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Accumulated Other Comprehensive Loss - Components of Accumulated Other Comprehensive Loss,Net of Tax (Parenthetical) (Details) - USD ($) $ in Millions | Dec. 31, 2019 | Dec. 31, 2018
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Translation gain (loss) on derivative instruments, net of income taxes of $(9.1) and $(12.9), respectively |  |
Accumulated Other Comprehensive Income Loss [Line Items] |  |
Accumulated other comprehensive loss, income taxes | $ (9.1) | $ (12.9)
Defined benefit pension plans and Retiree health care plan | Defined benefit pension plans, net of income taxes of $(30.9) and $(23.2), respectively |  |
Accumulated Other Comprehensive Income Loss [Line Items] |  |
Accumulated other comprehensive loss, income taxes | (30.9) | (23.2)
Defined benefit pension plans and Retiree health care plan | Retiree health care plan, net of income taxes of $1.6 and $2.0, respectively |  |
Accumulated Other Comprehensive Income Loss [Line Items] |  |
Accumulated other comprehensive loss, income taxes | $ 1.6 | $ 2.0

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- Definition Amount of tax expense (benefit) allocated to accumulated other comprehensive income (loss) including portion attributable to noncontrolling interest. + References No definition available. + Details
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