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Segment Geographic and Significant Customer Information - Schedule of Revenues by Geographic Region (Detail) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Oct. 28, 2016 | Oct. 30, 2015 | Oct. 28, 2016 | Oct. 30, 2015
Segment Reporting Information [Line Items] |  |  |  |
Net revenues | $ 1,340 | $ 1,445 | $ 2,634 | $ 2,780
United States, Canada And Latin America (Americas) |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenues | 768 | 819 | 1,504 | 1,564
Europe, Middle East And Africa (EMEA) |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenues | 396 | 430 | 783 | 845
Asia Pacific (APAC) |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenues | $ 176 | $ 196 | $ 347 | $ 371

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