Discontinued Operations (Tables)

9 Months Ended

Sep. 30, 2011

Discontinued Operations

Summarized results of discontinued operations

	Three months ended September 30,					Nine months ended September 30,
	2011			2010		2011			2010
Operating revenues	$	11		$	28	$	59		$	77
Costs and expenses	5			18		46			73
Loss on impairment (a)	4			—		4			2
Income from discontinued operations before income tax expense	2			10		9			2
Gain (loss) on disposal of discontinued operations, net	(4		)	—		169			—
Income tax benefit (expense)	(5		)	5		(7		)	23
Income (loss) from discontinued operations, net of tax	$	(7	)	$	15	$	171		$	25

(a)In the three and nine months ended September 30, 2011, we recognized a loss on impairment of the oil and gas properties since the carrying amount of the properties exceeded the estimated fair value less costs to sell the properties.  We estimated fair value based on unobservable inputs that require significant judgment for which there is little or no market data, including non-binding price quotes from unaffiliated parties.  In the nine months ended September 30, 2010, we recognized a loss on impairment of goodwill associated with the oil and gas properties reporting unit.

Assets and liabilities of discontinued operations

	September 30, 2011		December 31, 2010
Assets
Oil and gas properties, net	$	54	$	—
Other related assets	9		—
Assets held for sale	$	63	$	—
Accounts receivable	$	13	$	22
Other assets	1		17
Other current assets	$	14	$	39
Rig and related equipment, net	$	—	$	86
Oil and gas properties, net	—		53
Other assets	$	—	$	139
Liabilities
Accounts payable	$	13	$	15
Other liabilities	31		13
Other current liabilities	$	44	$	28
Asset retirement obligation	$	—	$	9
Deferred taxes	—		19
Other long-term liabilities	$	—	$	28