Segment Information Level 4 (Details) - Revenues by Segment - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Segment Reporting Information [Line Items]
Net Sales to Unaffiliated Customers	$ 946	$ 870
Epoxy, Phenolic and Coating Resins [Member]
Segment Reporting Information [Line Items]
Net Sales to Unaffiliated Customers	540	492
Forest Products Resins [Member]
Segment Reporting Information [Line Items]
Net Sales to Unaffiliated Customers	406	378
North America [Member]
Segment Reporting Information [Line Items]
Net Sales to Unaffiliated Customers	501	452
North America [Member] | Epoxy, Phenolic and Coating Resins [Member]
Segment Reporting Information [Line Items]
Net Sales to Unaffiliated Customers	233	201
North America [Member] | Forest Products Resins [Member]
Segment Reporting Information [Line Items]
Net Sales to Unaffiliated Customers	268	251
Europe [Member]
Segment Reporting Information [Line Items]
Net Sales to Unaffiliated Customers	299	270
Europe [Member] | Epoxy, Phenolic and Coating Resins [Member]
Segment Reporting Information [Line Items]
Net Sales to Unaffiliated Customers	245	222
Europe [Member] | Forest Products Resins [Member]
Segment Reporting Information [Line Items]
Net Sales to Unaffiliated Customers	54	48
Asia Pacific [Member]
Segment Reporting Information [Line Items]
Net Sales to Unaffiliated Customers	92	98
Asia Pacific [Member] | Epoxy, Phenolic and Coating Resins [Member]
Segment Reporting Information [Line Items]
Net Sales to Unaffiliated Customers	61	67
Asia Pacific [Member] | Forest Products Resins [Member]
Segment Reporting Information [Line Items]
Net Sales to Unaffiliated Customers	31	31
Latin America [Member]
Segment Reporting Information [Line Items]
Net Sales to Unaffiliated Customers	54	50
Latin America [Member] | Epoxy, Phenolic and Coating Resins [Member]
Segment Reporting Information [Line Items]
Net Sales to Unaffiliated Customers	1	2
Latin America [Member] | Forest Products Resins [Member]
Segment Reporting Information [Line Items]
Net Sales to Unaffiliated Customers	$ 53	$ 48