Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions		3 Months Ended		6 Months Ended	9 Months Ended
	Jul. 01, 2019	Sep. 30, 2019	Sep. 30, 2018	Jun. 30, 2019	Sep. 30, 2018
Net (loss) income	$ 3,054	$ (43)	$ (18)	$ 2,895	$ (52)
Other comprehensive (loss) income, net of tax:
Foreign currency translation adjustments	0	(16)	(6)	(8)	(8)
Other comprehensive loss	0	(16)	(6)	(8)	(8)
Comprehensive (loss) income	3,054	(59)	(24)	2,887	(60)
Net income attributable to noncontrolling interest	0	0	0	1	1
Comprehensive (loss) income attributable to Hexion Inc.	$ 3,054	$ (59)	$ (24)	$ 2,886	$ (61)