v2.4.1.9

Fair Value (Additional Information) (Details) (USD $) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Apr. 25, 2015 | Apr. 26, 2014 | Apr. 25, 2015 | Apr. 26, 2014 | Jul. 26, 2014
Fair Value Measurements [Line Items] |  |  |  |  |
Carrying Value, Cost Method Investments | $ 312,000,000 us-gaap_FairValueEstimateNotPracticableCostMethodInvestments |  | $ 312,000,000 us-gaap_FairValueEstimateNotPracticableCostMethodInvestments |  | $ 269,000,000 us-gaap_FairValueEstimateNotPracticableCostMethodInvestments
Senior notes, carrying value | 20,500,000,000 us-gaap_LongTermDebt |  | 20,500,000,000 us-gaap_LongTermDebt |  | 20,901,000,000 us-gaap_LongTermDebt
Level 2 |  |  |  |  |
Fair Value Measurements [Line Items] |  |  |  |  |
Senior notes, fair value | 22,200,000,000 us-gaap_LongTermDebtFairValue / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member |  | 22,200,000,000 us-gaap_LongTermDebtFairValue / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member |  | 22,400,000,000 us-gaap_LongTermDebtFairValue / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member
Senior notes, carrying value | 20,500,000,000 us-gaap_LongTermDebt / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member |  | 20,500,000,000 us-gaap_LongTermDebt / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member |  | 20,900,000,000 us-gaap_LongTermDebt / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member
Level 3 |  |  |  |  |
Fair Value Measurements [Line Items] |  |  |  |  |
Gains (losses) for assets measured on a nonrecurring basis | 23,000,000 us-gaap_AssetImpairmentCharges / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member | 0 us-gaap_AssetImpairmentCharges / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member | 82,000,000 us-gaap_AssetImpairmentCharges / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member | 10,000,000 us-gaap_AssetImpairmentCharges / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member |
Long term loan receivables and financed service contracts and others carrying value | 1,900,000,000 csco_LoanReceivablesAndFinancedServiceContractsAndOthersCarryingValue / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member |  | 1,900,000,000 csco_LoanReceivablesAndFinancedServiceContractsAndOthersCarryingValue / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member |  | 2,100,000,000 csco_LoanReceivablesAndFinancedServiceContractsAndOthersCarryingValue / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member
Investments In Privately Held Companies [Member] | Remaining net carrying value, measured on a nonrecurring basis [Member] | Level 3 |  |  |  |  |
Fair Value Measurements [Line Items] |  |  |  |  |
Assets, Fair Value Disclosure, Nonrecurring | 4,000,000 us-gaap_AssetsFairValueDisclosureNonrecurring / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_FairValueByMeasurementFrequencyAxis = csco_RemainingnetcarryingvaluemeasuredonanonrecurringbasisMember / us-gaap_InvestmentTypeAxis = csco_InvestmentsInPrivatelyHeldCompaniesMember |  | 4,000,000 us-gaap_AssetsFairValueDisclosureNonrecurring / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_FairValueByMeasurementFrequencyAxis = csco_RemainingnetcarryingvaluemeasuredonanonrecurringbasisMember / us-gaap_InvestmentTypeAxis = csco_InvestmentsInPrivatelyHeldCompaniesMember |  |
Purchased Intangible Assets | Remaining net carrying value, measured on a nonrecurring basis [Member] | Level 3 |  |  |  |  |
Fair Value Measurements [Line Items] |  |  |  |  |
Assets, Fair Value Disclosure, Nonrecurring | 0 us-gaap_AssetsFairValueDisclosureNonrecurring / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_FairValueByMeasurementFrequencyAxis = csco_RemainingnetcarryingvaluemeasuredonanonrecurringbasisMember / us-gaap_MajorPropertyClassAxis = csco_PurchasedIntangibleAssetsMember |  | 0 us-gaap_AssetsFairValueDisclosureNonrecurring / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_FairValueByMeasurementFrequencyAxis = csco_RemainingnetcarryingvaluemeasuredonanonrecurringbasisMember / us-gaap_MajorPropertyClassAxis = csco_PurchasedIntangibleAssetsMember |  |
Assets Held-for-sale [Member] | Remaining net carrying value, measured on a nonrecurring basis [Member] | Level 3 |  |  |  |  |
Fair Value Measurements [Line Items] |  |  |  |  |
Assets, Fair Value Disclosure, Nonrecurring | $ 11,000,000 us-gaap_AssetsFairValueDisclosureNonrecurring / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_FairValueByMeasurementFrequencyAxis = csco_RemainingnetcarryingvaluemeasuredonanonrecurringbasisMember / us-gaap_MajorPropertyClassAxis = us-gaap_AssetsHeldForSaleMember |  | $ 11,000,000 us-gaap_AssetsFairValueDisclosureNonrecurring / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_FairValueByMeasurementFrequencyAxis = csco_RemainingnetcarryingvaluemeasuredonanonrecurringbasisMember / us-gaap_MajorPropertyClassAxis = us-gaap_AssetsHeldForSaleMember |  |

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- Definition Loan receivables and financed service contracts and others carrying value. + References No definition available. + Details
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- Definition Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=8077374&loc=d3e2420-110228 + Details
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- Definition This element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value on a nonrecurring basis by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. + References No definition available. + Details
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- Definition This item represents a financial instrument (as defined) for which it is not practicable to estimate fair value. Such disclosure may be for an individual financial instrument or a class of financial instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 325 -SubTopic 20 -Section 25 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=29638263&loc=d3e39828-111592 + Details
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- Definition Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 7 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 9 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20, 22 -Article 5 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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Balance Type: | credit
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- Definition The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. + References No definition available. + Details
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