Condensed Consolidated Statements of Operations - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Net sales	$ 628	$ 892	$ 1,454	$ 1,778
Cost of Goods and Service, Excluding Depreciation, Depletion, and Amortization	528	735	1,208	1,462
Selling, general and administrative expense (see Note 2)	55	57	130	145
Depreciation and amortization	56	26	114	52
Asset impairments	0	0	16	0
Business realignment costs	18	11	39	15
Other operating expense, net	(4)	(8)	(11)	(16)
Operating (loss) income	(33)	55	(64)	88
Interest expense, net	(25)	(9)	(51)	(89)
Other non-operating income, net	4	10	4	11
Loss before income tax and earnings from unconsolidated entities	(54)	(100)	(111)	(146)
Income tax (benefit) expense	(11)	8	(8)	15
Loss before earnings from unconsolidated entities	(43)	(108)	(103)	(161)
Earnings from unconsolidated entities, net of taxes	1	1	2	2
Net loss	(42)	(108)	(101)	(160)
Net income attributable to noncontrolling interest	0	1	0	1
Net loss attributable to Hexion Inc.	(42)	(107)	(101)	(159)
Reorganization Items	0	156	0	156
Pension Benefits
Net expense (benefit)	1	1	1	1
Accumulated Deficit [Member]
Net loss	$ (42)	$ (108)	$ (101)	$ (160)