Taxes - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 29, 2019	Jun. 30, 2018	Jun. 29, 2019	Jun. 30, 2018
Income Tax Disclosure [Abstract]
Effective tax rate (percent)	25.00%	22.00%	24.00%	14.00%
Federal corporate income tax rate (percent)	21.00%	21.00%	21.00%	21.00%
Tax benefit related to excess tax benefits associated with share-based compensation	$ 2	$ 3	$ 3	$ 5
Tax benefit related to Tax Cuts and Jobs Act		$ 4		4
Tax benefit related to lapse of statute of limitations			$ 2
Tax benefit related to reduction of unrecognized tax benefit from receipt of written consent from IRS				$ 17

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 difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to excess tax benefit for share-based compensation cost.

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

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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Unrecognized tax benefits, result of Tax Cuts and Jobs Act

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