Segment Information (Details) - EBITDA by Segment - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Segment Reporting Information [Line Items]
Segment EBITDA	$ 128	$ 100	$ 246	$ 195
Epoxy, Phenolic and Coating Resins
Segment Reporting Information [Line Items]
Segment EBITDA	72	46	142	98
Forest Products Resins
Segment Reporting Information [Line Items]
Segment EBITDA	76	68	143	129
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Segment EBITDA	$ (20)	$ (14)	$ (39)	$ (32)