Supplemental Financial Information - Property and Equipment Net (Detail) - USD ($) $ in Millions	Apr. 26, 2019	Apr. 27, 2018
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 2,086	$ 2,004
Accumulated depreciation and amortization	(1,327)	(1,248)
Property and equipment, net	759	756
Land
Property Plant And Equipment [Line Items]
Property and equipment, gross	106	106
Buildings and improvements
Property Plant And Equipment [Line Items]
Property and equipment, gross	605	594
Leasehold Improvements
Property Plant And Equipment [Line Items]
Property and equipment, gross	86	88
Computer, production, engineering and other equipment
Property Plant And Equipment [Line Items]
Property and equipment, gross	817	733
Computer software
Property Plant And Equipment [Line Items]
Property and equipment, gross	357	357
Furniture and fixtures
Property Plant And Equipment [Line Items]
Property and equipment, gross	105	99
Construction-in-progress
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 10	$ 27

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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