Expected Payments to Acquire Business, Gross

No definition available.

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- Definition

Represents the amount of insured contractual payments (principal and interest) outstanding on the underlying insured obligations for financial guaranty contracts, net of ceded contracts.

+ References

No definition available.

+ Details

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- Definition

Represents the number of holding companies in the entity's organizational structure having outstanding public debt.

+ References

No definition available.

+ Details

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- Details

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- Definition

Amount of assets, excluding financial assets and goodwill, that lack physical substance, having a projected indefinite period of benefit, acquired at the acquisition date.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=39739317&loc=d3e4845-128472

+ Details

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

-URI http://asc.fasb.org/extlink&oid=6516133

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 13

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585

+ Details

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- Definition

Amount of statutory capital required to be maintained as of the balance sheet date under prescribed or permitted statutory accounting practices.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 505

-Section 50

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6486098&loc=d3e24708-158529

+ Details

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- Details

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- Details

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- Details

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Business and Basis of Presentation (Details) (USD $)	0 Months Ended	12 Months Ended
Business and Basis of Presentation (Details) (USD $)	Dec. 22, 2014	Dec. 31, 2012	Dec. 31, 2014 Company	Dec. 31, 2013
Business Acquisition [Line Items]
Net par outstanding			$ 609,622,000,000	$ 690,535,000,000
Number of holding companies having public debt outstanding			2
Radian [Member]
Business Acquisition [Line Items]
Expected payments to acquire business in first half of 2015	810,000,000
MAC [Member]
Business Acquisition [Line Items]
Cash paid to acquire entity		91,000,000
Allocation of purchase price to intangible assets other than goodwill		16,000,000
Radian [Member]
Business Acquisition [Line Items]
Qualified statutory capital			1,300,000,000
Public Finance [Member]
Business Acquisition [Line Items]
Net par outstanding			553,612,000,000	610,011,000,000
Public Finance [Member] \| Radian [Member]
Business Acquisition [Line Items]
Net par outstanding			10,000,000,000
Structured Finance [Member]
Business Acquisition [Line Items]
Net par outstanding			56,010,000,000	80,524,000,000
Structured Finance [Member] \| Radian [Member]
Business Acquisition [Line Items]
Net par outstanding			$ 8,000,000,000