XML 72 R14.htm IDEA: XBRL DOCUMENT v2.4.0.8
Asset Retirement Obligations (Notes)
 9 Months Ended
Sep. 30, 2014
Asset Retirement Obligation Disclosure [Abstract]  
Asset Retirement Obligations
ASSET RETIREMENT OBLIGATIONS

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