XML 89 R34.htm IDEA: XBRL DOCUMENT ﻿
v2.3.0.11

Businesses, Developments, Risks And Uncertainties (Details) (Narrative) (USD $) | 6 Months Ended |
--- | --- | ---
Jun. 30, 2011 | Dec. 31, 2010
Loss due to understated pre-tax | $ 207,000,000 |
Statutory capital | 2,900,000,000 | 2,700,000,000
Liquid assets | 1,100,000,000 | 1,200,000,000
Gross Insured Exposure | 5,600,000,000 |
ABS CDO gross par outstanding | 11,200,000,000 |
Book value deficit | 486,000,000 |
Intercompany tax payments | 164,000,000 |
MBIA Insurance Corporation [Member] |  |
Gross Insured Exposure | 3,700,000,000 |
ABS CDOs [Member] |  |
Gross Insured Exposure | 2,700,000,000 |
Statutory losses | 24,700,000,000 |
CRE Loan Pools [Member] |  |
Exclusion from substantial additional losses | 4,000,000,000 |
CDO [Member] |  |
Exclusion from substantial additional losses | 7,000,000,000 |
CMBS [Member] |  |
Exclusion from substantial additional losses | $ 33,500,000,000 |

X
- Definition Abs Cdo Gross Par Outstanding + Details
Name: | mbi_AbsCdoGrossParOutstanding
Namespace Prefix: | mbi
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Asset/Liability Products Segment's deficit of cash, investments and other liquid assets at amortized costs to debt issued to third parties and affiliates at amortized costs. + Details
Name: | mbi_BookValueDeficit
Namespace Prefix: | mbi
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Gross Insured Exposure + Details
Name: | mbi_GrossInsuredExposure
Namespace Prefix: | mbi
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Intercompany Tax Payments + Details
Name: | mbi_IntercompanyTaxPayments
Namespace Prefix: | mbi
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Liquid Assets + Details
Name: | mbi_LiquidAssets
Namespace Prefix: | mbi
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Loss Due To Understated Pre Tax + Details
Name: | mbi_LossDueToUnderstatedPreTax
Namespace Prefix: | mbi
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Statutory Losses + Details
Name: | mbi_StatutoryLosses
Namespace Prefix: | mbi
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Interpretation (FIN) -Number 45 -Paragraph 13 -Subparagraph b -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. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=6851643&loc=d3e12069-110248 + Details
Name: | us-gaap_GuaranteeObligationsMaximumExposure
Namespace Prefix: | us-gaap
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount of statutory capital and surplus (stockholders' equity) as of the balance sheet date using prescribed or permitted statutory accounting practices (rather than GAAP, if different) of the state or country. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.23(c)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6486098&loc=d3e24708-158529 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 60 -Paragraph 60 -Subparagraph h -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. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 94-5 -Paragraph 8, 9 -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. Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 7 -Section 03 -Paragraph 24 -Subparagraph c + Details
Name: | us-gaap_StatutoryAccountingPracticesStatutoryCapitalAndSurplusBalance
Namespace Prefix: | us-gaap
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant