Consolidated Statements of Operations - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Statement [Abstract]
Net sales	$ 3,641.6	$ 3,467.4	$ 3,367.4
Cost of goods sold	2,565.1	2,520.0	2,464.1
Gross profit	1,076.5	947.4	903.3
Operating expenses:
Selling, general and administrative expenses	621.0	580.5	573.7
Losses and other expenses, net	11.3	21.7	6.8
Restructuring charges	1.8	3.2	1.9
Goodwill impairment	0.0	5.5	0.0
Asset impairment	0.0	44.5	0.0
Pension and Other Postretirement Benefit Expense	31.4	0.0	0.0
Income from equity method investments	(18.4)	(13.4)	(13.8)
Operating income	429.4	305.4	334.7
Interest expense, net	27.0	23.6	17.2
Other income, net	(0.3)	(0.8)	(0.1)
Income from continuing operations before income taxes	402.7	282.6	317.6
Provision for income taxes	124.1	95.4	109.5
Income from continuing operations	278.6	187.2	208.1
Discontinued operations:
Loss from discontinued operations before income taxes	(1.3)	(1.0)	(3.7)
Benefit from income taxes	(0.5)	(0.4)	(1.4)
Loss from discontinued operations	(0.8)	(0.6)	(2.3)
Net income	$ 277.8	$ 186.6	$ 205.8
Earnings per share – Basic:
Income from continuing operations (in usd per share)	$ 6.41	$ 4.17	$ 4.35
Loss from discontinued operations (in usd per share)	(0.02)	(0.01)	(0.05)
Net income (in usd per share)	6.39	4.16	4.30
Earnings per share – Diluted:
Income from continuing operations (in usd per share)	6.34	4.11	4.28
Loss from discontinued operations (in usd per share)	(0.02)	(0.02)	(0.05)
Net income (in usd per share)	$ 6.32	$ 4.09	$ 4.23
Average shares outstanding:
Basic (in shares)	43.4	44.9	47.9
Diluted (in shares)	44.0	45.6	48.6
Cash dividends declared per share (in usd per share)	$ 1.65	$ 1.38	$ 1.14