Other Property and Equipment (Tables)

12 Months Ended

Dec. 31, 2013

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment [Table Text Block]

A summary of other property and equipment held for use and the useful lives thereof is as follows:

	December 31,						Useful
	2013			2012			Life
	($ in millions)						(in years)
Oilfield services equipment	$	2,192		$	2,130		3 - 15
Buildings and improvements	1,433			1,580			10 - 39
Natural gas compressors	368			505			3 - 20
Land	212			515			—
Other	1,190			1,178			2 - 20
Total other property and equipment, at cost	5,395			5,908
Less: accumulated depreciation	(1,584		)	(1,293		)
Total other property and equipment, net	$	3,811		$	4,615

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 years ended December 31, 2013, 2012 and 2011 is as follows:

	Years Ended December 31,
	2013			2012			2011
	($ in millions)
Gathering systems and treating plants	$	(326	)	$	(286	)	$	(440	)
Drilling rigs and equipment	2			10			1
Buildings and land	27			7			2
Other	(5		)	2			—
Total net gains on sales of fixed assets	$	(302	)	$	(267	)	$	(437	)

Schedule Of Assets-held-for Sale [Table Text Block]

A summary of the assets and liabilities held for sale on our consolidated balance sheets as of December 31, 2013 and 2012 is detailed below.

	December 31,
	2013		2012
	($ in millions)
Accounts receivable	$	—	$	4
Current assets held for sale	$	—	$	4
Natural gas gathering systems and treating plants, net of accumulated depreciation	$	11	$	352
Oilfield services equipment, net of accumulated depreciation	29		27
Compressors, net of accumulated depreciation	285		—
Buildings and land, net of accumulated depreciation	405		255
Property and equipment held for sale, net	$	730	$	634
Accounts payable	$	—	$	4
Accrued liabilities	—		17
Current liabilities held for sale	$	—	$	21