v2.4.1.9

Financing Receivables and Operating Leases (Schedule Of Financing Receivables) (Details) (USD $) In Millions, unless otherwise specified	Apr. 25, 2015	Jan. 24, 2015	Jul. 26, 2014	Apr. 26, 2014	Jan. 25, 2014	Jul. 27, 2013
Financing Receivables [Line Items]
Allowance for credit loss	$ (359)us-gaap_FinancingReceivableAllowanceForCreditLosses	$ (375)us-gaap_FinancingReceivableAllowanceForCreditLosses	$ (349)us-gaap_FinancingReceivableAllowanceForCreditLosses	$ (360)us-gaap_FinancingReceivableAllowanceForCreditLosses	$ (374)us-gaap_FinancingReceivableAllowanceForCreditLosses	$ (344)us-gaap_FinancingReceivableAllowanceForCreditLosses
Current	4,248us-gaap_NotesAndLoansReceivableNetCurrent		4,153us-gaap_NotesAndLoansReceivableNetCurrent
Deferred revenue:	14,181us-gaap_DeferredRevenue		14,142us-gaap_DeferredRevenue
Lease Receivables
Financing Receivables [Line Items]
Gross	3,276csco_FinancingReceivableGross / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_LeaseReceivablesMember		3,532csco_FinancingReceivableGross / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_LeaseReceivablesMember
Residual value	226us-gaap_CapitalLeasesNetInvestmentInSalesTypeLeasesUnguaranteedResidualValuesOfLeasedProperty / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_LeaseReceivablesMember		233us-gaap_CapitalLeasesNetInvestmentInSalesTypeLeasesUnguaranteedResidualValuesOfLeasedProperty / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_LeaseReceivablesMember
Unearned income	(190)us-gaap_LoansAndLeasesReceivableDeferredIncome / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_LeaseReceivablesMember		(238)us-gaap_LoansAndLeasesReceivableDeferredIncome / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_LeaseReceivablesMember
Allowance for credit loss	(242)us-gaap_FinancingReceivableAllowanceForCreditLosses / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_LeaseReceivablesMember		(233)us-gaap_FinancingReceivableAllowanceForCreditLosses / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_LeaseReceivablesMember
Current	1,424us-gaap_NotesAndLoansReceivableNetCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_LeaseReceivablesMember		1,476us-gaap_NotesAndLoansReceivableNetCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_LeaseReceivablesMember
Noncurrent	1,646us-gaap_NotesAndLoansReceivableGrossNoncurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_LeaseReceivablesMember		1,818us-gaap_NotesAndLoansReceivableGrossNoncurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_LeaseReceivablesMember
Total, net	3,070us-gaap_LoansAndLeasesReceivableNetReportedAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_LeaseReceivablesMember		3,294us-gaap_LoansAndLeasesReceivableNetReportedAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_LeaseReceivablesMember
Loan Receivables
Financing Receivables [Line Items]
Gross	1,720csco_FinancingReceivableGross / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember		1,683csco_FinancingReceivableGross / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember
Residual value	0us-gaap_CapitalLeasesNetInvestmentInSalesTypeLeasesUnguaranteedResidualValuesOfLeasedProperty / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember		0us-gaap_CapitalLeasesNetInvestmentInSalesTypeLeasesUnguaranteedResidualValuesOfLeasedProperty / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember
Unearned income	0us-gaap_LoansAndLeasesReceivableDeferredIncome / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember		0us-gaap_LoansAndLeasesReceivableDeferredIncome / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember
Allowance for credit loss	(80)us-gaap_FinancingReceivableAllowanceForCreditLosses / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember		(98)us-gaap_FinancingReceivableAllowanceForCreditLosses / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember
Current	820us-gaap_NotesAndLoansReceivableNetCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember		728us-gaap_NotesAndLoansReceivableNetCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember
Noncurrent	820us-gaap_NotesAndLoansReceivableGrossNoncurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember		857us-gaap_NotesAndLoansReceivableGrossNoncurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember
Total, net	1,640us-gaap_LoansAndLeasesReceivableNetReportedAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember		1,585us-gaap_LoansAndLeasesReceivableNetReportedAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember
Financed Service Contracts and Other
Financing Receivables [Line Items]
Gross	3,081csco_FinancingReceivableGross / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_FinancedServiceContractsAndOtherMember		3,210csco_FinancingReceivableGross / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_FinancedServiceContractsAndOtherMember
Residual value	0us-gaap_CapitalLeasesNetInvestmentInSalesTypeLeasesUnguaranteedResidualValuesOfLeasedProperty / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_FinancedServiceContractsAndOtherMember		0us-gaap_CapitalLeasesNetInvestmentInSalesTypeLeasesUnguaranteedResidualValuesOfLeasedProperty / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_FinancedServiceContractsAndOtherMember
Unearned income	0us-gaap_LoansAndLeasesReceivableDeferredIncome / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_FinancedServiceContractsAndOtherMember		0us-gaap_LoansAndLeasesReceivableDeferredIncome / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_FinancedServiceContractsAndOtherMember
Allowance for credit loss	(37)us-gaap_FinancingReceivableAllowanceForCreditLosses / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_FinancedServiceContractsAndOtherMember		(18)us-gaap_FinancingReceivableAllowanceForCreditLosses / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_FinancedServiceContractsAndOtherMember
Current	2,004us-gaap_NotesAndLoansReceivableNetCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_FinancedServiceContractsAndOtherMember		1,949us-gaap_NotesAndLoansReceivableNetCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_FinancedServiceContractsAndOtherMember
Noncurrent	1,040us-gaap_NotesAndLoansReceivableGrossNoncurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_FinancedServiceContractsAndOtherMember		1,243us-gaap_NotesAndLoansReceivableGrossNoncurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_FinancedServiceContractsAndOtherMember
Total, net	3,044us-gaap_LoansAndLeasesReceivableNetReportedAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_FinancedServiceContractsAndOtherMember		3,192us-gaap_LoansAndLeasesReceivableNetReportedAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_FinancedServiceContractsAndOtherMember
Total
Financing Receivables [Line Items]
Gross	8,077csco_FinancingReceivableGross / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_TotalFinancingReceivablesMember		8,425csco_FinancingReceivableGross / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_TotalFinancingReceivablesMember
Residual value	226us-gaap_CapitalLeasesNetInvestmentInSalesTypeLeasesUnguaranteedResidualValuesOfLeasedProperty / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_TotalFinancingReceivablesMember		233us-gaap_CapitalLeasesNetInvestmentInSalesTypeLeasesUnguaranteedResidualValuesOfLeasedProperty / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_TotalFinancingReceivablesMember
Unearned income	(190)us-gaap_LoansAndLeasesReceivableDeferredIncome / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_TotalFinancingReceivablesMember		(238)us-gaap_LoansAndLeasesReceivableDeferredIncome / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_TotalFinancingReceivablesMember
Allowance for credit loss	(359)us-gaap_FinancingReceivableAllowanceForCreditLosses / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_TotalFinancingReceivablesMember		(349)us-gaap_FinancingReceivableAllowanceForCreditLosses / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_TotalFinancingReceivablesMember
Current	4,248us-gaap_NotesAndLoansReceivableNetCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_TotalFinancingReceivablesMember		4,153us-gaap_NotesAndLoansReceivableNetCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_TotalFinancingReceivablesMember
Noncurrent	3,506us-gaap_NotesAndLoansReceivableGrossNoncurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_TotalFinancingReceivablesMember		3,918us-gaap_NotesAndLoansReceivableGrossNoncurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_TotalFinancingReceivablesMember
Total, net	$ 7,754us-gaap_LoansAndLeasesReceivableNetReportedAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_TotalFinancingReceivablesMember		$ 8,071us-gaap_LoansAndLeasesReceivableNetReportedAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_TotalFinancingReceivablesMember

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Financing Receivable Gross

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The estimate of the lease property's economic value at the end of the sales-type lease term excluding any amounts guaranteed by either the lessee or a third-party.

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Amount of deferred revenue as of balance sheet date. Deferred revenue represents collections of cash or other assets related to a revenue producing activity for which revenue has not yet been recognized. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP.

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A valuation allowance for financing receivables that are expected to be uncollectible.

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Amount of deferred interest and fee income, unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees, and premiums over or discounts from face amounts of acquired loans. Excludes amounts for loans and leases covered under loss sharing agreements.

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Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale.

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