Consolidated Statements of Operations - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Statement [Abstract]
Net sales	$ 1,059.9	$ 1,055.0	$ 3,229.3	$ 2,720.1
Cost of goods sold	764.7	731.7	2,294.5	1,955.3
Gross profit	295.2	323.3	934.8	764.8
Operating Expenses:
Selling, general and administrative expenses	134.2	151.8	447.4	412.7
Losses (gains) and other expenses, net	2.1	3.4	4.7	5.6
Restructuring charges	(0.3)	(0.1)	(1.6)	(10.6)
Loss from natural disasters, net of insurance recoveries	0.0	(4.9)	0.0	(7.6)
Income from equity method investments	(4.1)	(4.0)	(11.6)	(11.2)
Operating income	162.7	167.1	492.7	339.5
non-cash pension settlement loss	0.3	0.3	1.1	0.3
Interest expense, net	6.5	6.5	18.8	22.2
Other expense (income), net	1.1	1.1	2.9	3.3
Income from continuing operations before income taxes	154.8	159.2	469.9	313.7
Provision for income taxes	28.5	27.5	89.4	68.8
Income from continuing operations	126.3	131.7	380.5	244.9
Discontinued Operations:
Loss from discontinued operations before income taxes	0.0	0.0	(0.1)	(0.9)
Income tax benefit	0.0	0.0	0.0	(0.6)
Loss from discontinued operations	0.0	0.0	(0.1)	(0.3)
Net income	$ 126.3	$ 131.7	$ 380.4	$ 244.6
Earnings per share – Basic:
Income from continuing operations (in dollars per share)	$ 3.43	$ 3.44	$ 10.17	$ 6.39
Loss from discontinued operations (in dollars per share)	0	0	0	(0.01)
Net income (in dollars per share)	3.43	3.44	10.17	6.38
Earnings per share – Diluted:
Income from continuing operations (in dollars per share)	3.41	3.42	10.10	6.35
Loss from discontinued operations (in dollars per share)	0	0	0	(0.01)
Net income (in dollars per share)	$ 3.41	$ 3.42	$ 10.10	$ 6.34