Segment Information (Details) - EBITDA by Segment - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Segment Reporting Information [Line Items]
Segment EBITDA	$ 112	$ 128	$ 215	$ 246
Epoxy, Phenolic and Coating Resins
Segment Reporting Information [Line Items]
Segment EBITDA	59	72	111	142
Forest Products Resins
Segment Reporting Information [Line Items]
Segment EBITDA	66	76	134	143
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Segment EBITDA	$ (13)	$ (20)	$ (30)	$ (39)