v2.4.1.9

Business Combinations (Summary Of Allocation Of Total Purchase Consideration) (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Apr. 25, 2015
Business Acquisition [Line Items]
Purchase Consideration	$ 242us-gaap_BusinessCombinationConsiderationTransferred1
Net Liabilities Assumed	(17)us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet
Purchased Intangible Assets	75us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill
Goodwill	184us-gaap_GoodwillGross
Metacloud, Inc.
Business Acquisition [Line Items]
Purchase Consideration	149us-gaap_BusinessCombinationConsiderationTransferred1 / us-gaap_BusinessAcquisitionAxis = csco_MetacloudInc.Member
Net Liabilities Assumed	(7)us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet / us-gaap_BusinessAcquisitionAxis = csco_MetacloudInc.Member
Purchased Intangible Assets	29us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill / us-gaap_BusinessAcquisitionAxis = csco_MetacloudInc.Member
Goodwill	127us-gaap_GoodwillGross / us-gaap_BusinessAcquisitionAxis = csco_MetacloudInc.Member
All others (three in total)
Business Acquisition [Line Items]
Purchase Consideration	93us-gaap_BusinessCombinationConsiderationTransferred1 / us-gaap_BusinessAcquisitionAxis = csco_OtherAcquisitionsMember
Net Liabilities Assumed	(10)us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet / us-gaap_BusinessAcquisitionAxis = csco_OtherAcquisitionsMember
Purchased Intangible Assets	46us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill / us-gaap_BusinessAcquisitionAxis = csco_OtherAcquisitionsMember
Goodwill	$ 57us-gaap_GoodwillGross / us-gaap_BusinessAcquisitionAxis = csco_OtherAcquisitionsMember

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 30

-Paragraph 7

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Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

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Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed.

+ References

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-Name Accounting Standards Codification

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-Paragraph 1

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Amount before accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 20

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