Taxes - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 28, 2019	Sep. 29, 2018	Sep. 28, 2019	Sep. 29, 2018
Income Tax Disclosure [Abstract]
Effective tax rate (percent)	27.00%	19.00%	25.00%	16.00%
Federal corporate income tax rate (percent)	21.00%	21.00%	21.00%	21.00%
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	$ 2
Tax benefit related to excess tax benefits associated with share-based compensation			$ 3	$ 6
Tax benefit related to Tax Cuts and Jobs Act		$ 4		8
Tax benefit related to reduction of unrecognized tax benefit from receipt of written consent from IRS		$ 4		$ 21

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets.

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Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.

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Unrecognized tax benefits, result of Tax Cuts and Jobs Act

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