Goodwill and Purchased Intangible Assets, Net - Amortization Expense for Purchased Intangible Assets (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jan. 27, 2023	Jan. 28, 2022	Jan. 27, 2023	Jan. 28, 2022
Acquired Finite Lived Intangible Assets [Line Items]
Amortization expense	$ 17	$ 13	$ 51	$ 32
Cost of revenues | Developed Technology
Acquired Finite Lived Intangible Assets [Line Items]
Amortization expense	10	9	31	23
Operating expenses | Customer Contracts/Relationships
Acquired Finite Lived Intangible Assets [Line Items]
Amortization expense	7	4	19	7
Operating expenses | Other Purchased Intangibles
Acquired Finite Lived Intangible Assets [Line Items]
Amortization expense	$ 0	$ 0	$ 1	$ 2