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Income Taxes - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 04, 2020	Jun. 29, 2019	Jul. 04, 2020	Jun. 29, 2019
Operating Loss Carryforwards [Line Items]
U.S. federal statutory income tax rate			21.00%	21.00%
Income tax benefit	$ 41.0	$ (73.3)	$ 14.5	$ (116.4)
Government Assistance, CARES Act
Operating Loss Carryforwards [Line Items]
Income tax benefit	$ 28.0		$ 28.0

X

- Definition

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

+ References

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- Definition

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

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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