Asset Retirement Obligations (Tables)

6 Months Ended

Jun. 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 six months ended June 30, 2014 follows:

	(In millions)
Asset retirement obligations at December 31, 2013	$	1,827
Accretion	56
Liabilities incurred	9
Liabilities settled	(4		)
Revision in estimated cash flows	(5		)
Asset retirement obligations at June 30, 2014	$	1,883