v2.4.1.9

Employee Benefit Plans (Additional Information) (Details) (USD $) In Billions, except Share data, unless otherwise specified | 9 Months Ended |  |
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Apr. 25, 2015 stock_incentive_plan | Apr. 26, 2014 | Apr. 24, 2015 | Jul. 26, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Number of stock incentive plans | 4 csco_NumberOfStockIncentivePlans |  |  |
Total compensation cost related to unvested share-based awards | $ 2.4 us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized |  |  |
Expected period of recognition of compensation cost, years | 2 years 5 months 18 days |  |  |
Closing stock price |  |  | $ 28.82 csco_ClosingStockPrice |
In-the-money exercisable stock option shares | 41,000,000 csco_InMoneyExercisableStockOptionShares |  |  |
Number Exercisable, shares | 111,000,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber |  |  | 183,000,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
Weighted- Average Exercise Price per Share | $ 28.68 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice |  |  | $ 26.50 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
2005 Plan |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Shares reserved for issuance (in shares) | 694,000,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized / us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis = csco_TwoThousandFivePlanMember |  |  |
Exercise price as a percentage of market value (in percentage) | 100.00%csco_StockOptionsAndStockAppreciationRightsExercisePricePercentageOfFairMarketValueOfUnderlyingStockOnGrantDate / us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis = csco_TwoThousandFivePlanMember |  |  |
Description of PRSU granted contingent on performance metrics | 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. |  |  |
PRSU allocation between Financial operating goals and TSR | 50.00%csco_PRSUallocationbetweenFinancialoperatinggoalsandTSR / us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis = csco_TwoThousandFivePlanMember |  |  |
2005 Plan | Stock awards prior to November 12, 2009 | Maximum |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Expiration date for stock options and stock appreciation rights (in years) | 9 years |  |  |
2005 Plan | Stock awards subsequent to November 12, 2009 [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Reduction in shares available for issuance pursuant to November 12, 2009 amendment (ratio) | 1.5 csco_ReductionInNumberOfSharesAvailableForIssuanceAfterAmendmentApprovedByShareholders / us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis = csco_TwoThousandFivePlanMember / us-gaap_SubsidiarySaleOfStockAxis = csco_StockawardssubsequenttoNovember122009Member |  |  |
2005 Plan | Stock awards subsequent to November 12, 2009 [Member] | Maximum |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Expiration date for stock options and stock appreciation rights (in years) | 10 years |  |  |
2005 Plan | Employee Stock Option | Minimum |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Share-based Compensation Award Vesting Rights, Percentage | 20.00%us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage / us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis = csco_TwoThousandFivePlanMember / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_EmployeeStockOptionMember |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period | 48 months |  |  |
2005 Plan | Employee Stock Option | Maximum |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Share-based Compensation Award Vesting Rights, Percentage | 25.00%us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage / us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis = csco_TwoThousandFivePlanMember / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_EmployeeStockOptionMember |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period | 36 months |  |  |
2005 Plan | Time based stock award | Minimum |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Share-based Compensation Award Vesting Rights, Percentage | 20.00%us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage / us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis = csco_TwoThousandFivePlanMember / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_RestrictedStockUnitsRSUMember |  |  |
2005 Plan | Time based stock award | Maximum |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Share-based Compensation Award Vesting Rights, Percentage | 25.00%us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage / us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis = csco_TwoThousandFivePlanMember / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_RestrictedStockUnitsRSUMember |  |  |
2005 Plan | Performance base and Market base RSU [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period | 3 years |  |  |
2005 Plan | PRSU based on financial performance metrics | Minimum |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Share-based Compensation Award Vesting Rights, Percentage | 0.00%us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage / us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis = csco_TwoThousandFivePlanMember / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_PerformanceSharesMember |  |  |
2005 Plan | PRSU based on financial performance metrics | Maximum |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Share-based Compensation Award Vesting Rights, Percentage | 150.00%us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage / us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis = csco_TwoThousandFivePlanMember / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_PerformanceSharesMember |  |  |
2005 Plan | PRSU based on TSR [Member] | Minimum |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Share-based Compensation Award Vesting Rights, Percentage | 0.00%us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage / us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis = csco_TwoThousandFivePlanMember / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_SubsidiarySaleOfStockAxis = csco_PRSUbasedonTSRMember |  |  |
2005 Plan | PRSU based on TSR [Member] | Maximum |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Share-based Compensation Award Vesting Rights, Percentage | 150.00%us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage / us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis = csco_TwoThousandFivePlanMember / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_SubsidiarySaleOfStockAxis = csco_PRSUbasedonTSRMember |  |  |
2005 Plan | Performance based RSU based on Financial or nonFinancial operating goal [Member] | Minimum |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period | 6 months |  |  |
2005 Plan | Performance based RSU based on Financial or nonFinancial operating goal [Member] | Maximum |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period | 3 years |  |  |
2005 Plan | PRSU based on nonfinancial operating goals | Minimum |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Share-based Compensation Award Vesting Rights, Percentage | 0.00%us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage / us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis = csco_TwoThousandFivePlanMember / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_SubsidiarySaleOfStockAxis = csco_PRSUbasedonnonfinancialoperatinggoalsMember |  |  |
2005 Plan | PRSU based on nonfinancial operating goals | Maximum |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Share-based Compensation Award Vesting Rights, Percentage | 100.00%us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage / us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis = csco_TwoThousandFivePlanMember / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_SubsidiarySaleOfStockAxis = csco_PRSUbasedonnonfinancialoperatinggoalsMember |  |  |
1996 Plan |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Shares reserved for issuance (in shares) | 2,500,000,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized / us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis = csco_NineteenNinetySixPlanMember |  |  |
Termination of Stock Plan | Dec. 31, 2006 |  |  |
Exercise price as a percentage of market value (in percentage) | 100.00%csco_StockOptionsAndStockAppreciationRightsExercisePricePercentageOfFairMarketValueOfUnderlyingStockOnGrantDate / us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis = csco_NineteenNinetySixPlanMember |  |  |
Expiration date for stock options and stock appreciation rights (in years) | 9 years |  |  |
Percentage in which stock options and RSUs become exercisable for within one year from date of grant, minimum | 20.00%csco_ShareBasedCompensationArrangementByShareBasedPaymentAwardExercisablePercentageMinimum / us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis = csco_NineteenNinetySixPlanMember |  |  |
Percentage in which stock options and RSUs become exercisable for within one year from date of grant, maximum | 25.00%csco_ShareBasedCompensationArrangementByShareBasedPaymentAwardExercisablePercentageMaximum / us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis = csco_NineteenNinetySixPlanMember |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights | 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. |  |  |
Stock options ratable vesting schedule, nonstandard (in months) | 60 csco_Stockoptionsratablevestingschedulenonstandardinmonths / us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis = csco_NineteenNinetySixPlanMember |  |  |
1996 Plan | Employee Stock Option | Minimum |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period | 36 months |  |  |
1996 Plan | Employee Stock Option | Maximum |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period | 48 months |  |  |
Employee Stock Purchase Rights |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Shares reserved for issuance (in shares) | 621,000,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized / us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis = us-gaap_EmployeeStockMember |  |  |
Termination of Stock Plan | Jan. 03, 2020 |  |  |
ESPP-Offering Period Plan Description | 24-month offering period, which consists of four consecutive 6-month purchase periods |  |  |
ESPP-Discount rate | 15.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountFromMarketPriceOfferingDate / us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis = us-gaap_EmployeeStockMember |  |  |
Stock Issued During Period, Shares, Employee Stock Purchase Plans | 14,000,000 us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans / us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis = us-gaap_EmployeeStockMember | 14,000,000 us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans / us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis = us-gaap_EmployeeStockMember |  |
ESPP-shares available for issuance, shares | 161,000,000 csco_Sharesavailableforissuance / us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis = us-gaap_EmployeeStockMember |  |  |

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- Definition Share Based Compensation Arrangement By Share Based Payment Award Exercisable Percentage, one year from date of grant, Maximum + References No definition available. + Details
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- Definition Share based compensation arrangement by share based payment award exercisable percentage, one year from date of grant, minimum. + References No definition available. + Details
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- Definition Stock options and stock appreciation rights exercise price percentage of the fair market value of the underlying stock on the grant date + References No definition available. + Details
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- Definition Unrecognized cost of unvested share-based compensation awards. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Description of the plan, including the basis for determining contributions, the employee groups covered, and the nature and effect of significant matters affecting comparability of information for all periods presented. For leveraged ESOPs and pension reversion ESOPs, the description generally includes the basis for releasing shares and how dividends on allocated and unallocated shares are used. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 40 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6418621&loc=d3e17540-113929 + Details
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- Definition Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Description of award terms as to how many shares or portion of an award are no longer contingent on satisfaction of either a service condition, market condition or a performance condition, thereby giving the employee the legal right to convert the award to shares, to sell the shares, and be entitled to the cash proceeds of such sale. For example, vesting may be expressed as being 25 percent of the shares under option on each anniversary of the grant date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Percentage of vesting of share-based compensation awards. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Discount rate from fair value on offering date that participants pay for shares. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Date the equity-based award expires, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Number of shares issued during the period as a result of an employee stock purchase plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 + Details
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- Definition Describes the measurement, allocation or disclosure that departs from GAAP but is necessary to explain or measure amounts available for dividends on stock referenced to the unit. This element applies when the targeted stock stipulates explicitly that the performance of the unit will be measured on the basis that departs from GAAP. + References No definition available. + Details
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