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Segment and Geographic Information - Reconciliation of Operating Profit Loss from Segments to Consolidated (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Segment adjusted EBITDA	$ 970.3	$ 1,183.9	$ 1,102.7
Interest expense	(217.3)	(216.3)	(195.6)
Depreciation and amortization	(536.9)	(528.8)	(428.5)
Impairment charges	(665.0)	(485.5)	0.0
Restructuring and acquisition-related costs	(57.8)	(78.9)	(110.7)
Pension settlement	(9.8)	0.0	(3.2)
Gain (loss) on sale of business	(21.3)	15.5	0.0
Gain on bargain purchase of business	10.8	0.0	0.0
Gain on settlement of capital lease	0.0	15.6	0.0
Acquisition-related fair value inventory adjustment	0.0	0.0	(24.9)
Impact of change in accounting principle	0.0	0.0	3.7
Debt refinancing and redemption costs	(8.4)	(19.4)	(3.5)
Other	2.4	0.0	0.0
Income (loss) before income taxes	$ (533.0)	$ (113.9)	$ 340.0

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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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