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Asset Retirement Obligations (Tables)
9 Months Ended
Sep. 30, 2015
Asset Retirement Obligations [Abstract]  
Summary Of Changes In Asset Retirement Obligations

 

 

Nine Months Ended September 30,

 

 

2015

 

2014

 

 

 

 

 

 

 

 

 

(Millions)

Asset retirement obligations as of beginning of period

 

$

1,399 

 

$

2,228 

Liabilities incurred

 

 

46 

 

 

79 

Liabilities settled and divested (1)

 

 

(48)

 

 

(987)

Revision of estimated obligation

 

 

62 

 

 

75 

Accretion expense on discounted obligation

 

 

56 

 

 

70 

Foreign currency translation adjustment

 

 

(80)

 

 

(55)

Asset retirement obligations as of end of period

 

 

1,435 

 

 

1,410 

Less current portion

 

 

58 

 

 

62 

Asset retirement obligations, long-term

 

$

1,377 

 

$

1,348 

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(1)    During the first nine months of 2014, Devon reduced its asset retirement obligations by $949 million related to its asset divestiture program discussed in Note 2.