Related Party Transactions Level 4 (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Related Party Transaction [Line Items]
Accounts Receivable shared services costs	$ 2		$ 2
Apollo [Member]
Related Party Transaction [Line Items]
Annual management consulting fee			$ 3
Annual management consulting fee percentage			2.00%
Related Party Costs	1	$ 1	$ 2	$ 2
Subsidiary of Common Parent [Member]
Related Party Transaction [Line Items]
Shared Services Costs Incurred by MPM			31	38
Momentive Performance Materials Inc. [Member]
Related Party Transaction [Line Items]
Accounts Receivable shared services costs					$ 5
Related Party Transaction, Other Revenues from Transactions with Related Party	1	1	1	1
Related Party Transaction, Purchases from Related Party	6	7	18	22
Revenues from distribution agreement	1	1	1	1
Accounts Receivable, Related Parties	0		0		1
Accounts Payable, Related Parties	2		2		2
Apollo Affiliates and Other Related Parties [Member]
Related Party Transaction [Line Items]
Accounts Receivable, Related Parties	1		1		1
Due to Related Parties	0		0		1
Revenue from Related Parties	1	1	3	6
Purchases From Related Parties	0	1	0	1
Other joint ventures unconsolidated [Member]
Related Party Transaction [Line Items]
Accounts Receivable, Related Parties	5		5		7
Due to Related Parties	1		1		1
Revenue from Related Parties	1	4	9	38
Purchases from JV	3	$ 4	10	14
Russian Joint Venture [Member]
Related Party Transaction [Line Items]
Loans and Leases Receivable, Related Parties	6		6		6
Accounts Receivable, Related Parties, Current	$ 2		2		$ 2
Hexion Inc. [Member]
Related Party Transaction [Line Items]
Shared Services Costs Incurred by Hexion			41	50
Shared Services Billings - Hexion to MPM			$ 21	$ 23