Inventories (Tables)

9 Months Ended

Sep. 30, 2017

Inventories

Schedule of inventories

Inventories as of September 30, 2017, and December 31, 2016, consisted of the following (in millions):

	2017			2016
Raw materials	$	74		$	65
Materials and supplies	449			446
Finished goods	519			395
	1,042			906
Revaluation to LIFO	(35		)	(40		)
Total	$	1,007		$	866