Restructuring Restructuring and Cost Reduction Programs (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2018	Dec. 31, 2017
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	$ 27
Restructuring Reserve	7	$ 17
Restructuring expense	5
Payments for Restructuring	(15)
Restructuring and Related Cost, Cost Incurred to Date	25
Epoxy, Phenolic and Coating Resins
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	14
Restructuring Reserve	2	11
Restructuring expense	1
Payments for Restructuring	(10)
Restructuring and Related Cost, Cost Incurred to Date	13
Forest Products Resins
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	9
Restructuring Reserve	3	3
Restructuring expense	3
Payments for Restructuring	(3)
Restructuring and Related Cost, Cost Incurred to Date	8
Corporate and Other [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	4
Restructuring Reserve	2	$ 3
Restructuring expense	1
Payments for Restructuring	(2)
Restructuring and Related Cost, Cost Incurred to Date	$ 4