Related Party Transactions Level 4 (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2011
Related Party Transaction [Line Items]
Note receivable from parent	$ 24		$ 24		$ 24
Apollo [Member]
Related Party Transaction [Line Items]
Annual management consulting fee			3
Annual management consulting fee percentage			2.00%
Management Consulting Fees	1		2
Interest rate on second-priority senior secured notes due 2020			9.00%
Second-priority senior secured notes due 2020	134		134
Huntsman settlement payment			225
Proceeds on Huntsman insurance recoveries			10
Fees related to the Huntsman settlement			2
Reimbursement of expenses incurred to obtain Huntsman insurance recoveries			1
Apollo share of insurance recoveries			7
Momentive Performance Materials Inc. [Member]
Related Party Transaction [Line Items]
Shared Services Costs Incurred by MPM			75	86
Realized Cost Savings From Shared Services			12	14
Shared Services Cost Allocation Percentage	49.00%		49.00%
Due from Related Parties	7		7		15
Due to Related Parties	1		1		3
Apollo Affiliates and Other Related Parties [Member]
Related Party Transaction [Line Items]
Due from Related Parties	3		3		1
Due to Related Parties	1		1		1
Issued preferred units	28,785,935		28,785,935
Warrants issued to purchase common units	28,785,935		28,785,935
Purchase price of preferred units			205
Initial face amount of the Preferred Equity Issuance			200
Partial proceeds from the Preferred Equity Issuance received			189
Proceeds from Issuance or Sale of Equity			204
Remaining proceeds held in reserve from the Preferred Equity Issuance			16
Net Sales to Related Parties	4		6	1
Purchases From Related Parties	11	14	18	20
MSC Holdings LLC [Member]
Related Party Transaction [Line Items]
Face value of the outstanding paid in kind debt facility			180
Note receivable from parent	24		24
Momentive Performance Materials Holdings LLC [Member]
Related Party Transaction [Line Items]
Due to Related Parties	1		1		3
HAI [Member]
Related Party Transaction [Line Items]
Due from Related Parties	23		23		14
Due to Related Parties	2		2		4
Net Sales to Related Parties	28	48	56	77
Purchases From Related Parties	14	32	24	46
Cash Dividends Declared to Parent Company by Unconsolidated Subsidiaries	3	5	13	5
Dividends Receivable	3		3
Carrying Value of Assets of HAI	50		50		48
Carrying Value of Liabilities of HAI	31		31		21
Russian Joint Venture [Member]
Related Party Transaction [Line Items]
Notes Receivable, Related Parties, Current	2		2		3
Accounts Receivable, Related Parties, Current	3		3		2
Momentive Specialty Chemicals Inc. [Member]
Related Party Transaction [Line Items]
Shared Services Costs Incurred by MSC			79	90
Shared Services Billings - MSC to MPM			9	3
Shared Services Cost Allocation Percentage	51.00%		51.00%
Maximum [Member] | Apollo Affiliates and Other Related Parties [Member]
Related Party Transaction [Line Items]
Net Sales to Related Parties		$ 1