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Purchased Intangible Assets, Net - Purchased Intangible Assets, Net (Detail) - USD ($) $ in Millions | Oct. 30, 2015 | Apr. 24, 2015
--- | --- | ---
Acquired Finite Lived Intangible Assets [Line Items] |  |
Gross Assets | $ 310 | $ 321
Accumulated Amortization | (259) | (231)
Net Assets | 51 | 90
Developed Technology |  |
Acquired Finite Lived Intangible Assets [Line Items] |  |
Gross Assets | 304 | 313
Accumulated Amortization | (255) | (225)
Net Assets | 49 | 88
Customer Contracts/Relationships |  |
Acquired Finite Lived Intangible Assets [Line Items] |  |
Gross Assets | 5 | 5
Accumulated Amortization | (3) | (3)
Net Assets | 2 | 2
Other Purchased Intangibles |  |
Acquired Finite Lived Intangible Assets [Line Items] |  |
Gross Assets | 1 | 3
Accumulated Amortization | (1) | (3)
Net Assets | $ 0 | $ 0

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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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