Condensed Consolidated Statements of Operations - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Income Statement [Abstract]
Net Sales	$ 1,103.2	$ 1,057.1	$ 2,137.2	$ 2,065.3
Cost of Sales	898.4	859.1	1,724.7	1,677.7
Selling, General and Administrative	92.7	88.7	181.8	174.1
Other Expense (Income), Net	1.2	(4.8)	2.1	(8.1)
Business Combinations and Other Special Charges	5.3	3.9	15.8	6.1
Income from Operations	105.6	110.2	212.8	215.5
Interest Expense, Net	(18.2)	(17.8)	(35.1)	(34.7)
Income before Income Taxes and Equity Income of Unconsolidated Entity	87.4	92.4	177.7	180.8
Income Tax Expense	(10.1)	(35.1)	(43.3)	(68.7)
Income before Equity Income of Unconsolidated Entity	77.3	57.3	134.4	112.1
Equity Income of Unconsolidated Entity	0.5	0.3	0.9	0.6
Net Income	$ 77.8	$ 57.6	$ 135.3	$ 112.7
Net Income Per Share - Basic and Diluted (in dollars per share)	$ 0.24	$ 0.17	$ 0.42	$ 0.34
Cash dividends declared (in dollars per share)	$ 0.05	$ 0.05	$ 0.10	$ 0.10