Goodwill and Intangible Assets - Goodwill (Details) - USD ($) $ in Millions		3 Months Ended
		Apr. 03, 2021	Dec. 31, 2020
Goodwill [Roll Forward]
Goodwill, Beginning Balance		$ 3,095.7
Purchase accounting adjustments		0.0
Currency translation adjustments		(43.4)
Goodwill, Ending Balance		3,052.3
CSCA
Goodwill [Roll Forward]
Goodwill, Beginning Balance		1,905.0
Purchase accounting adjustments		2.4
Currency translation adjustments		(1.9)
Goodwill, Ending Balance		1,905.5
CSCI
Goodwill [Roll Forward]
Goodwill, Beginning Balance	[1]	1,190.7
Purchase accounting adjustments	[1]	(2.4)
Currency translation adjustments	[1]	(41.5)
Goodwill, Ending Balance	[1]	1,146.8
Accumulated impairments		$ (868.4)	$ (868.4)

[1] We had accumulated goodwill impairments of $868.4 million as of December 31, 2020 and April 3, 2021.