Earnings (Loss) per Share (Tables)

12 Months Ended

Dec. 31, 2012

Earnings (Loss) per Share [Abstract]

Schedule of Weighted Average Number of Shares

Reconciliations of the amounts used in the basic and diluted earnings (loss) per common share computations for the years ended December 31, 2012, 2011 and 2010, are as follows (shares in thousands):

	2012	2011	2010
Diluted weighted average shares calculation:
Weighted average shares outstanding (basic)	467,752	485,381	486,044
Share-based awards	3,591	—	1,250
Weighted average shares outstanding (diluted)	471,343	485,381	487,294

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

We excluded the following items from diluted earnings (loss) per common share for the years ended December 31, 2012, 2011 and 2010, because they were anti-dilutive (shares in thousands):

	2012	2011	2010
Share-based awards	10,302	15,260	14,883