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Reconciliation of Total Segment Adjusted EBITDA to Income Before Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Segment Reporting Information [Line Items]
Total Segment Adjusted EBITDA	$ 275.0	$ 297.8	$ 939.9	$ 807.2
Interest expense	(54.9)	(57.5)	(162.5)	(139.9)
Depreciation and amortization	(132.9)	(122.6)	(390.9)	(303.4)
Restructuring and acquisition-related costs	(11.7)	(22.8)	(66.8)	(90.5)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement	0.0	(2.9)	0.0	(2.9)
Gain on sale of business	0.0	0.0	15.5	0.0
Gain (loss) on settlement of capital lease	0.0	0.0	15.6	0.0
Acquisition-related fair value inventory adjustment	0.0	0.0	0.0	(24.9)
Impact of change in accounting principle	0.0	0.0	0.0	3.7
Debt refinancing and redemption costs	0.0	0.0	(14.6)	(2.7)
Income before income taxes	75.5	92.0	336.2	246.6
Pension Plan [Member]
Segment Reporting Information [Line Items]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement	$ 0.0	$ (2.9)	$ 0.0	$ (2.9)

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Fair Value Inventory Adjustment from Acquisition of MPG - Inventory in process written up to fair value in purchase accounting that was sold in the period. Cost of goods sold (inventory) artificially high due to fair value mark up.

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Costs incurred for restructuring initiatives as well as expenses directly related to acquisition activity.

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Segment Adjusted EBITDA is defined as earnings before interest, income taxes, depreciation and amortization for our reportable segments, excluding the impact of restructuring and acquisition-related costs, debt refinancing and redemption costs and non-recurring items

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