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Restructuring (Tables)
 9 Months Ended
Sep. 30, 2020
Restructuring And Related Activities [Abstract]  
Summary of Activity Relating to Restructuring Plan Liabilities

The following table summarizes the activity relating to our restructuring plan liabilities (in millions of dollars):

 

 

 

Nine Months Ended

September 30, 2020

 

Beginning balance

 

$

—

 

Restructuring costs

 

 

12.4

 

Cash payments and other adjustments

 

 

(5.5

)

Ending balance

 

$

6.9