Supplemental Information (Stock Repurchases Since Inception of Program) (Details) (USD $)	Oct. 25, 2014	Jul. 26, 2014
Supplementary Information [Line Items]
Authorized common stock repurchase amount	$ 97,000,000,000
Repurchases of common stock under the repurchase program	89,458,000,000	88,445,000,000
Shares of Common Stock
Supplementary Information [Line Items]
Repurchases of common stock under the repurchase program	4,329,000,000
Common Stock and Additional Paid-In Capital
Supplementary Information [Line Items]
Repurchases of common stock under the repurchase program	21,662,000,000
Retained Earnings
Supplementary Information [Line Items]
Repurchases of common stock under the repurchase program	67,796,000,000
Total Cisco Shareholders’ Equity
Supplementary Information [Line Items]
Repurchases of common stock under the repurchase program	$ 89,458,000,000