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Schedule II - (Notes to Condensed Financial Statements) (Detail) (USD $) In Millions, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Fair value of securities pledged as collateral | $ 735 | $ 820 |
Securities posted as collateral to derivative counterparties | 42 | 0 |
National Public Finance Guarantee Holdings, Inc. [Member] |  |  |
Dividends from subsidiaries | 214 |  |
Optinuity Alliance Resource Corporation [Member] |  |  |
Dividends from subsidiaries | 2 | 53 | 38
CapMAC Holdings Inc. [Member] |  |  |
Dividends from subsidiaries | 3 |  |
MBIA Asset Finance, LLC [Member] |  |  |
Dividends from subsidiaries |  | 6 |
Euro Asset Acquisition Limited [Member] |  |  |
Dividends from subsidiaries |  | 1 | 8
MBIA Inc General Corporate Purposes [Member] |  |  |
Liquid assets | 307 | 170 |
MBIA Inc. [Member] |  |  |
Liquid assets | 359 | 239 |
Fair value of securities pledged as collateral | 270 | 318 |
Securities posted as collateral to derivative counterparties | 42 | 0 |
Mbia Inc Not Pledged As Collateral [Member] |  |  |
Liquid assets | 52 |  |
Fair Value Of The Collateral Pledged By MBIA Inc [Member] | MBIA Inc. [Member] |  |  |
Money market securities pledged as collateral under investment agreements | $ 22 | $ 144 |

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- Definition This element represents disclosure of the aggregate cash dividends paid to the entity by consolidated subsidiaries. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 235 -Section S99 -Paragraph 2 -Subparagraph (SX 210.9-06) -URI http://asc.fasb.org/extlink&oid=6882215&loc=d3e537971-122884 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 06 -Article 9 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph b -Article 12 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04.(b)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690 + Details
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- Definition Amount of right to receive securities collateral under master netting arrangements that have not been offset against derivative liabilities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=28370219&loc=SL20226016-175313 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (d)(2) -URI http://asc.fasb.org/extlink&oid=20225523&loc=SL20225862-175312 + Details
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- Definition Fair value of financial instrument held by the entity for its own account (proprietary securities) for trading or investment purposes that are carried at fair value and pledged to counterparties as collateral for financing transactions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 30 -Section 50 -Paragraph 1A -Subparagraph (b)(1)(i) -URI http://asc.fasb.org/extlink&oid=7523297&loc=SL6224234-111729 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6467456&loc=d3e113888-111728 + Details
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