v2.4.1.9

Supplemental Information (Stock Repurchases Since Inception of Program) (Details) (USD $) Share data in Millions, unless otherwise specified | Apr. 25, 2015 | Jul. 26, 2014
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Supplementary Information [Line Items] |  |
Authorized common stock repurchase amount | $ 97,000,000,000 us-gaap_StockRepurchaseProgramAuthorizedAmount1 |
Cumulative stock repurchased and retired (in shares) | 4,408 csco_CumulativeStockRepurchasedAndRetiredShares | 4,288 csco_CumulativeStockRepurchasedAndRetiredShares
Repurchases of common stock under the repurchase program | 91,674,000,000 csco_CumulativeStockRepurchasedAndRetiredValue | 88,445,000,000 csco_CumulativeStockRepurchasedAndRetiredValue
Shares of Common Stock (in shares) |  |
Supplementary Information [Line Items] |  |
Cumulative stock repurchased and retired (in shares) | 4,408 csco_CumulativeStockRepurchasedAndRetiredShares / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |
Common Stock and Additional Paid-In Capital |  |
Supplementary Information [Line Items] |  |
Repurchases of common stock under the repurchase program | 22,318,000,000 csco_CumulativeStockRepurchasedAndRetiredValue / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockIncludingAdditionalPaidInCapitalMember |
Retained Earnings |  |
Supplementary Information [Line Items] |  |
Repurchases of common stock under the repurchase program | 69,356,000,000 csco_CumulativeStockRepurchasedAndRetiredValue / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember |
Total Cisco Shareholders’ Equity |  |
Supplementary Information [Line Items] |  |
Repurchases of common stock under the repurchase program | $ 91,674,000,000 csco_CumulativeStockRepurchasedAndRetiredValue / us-gaap_StatementEquityComponentsAxis = us-gaap_ParentMember |

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