Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Net Income (Loss)	$ 12	$ (106)	$ (14)	$ (162)
Other comprehensive income (loss), net of tax:
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	6	1	(37)	(14)
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefits, Net of Tax	(2)	0	(2)	1
Other comprehensive loss	4	1	(39)	(13)
Comprehensive loss	16	(105)	(53)	(175)
MPM Inc [Member]
Net Income (Loss)	12	(106)	(14)	(162)
Other comprehensive income (loss), net of tax:
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	6	1	(37)	(14)
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefits, Net of Tax	(2)	0	(2)	1
Other comprehensive loss	4	1	(39)	(13)
Comprehensive loss	$ 16	$ (105)	$ (53)	$ (175)