Restructuring Restructuring and Cost Reduction Programs (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2019	Dec. 31, 2018
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	$ 27
Restructuring Reserve	3	$ 6
Restructuring expense	1
Payments for Restructuring	(4)
Restructuring and Related Cost, Cost Incurred to Date	26
Epoxy, Phenolic and Coating Resins
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	14
Restructuring Reserve	1	2
Restructuring expense	1
Payments for Restructuring	(2)
Restructuring and Related Cost, Cost Incurred to Date	14
Forest Products Resins
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	9
Restructuring Reserve	1	2
Restructuring expense	0
Payments for Restructuring	(1)
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	1	$ 2
Restructuring expense	0
Payments for Restructuring	(1)
Restructuring and Related Cost, Cost Incurred to Date	$ 4