Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended
Apr. 04, 2020	Mar. 30, 2019
Income Taxes
Effective income tax rate (as a percent)	27.50%	15.60%
U.S. federal statutory income tax rate (as a percent)	21.00%
Tax provision established related to a decision to dividend cash back from select non-U.S. jurisdictions to the U.S	$ 10
Discrete tax benefit	$ 12

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 repatriation of foreign earnings.

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Amount of increase (decrease) to previously recorded tax expense. Includes, but is not limited to, significant settlements of income tax disputes, and unusual tax positions or infrequent actions taken by the entity, including tax assessment reversal, and IRS tax settlement.

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