Segment Information (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 27, 2020	Jun. 29, 2019	Jun. 27, 2020	Jun. 29, 2019	Dec. 31, 2019
Segment Reporting Information [Line Items]
Total Assets		$ 12,128.3		$ 12,128.3		$ 11,301.4
Net sales	[1]	1,219.1	$ 1,149.0	2,560.1	$ 2,323.5
Operating Income (Loss)		117.4	55.0	263.1	157.3
Intangible Asset Amortization		72.2	73.6	145.4	149.0
CSCA
Segment Reporting Information [Line Items]
Total Assets		4,981.5		4,981.5		3,990.2
Net sales	[2]	627.6	582.1	1,328.2	1,163.9
Operating Income (Loss)		106.3	107.8	230.8	202.0
Intangible Asset Amortization		12.6	9.3	26.2	19.3
CSCI
Segment Reporting Information [Line Items]
Total Assets		4,675.9		4,675.9		4,682.7
Net sales		321.1	327.5	703.8	678.3
Operating Income (Loss)		10.5	(2.9)	35.6	5.1
Intangible Asset Amortization		38.4	43.0	76.7	87.1
RX
Segment Reporting Information [Line Items]
Total Assets		2,470.9		2,470.9		$ 2,628.5
Net sales		270.4	239.4	528.1	481.3
Operating Income (Loss)		47.8	14.7	99.4	75.3
Intangible Asset Amortization		21.2	21.3	42.5	42.6
Unallocated
Segment Reporting Information [Line Items]
Net sales		0.0	0.0	0.0	0.0
Operating Income (Loss)		(47.2)	(64.6)	(102.7)	(125.1)
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.