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Restructuring, Business Transformation and Other Cost Saving Initiatives - Restructuring Reserve Roll Forward (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Restructuring Cost and Reserve [Line Items]    
Expense $ 38.1 $ 0.0
Workforce Reduction    
Restructuring Cost and Reserve [Line Items]    
Restructuring reserve, beginning 0.0  
Expense 27.7  
Payment (6.2)  
Restructuring reserve, ending $ 21.5