Segment Information (Details) - Revenues by Segment - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Segment Reporting Information [Line Items]
Net sales	$ 886	$ 946
Epoxy, Phenolic and Coating Resins
Segment Reporting Information [Line Items]
Net sales	491	540
Forest Products Resins
Segment Reporting Information [Line Items]
Net sales	395	406
North America
Segment Reporting Information [Line Items]
Net sales	469	501
North America | Epoxy, Phenolic and Coating Resins
Segment Reporting Information [Line Items]
Net sales	209	233
North America | Forest Products Resins
Segment Reporting Information [Line Items]
Net sales	260	268
Europe
Segment Reporting Information [Line Items]
Net sales	266	299
Europe | Epoxy, Phenolic and Coating Resins
Segment Reporting Information [Line Items]
Net sales	219	245
Europe | Forest Products Resins
Segment Reporting Information [Line Items]
Net sales	47	54
Asia Pacific
Segment Reporting Information [Line Items]
Net sales	96	92
Asia Pacific | Epoxy, Phenolic and Coating Resins
Segment Reporting Information [Line Items]
Net sales	63	61
Asia Pacific | Forest Products Resins
Segment Reporting Information [Line Items]
Net sales	33	31
Latin America
Segment Reporting Information [Line Items]
Net sales	55	54
Latin America | Epoxy, Phenolic and Coating Resins
Segment Reporting Information [Line Items]
Net sales	0	1
Latin America | Forest Products Resins
Segment Reporting Information [Line Items]
Net sales	$ 55	$ 53