Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2011

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of non-cash compensation expense and capitalized non-cash compensation

The following table summarizes non-cash compensation expense and capitalized non-cash compensation for the three and nine months endedSeptember 30, 2011 and 2010 (in millions):

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2011		2010		2011		2010
OSO	$	3	$	2	$	7	$	8
Restricted Stock Units and Shares	11		6		18		14
401(k) Match Expense	3		3		10		9
Restricted Stock Unit Bonus Grant	9		9		33		19
	26		20		68		50
Capitalized Noncash Compensation	—		—		—		—
	$	26	$	20	$	68	$	50