Segment Information Level 4 (Details) - EBITDA by Segment - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Segment Reporting Information [Line Items]
Segment EBITDA [Line Items]	$ 96	$ 112	$ 291	$ 364
Epoxy, Phenolic and Coating Resins [Member]
Segment Reporting Information [Line Items]
Segment EBITDA [Line Items]	45	64	143	230
Forest Products Resins [Member]
Segment Reporting Information [Line Items]
Segment EBITDA [Line Items]	66	65	195	184
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Segment EBITDA [Line Items]	$ (15)	$ (17)	$ (47)	$ (50)