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Segment Geographic and Significant Customer Information - Schedule of Revenues by Geographic Region (Detail) - USD ($) $ in Millions | 3 Months Ended
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Jul. 31, 2020 | Jul. 26, 2019
Segment Reporting Information [Line Items] |  |
Net revenues | $ 1,303 | $ 1,236
United States, Canada And Latin America (Americas) |  |
Segment Reporting Information [Line Items] |  |
Net revenues | 709 | 635
Europe, Middle East And Africa (EMEA) |  |
Segment Reporting Information [Line Items] |  |
Net revenues | 383 | 402
Asia Pacific (APAC) |  |
Segment Reporting Information [Line Items] |  |
Net revenues | $ 211 | $ 199

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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045 + Details
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