Goodwill and Intangible Assets - Goodwill (Details) - USD ($) $ in Millions		6 Months Ended
		Jun. 27, 2020	Dec. 31, 2019
Goodwill [Roll Forward]
December 31, 2019		$ 4,116.7
Purchase accounting adjustments		1.6
Business acquisitions		16.3
Business divestitures		(115.6)
Currency translation adjustments		(14.8)
June 27, 2020		4,004.2
CSCA
Goodwill [Roll Forward]
December 31, 2019		1,899.1
Purchase accounting adjustments		(10.4)
Business acquisitions		14.6
Business divestitures		0.0
Currency translation adjustments		(4.1)
June 27, 2020		1,899.2
CSCI
Goodwill [Roll Forward]
December 31, 2019	[1]	1,203.7
Purchase accounting adjustments	[1]	12.0
Business acquisitions	[1]	1.7
Business divestitures	[1]	(115.6)
Currency translation adjustments	[1]	(11.3)
June 27, 2020	[1]	1,090.5
Accumulated impairments		868.4	$ 868.4
RX
Goodwill [Roll Forward]
December 31, 2019	[2]	1,013.9
Purchase accounting adjustments	[2]	0.0
Business acquisitions	[2]	0.0
Business divestitures	[2]	0.0
Currency translation adjustments	[2]	0.6
June 27, 2020	[2]	1,014.5
Accumulated impairments		$ 109.2	$ 109.2

[1] We had accumulated goodwill impairments of $868.4 million as of each of December 31, 2019 and June 27, 2020.

[2] We had accumulated goodwill impairments of $109.2 million as of each of December 31, 2019 and June 27, 2020.