Inventories (Tables)

3 Months Ended

Mar. 31, 2014

Inventory Disclosure [Abstract]

Inventories

The cost of the remaining inventory was recorded on the average cost method. Inventories consisted of the following:

Millions of dollars	March 31, 2014		December 31, 2013
Finished products and parts	$	2,509	$	2,445
Raw materials and supplies	744		720
Work in process	162		140
Total	$	3,415	$	3,305