Segment Information (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 29, 2019	Jun. 30, 2018	Jun. 29, 2019	Jun. 30, 2018	Dec. 31, 2018
Segment Reporting Information [Line Items]
Total Assets		$ 11,428.7		$ 11,428.7		$ 10,983.4
Net sales	[1]	1,149.0	$ 1,186.4	2,323.5	$ 2,403.4
Operating Income (Loss)		55.0	94.7	157.3	250.9
Intangible Asset Amortization		73.6	85.3	149.0	172.4
CSCA
Segment Reporting Information [Line Items]
Total Assets		4,041.9		4,041.9		3,571.7
Net sales	[2]	582.1	596.9	1,163.9	1,198.5
Operating Income (Loss)		107.8	64.6	202.0	183.2
Intangible Asset Amortization		9.3	15.3	19.3	30.5
CSCI
Segment Reporting Information [Line Items]
Total Assets		4,593.5		4,593.5		4,613.0
Net sales		327.5	357.9	678.3	735.7
Operating Income (Loss)		(2.9)	4.0	5.1	16.3
Intangible Asset Amortization		43.0	49.2	87.1	100.3
RX
Segment Reporting Information [Line Items]
Total Assets		2,793.3		2,793.3		$ 2,798.7
Net sales		239.4	231.6	481.3	469.2
Operating Income (Loss)		14.7	53.6	75.3	114.8
Intangible Asset Amortization		21.3	20.8	42.6	41.6
Unallocated
Segment Reporting Information [Line Items]
Net sales		0.0	0.0	0.0	0.0
Operating Income (Loss)		(64.6)	(27.5)	(125.1)	(63.4)
Intangible Asset Amortization		$ 0.0	$ 0.0	$ 0.0	$ 0.0

[1] Derived from the location of the entity that sells to a third party.

[2] Includes net sales from our OTC contract manufacturing business.