Supplemental Financial Information - Property and Equipment Net (Detail) - USD ($) $ in Millions	Jan. 29, 2021	Apr. 24, 2020
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 2,160	$ 2,088
Accumulated depreciation and amortization	(1,429)	(1,361)
Property and equipment, net	731	727
Land
Property Plant And Equipment [Line Items]
Property and equipment, gross	103	103
Buildings and improvements
Property Plant And Equipment [Line Items]
Property and equipment, gross	601	597
Leasehold Improvements
Property Plant And Equipment [Line Items]
Property and equipment, gross	87	89
Computer, production, engineering and other equipment
Property Plant And Equipment [Line Items]
Property and equipment, gross	867	802
Computer software
Property Plant And Equipment [Line Items]
Property and equipment, gross	359	359
Furniture and fixtures
Property Plant And Equipment [Line Items]
Property and equipment, gross	100	106
Construction-in-progress
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 43	$ 32

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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