Other Property and Equipment (Tables)

9 Months Ended

Sep. 30, 2014

Gain (Loss) on Disposition of Property Plant Equipment [Abstract]

Property, Plant and Equipment, Schedule of Significant Acquisitions and Disposals [Table Text Block]

A summary by asset class of (gains) or losses on sales of fixed assets for the Current Quarter, the Prior Quarter, the Current Period and the Prior Period is as follows:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2014			2013			2014			2013
	($ in millions)
Natural gas compressors	$	(75	)	$	—		$	(195	)	$	—
Gathering systems and treating plants	(5		)	(132		)	8			(311		)
Oilfield services equipment	—			—			(7		)	1
Buildings and land	(6		)	1			(5		)	24
Other	—			(1		)	(2		)	(4		)
Total net gains on sales of fixed assets	$	(86	)	$	(132	)	$	(201	)	$	(290	)

Disclosure of Long Lived Assets Held-for-Sale [Table Text Block]

A summary of the assets held for sale on our condensed consolidated balance sheets as of September 30, 2014 and December 31, 2013 is detailed below.

	September 30, 2014		December 31, 2013
	($ in millions)
Buildings and land, net of accumulated depreciation	$	101	$	405
Compressors, net of accumulated depreciation	—		285
Oilfield services equipment, net of accumulated depreciation	—		29
Gathering systems and treating plants, net of accumulated depreciation	—		11
Property and equipment held for sale, net	$	101	$	730