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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Parentheticals) - USD ($)
$ in Millions
3 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Statement of Comprehensive Income [Abstract]    
Change in derivative gains on cash flow hedges, tax expense (benefit) $ (1.9) $ 0.2
Pension and other post-employment benefits (losses), tax expense (benefit) $ 0.0 $ 0.0