Segment and Geographic Information (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting Information [Line Items]
Net sales	[1]	$ 4,138.7	$ 4,088.2	$ 3,869.9
Operating income (loss)		$ 410.4	$ 265.2	$ 174.7
Operating income %		9.90%	6.50%	4.50%
Total assets		$ 10,425.7	$ 11,488.4	$ 11,301.4
Capital expenditures		136.0	160.2	121.4
Property, plant and equipment, net		864.1	864.6	774.2
Depreciation/amortization		296.8	287.7	297.1
Change in financial assets		0.0	95.3	(22.1)
CSCA
Segment Reporting Information [Line Items]
Net sales	[2]	2,693.1	2,693.0	2,487.7
CSCI
Segment Reporting Information [Line Items]
Net sales		1,445.6	1,395.2	1,382.2
Ireland
Segment Reporting Information [Line Items]
Net sales		23.7	29.8	23.4
Property, plant and equipment, net		0.1	20.3
United States
Segment Reporting Information [Line Items]
Net sales	[1]	2,565.9	2,579.0	2,360.3
Property, plant and equipment, net		674.9	636.3
Europe
Segment Reporting Information [Line Items]
Net sales	[1],[3]	1,393.0	1,350.6	$ 1,335.8
Property, plant and equipment, net	[4]	174.4	169.7
All other countries
Segment Reporting Information [Line Items]
Property, plant and equipment, net		$ 14.8	$ 58.6
Walmart | Net sales | Customer Concentration Risk
Segment Reporting Information [Line Items]
Concentration risk percentage		14.00%	15.20%	15.50%
Operating Segments | CSCA
Segment Reporting Information [Line Items]
Net sales		$ 2,693.1	$ 2,693.0	$ 2,487.7
Operating income (loss)		$ 206.5	$ 465.0	$ 406.7
Operating income %		7.70%	17.30%	16.30%
Total assets		$ 5,983.8	$ 4,585.1	$ 4,087.7
Capital expenditures		112.0	131.4	102.6
Property, plant and equipment, net		706.9	701.1	624.3
Depreciation/amortization		117.0	109.9	102.8
Change in financial assets			0.0	0.0
Operating Segments | CSCI
Segment Reporting Information [Line Items]
Net sales		1,445.6	1,395.2	1,382.2
Operating income (loss)		$ 36.1	$ 32.3	$ 19.6
Operating income %		2.50%	2.30%	1.40%
Total assets		$ 4,425.8	$ 4,872.4	$ 4,682.7
Capital expenditures		24.0	28.8	18.8
Property, plant and equipment, net		157.2	163.5	149.9
Depreciation/amortization		179.8	177.8	194.3
Change in financial assets			0.0	0.0
Operating Segments | RX Pharmaceuticals
Segment Reporting Information [Line Items]
Net sales		0.0	0.0	0.0
Operating income (loss)		$ 0.0	$ 0.0	$ 0.0
Operating income %		0.00%	0.00%	0.00%
Total assets		$ 16.1	$ 2,030.9	$ 2,531.0
Capital expenditures		0.0	0.0	0.0
Property, plant and equipment, net		0.0	0.0	0.0
Depreciation/amortization		0.0	0.0	0.0
Change in financial assets			0.0	0.0
Unallocated
Segment Reporting Information [Line Items]
Net sales		0.0	0.0	0.0
Operating income (loss)		$ 167.8	$ (232.1)	$ (251.6)
Operating income %		0.00%	0.00%	0.00%
Total assets		$ 0.0	$ 0.0	$ 0.0
Capital expenditures		0.0	0.0	0.0
Property, plant and equipment, net		0.0	0.0	0.0
Depreciation/amortization		$ 0.0	0.0	0.0
Change in financial assets			$ 95.3	$ (22.1)

[1] The net sales by geography is derived from the location of the entity that sells to a third party.

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

[3] Includes Ireland net sales of $23.7 million, $29.8 million, and $23.4 million for the years ended December 31, 2021, December 31, 2020, and December 31, 2019, respectively.

[4] Includes Ireland Property, plant and equipment, net of $0.1 million and $20.3 million, for the years ended December 31, 2021 and December 31, 2020, respectively.