Inventories (Tables)

9 Months Ended

Sep. 30, 2015

Inventories [Abstract]

Schedule of inventory, current [Table Text Block]

Inventories consisted of the following components:

		September 30,		December 31,
Millions of dollars		2015		2014
Finished goods		$	2,649	$	3,011
Work-in-process			168		212
Raw materials and supplies			1,321		1,294
	Total inventories	$	4,138	$	4,517