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Segment Information (Narrative) (Details)
$ in Millions
12 Months Ended
Dec. 31, 2021
USD ($)
segment
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Segment Reporting [Abstract]      
Number of reporting segments | segment 4    
Restructuring charges $ (16.9) $ 31.7 $ 17.5
Business combination, integration related costs 0.0 12.9 5.2
Asbestos provision, net 0.0 0.0 229.0
Environmental provision, net $ 0.0 $ 0.0 $ 18.9