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Earnings per Share (Tables)
 3 Months Ended
Mar. 31, 2014
Earnings Per Share [Abstract]  
Reconciliation of Basic Earnings Per Share to Diluted Earnings Per Share for Income from Continuing Operations

The following is a reconciliation of basic earnings per share to diluted earnings per share for income from continuing operations attributable to our common stockholders (in millions, except per share data):

 

     Three Months Ended
March 31,		  
     2014      2013  

Income from continuing operations

    $ 136       $ 143   
  

 

 

     

 

 

  

Weighted average common shares for basic earnings per share

      190         191   

Effect of dilutive stock options and restricted stock awards

      2         3   
  

 

 

     

 

 

  

Weighted average common shares for diluted earnings per share

      192         194   
  

 

 

     

 

 

  

Basic earnings per share

    $ 0.71       $ 0.74   
  

 

 

     

 

 

  

Diluted earnings per share

    $ 0.71       $ 0.73