Segment Geographic and Significant Customer Information - Schedule of Revenues by Geographic Region (Detail) - USD ($) $ in Millions	12 Months Ended
	Apr. 29, 2016	Apr. 24, 2015	Apr. 25, 2014
Segment Reporting Information [Line Items]
Net revenues	$ 5,546	$ 6,123	$ 6,325
United States, Canada And Latin America (Americas)
Segment Reporting Information [Line Items]
Net revenues	3,067	3,447	3,513
Europe, Middle East And Africa (EMEA)
Segment Reporting Information [Line Items]
Net revenues	1,757	1,857	1,955
Asia Pacific (APAC)
Segment Reporting Information [Line Items]
Net revenues	$ 722	$ 819	$ 857