Acquisitions and Divestitures (Tables)

9 Months Ended

Sep. 30, 2015

Business Combinations [Abstract]

Summary of operating results of discontinued operations

Summarized operating results of our discontinued operations were as follows:

	Quarter ended September 30, 2014			Nine months ended September 30, 2014
	(in millions)
Operating revenues	$	14		$	82
Operating expenses
Transportation costs	—			5
Lease operating expense	6			31
Depreciation, depletion and amortization	—			8
Impairment charges(1)	3			18
Other expense	4			17
Total operating expenses	13			79
Loss on sale of assets	(1		)	—
Other (expense) income	(1		)	4
(Loss) income from discontinued operations before income taxes	(1		)	7
Income tax expense	—			4
(Loss) income from discontinued operations, net of tax	$	(1	)	$	3

(1)During the quarter and nine months ended September 30, 2014, we recorded $3 million and $18 million in impairment charges related to the sale of our Brazilian operations.