Goodwill and Purchased Intangible Assets, Net - Purchased Intangible Assets, Net (Detail) - USD ($) $ in Millions	Jan. 28, 2022	Apr. 30, 2021
Acquired Finite Lived Intangible Assets [Line Items]
Gross Assets	$ 223	$ 256
Accumulated Amortization	(73)	(155)
Net Assets	150	101
Developed Technology
Acquired Finite Lived Intangible Assets [Line Items]
Gross Assets	151	215
Accumulated Amortization	(56)	(147)
Net Assets	95	68
Customer Contracts/Relationships
Acquired Finite Lived Intangible Assets [Line Items]
Gross Assets	68	38
Accumulated Amortization	(15)	(8)
Net Assets	53	30
Other Purchased Intangibles
Acquired Finite Lived Intangible Assets [Line Items]
Gross Assets	4	3
Accumulated Amortization	(2)	0
Net Assets	$ 2	$ 3