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Goodwill
9 Months Ended
Sep. 30, 2016
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill

NOTE 4 – GOODWILL

The following table summarizes goodwill at the balance sheet dates:

 

(in millions)

   September 30,
2016
     December 31,
2015
 

Gross cost (1)

   $ 503.9       $ 503.9   

Accumulated impairment losses

     (236.5      (236.5
  

 

 

    

 

 

 

Net book amount

   $ 267.4       $ 267.4   
  

 

 

    

 

 

 

 

(1)  Gross cost for 2016 and 2015 is net of $298.5 million of historical accumulated amortization.