Consolidated Statements of Income and Comprehensive Income - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Condensed Consolidated Statements of Operations and Comprehensive (Loss) Income
Revenues	$ 4,810.3	$ 3,969.9	$ 4,484.6
Cost of goods sold	3,495.6	2,832.5	3,178.5
Selling and administrative expenses	698.2	603.2	629.8
Research and development expenses	49.9	45.4	52.2
Other operating (income) expense, net	(0.9)	1.0	(10.0)
Operating income	567.5	487.8	634.1
Interest expense, net	80.3	76.6	66.0
Loss on extinguishment of debt	0.0	8.8	0.0
Interest income	(1.2)	(4.7)	(7.9)
Other non-operating expense, net	5.9	2.9	0.9
Income from continuing operations before income taxes	482.5	404.2	575.1
Provision for income taxes	95.5	78.5	117.3
Income from continuing operations	387.0	325.7	457.8
Discontinued operations:
Income (loss) before income taxes	9.9	(8.3)	18.4
(Benefit from) provision for income taxes	(24.8)	(2.7)	3.4
Income (loss) from discontinued operations	34.7	(5.6)	15.0
Net income	$ 421.7	$ 320.1	$ 472.8
Basic earnings per share attributable to common shares:
Income from continuing operations (in dollars per share)	$ 7.35	$ 5.95	$ 8.02
Income (loss) from discontinued operations (in dollars per share)	0.66	(0.10)	0.26
Basic earnings per share (in dollars per share)	8.01	5.85	8.28
Diluted earnings per share attributable to common shares:
Income from continuing operations (in dollars per share)	7.26	5.90	7.93
Income (loss) from discontinued operations (in dollars per share)	0.65	(0.10)	0.26
Diluted earnings per share (in dollars per share)	$ 7.91	$ 5.80	$ 8.19
Average shares outstanding:
Basic (shares)	52.5	54.5	56.9
Diluted (shares)	53.2	55.0	57.5
Comprehensive income:
Net income	$ 421.7	$ 320.1	$ 472.8
Other comprehensive (loss) income:
Foreign currency (losses) gains	(11.9)	39.4	(2.1)
Amortization of unrecognized net periodic benefit costs, net of tax	4.1	0.0	(2.0)
Other, net of tax	(0.4)	(12.3)	2.1
Other comprehensive (loss) income	(8.2)	27.1	(2.0)
Comprehensive income	$ 413.5	$ 347.2	$ 470.8