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Restructuring (Tables)
 6 Months Ended
Jun. 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):

 

 

Six Months Ended June 30, 2020

 

Beginning balance

$

—

 

Restructuring costs

 

11.9

 

Cash payments

 

(1.4

)

Ending balance

$

10.5