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Earnings Per Share (Tables)
 12 Months Ended
Dec. 31, 2015
Computations of Weighted Average Shares Outstanding

A computation of the weighted average shares outstanding for 2015, 2014 and 2013 is as follows:

 

(in millions)

      2015        2014        2013  

Weighted average shares outstanding:

               

Basic

        195.8           185.3           170.6   

Dilutive share-based awards

        0.4           0.8           1.4   

Convertible debt

        8.3           3.7           0.5   
    

 

 

       

 

 

       

 

 

  

Diluted

        204.5           189.8           172.5