Annual report pursuant to Section 13 and 15(d)

OTHER NONCURRENT ASSETS

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OTHER NONCURRENT ASSETS
 12 Months Ended
Dec. 31, 2012
OTHER NONCURRENT ASSETS  
OTHER NONCURRENT ASSETS

9. OTHER NONCURRENT ASSETS

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

 
   December 31,  
 
   2012   2011  

Pension assets

   $ 1   $ 100  

Debt issuance costs

     29     31  

Capitalized turnaround costs

     127     141  

Spare parts inventory

     93     89  

Catalyst assets

     25     23  

Deposits

     33     31  

Other

     58     67  
           

Total

   $ 366   $ 482  
           

        Amortization expense of catalyst assets for the years ended December 31, 2012, 2011 and 2010 was $10 million, $12 million and $12 million, respectively.