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Earnings (Loss) Per Share (Tables)
 6 Months Ended
Jun. 30, 2013
Earnings Per Share [Abstract]  
Calculation of Basic and Diluted Earnings Per Share
The calculation of basic and diluted earnings (loss) per share (“EPS”) is presented below.
 
Three Months Ended June 30,
Six Months Ended June 30,
 
2013
2012
2013
2012
 
(in millions, except per share amounts)
Basic EPS
 
 
 
 
Net income (loss)
$
(68
)
$
53

$
(127
)
$
111

Weighted average common shares outstanding
14.7

10.1

12.5

10.1

Basic EPS
(4.56
)
5.23

(10.08
)
10.96

 
 
 
 
 
Diluted EPS
 
 
 
 
Net income (loss)
$
(68
)
$
53

$
(127
)
$
111

Weighted average common shares outstanding
14.7

10.1

12.5

10.1

Dilutive effect of stock awards
—

—

—

—

Weighted average diluted shares outstanding
14.7

10.1

12.5

10.1

Diluted EPS
$
(4.56
)
$
5.23

$
(10.08
)
$
10.96