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Consolidated Statements of Comprehensive Income (Loss) (Unaudited) (Parenthetical) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Other comprehensive income (loss):        
Income tax expense (benefit) on translation adjustments on derivative instruments $ (12.6) $ 9.6 $ (12.5) $ 11.6
Income tax expense on defined benefit pension plans and retiree health care plan $ 0.3 $ 0.1 7.9 $ 0.2
Income tax expense on pension plan settlement     $ (3.9)