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
Supplementary Information [Line Items]    
Authorized common stock repurchase amount $ 97,000,000,000us-gaap_StockRepurchaseProgramAuthorizedAmount1  
Cumulative stock repurchased and retired (in shares) 4,408csco_CumulativeStockRepurchasedAndRetiredShares 4,288csco_CumulativeStockRepurchasedAndRetiredShares
Repurchases of common stock under the repurchase program 91,674,000,000csco_CumulativeStockRepurchasedAndRetiredValue 88,445,000,000csco_CumulativeStockRepurchasedAndRetiredValue
Shares of Common Stock (in shares)    
Supplementary Information [Line Items]    
Cumulative stock repurchased and retired (in shares) 4,408csco_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 22,318,000,000csco_CumulativeStockRepurchasedAndRetiredValue
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockIncludingAdditionalPaidInCapitalMember		  
Retained Earnings    
Supplementary Information [Line Items]    
Repurchases of common stock under the repurchase program 69,356,000,000csco_CumulativeStockRepurchasedAndRetiredValue
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember		  
Total Cisco Shareholders’ Equity    
Supplementary Information [Line Items]    
Repurchases of common stock under the repurchase program $ 91,674,000,000csco_CumulativeStockRepurchasedAndRetiredValue
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_ParentMember