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								12 Months Ended
	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2010	Mar. 31, 2010	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Earnings (Loss) Per Share [Abstract]
Net earnings (loss) - numerator for basic earnings (loss) per share									$ (1,979)	$ (471)	$ (1,468)
Denominator for basic earnings (loss) per share - weighted average shares									335	333	294
Effect of dilutive securities, Employee options and shares
Effect of dilutive securities, Assumed treasury shares purchased
Diluted potential common shares
Denominator for diluted earnings loss per share - weighted-average shares									335	333	294
Basic earnings (loss) per share	$ (3.27)	$ (0.48)	$ (0.85)	$ (1.31)	$ (0.29)	$ 0.43	$ (0.03)	$ (1.52)	$ (5.91)	$ (1.41)	$ (4.99)
Diluted earnings (loss) per share	$ (3.27)	$ (0.48)	$ (0.85)	$ (1.31)	$ (0.29)	$ 0.39	$ (0.03)	$ (1.52)	$ (5.91)	$ (1.41)	$ (4.99)
Excluded from calculation, Convertible notes, employee stock options and deferred stock because inclusion would be anti-dilutive									51	57	19
Excluded from calculation, Employee stock options because the options' exercise price was greater than the average market price of the shares									20	12	18