v2.4.0.6

Investments (Maturities Of Fixed Income Securities) (Detail) (USD $) In Millions, unless otherwise specified | Jul. 28, 2012
--- | ---
Less Than 1 Year |
Schedule of Investments [Line Items] |
Amortized Cost | $ 16,257
Fair Value | 16,274
Due In 1 To 2 Years |
Schedule of Investments [Line Items] |
Amortized Cost | 12,277
Fair Value | 12,323
Due In 2 To 5 Years |
Schedule of Investments [Line Items] |
Amortized Cost | 8,549
Fair Value | 8,623
Due After 5 Years |
Schedule of Investments [Line Items] |
Amortized Cost | 73
Fair Value | 77
Fixed Income Securities |
Schedule of Investments [Line Items] |
Amortized Cost | 37,156
Fair Value | $ 37,297

X
- Definition Fixed Income Available For Sale Debt And Equity Securities Amortized Cost. + References No definition available. + Details
Name: | csco_FixedIncomeAvailableForSaleDebtAndEquitySecuritiesAmortizedCost
Namespace Prefix: | csco_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The fair value as of the balance sheet date of financial instruments and other positions owned by the entity including: (1) mortgages, mortgage-backed and asset backed securities; (2) US government and agency obligations; (3) state and municipal government obligations; (4) other sovereign government debt; (5) corporate obligations; (6) corporate equities; (7) principal investments; (8) derivative contracts; and (9) physical commodities. Excludes financial instruments and other positions owned and pledged as collateral to counterparties. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Audit and Accounting Guide (AAG) -Number AAG-BRD -Chapter 4 -Paragraph 38, 40 -IssueDate 2006-05-01 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 940 -SubTopic 320 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6475986&loc=d3e42546-110969 + Details
Name: | us-gaap_FinancialInstrumentsOwnedAndNotPledgedAtFairValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_ScheduleOfInvestmentsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration