Segment and Related Information, Reconciliation of Income from Operations (Details) - USD ($) $ in Millions	3 Months Ended
Apr. 04, 2021	Mar. 29, 2020
Segment and Related Information [Abstract]
Litigation expenses	$ 0.0	$ (0.6)
Income from operations	58.8	57.7
Non-operating deductions, net	(9.4)	(8.7)
Income from operations before tax and equity in earnings	49.4	49.0
Reportable Segments [Member]
Segment and Related Information [Abstract]
Income from operations	62.9	58.8
Unallocated and Other Corporate Expenses [Member]
Segment and Related Information [Abstract]
Income from operations	$ (4.1)	$ (0.5)

Amount of gain (loss) recognized in settlement of litigation and insurance claims. Excludes claims within an insurance entity's normal claims settlement process.

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