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ACCOUNTS RECEIVABLE AND OTHER (Tables)
3 Months Ended
Mar. 31, 2012
ACCOUNTS RECEIVABLE AND OTHER  
Schedule of accounts receivable and other
 
(unaudited)
 
March 31,
   
December 31,
 
(millions of dollars)
 
2012
   
2011
 
Accounts receivable
    7       8  
Inventory
    1       1  
      8       9