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Segment and Geographic Information - Reconciliation of Operating Profit Loss from Segments to Consolidated (Details) - USD ($) $ in Millions | 12 Months Ended
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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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