Registration of securities issued in business combination transactions

OTHER NONCURRENT ASSETS

v2.4.0.8
OTHER NONCURRENT ASSETS
 12 Months Ended
Dec. 31, 2013
OTHER NONCURRENT ASSETS  
OTHER NONCURRENT ASSETS

9. OTHER NONCURRENT ASSETS

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

 
   2013   2012  

Pension assets

   $ 20   $ 1  

Debt issuance costs

     32     29  

Capitalized turnaround costs

     192     127  

Spare parts inventory

     100     93  

Catalyst assets

     26     25  

Deposits

     41     33  

Other

     47     58  
           
​ ​ ​ ​ ​ ​ ​ ​

Total

   $ 458   $ 366  
           
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        Amortization expense of catalyst assets for the years ended December 31, 2013, 2012 and 2011 was $12 million, $10 million and $12 million, respectively.