Goodwill (Tables)

12 Months Ended

Dec. 31, 2013

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill [Table Text Block]

The change in the carrying amount of goodwill for the fiscal years ended December 31, 2013 and 2012 is as follows:

	2013		2012
	(In millions)
Balance as of January 1	$	2,018	$	2,020
Goodwill attributable to sale of Unconventional Gas Production business	—		(2		)
Balance at December 31	$	2,018	$	2,018