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Earning Per Common Share (Tables)
9 Months Ended
Sep. 30, 2011
Earning Per Common Share (Tables) [Abstract] 
Numerators and denominators used in the computations of basic and diluted earnings per common share
                                 
    Three Months Ended     Nine Months Ended  
    September 30,     September 30,  
    2011     2010     2011     2010  
Numerator (basic and diluted):
                               
Net income (loss)
  $ 36     $ (5 )   $ (2 )   $ (9 )
Allocation to unvested restricted stock awards
    (1 )     (1 )     (2 )     (2 )
 
                       
Net income (loss) attributable to common shareholders
    35       (6 )     (4 )     (11 )
 
                       
Net income (loss) available to common shareholders
  $ 35     $ (6 )   $ (4 )   $ (11 )
 
                       
 
                               
Denominator:
                               
Basic common shares (based upon weighted average)
    348       349       348       349  
Add:
                               
Contingent common shares
                       
Stock option dilution
                       
 
                       
Diluted common shares
    348       349       348       349