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Asset Retirement Obligations (Tables)
9 Months Ended
Sep. 30, 2014
Asset Retirement Obligations [Abstract]  
Summary Of Changes In Asset Retirement Obligations

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Nine Months Ended September 30,

 

 

2014

 

2013

 

 

 

 

 

 

 

 

 

 

(In millions)

 

Asset retirement obligations as of beginning of period

$

2,228 

 

$

2,095 

 

Liabilities incurred

 

79 

 

 

88 

 

Liabilities settled

 

(38)

 

 

(46)

 

Revision of estimated obligation

 

75 

 

 

104 

 

Liabilities assumed by others

 

(949)

 

 

(15)

 

Accretion expense on discounted obligation

 

70 

 

 

86 

 

Foreign currency translation adjustment

 

(55)

 

 

(44)

 

Asset retirement obligations as of end of period

 

1,410 

 

 

2,268 

 

Less current portion

 

62 

 

 

107 

 

Asset retirement obligations, long-term

$

1,348 

 

$

2,161