Segment Geographic and Significant Customer Information - Additional Information (Detail) $ in Millions	3 Months Ended		9 Months Ended
	Jan. 29, 2021 USD ($)	Jan. 24, 2020 USD ($)	Jan. 29, 2021 USD ($) Segment	Jan. 24, 2020 USD ($)
Segment Reporting Information [Line Items]
Number of industry segment | Segment			1
Net revenues	$ 1,470	$ 1,404	$ 4,189	$ 4,011
U.S.
Segment Reporting Information [Line Items]
Net revenues	$ 693	$ 620	$ 2,035	$ 1,897