Goodwill and Purchased Intangible Assets, Net - Purchased Intangible Assets, Net (Detail) - USD ($) $ in Millions	Oct. 29, 2021	Apr. 30, 2021
Acquired Finite Lived Intangible Assets [Line Items]
Gross Assets	$ 147	$ 256
Accumulated Amortization	(60)	(155)
Net Assets	87	101
Developed Technology
Acquired Finite Lived Intangible Assets [Line Items]
Gross Assets	106	215
Accumulated Amortization	(47)	(147)
Net Assets	59	68
Customer Contracts/Relationships
Acquired Finite Lived Intangible Assets [Line Items]
Gross Assets	38	38
Accumulated Amortization	(11)	(8)
Net Assets	27	30
Other Purchased Intangibles
Acquired Finite Lived Intangible Assets [Line Items]
Gross Assets	3	3
Accumulated Amortization	(2)	0
Net Assets	$ 1	$ 3