v2.3.0.15
Asset Retirement Obligations (Tables)
9 Months Ended
Sep. 30, 2011
Asset Retirement Obligations 
Schedule Of Asset Retirement Obligations

 

Nine Months

Ended September 30,

 

2011

2010

 

(In millions)

Asset retirement obligations as of beginning of period

$         1,497

$         1,513

  Liabilities incurred

                 38

                 36

  Liabilities settled

                (56)

                (94)

  Revision of estimated obligation

                 19

               194

  Liabilities assumed by others

                 —

             (256)

  Accretion expense on discounted obligation

                 69

                 71

  Foreign currency translation

                (41)

                 10

Asset retirement obligations as of end of period

           1,526

           1,474

Less current portion

                 66

                 80

Asset retirement obligations, long-term

$         1,460

$         1,394