Significant Accounting Policies (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Jan. 01, 2018	Dec. 31, 2017	Dec. 31, 2016
Net sales	$ 995	$ 912	$ 1,941	$ 1,782
Cost of sales	829	778	1,618	1,515
Inventory, Net					$ 210
Restricted Cash and Cash Equivalents, Current	16		16			$ 18
Net cash (used in) provided by investing activities			7	(53)
Effect of exchange rates on cash and cash equivalents			(3)	5
Change in cash and cash equivalents			15	(68)
Restricted Cash		18		18			$ 17
Cash and cash equivalents (including restricted cash of $0 and $16, respectively)	130	128	130	128		115	196
Other current assets	62		62		56	44
Accumulated deficit	(2,998)		(2,998)		$ (2,963)	(2,964)
Gross profit	166	134	323	267
Finished and in-process goods	245		245			221
Selling, general and administrative expense	77	77	159	156
Operating Income (Loss)	73	38	149	91
Other non-operating expense (income), net	8	(7)	7	(5)
Epoxy, Phenolic and Coating Resins
Net sales	564	517	1,104	1,009
Forest Products Resins
Net sales	431	395	837	773
Previous Accounting Guidance [Member]
Increase (Decrease) in Restricted Cash				1
Net cash (used in) provided by investing activities				(52)
Effect of exchange rates on cash and cash equivalents				3
Change in cash and cash equivalents				(69)
Cash and Cash Equivalents, at Carrying Value		110		110			$ 179
Previous Accounting Guidance [Member]
Net sales	995		1,940
Cost of sales	830		1,619
Inventory, Net	254		254
Other assets, current under previous accounting guidance	50		50
Accumulated deficit under previous accounting guidance	(3,001)		(3,001)
Gross profit	165		321
Selling, general and administrative expense		75		152
Operating Income (Loss)		40		95
Other non-operating expense (income), net		5		1
Adjustments for New Accounting Pronouncement [Member]
Contract with Customer, Asset, Net	12		12
Net sales	0		1
Cost of sales	(1)		(1)
Inventory, Net	(9)		(9)			(11)
Increase (Decrease) in Restricted Cash				(1)
Effect of exchange rates on cash and cash equivalents				2
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect				1
Other current assets						12
Accumulated deficit	3		3			$ 1
Gross profit	$ 1		$ 2
Selling, general and administrative expense		2		4
New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Operating Results		(2)		(4)
Other non-operating expense (income), net		$ 2		$ 4