Guarantor/Non-Guarantor Subsidiary Financial Informa GuarantorNonguarantor Subsidiary Level 4 - (Details) - Balance Sheet - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents (including restricted cash)	$ 173	$ 228
Accounts receivable	338	324
Raw materials and work in process	157	144
Finished goods	277	258
Deferred income taxes	33	33
Other current assets	55	60
Total current assets	1,033	1,047
Investment in unconsolidated entities	19	18
Deferred income taxes	13	14
Other long-term assets	23	27
Property, Plant and Equipment, Net	1,114	1,152
Goodwill	216	218
Intangible assets, net	381	408
Total assets	2,799	2,884
Current liabilities:
Trade payables	221	223
Long-term Debt, Current Maturities	37	38
Taxes Payable, Current	4	7
Deferred income taxes	16	18
Accrued Salaries, Current	46	57
Accrued expenses and other liabilities	77	82
Total current liabilities	413	436
Long-term debt	1,174	1,163
Deferred income taxes	100	98
Total liabilities	2,081	2,115
Total deficit	718	769
Total liabilities and equity (deficit)	2,799	2,884
Parent [Member]
Current assets:
Cash and cash equivalents (including restricted cash)	35	78
Accounts receivable	0	0
Due from affiliates	0	0
Raw materials and work in process	0	0
Finished goods	0	0
Deferred income taxes	0	0
Other current assets	0	0
Total current assets	35	78
Investment in unconsolidated entities	1,760	1,852
Deferred income taxes	0	0
Other long-term assets	0	0
Due From Intercompany Borrowing, Noncurrent	129	92
Property, Plant and Equipment, Net	0	0
Goodwill	0	0
Intangible assets, net	0	0
Total assets	1,924	2,022
Current liabilities:
Trade payables	0	9
Due to affiliates	0	0
Long-term Debt, Current Maturities	0	4
Interest Payable	12	11
Taxes Payable, Current	0	0
Deferred income taxes	0	0
Accrued Salaries, Current	0	0
Accrued expenses and other liabilities	0	1
Total current liabilities	12	25
Long-term debt	1,174	1,163
Due To Intercompay Borrowing, Noncurrent	21	63
Accumulated losses of unconsolidated subsidiaries in excess of investment		0
Pension and Other Postretirement and Postemployment Benefit Plans, Liabilities	0	0
Deferred income taxes	0	0
Other Liabilities, Noncurrent	0	2
Total liabilities	1,207	1,253
Total deficit	717	769
Total liabilities and equity (deficit)	1,924	2,022
Guarantor subsidiaries [Member]
Current assets:
Cash and cash equivalents (including restricted cash)	1	10
Accounts receivable	92	92
Due from affiliates	95	73
Raw materials and work in process	79	65
Finished goods	121	123
Deferred income taxes	0	28
Other current assets	21	26
Total current assets	409	417
Investment in unconsolidated entities	340	0
Deferred income taxes	0	0
Other long-term assets	4	10
Due From Intercompany Borrowing, Noncurrent	1,042	1,766
Property, Plant and Equipment, Net	526	528
Goodwill	105	104
Intangible assets, net	157	163
Total assets	2,583	2,988
Current liabilities:
Trade payables	62	80
Due to affiliates	33	26
Long-term Debt, Current Maturities	0	0
Interest Payable	0	0
Taxes Payable, Current	0	0
Deferred income taxes	0	0
Accrued Salaries, Current	24	35
Accrued expenses and other liabilities	28	28
Total current liabilities	147	169
Long-term debt	0	0
Due To Intercompay Borrowing, Noncurrent	477	475
Accumulated losses of unconsolidated subsidiaries in excess of investment		258
Pension and Other Postretirement and Postemployment Benefit Plans, Liabilities	185	191
Deferred income taxes	0	28
Other Liabilities, Noncurrent	14	15
Total liabilities	823	1,136
Total deficit	1,760	1,852
Total liabilities and equity (deficit)	2,583	2,988
Non-guarantor subsidiaries [Member]
Current assets:
Cash and cash equivalents (including restricted cash)	136	140
Accounts receivable	246	232
Due from affiliates	33	25
Raw materials and work in process	78	79
Finished goods	156	135
Deferred income taxes	33	5
Other current assets	34	34
Total current assets	716	650
Investment in unconsolidated entities	19	18
Deferred income taxes	13	14
Other long-term assets	19	17
Due From Intercompany Borrowing, Noncurrent	27	52
Property, Plant and Equipment, Net	588	624
Goodwill	111	114
Intangible assets, net	224	245
Total assets	1,717	1,734
Current liabilities:
Trade payables	159	134
Due to affiliates	95	72
Long-term Debt, Current Maturities	37	34
Interest Payable	0	0
Taxes Payable, Current	4	7
Deferred income taxes	16	18
Accrued Salaries, Current	22	22
Accrued expenses and other liabilities	49	53
Total current liabilities	382	340
Long-term debt	0	0
Due To Intercompay Borrowing, Noncurrent	700	1,372
Accumulated losses of unconsolidated subsidiaries in excess of investment		0
Pension and Other Postretirement and Postemployment Benefit Plans, Liabilities	154	161
Deferred income taxes	100	70
Other Liabilities, Noncurrent	41	49
Total liabilities	1,377	1,992
Total deficit	340	(258)
Total liabilities and equity (deficit)	1,717	1,734
Eliminations [Member]
Current assets:
Cash and cash equivalents (including restricted cash)	0	0
Accounts receivable	0	0
Due from affiliates	(128)	(98)
Raw materials and work in process	0	0
Finished goods	0	0
Deferred income taxes	0	0
Other current assets	0	0
Total current assets	(128)	(98)
Investment in unconsolidated entities	(2,100)	(1,852)
Deferred income taxes	0	0
Other long-term assets	0	0
Due From Intercompany Borrowing, Noncurrent	(1,198)	(1,910)
Property, Plant and Equipment, Net	0	0
Goodwill	0	0
Intangible assets, net	0	0
Total assets	(3,426)	(3,860)
Current liabilities:
Trade payables	0	0
Due to affiliates	(128)	(98)
Long-term Debt, Current Maturities	0	0
Interest Payable	0	0
Taxes Payable, Current	0	0
Deferred income taxes	0	0
Accrued Salaries, Current	0	0
Accrued expenses and other liabilities	0	0
Total current liabilities	(128)	(98)
Long-term debt	0	0
Due To Intercompay Borrowing, Noncurrent	(1,198)	(1,910)
Accumulated losses of unconsolidated subsidiaries in excess of investment		(258)
Pension and Other Postretirement and Postemployment Benefit Plans, Liabilities	0	0
Deferred income taxes	0	0
Other Liabilities, Noncurrent	0	0
Total liabilities	(1,326)	(2,266)
Total deficit	(2,100)	(1,594)
Total liabilities and equity (deficit)	(3,426)	(3,860)
MPM Inc [Member]
Current assets:
Cash and cash equivalents (including restricted cash)	172	228
Accounts receivable	338	324
Due from affiliates	0	0
Raw materials and work in process	157	144
Finished goods	277	258
Deferred income taxes	33	33
Other current assets	55	60
Total current assets	1,032	1,047
Investment in unconsolidated entities	19	18
Deferred income taxes	13	14
Other long-term assets	23	27
Due From Intercompany Borrowing, Noncurrent	0	0
Property, Plant and Equipment, Net	1,114	1,152
Goodwill	216	218
Intangible assets, net	381	408
Total assets	2,798	2,884
Current liabilities:
Trade payables	221	223
Due to affiliates	0	0
Long-term Debt, Current Maturities	37	38
Interest Payable	12	11
Taxes Payable, Current	4	7
Deferred income taxes	16	18
Accrued Salaries, Current	46	57
Accrued expenses and other liabilities	77	82
Total current liabilities	413	436
Long-term debt	1,174	1,163
Due To Intercompay Borrowing, Noncurrent	0	0
Accumulated losses of unconsolidated subsidiaries in excess of investment		0
Pension and Other Postretirement and Postemployment Benefit Plans, Liabilities	339	352
Deferred income taxes	100	98
Other Liabilities, Noncurrent	55	66
Total liabilities	2,081	2,115
Total deficit	717	769
Total liabilities and equity (deficit)	$ 2,798	$ 2,884