Segment Information (Details) - EBITDA by Segment - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Segment Reporting Information [Line Items]
Segment EBITDA	$ 128	$ 96	$ 374	$ 291
Epoxy, Phenolic and Coating Resins
Segment Reporting Information [Line Items]
Segment EBITDA	66	45	208	143
Forest Products Resins
Segment Reporting Information [Line Items]
Segment EBITDA	76	66	219	195
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Segment EBITDA	$ (14)	$ (15)	$ (53)	$ (47)