Inventories (Tables)

9 Months Ended

Sep. 30, 2015

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	September 30, 2015		December 31, 2014
Finished products and parts	$	1,965	$	2,606
Raw materials and supplies	584		754
Work in process	143		211
Total	$	2,692	$	3,571