Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Name:	us-gaap_RestructuringCharges
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Restructuring and Related Charges (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 24, 2021	Sep. 25, 2020	Sep. 24, 2021	Sep. 25, 2020	Feb. 01, 2018
Restructuring Cost and Reserve
Restructuring charges, net	$ 11.0	$ 3.2	$ 17.5	$ 15.8
Restructuring Fiscal 2018 Plan \| Minimum
Restructuring Cost and Reserve
Restructuring and Related Cost, Expected Cost					$ 100.0
Restructuring Fiscal 2018 Plan \| Maximum
Restructuring Cost and Reserve
Restructuring and Related Cost, Expected Cost					$ 125.0