Earnings (Loss) Per Share (Computations Of Basic And Diluted Earnings (Loss) Per Share) (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Earnings Per Share [Abstract]
Net earnings (loss)—numerator for basic earnings (loss) per share	$ (238)	$ (162)	$ (2,139)	$ (884)
Interest on senior convertible notes	0	0	0	0
Net earnings (loss) adjusted for interest on senior convertible notes	$ (238)	$ (162)	$ (2,139)	$ (884)
Denominator for basic earnings (loss) per share - weighted-average shares	335	335	335	334
Effect of dilutive securities, Senior convertible notes	0	0	0	0
Effect of dilutive securities, Employee options and shares	0	0	0	0
Effect of dilutive securities, Assumed treasury shares purchased	0	0	0	0
Dilutive potential common shares	335	335	335	334
Denominator for diluted earnings (loss) per share - adjusted weighted-average shares	335	335	335	334
Basic earnings (loss) per share	$ (0.71)	$ (0.48)	$ (6.38)	$ (2.64)
Diluted earnings (loss) per share	$ (0.71)	$ (0.48)	$ (6.38)	$ (2.64)
Excluded from calculation, Convertible notes, employee stock options and deferred stock because inclusion would be anti-dilutive	46	48	46	53
Excluded from calculation, Employee stock options because the options' exercise price were greater than the average market price of the shares	23	28	23	18