Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Net income (loss)	$ (32)	$ (199)	$ (46)	$ (361)
Other comprehensive income (loss), net of tax:
Other comprehensive income (loss), foreign currency transaction and translation adjustment, net of tax	(14)	52	(51)	38
Other comprehensive income (loss), pension and other postretirement benefits, net of tax	0	(22)	(2)	(21)
Other comprehensive loss	(14)	30	(53)	17
Comprehensive loss	(46)	(169)	(99)	(344)
MPM Inc [Member]
Net income (loss)	(31)	(199)	(45)	(361)
Other comprehensive income (loss), net of tax:
Other comprehensive income (loss), foreign currency transaction and translation adjustment, net of tax	(14)	52	(51)	38
Other comprehensive income (loss), pension and other postretirement benefits, net of tax	0	(22)	(2)	(21)
Other comprehensive loss	(14)	30	(53)	17
Comprehensive loss	$ (45)	$ (169)	$ (98)	$ (344)