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Earnings (Loss) Per Share
 3 Months Ended
Mar. 31, 2013
Earnings Per Share [Abstract]  
Earnings (Loss) Per Share
 Earnings (Loss) Per Share
The following table sets forth the computations of basic and diluted earnings (loss) per share (in millions, except per share data):
 
Three Months Ended
March 31,
 
2013
 
2012
Numerator:
 
 
 
Net earnings (loss)—numerator for basic earnings (loss) per share
$
(341
)
 
$
(1,660
)
Interest on senior convertible notes
—

 
—

Net earnings (loss) adjusted for interest on senior convertible notes
$
(341
)
 
$
(1,660
)
Denominator:
 
 
 
Denominator for basic earnings (loss) per share – weighted-average shares
335

 
335

Effect of dilutive securities:
 
 
 
Senior convertible notes
—

 
—

Employee options and shares
—

 
—

Assumed treasury shares purchased
—

 
—

Dilutive potential common shares
335

 
335

Denominator for diluted earnings (loss) per share—adjusted weighted-average shares
335

 
335

Basic earnings (loss) per share
$
(1.02
)
 
$
(4.95
)
Diluted earnings (loss) per share
$
(1.02
)
 
$
(4.95
)
The following were excluded from the calculation:
 
 
 
Convertible notes, employee stock options and deferred stock because inclusion would be anti-dilutive
51

 
46

Employee stock options because the options’ exercise prices were greater than the average market price of shares
22

 
24