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 | 4,248 us-gaap_NotesAndLoansReceivableNetCurrent |  | 4,153 us-gaap_NotesAndLoansReceivableNetCurrent |  |  |
Deferred revenue: | 14,181 us-gaap_DeferredRevenue |  | 14,142 us-gaap_DeferredRevenue |  |  |
Lease Receivables |  |  |  |  |  |
Financing Receivables [Line Items] |  |  |  |  |  |
Gross | 3,276 csco_FinancingReceivableGross / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_LeaseReceivablesMember |  | 3,532 csco_FinancingReceivableGross / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_LeaseReceivablesMember |  |  |
Residual value | 226 us-gaap_CapitalLeasesNetInvestmentInSalesTypeLeasesUnguaranteedResidualValuesOfLeasedProperty / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_LeaseReceivablesMember |  | 233 us-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 | 1,424 us-gaap_NotesAndLoansReceivableNetCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_LeaseReceivablesMember |  | 1,476 us-gaap_NotesAndLoansReceivableNetCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_LeaseReceivablesMember |  |  |
Noncurrent | 1,646 us-gaap_NotesAndLoansReceivableGrossNoncurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_LeaseReceivablesMember |  | 1,818 us-gaap_NotesAndLoansReceivableGrossNoncurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_LeaseReceivablesMember |  |  |
Total, net | 3,070 us-gaap_LoansAndLeasesReceivableNetReportedAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_LeaseReceivablesMember |  | 3,294 us-gaap_LoansAndLeasesReceivableNetReportedAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_LeaseReceivablesMember |  |  |
Loan Receivables |  |  |  |  |  |
Financing Receivables [Line Items] |  |  |  |  |  |
Gross | 1,720 csco_FinancingReceivableGross / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember |  | 1,683 csco_FinancingReceivableGross / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember |  |  |
Residual value | 0 us-gaap_CapitalLeasesNetInvestmentInSalesTypeLeasesUnguaranteedResidualValuesOfLeasedProperty / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember |  | 0 us-gaap_CapitalLeasesNetInvestmentInSalesTypeLeasesUnguaranteedResidualValuesOfLeasedProperty / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember |  |  |
Unearned income | 0 us-gaap_LoansAndLeasesReceivableDeferredIncome / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember |  | 0 us-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 | 820 us-gaap_NotesAndLoansReceivableNetCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember |  | 728 us-gaap_NotesAndLoansReceivableNetCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember |  |  |
Noncurrent | 820 us-gaap_NotesAndLoansReceivableGrossNoncurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember |  | 857 us-gaap_NotesAndLoansReceivableGrossNoncurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember |  |  |
Total, net | 1,640 us-gaap_LoansAndLeasesReceivableNetReportedAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember |  | 1,585 us-gaap_LoansAndLeasesReceivableNetReportedAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember |  |  |
Financed Service Contracts and Other |  |  |  |  |  |
Financing Receivables [Line Items] |  |  |  |  |  |
Gross | 3,081 csco_FinancingReceivableGross / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_FinancedServiceContractsAndOtherMember |  | 3,210 csco_FinancingReceivableGross / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_FinancedServiceContractsAndOtherMember |  |  |
Residual value | 0 us-gaap_CapitalLeasesNetInvestmentInSalesTypeLeasesUnguaranteedResidualValuesOfLeasedProperty / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_FinancedServiceContractsAndOtherMember |  | 0 us-gaap_CapitalLeasesNetInvestmentInSalesTypeLeasesUnguaranteedResidualValuesOfLeasedProperty / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_FinancedServiceContractsAndOtherMember |  |  |
Unearned income | 0 us-gaap_LoansAndLeasesReceivableDeferredIncome / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_FinancedServiceContractsAndOtherMember |  | 0 us-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 | 2,004 us-gaap_NotesAndLoansReceivableNetCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_FinancedServiceContractsAndOtherMember |  | 1,949 us-gaap_NotesAndLoansReceivableNetCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_FinancedServiceContractsAndOtherMember |  |  |
Noncurrent | 1,040 us-gaap_NotesAndLoansReceivableGrossNoncurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_FinancedServiceContractsAndOtherMember |  | 1,243 us-gaap_NotesAndLoansReceivableGrossNoncurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_FinancedServiceContractsAndOtherMember |  |  |
Total, net | 3,044 us-gaap_LoansAndLeasesReceivableNetReportedAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_FinancedServiceContractsAndOtherMember |  | 3,192 us-gaap_LoansAndLeasesReceivableNetReportedAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_FinancedServiceContractsAndOtherMember |  |  |
Total |  |  |  |  |  |
Financing Receivables [Line Items] |  |  |  |  |  |
Gross | 8,077 csco_FinancingReceivableGross / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_TotalFinancingReceivablesMember |  | 8,425 csco_FinancingReceivableGross / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_TotalFinancingReceivablesMember |  |  |
Residual value | 226 us-gaap_CapitalLeasesNetInvestmentInSalesTypeLeasesUnguaranteedResidualValuesOfLeasedProperty / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_TotalFinancingReceivablesMember |  | 233 us-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 | 4,248 us-gaap_NotesAndLoansReceivableNetCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_TotalFinancingReceivablesMember |  | 4,153 us-gaap_NotesAndLoansReceivableNetCurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_TotalFinancingReceivablesMember |  |  |
Noncurrent | 3,506 us-gaap_NotesAndLoansReceivableGrossNoncurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_TotalFinancingReceivablesMember |  | 3,918 us-gaap_NotesAndLoansReceivableGrossNoncurrent / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_TotalFinancingReceivablesMember |  |  |
Total, net | $ 7,754 us-gaap_LoansAndLeasesReceivableNetReportedAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_TotalFinancingReceivablesMember |  | $ 8,071 us-gaap_LoansAndLeasesReceivableNetReportedAmount / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = csco_TotalFinancingReceivablesMember |  |  |

X
- Definition Financing Receivable Gross + References No definition available. + Details
Name: | csco_FinancingReceivableGross
Namespace Prefix: | csco_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | csco_FinancingReceivablesLineItems
Namespace Prefix: | csco_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 50 -Paragraph 4 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=25496975&loc=d3e45377-112738 + Details
Name: | us-gaap_CapitalLeasesNetInvestmentInSalesTypeLeasesUnguaranteedResidualValuesOfLeasedProperty
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 13 -Section A Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 605 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 13.A.4(a).Q1 Response) -URI http://asc.fasb.org/extlink&oid=27012821&loc=d3e214044-122780 + Details
Name: | us-gaap_DeferredRevenue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition A valuation allowance for financing receivables that are expected to be uncollectible. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=35738203&loc=SL6953423-111524 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLosses
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=35738203&loc=d3e5074-111524 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 20 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6378556&loc=d3e10152-111534 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 50 -Paragraph 4 -Subparagraph (a)(4) -URI http://asc.fasb.org/extlink&oid=25496975&loc=d3e45377-112738 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 7 -Article 9 + Details
Name: | us-gaap_LoansAndLeasesReceivableDeferredIncome
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=28367877&loc=d3e4428-111522 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
Name: | us-gaap_LoansAndLeasesReceivableNetReportedAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition An amount representing an agreement for an unconditional promise by the maker to pay the Entity (holder) a definite sum of money at a future date(s) more than one year from the balance sheet date. Such amount may include accrued interest receivable in accordance with the terms of the debt. The debt also may contain provisions and related items including a discount or premium, payable on demand, secured, or unsecured, interest bearing or noninterest bearing, among a myriad of other features and characteristics. This amount does not include amounts related to receivables held-for-sale. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 17 -Article 5 + Details
Name: | us-gaap_NotesAndLoansReceivableGrossNoncurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition An amount representing an agreement for an unconditional promise by the maker to pay the Company (holder) a definite sum of money within one year from the balance sheet date (or the normal operating cycle, whichever is longer), net of any write-downs taken for collection uncertainty on the part of the holder. Such amount may include accrued interest receivable in accordance with the terms of the debt. The debt also may contain provisions and related items including a discount or premium, payable on demand, secured, or unsecured, interest bearing or noninterest bearing, among a myriad of other features and characteristics. This amount does not include amounts related to receivables held-for-sale. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 3 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=28367877&loc=d3e4531-111522 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6676-107765 + Details
Name: | us-gaap_NotesAndLoansReceivableNetCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=csco_FinancedServiceContractsAndOtherMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=csco_LeaseReceivablesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=csco_TotalFinancingReceivablesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=us-gaap_LoansReceivableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |