v2.4.1.9

Goodwill and Purchased Intangible Assets (Additional Information) (Details) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Apr. 25, 2015 | Apr. 26, 2014 | Apr. 25, 2015 | Apr. 26, 2014
Goodwill and Intangible Assets Disclosure [Abstract] |  |  |  |
Impairment charges, measured on a nonrecurring basis | $ 1 us-gaap_ImpairmentOfIntangibleAssetsExcludingGoodwill | $ 0 us-gaap_ImpairmentOfIntangibleAssetsExcludingGoodwill | $ 57 us-gaap_ImpairmentOfIntangibleAssetsExcludingGoodwill | $ 0 us-gaap_ImpairmentOfIntangibleAssetsExcludingGoodwill

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- Details
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- Definition The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of an intangible asset (excluding goodwill) to fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16373-109275 + Details
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