Consolidated Statements of Operations (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Income Statement [Abstract]
Net sales	$ 1,010.0	$ 955.0	$ 2,744.4	$ 2,633.3
Cost of goods sold	699.7	681.6	1,935.5	1,913.5
Gross profit	310.3	273.4	808.9	719.8
Operating Expenses:
Selling, general and administrative expenses	156.5	143.8	456.2	430.0
Losses and other expenses, net	0.7	6.0	5.5	14.9
Restructuring charges (gains)	0.6	(0.4)	1.2	1.8
Income from equity method investments	(4.4)	(3.0)	(15.3)	(11.8)
Operating income	156.9	127.0	361.3	284.9
Interest expense, net	7.0	5.7	19.6	17.9
Other income, net	0.0	(0.7)	(0.2)	(0.7)
Income from continuing operations before income taxes	149.9	122.0	341.9	267.7
Provision for income taxes	48.2	41.7	104.0	91.9
Income from continuing operations	101.7	80.3	237.9	175.8
Discontinued Operations:
Loss from discontinued operations before income taxes	0.0	0.0	(0.9)	(0.9)
Benefit from income taxes	0.0	0.0	(0.3)	(0.4)
Loss from discontinued operations	0.0	0.0	(0.6)	(0.5)
Net income	$ 101.7	$ 80.3	$ 237.3	$ 175.3
Earnings per share – Basic:
Income from continuing operations (in dollars per share)	$ 2.35	$ 1.78	$ 5.46	$ 3.92
Loss from discontinued operations (in dollars per share)	0.00	0.00	(0.01)	(0.01)
Net income (in dollars per share)	2.35	1.78	5.45	3.91
Earnings per share – Diluted:
Income from continuing operations (in dollars per share)	2.33	1.76	5.39	3.86
Loss from discontinued operations (in dollars per share)	0.00	0.00	(0.01)	(0.01)
Net income (in dollars per share)	$ 2.33	$ 1.76	$ 5.38	$ 3.85
Average shares outstanding:
Weighted Average Number of Shares Outstanding - Basic	43.2	45.0	43.6	44.9
Weighted Average Number of Shares Outstanding - Diluted	43.7	45.6	44.2	45.6
Cash dividends declared per share	$ 0.43	$ 0.36	$ 1.22	$ 1.02