ASSET RETIREMENT OBLIGATION (Tables)

6 Months Ended

Jun. 30, 2013

Asset Retirement Obligation Disclosure [Abstract]

Asset Retirement Obligation

The following table describes changes to the Company’s asset retirement obligation (ARO) liability for the six-month period ended June 30, 2013:

	(In millions)
Asset retirement obligation at December 31, 2012	$	4,578
Liabilities incurred		251
Liabilities acquired		53
Liabilities settled		(270	)
Accretion expense		130
Revisions in estimated liabilities		11
Asset retirement obligation at June 30, 2013		4,753
Less current portion		(475	)
Asset retirement obligation, long-term	$	4,278