Related Party Transactions Level 4 (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Apollo Affiliates and Other Related Parties [Member]
Related Party Transaction [Line Items]
Revenue from Related Parties	$ 1	$ 1
Accounts Receivable, Related Parties	1		$ 1
Apollo [Member]
Related Party Transaction [Line Items]
Annual management consulting fee	$ 3	$ 3
Annual management consulting fee percentage	2.00%	2.00%
Related Party Costs	$ 1
Subsidiary of Common Parent [Member]
Related Party Transaction [Line Items]
Shared Services Costs Incurred by MPM	7	$ 14
Momentive Performance Materials Inc. [Member]
Related Party Transaction [Line Items]
Accounts Receivable shared services costs	2		3
Revenue from Related Parties	1	1
Related Party Transaction, Purchases from Related Party	7	5
Revenues from distribution agreement	1	1
Accounts Receivable, Related Parties	1		0
Accounts Payable, Related Parties	3		2
Other joint ventures unconsolidated [Member]
Related Party Transaction [Line Items]
Revenue from Related Parties	3	4
Accounts Receivable, Related Parties	5		6
Accounts Payable, Related Parties	1		1
Purchases from JV	2	4
Russian Joint Venture [Member]
Related Party Transaction [Line Items]
Loans and Leases Receivable, Related Parties	7		$ 6
Hexion Inc. [Member]
Related Party Transaction [Line Items]
Shared Services Costs Incurred by Hexion	8	22
Shared Services Net Billings - Hexion to MPM	$ 3	$ 9

Accounts Receivable shared services costs

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- Definition

Annual management consulting fee

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- Definition

Annual management consulting fee percentage

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- Definition

Purchases from JV

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- Definition

Revenues from distribution agreement

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- Definition

Shared Services Costs Incurred by MPM

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- Definition

Shared Services Costs Incurred by Hexion

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- Definition

Shared Services Net Billings - Hexion to MPM

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- Definition

Amount for accounts payable to related parties.

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- Definition

For an unclassified balance sheet, amount of receivables arising from transactions with related parties.

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- Definition

For an unclassified balance sheet, reflects the carrying amount of unpaid loan amounts due from related parties at the balance sheet date.

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- Definition

Direct costs arising from transactions with related parties who are not affiliates or joint Ventures. These costs are categorized as cost of goods sold.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Purchases during the period (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

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- Definition

Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.

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