The aggregate fair value of assets that the entity has agreed to post as collateral for derivative instruments with credit-risk-related contingent features.

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- Definition

Represents the unrealized gain on credit derivatives resulting from tightening of general market spreads as well as a run-off in net par outstanding.

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Represents the maximum collateral amount that the entity could be required to post at current ratings levels for the portion of outstanding credit derivatives with a capped collateral requirement.

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Represents the maximum collateral amount that the entity could be required to post in the case of a ratings downgrade for the portion of outstanding credit derivatives with a capped collateral requirement.

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Represents the notional amount of outstanding credit derivatives that is subject to collateral posting.

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Represents the portion of the notional amount of outstanding credit derivatives subject to collateral posting that is capped at a maximum collateral amount for current ratings levels.

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- Definition

Represents the quoted price of credit derivative contracts expressed in basis points.

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- Definition

Represents the cumulative fair value gain (loss) on credit derivatives as of the balance sheet date, after considering the impact of the entity's credit spreads.

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Represents the cumulative fair value gain (loss) on credit derivatives as of the balance sheet date, before considering the impact of the entity's credit spreads.

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Represents the number of ISDA master agreements under which the counterparty could terminate the credit derivative in the case of a rating downgrade of the entity.

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Represents the number of ISDA master agreements under which the counterparty could terminate the credit derivative in the case of a rating downgrade of the entity to BBB- or Baa3.

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Represents the number of ISDA master agreements under which the counterparty could terminate the credit derivative in the case of a rating downgrade of the entity to BB+ or Ba1.

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Represents the notional amount of credit derivatives that could be terminated by the counterparty if ratings were downgraded.

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Represents the notional amount of credit derivatives that could be terminated by the counterparty if ratings were downgraded to BB+ or Ba1.

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The aggregate fair value of additional assets that would be required to be posted as collateral for derivative instruments with credit-risk-related contingent features if the credit-risk-related contingent features were triggered at the end of the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4H

-Subparagraph (e)

-URI http://asc.fasb.org/extlink&oid=6935481&loc=SL5624258-113959

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-Name Statement of Financial Accounting Standard (FAS)

-Number 133

-Paragraph 44D

-Subparagraph c

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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Fair value as of the balance sheet date of credit risk derivative assets, which includes all such derivative instruments in hedging and non-hedging relationships that are recognized as assets on the balance sheet.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 133

-Paragraph 17

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 10

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6947722&loc=d3e13433-108611

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Fair value as of the balance sheet date of credit risk derivative liabilities, which includes all such derivative instruments in hedging and non-hedging relationships that are recognized as liabilities on the balance sheet.

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Fair value as of the balance sheet date of credit risk derivative assets, net of credit risk derivative liabilities, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized on the balance sheet.

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Financial Guaranty Contracts Accounted for as Credit Derivatives (Details 5) (USD $)	6 Months Ended
	Jun. 30, 2011 RatingAgency RatingCategories Subsidiaries Counterparties Securities Agreements Policies D Markets Companies FiscalQuarters Entities Transactions	Mar. 31, 2011	Dec. 31, 2010	Jun. 30, 2010	Mar. 31, 2010	Dec. 31, 2009
Credit Spread Effect on Credit Derivatives Fair Value
Before considering implication of the Company's credit spreads	$ (5,428,900,000)	$ (5,578,800,000)	$ (5,539,300,000)	$ (5,636,300,000)	$ (5,253,500,000)	$ (5,830,800,000)
After considering implication of the Company's credit spreads	(2,187,500,000)	(2,140,000,000)	(1,869,900,000)	(1,274,900,000)	(1,284,900,000)	(1,542,100,000)
Components of Credit Derivative Assets (Liabilities)
Credit derivative assets	603,867,000		592,898,000
Credit derivative liabilities	(2,791,473,000)		(2,462,831,000)
Net fair value of credit derivatives	(2,187,500,000)		(1,869,900,000)
Other credit derivative disclosures
Gain from tightening of general market spreads as well as a run-off in net par outstanding	102,500,000
Par insured that could be terminated if ratings were downgraded	2,700,000
Number of ISDA master agreements	3
Par insured that could be terminated if ratings were downgraded to BBB- or Baa3	89,000,000
Number of counterparties that could terminate for ratings downgrade to BBB- or Baa3	1
Par insured that could be terminated if ratings were downgraded to BB+ or Ba1	2,600,000,000
Number of counterparties that could terminate for ratings downgrade to BB+ or Ba1	2
Amount of par subject to collateral posting	15,800,000,000
Collateral agreed to be posted	768,600,000
Amount of par subject to collateral for which the amount of collateral is capped	15,200,000,000
Cap on collateral requirement at current ratings levels	635,000,000
Increase to cap on collateral requirement if ratings are downgraded to A+ or A3	50,000,000
Cap on collateral requirement if ratings are downgraded to A+ or A3	$ 685,000,000
AGC
Credit Derivatives
Quoted price of CDS contract (in basis points)	6.34%	7.24%	8.04%	10.10%	7.34%	6.34%
AGM
Credit Derivatives
Quoted price of CDS contract (in basis points)	4.72%	6.60%	6.50%	8.02%	4.68%	5.41%