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