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Debt (Tables)
12 Months Ended
Dec. 31, 2019
Debt Disclosure [Abstract]  
Schedule of Long-term Debt
Long-term debt as of December 31 consisted of the following:
20192018
Term credit facility$371.4  $492.5  
3.912% Senior Notes due 2021
500.0  500.0  
4.272% Senior Notes due 2023
750.0  750.0  
4.900% Senior Notes due 2028
750.0  750.0  
Other obligations0.4  0.5  
Unamortized debt issuance costs(16.8) (20.7) 
2,355.0  2,472.3  
Less current portion of long-term debt(24.5) (29.0) 
Total long-term debt$2,330.5  $2,443.3