percentage)

'

'

'

100.00%

'

'

'

'

'

'

'

'

100.00%

'

'

'

'

'

'

'

'

'

'

'

Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period

'

'

'

'

'9 years

'10 years

'

'

'

'

'

'9 years

'

'

'

'

'

'

'

'

'

'

'

'

Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage

'

'

'

'

'

'

25.00%

20.00%

25.00%

20.00%

'

'

'

25.00%

20.00%

'

'

'

0.00%

150.00%

0.00%

150.00%

0.00%

100.00%

Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period

'

'

'

'

'

'

'36 months

'48 months

'

'

'3 years

'

'

'36 months

'48 months

'

'

'

'

'

'

'

'

'

Number of months in which stock options ratably exercise, nonstandard (in months)

'

'

'

'

'

'

'

'

'

'

'

'

60

'

'

'

'

'

'

'

'

'

'

'

ESPP- offering period description

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

' 24-month offering period, which consists of four consecutive 6-month purchase periods.B Employees may purchase a limited number of shares of the Companybs stock at a discount of up to 15% of the lesser of the market value at the beginning of the offering period or the end of each 6-month purchase period.

'

'

'

'

'

'

'

'

Share-based Compensation Arrangement by Share-based Payment Award, Discount from Market Price, Offering Date (in percentage)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

15.00%

'

'

'

'

'

'

'

'

Share-based Compensation Arrangement by Share-based Payment Award, Expiration Date

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

3-Jan-20

'

'

'

'

'

'

'

'

Shares issued under employee purchase plan (in shares)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

14,000,000

18,000,000

'

'

'

'

'

'

'

Unrecognized compensation cost related to unvested share-based awards

$2.70

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Expected period of recognition of compensation cost, years

'2 years 4 months 24 days

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Closing Stock Price

'

$23

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

In-the-money exercisable stock option (in shares)

47,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Stock options exercisable (in shares)

218,000,000

'

271,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Stock options exercisable, weighted-average exercise price per share

$25.57

'

$24.84

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Performance restricted stock units, based on operating performance goals

50.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Performance restricted stock units, based on TSR

50.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Comprehensive_Income_AOCI_Comp

Comprehensive Income (AOCI Components) (Details) (USD $)

Apr. 26, 2014

Jul. 27, 2013

Apr. 26, 2014

Apr. 27, 2013

Apr. 26, 2014

Apr. 27, 2013

Apr. 26, 2014

Apr. 27, 2013

Apr. 26, 2014

Apr. 27, 2013

Apr. 26, 2014

Apr. 27, 2013

Apr. 26, 2014

Apr. 27, 2013

In Millions, unless otherwise specified

Parent

Parent

Parent

Parent

Available-for-sale Securities

Available-for-sale Securities

Derivative

Derivative

Derivative

Derivative

Accumulated Translation Adjustment

Accumulated Translation Adjustment

Accumulated Other Comprehensive Income (Loss), Net of Tax

$697

$608

'

'

$608

$661

$379

$409

'

'

$8

($53)

$221

$305

OCI, Unrealized Holding Gain (Loss) on Securities Arising During Period, before Reclassification & Tax

'

'

'

'

'

'

339

22

'

'

'

'

'

'

Amount Reclassified Out of OCI, Before Tax

'

'

'

'

'

'

-234

-46

'

'

'

'

'

'

OCI, Unrealized Gain (Loss) on Derivatives Arising During Period, before Reclassification & Tax

'

'

'

'

'

'

'

'

'

'

46

59

'

'

Amount Reclassified Out of OCI, Before Tax

'

'

'

'

'

'

'

'

-16

-4

-44

-7

'

'

OCI, Foreign Currency Transaction and Translation Gain (Loss), before Reclassification and Tax

'

'

'

'

'

'

'

'

'

'

'

'

32

6

Amount Reclassified Out of OCI, Before Tax

'

'

'

'

'

'

'

'

'

'

'

'

0

0

Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent

'

'

'

'

417

87

'

'

'

'

'

'

'

'

Amount Reclassified Out of OCI, Before Tax

'

'

-85

-10

-278

-53

'

'

'

'

'

'

'

'

Tax benefit (expense)

'

'

'

'

-50

-6

-43

9

'

'

-2

-1

-5

-14

Accumulated Other Comprehensive Income (Loss), Net of Tax

$697

$608

$697

$689

$697

$689

$441

$394

$8

($2)

$8

($2)

$248

$297

Comprehensive_Income_Reclassif

Comprehensive Income (Reclassified Out of Other Comprehensive Income) (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Apr. 26, 2014	Apr. 27, 2013	Apr. 26, 2014	Apr. 27, 2013
Parent	'	'	'	'
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]	'	'	'	'
Amount Reclassified Out of OCI, Before Tax	$85	$10	$278	$53
Available-for-sale Securities	'	'	'	'
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]	'	'	'	'
Amount Reclassified Out of OCI, Before Tax	'	'	234	46
Available-for-sale Securities | Other income (loss), net	'	'	'	'
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]	'	'	'	'
Amount Reclassified Out of OCI, Before Tax	69	6	234	46
Derivative	'	'	'	'
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]	'	'	'	'
Amount Reclassified Out of OCI, Before Tax	16	4	44	7
Derivative | Operating Expenses	'	'	'	'
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]	'	'	'	'
Amount Reclassified Out of OCI, Before Tax	13	3	36	5
Derivative | Cost Of Sales-Service	'	'	'	'
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]	'	'	'	'
Amount Reclassified Out of OCI, Before Tax	$3	$1	$8	$2

Income_Taxes_Income_Before_Pro

Income Taxes (Income Before Provision For Income Taxes) (Detail) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Apr. 26, 2014	Apr. 27, 2013	Apr. 26, 2014	Apr. 27, 2013
Income Tax Disclosure [Abstract]	'	'	'	'
Income before provision for income taxes	$2,642	$2,945	$6,937	$8,356
Provision for income taxes	$461	$467	$1,331	$643
Effective tax rate	17.40%	15.90%	19.20%	7.70%

Income_Taxes_Additional_Inform

Income Taxes - Additional Information (Detail) (USD $)	Apr. 26, 2014
Income Tax Disclosure [Abstract]	'
Unrecognized Tax Benefits	$1,900,000,000
Unrecognized tax benefits that would impact tax rate	1,600,000,000
Unrecognized Tax Benefits Reasonably Possible Reduced in the next 12 Months	$300,000,000

Segment_Information_And_Major_2

Segment Information And Major Customers (Reportable Segments) (Detail) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Apr. 26, 2014	Apr. 27, 2013	Apr. 26, 2014	Apr. 27, 2013
Segment Reporting Information [Line Items]	'	'	'	'
Revenues	$11,545	$12,216	$34,785	$36,190
Segment Gross Margin	7,239	7,701	21,696	22,685
Total Gross Margin	7,006	7,511	20,364	22,093
Unallocated Corporate Items	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Total Gross Margin	-233	-190	-1,332	-592
Americas	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Revenues	6,689	7,127	20,465	21,286
Segment Gross Margin	4,196	4,460	12,823	13,341
EMEA	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Revenues	3,068	3,131	8,897	9,065
Segment Gross Margin	1,967	2,044	5,725	5,850
Asia Pacific Japan And China	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Revenues	1,788	1,958	5,423	5,839
Segment Gross Margin	$1,076	$1,197	$3,148	$3,494

Segment_Information_And_Major_3

Segment Information And Major Customers (Net Sales For Groups Of Similar Products And Services) (Detail) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Apr. 26, 2014	Apr. 27, 2013	Apr. 26, 2014	Apr. 27, 2013
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'	'	'
Revenues	$11,545	$12,216	$34,785	$36,190
Switching	'	'	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'	'	'
Revenues	3,381	3,601	10,406	10,962
NGN Routing	'	'	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'	'	'
Revenues	1,935	2,145	5,719	6,147
Service Provider Video	'	'	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'	'	'
Revenues	961	1,299	2,905	3,670
Collaboration	'	'	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'	'	'
Revenues	892	1,013	2,800	2,978
Data Center	'	'	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'	'	'
Revenues	662	515	1,868	1,480
Wireless	'	'	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'	'	'
Revenues	553	539	1,604	1,573
Security	'	'	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'	'	'
Revenues	361	327	1,119	1,002
Other Products	'	'	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'	'	'
Revenues	75	120	219	481
Product	'	'	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'	'	'
Revenues	8,820	9,559	26,640	28,293
Service	'	'	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'	'	'
Revenues	$2,725	$2,657	$8,145	$7,897

Segment_Information_And_Major_4

Segment Information And Major Customers (Property And Equipment, Net) (Detail) (USD $)	Apr. 26, 2014	Jul. 27, 2013
In Millions, unless otherwise specified
Segment Reporting Information [Line Items]	'	'
Property and equipment, net	$3,310	$3,322
United States	'	'
Segment Reporting Information [Line Items]	'	'
Property and equipment, net	2,718	2,780
International	'	'
Segment Reporting Information [Line Items]	'	'
Property and equipment, net	$592	$542

Segment_Information_And_Major_5

Segment Information And Major Customers - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
	Apr. 26, 2014	Apr. 27, 2013	Apr. 26, 2014	Apr. 27, 2013	Jul. 27, 2013
Segment Reporting Information [Line Items]	'	'	'	'	'
Number of geographic segments	'	'	'three	'	'
Total revenue	$11,545,000,000	$12,216,000,000	$34,785,000,000	$36,190,000,000	'
United States	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'
Total revenue	5,900,000,000	6,100,000,000	17,900,000,000	18,300,000,000	'
Cash, Cash Equivalents, and Investments	4,600,000,000	'	4,600,000,000	'	10,200,000,000
International	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'
Cash, Cash Equivalents, and Investments	$45,900,000,000	'	$45,900,000,000	'	$40,400,000,000

Net_Income_Per_Share_Calculati

Net Income Per Share (Calculation Of Basic And Diluted Net Income Per Share) (Detail) (USD $)	3 Months Ended		9 Months Ended
In Millions, except Per Share data, unless otherwise specified	Apr. 26, 2014	Apr. 27, 2013	Apr. 26, 2014	Apr. 27, 2013
Earnings Per Share [Abstract]	'	'	'	'
Net income	$2,181	$2,478	$5,606	$7,713
Weighted Average Shares, Basic (in shares)	5,143	5,329	5,271	5,316
Weighted Average Number Diluted Shares Outstanding Adjustment	37	58	40	45
Weighted-average shares-diluted (in shares)	5,180	5,387	5,311	5,361
Net income per share-basic	$0.42	$0.47	$1.06	$1.45
Earnings Per Share, Diluted	$0.42	$0.46	$1.06	$1.44
Antidilutive employee share-based awards, excluded	240	245	331	417