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Income Taxes (Tables)
3 Months Ended
Mar. 31, 2020
Income Tax Disclosure [Abstract]  
Reconciliation of Liability for Uncertain Tax Positions
The following is a reconciliation of the liability for uncertain tax positions (in millions):
Balance at December 31, 2019
  $
109.1
 
Additions for tax positions
 
 
6.1
 
Reductions for tax positions
   
(0.6
)
 
         
Balance at March 31, 2020
 
$
114.6