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Supplemental Financial Information - Property and Equipment Net (Detail) - USD ($) $ in Millions	Oct. 25, 2019	Apr. 26, 2019
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 2,125	$ 2,086
Accumulated depreciation and amortization	(1,379)	(1,327)
Property and equipment, net	746	759
Land
Property Plant And Equipment [Line Items]
Property and equipment, gross	104	106
Buildings and improvements
Property Plant And Equipment [Line Items]
Property and equipment, gross	609	605
Leasehold Improvements
Property Plant And Equipment [Line Items]
Property and equipment, gross	86	86
Computer, production, engineering and other equipment
Property Plant And Equipment [Line Items]
Property and equipment, gross	841	817
Computer software
Property Plant And Equipment [Line Items]
Property and equipment, gross	358	357
Furniture and fixtures
Property Plant And Equipment [Line Items]
Property and equipment, gross	106	105
Construction-in-progress
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 21	$ 10

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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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