Annual report pursuant to Section 13 and 15(d)

OTHER NONCURRENT ASSETS

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OTHER NONCURRENT ASSETS
 12 Months Ended
Dec. 31, 2011
OTHER NONCURRENT ASSETS  
OTHER NONCURRENT ASSETS

9. OTHER NONCURRENT ASSETS

        Other noncurrent assets consisted of the following (dollars in millions):

 
   December 31,  
 
   2011   2010  

Pension assets

   $ 100   $ 75  

Debt issuance costs

     31     33  

Capitalized turnaround costs

     141     164  

Spare parts inventory

     89     81  

Catalyst assets

     23     21  

Deposits

     31     55  

Other

     67     66  
           

Total

   $ 482   $ 495  
           

        Amortization expense of catalyst assets for the years ended December 31, 2011, 2010 and 2009 was $12 million, $12 million and $14 million, respectively.