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Income Taxes (Details) - USD ($) $ in Millions		3 Months Ended
	Mar. 27, 2020	Mar. 31, 2020	Mar. 31, 2019
Income Tax Disclosure [Abstract]
Effective tax rate (percent)		166.70%	20.80%
Change in amount of valuation allowance		$ 52
Unrecognized tax benefits decrease		28
Unrecognized tax benefits, portion expected to be resolved in the next fiscal year		59
Unrecognized tax benefits that would impact effective tax rate		$ 57
Amount of refundable AMT credits	$ 18

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Effective Income Tax Rate Reconciliation, CARES Act, Refundable AMT Credits, Amount

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

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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 increase (decrease) in unrecognized tax benefits attributable to uncertain tax positions taken in tax returns.

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