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Earnings per Share (Tables)
3 Months Ended
Mar. 31, 2012
Earnings per Share [Abstract]  
Reconciliation of basic earnings per share to diluted earnings per share for income from continuing operations
                 
    Three Months Ended
March 31,
 
    2012     2011  

Income from continuing operations

  $ 129     $ 29  
   

 

 

   

 

 

 

Weighted average common shares for basic earnings per share

    192       187  

Effect of dilutive stock options and restricted stock awards

    5       7  
   

 

 

   

 

 

 

Weighted average common shares for diluted earnings per share

    197       194  
   

 

 

   

 

 

 

Basic earnings per share

  $ 0.67     $ 0.16  
   

 

 

   

 

 

 

Diluted earnings per share

  $ 0.65     $ 0.15