Asset Retirement Obligations (Tables)

9 Months Ended

Sep. 30, 2014

Asset Retirement Obligation Disclosure [Abstract]

Schedule of Change in Asset Retirement Obligation [Table Text Block]

A reconciliation of the asset retirement obligations for the nine months ended September 30, 2014 follows:

	(In millions)
Asset retirement obligations at December 31, 2013	$	1,827
Accretion	84
Liabilities incurred	11
Liabilities settled	(5		)
Revision in estimated cash flows	(6		)
Asset retirement obligations at September 30, 2014	$	1,911