Segment Information (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 28, 2019	Sep. 29, 2018	Sep. 28, 2019	Sep. 29, 2018	Dec. 31, 2018
Segment Reporting Information [Line Items]
Total Assets		$ 11,310.8		$ 11,310.8		$ 10,983.4
Net sales	[1]	1,191.1	$ 1,133.1	3,514.6	$ 3,536.5
Operating Income (Loss)		54.4	(122.0)	211.7	129.0
Intangible Asset Amortization		78.7	84.3	227.7	256.8
CSCA
Segment Reporting Information [Line Items]
Total Assets		3,989.0		3,989.0		3,571.7
Net sales	[2]	613.3	596.2	1,777.2	1,794.7
Operating Income (Loss)		81.3	(119.0)	283.3	64.2
Intangible Asset Amortization		12.6	15.3	31.9	45.8
CSCI
Segment Reporting Information [Line Items]
Total Assets		4,589.7		4,589.7		4,613.0
Net sales		347.5	334.2	1,025.8	1,069.9
Operating Income (Loss)		13.2	(4.7)	18.4	11.6
Intangible Asset Amortization		43.3	48.2	130.4	148.6
RX
Segment Reporting Information [Line Items]
Total Assets		2,732.1		2,732.1		$ 2,798.7
Net sales		230.3	202.7	711.6	671.9
Operating Income (Loss)		19.7	36.1	95.0	150.9
Intangible Asset Amortization		22.8	20.8	65.4	62.4
Unallocated
Segment Reporting Information [Line Items]
Net sales		0.0	0.0	0.0	0.0
Operating Income (Loss)		(59.8)	(34.4)	(185.0)	(97.7)
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.