Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Income Statement [Abstract]
Net Sales	$ 1,094.7	$ 1,103.2	$ 2,156.2	$ 2,137.2
Cost of Sales	917.8	898.4	1,804.3	1,724.7
Selling, General and Administrative	83.6	92.7	174.7	181.8
Other (Income) Expense, Net	(0.4)	1.2	(0.6)	2.1
Business Combinations and Other Special Charges	6.1	5.3	14.7	15.8
Income from Operations	87.6	105.6	163.1	212.8
Interest Expense, Net	(22.5)	(18.2)	(43.8)	(35.1)
Income before Income Taxes and Equity Income of Unconsolidated Entity	65.1	87.4	119.3	177.7
Income Tax Expense	(23.6)	(10.1)	(41.2)	(43.3)
Income before Equity Income of Unconsolidated Entity	41.5	77.3	78.1	134.4
Equity Income of Unconsolidated Entity	0.5	0.5	0.9	0.9
Net Income	$ 42.0	$ 77.8	$ 79.0	$ 135.3
Net Income Per Share - Basic and Diluted (in dollars per share)	$ 0.14	$ 0.24	$ 0.25	$ 0.42
Cash dividends declared (in dollars per share)	$ 0.075	$ 0.05	$ 0.15	$ 0.10