Supplemental Financial Information - Product Warranty Liabilities (Detail) - USD ($) $ in Millions	3 Months Ended
	Jul. 30, 2021	Jul. 31, 2020	Apr. 30, 2021
Movement In Standard Product Warranty Accrual [Roll Forward]
Balance at beginning of period	$ 32	$ 41
Expense accrued during the period	4	1
Warranty costs incurred	(5)	(5)
Balance at end of period	31	37
Standard Product Warranty Accrual, Balance Sheet Classification [Abstract]
Accrued expenses	21		$ 21
Other long-term liabilities	10		11
Total warranty liabilities	$ 31	$ 37	$ 32