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Earnings Per Share (Tables)
12 Months Ended
Dec. 31, 2011
Earnings Per Share [Abstract]  
Reconciliation Of PG&E Corporation's Income Available For Common Shareholders And Weighted Average Shares Of Common Stock Outstanding For Calculating Basic EPS
Reconciliation Of PG&E Corporation's Income Available For Common Shareholders And Weighted Average Shares Of Common Stock Outstanding For Calculating Diluted EPS
     Year Ended December 31,  
(in millions, except per share amounts)            2011                      2010                      2009          
Diluted         
Income available for common shareholders      $  844          $  1,099          $  1,220    

Add earnings impact of assumed conversion of participating securities:

        

Interest expense on convertible subordinated notes, net of tax

                     15    

Unrealized loss on embedded derivative, net of tax

                       
  

 

 

    

 

 

    

 

 

 
Income available for common shareholders and assumed conversion      $  844          $  1,107          $  1,237    
  

 

 

    

 

 

    

 

 

 
        
Weighted average common shares outstanding, basic      401          382          368    

Add incremental shares from assumed conversions:

        

Convertible subordinated notes

                     17    

Employee share-based compensation

                       
  

 

 

    

 

 

    

 

 

 
Weighted average common shares outstanding, diluted      402          392          386    
  

 

 

    

 

 

    

 

 

 
Total earnings per common share, diluted      $  2.10          $  2.82          $  3.20