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Inventories (Tables)
12 Months Ended
Dec. 31, 2013
Inventory Disclosure [Abstract]  
Inventories
The cost of the remaining inventory was recorded on the average cost method. Inventories consisted of the following:
 
December 31
Millions of dollars
2013
2012
Finished products and parts
$
2,445

$
2,264

Raw materials and supplies
720

793

Work in process
140

129

Total
$
3,305

$
3,186