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Supplemental Disclosures of Cash Flow Information (Tables)
 6 Months Ended
Jun. 30, 2019
Cash and Cash Equivalents [Abstract]  
Supplemental disclosures of cash flow information
 
Six-month period
ended June 30,
 
Supplemental disclosures of cash flow information (in millions):
 
2019
   
2018
 
Interest paid
     $
74.6
       $
65.9
  
Income taxes paid, net
    
31.2
      
40.5
  
Summary of Cash, Cash Equivalents and Restricted Cash
The following is a reconciliation of our June 30 cash, cash equivalents and restricted cash balances as presented in the consolidated statement of cash flows for the six-month periods ended June 30, 2019 and 2018 (in millions):
  
June 30,
 
  
2019
   
2018
 
Cash and cash equivalents
   $
512.3
     $
652.2
  
Restricted cash
    
2,034.3
      
1,692.5
  
                 
Total cash, cash equivalents and restricted cash
   $
  2,546.6
     $
  2,344.7