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Restructuring and Acquisition-Related Costs - Restructuring Reserve Table (Details) - USD ($)
$ in Millions
12 Months Ended 24 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2021
Restructuring Reserve [Roll Forward]        
Restructuring reserve $ 11.5 $ 12.2 $ 4.0 $ 12.2
Restructuring charges 43.2 58.4 39.8  
Cash utilization (51.3) (59.1) (31.6)  
Restructuring reserve 3.4 11.5 12.2 3.4
Employee Severance [Member]        
Restructuring Reserve [Roll Forward]        
Restructuring reserve 1.7 4.8 2.4 4.8
Restructuring charges 2.9 22.3 19.4  
Cash utilization (3.9) (25.4) (17.0)  
Restructuring reserve 0.7 1.7 4.8 0.7
Other Restructuring [Member]        
Restructuring Reserve [Roll Forward]        
Restructuring reserve 9.8 7.4 1.6 7.4
Restructuring charges 40.3 36.1 20.4  
Cash utilization (47.4) (33.7) (14.6)  
Restructuring reserve $ 2.7 $ 9.8 $ 7.4 $ 2.7