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Earnings (Loss) Per Share
 3 Months Ended
Mar. 31, 2012
Earnings Per Share [Abstract]  
Earnings Per Share [Text Block]
EARNINGS (LOSS) PER SHARE

We calculate basic earnings (loss) per share by dividing net income (loss) by the weighted average number of common shares outstanding. Shares issuable upon the satisfaction of certain conditions are considered outstanding and included in the computation of basic earnings (loss) per share. The following table shows the computation of basic and diluted earnings (loss) per share:
 
Three Months Ended March 31,
(in millions, except per share data)
2012
2011
Net income (loss)
$
124

$
(318
)
 
 
 
Basic weighted average shares outstanding
843

837

Dilutive effect of share based awards
4

—

Diluted weighted average shares outstanding
847

837

 
 
 
Basic earnings (loss) per share
$
0.15

$
(0.38
)
Diluted earnings (loss) per share
$
0.15

$
(0.38
)
 
 
 
Antidilutive common stock equivalents excluded from diluted earnings (loss) per share
21
32