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Cost-Reduction Actions - Liabilities and Expected Future Payments Related to Work-Force Reduction Actions (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Restructuring Reserve [Roll Forward]        
Additional provisions $ 4.6 $ 8.1 $ 5.3 $ 14.2
Work-force Reductions        
Restructuring Reserve [Roll Forward]        
Balance at beginning of period     11.7  
Additional provisions     10.0  
Payments     (8.8)  
Changes in estimates     (5.6)  
Translation adjustments     (0.1)  
Balance at end of period 7.2   7.2  
Short-term 7.2   7.2  
Work-force Reductions | U.S.        
Restructuring Reserve [Roll Forward]        
Balance at beginning of period     4.2  
Additional provisions     2.8  
Payments     (2.9)  
Changes in estimates     (1.4)  
Translation adjustments     0.0  
Balance at end of period 2.7   2.7  
Short-term 2.7   2.7  
Work-force Reductions | International        
Restructuring Reserve [Roll Forward]        
Balance at beginning of period     7.5  
Additional provisions     7.2  
Payments     (5.9)  
Changes in estimates     (4.2)  
Translation adjustments     (0.1)  
Balance at end of period 4.5   4.5  
Short-term $ 4.5   $ 4.5