Stockholders' Equity

9 Months Ended

Sep. 30, 2011

Disclosure Text Block [Abstract]

Stockholders' Equity

9.  Stockholders' Equity

       The reconciliation between basic and diluted EPS from continuing operations attributable to common stockholders is as follows:

		Three Months Ended				Nine Months Ended
		September 30,				September 30,
millions except per-share amounts		2011		2010		2011		2010
Income (loss):
	Net income (loss) attributable to common stockholders	$	(3,051)	$	(26)	$	(2,291)	$	650
	Less: Distributions on participating securities		—		—		—		1
	Less: Undistributed income allocated to participating securities		—		—		—		4
Basic		$	(3,051)	$	(26)	$	(2,291)	$	645
Diluted		$	(3,051)	$	(26)	$	(2,291)	$	645
Shares:
	Average number of common shares outstanding—basic		498		496		498		495
	Dilutive effect of stock options and
	performance-based stock awards		—		—		—		1
	Average number of common shares outstanding—diluted		498		496		498		496
	Excluded (1)		12		12		12		6
Income (loss) per common share:
	Basic	$	(6.12)	$	(0.05)	$	(4.60)	$	1.30
	Diluted	$	(6.12)	$	(0.05)	$	(4.60)	$	1.30
	Dividends per common share	$	0.09	$	0.09	$	0.27	$	0.27

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(1)Inclusion of the average shares for these awards would have had an anti-dilutive effect.