Inventories (Tables)

12 Months Ended

Dec. 31, 2017

Inventory, Net [Abstract]

Schedule Of Inventory

Inventories consist of the following at December 31:

	2017		2016
Finished products	$	549	$	501
Feedstock, additives and chemicals	221		217
Materials and supplies	130		83
Inventories	$	900	$	801