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Segment Geographic and Significant Customer Information - Schedule of Revenues by Geographic Region (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jan. 26, 2018	Jan. 27, 2017	Jan. 26, 2018	Jan. 27, 2017
Segment Reporting Information [Line Items]
Net revenues	$ 1,523	$ 1,404	$ 4,270	$ 4,038
United States, Canada And Latin America (Americas)
Segment Reporting Information [Line Items]
Net revenues	823	767	2,345	2,271
Europe, Middle East And Africa (EMEA)
Segment Reporting Information [Line Items]
Net revenues	487	460	1,319	1,243
Asia Pacific (APAC)
Segment Reporting Information [Line Items]
Net revenues	$ 213	$ 177	$ 606	$ 524

X

- Definition

Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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