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Earnings (Loss) Per Share
9 Months Ended
Sep. 30, 2011
Earnings (Loss) Per Share [Abstract] 
Earnings (Loss) Per Share
5. Earnings (Loss) Per Share
Basic earnings (loss) per share are based on the weighted average number of common shares outstanding. Diluted earnings per share are based on the weighted average number of common shares outstanding plus the dilutive effect, if any, of restricted stock units, or RSUs, and performance shares, the potential exercise of outstanding stock options and the potential conversion of our $400 million of 10% convertible senior notes. The reconciliation of basic loss per share to diluted loss per share is shown in the following table:
                         
                    Weighted  
                    Average  
    Net     Shares     Per-Share  
(millions, except per-share and share data)   Loss     (000)     Amount  
 
Three Months Ended September 30, 2011:
                       
Basic loss
  $ (115 )     105,305     $ (1.09 )
 
Diluted loss
  $ (115 )     105,305     $ (1.09 )
 
 
                       
Three Months Ended September 30, 2010:
                       
Basic loss
  $ (100 )     100,109     $ (1.00 )
 
Diluted loss
  $ (100 )     100,109     $ (1.00 )
 
 
                       
Nine Months Ended September 30, 2011:
                       
Basic loss
  $ (290 )     103,593     $ (2.80 )
 
Diluted loss
  $ (290 )     103,593     $ (2.80 )
 
 
                       
Nine Months Ended September 30, 2010:
                       
Basic loss
  $ (284 )     99,671     $ (2.85 )
 
Diluted loss
  $ (284 )     99,671     $ (2.85 )
 
     The diluted losses per share for the third quarter and the first nine months of 2011 and 2010 were computed using the weighted average number of common shares outstanding during those periods. The approximately 35.1 million shares issuable upon conversion of the $400 million of 10% convertible senior notes we issued in 2008 at the initial conversion price of $11.40 per share were not included in the computation of diluted loss per share for those periods because their inclusion was anti-dilutive. Stock options, RSUs and performance shares with respect to 4.9 million common shares for the third quarter of 2011, 3.4 million common shares for the first nine months of 2011, 6.5 million common shares for the third quarter of 2010 and 6.7 million common shares for the first nine months of 2010 were not included in the computation of diluted loss per share for those periods because their inclusion was anti-dilutive.