$MBI
MBIA INC Stock $mbi

$mbi Overview Financials Valuation SEC Filings Company Website

2013 Q4 Form 10-K Financial Statement

#000119312515073382 Filed on March 02, 2015

Income Statement

Concept	2013 Q4	2012 Q4	2012
Revenue	$447.0M	$732.0M	$2.435B
YoY Change	-38.93%	-162.72%	-256.39%
Cost Of Revenue			$50.00M
YoY Change			-162.5%
Gross Profit			$2.385B
YoY Change			-261.48%
Gross Profit Margin			97.95%
Selling, General & Admin			$431.0M
YoY Change			16.17%
% of Gross Profit			18.07%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization
YoY Change
% of Gross Profit
Operating Expenses	$96.00M	-$190.0M	$431.0M
YoY Change	-150.53%	2.7%	16.17%
Operating Profit			$1.954B
YoY Change			-205.74%
Interest Expense	-$68.00M	-$83.00M	$284.0M
YoY Change	-18.07%	-9.78%	-5.33%
% of Operating Profit			14.53%
Other Income/Expense, Net
YoY Change
Pretax Income	$294.0M	$839.0M	$1.598B
YoY Change	-64.96%	-178.12%	-171.37%
Income Tax	$162.0M	$203.0M	$364.0M
% Of Pretax Income	55.1%	24.2%	22.78%
Net Earnings	$132.0M	$636.0M	$1.234B
YoY Change	-79.25%	-201.6%	-193.56%
Net Earnings / Revenue	29.53%	86.89%	50.68%
Basic Earnings Per Share			$6.36
Diluted Earnings Per Share	$785.7K	$3.632M	$6.33
COMMON SHARES
Basic Shares Outstanding	192.2M shares	193.7M shares	188.8M shares
Diluted Shares Outstanding			189.9M shares

Balance Sheet

Concept	2013 Q4	2012 Q4	2012
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$1.258B	$990.0M	$814.0M
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment	$8.000M	$69.00M	$69.00M
YoY Change	-88.41%	0.0%	0.0%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$12.33B	$14.02B	$14.02B
YoY Change	-12.04%	-26.13%	-26.12%
Other Assets	$1.138B	$1.199B	$1.199B
YoY Change	-5.09%	-31.29%	-31.29%
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$16.95B	$21.72B	$21.72B
YoY Change	-21.96%	-19.16%	-19.16%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities
YoY Change
LONG-TERM LIABILITIES
Long-Term Debt	$1.702B	$1.732B	$11.40B
YoY Change	-1.73%	-87.74%	-19.34%
Other Long-Term Liabilities	$1.457B	$3.341B	$3.341B
YoY Change	-56.39%	-47.62%	-46.61%
Total Long-Term Liabilities	$1.702B	$1.732B	$14.74B
YoY Change	-1.73%	-91.55%	-27.71%
TOTAL LIABILITIES
Total Short-Term Liabilities
Total Long-Term Liabilities	$1.702B	$1.732B	$14.74B
Total Liabilities	$13.65B	$18.53B	$18.53B
YoY Change	-26.31%	-26.32%	-26.32%
SHAREHOLDERS EQUITY
Retained Earnings	$2.289B	$2.039B
YoY Change	12.26%	153.29%
Common Stock	$278.0M	$277.0M
YoY Change	0.36%	0.73%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$2.318B	$2.275B
YoY Change	1.89%	-0.04%
Treasury Stock Shares	85.56M shares	81.73M shares
Shareholders Equity	$3.278B	$3.173B	$3.194B
YoY Change
Total Liabilities & Shareholders Equity	$16.95B	$21.72B	$21.72B
YoY Change	-21.96%	-19.16%	-19.16%

Cashflow Statement

Concept	2013 Q4	2012 Q4	2012
OPERATING ACTIVITIES
Net Income	$132.0M	$636.0M	$1.234B
YoY Change	-79.25%	-201.6%	-193.56%
Depreciation, Depletion And Amortization
YoY Change
Cash From Operating Activities	$796.0M	-$72.00M	-$1.027B
YoY Change	-1205.56%	-94.95%	-60.91%
INVESTING ACTIVITIES
Capital Expenditures	-$1.000M	-$2.000M	$7.000M
YoY Change	-50.0%	0.0%	40.0%
Acquisitions
YoY Change
Other Investing Activities	-$302.0M	$1.091B	$4.202B
YoY Change	-127.68%	-10.43%	4.74%
Cash From Investing Activities	-$303.0M	$1.089B	$4.195B
YoY Change	-127.82%	-10.44%	4.69%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net			$0.00
YoY Change			-100.0%
Debt Paid & Issued, Net			$540.0M
YoY Change			730.77%
Cash From Financing Activities	-342.0M	-468.0M	-2.811B
YoY Change	-26.92%	18.48%	49.76%
NET CHANGE
Cash From Operating Activities	796.0M	-72.00M	-1.027B
Cash From Investing Activities	-303.0M	1.089B	4.195B
Cash From Financing Activities	-342.0M	-468.0M	-2.811B
Net Change In Cash	151.0M	549.0M	357.0M
YoY Change	-72.5%	-190.59%	-171.83%
FREE CASH FLOW
Cash From Operating Activities	$796.0M	-$72.00M	-$1.027B
Capital Expenditures	-$1.000M	-$2.000M	$7.000M
Free Cash Flow	$797.0M	-$70.00M	-$1.034B
YoY Change	-1238.57%	-95.09%	-60.71%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
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CY2014	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	35000000	USD
CY2014	mbi	Vie Interest Net VieInterestNet	77000000	USD
CY2014	dei	Document Type DocumentType	10-K
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CY2013Q4	mbi	Preferred Stock Of Subsidiary And Noncontrolling Interest Value PreferredStockOfSubsidiaryAndNoncontrollingInterestValue	21000000	USD
CY2013Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
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CY2013	us-gaap	Increase Decrease In Loss And Loss Adjustment Expense Reserve IncreaseDecreaseInLossAndLossAdjustmentExpenseReserve	216000000	USD
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CY2014	mbi	Increase Decrease In Other Net Realized Gains Losses IncreaseDecreaseInOtherNetRealizedGainsLosses	-25000000	USD
CY2013Q4	mbi	Number Of Policies NumberOfPolicies	299
CY2014Q4	mbi	Available For Sale Securities Gross Unrealized Gain Accumulated In Investments AvailableForSaleSecuritiesGrossUnrealizedGainAccumulatedInInvestments	209000000	USD
CY2013Q4	mbi	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	181000000	USD
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CY2014Q4	mbi	Held To Maturity Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	0	USD
CY2014	mbi	Additions For Credit Loss Impairments Recognized In Prior Periods For Securities That Were Reimpaired With Non Credit Component In Current Period AdditionsForCreditLossImpairmentsRecognizedInPriorPeriodsForSecuritiesThatWereReimpairedWithNonCreditComponentInCurrentPeriod	0	USD
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CY2013	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.29
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CY2014	dei	Amendment Flag AmendmentFlag	false
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CY2013	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
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CY2013	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	106000000	USD
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CY2014	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	107000000	USD
CY2013	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	232000000	USD
CY2014Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	18000000	USD
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CY2014	dei	Document Period End Date DocumentPeriodEndDate	2014-12-31
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CY2014Q4	mbi	Held To Maturity Securities Continuous Unrealized Loss Position Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	202000000	USD
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CY2014	us-gaap	Financial Guarantee Insurance Contracts Claim Liability Weighted Average Risk Free Discount Rate FinancialGuaranteeInsuranceContractsClaimLiabilityWeightedAverageRiskFreeDiscountRate	0.0172	pure
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CY2014Q4	mbi	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	202000000	USD
CY2013Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	6692000000	USD
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CY2013	us-gaap	Repayments Of Medium Term Notes RepaymentsOfMediumTermNotes	197000000	USD
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CY2014Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue	373000000	USD
CY2014	dei	Entity Registrant Name EntityRegistrantName	MBIA INC
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CY2014	dei	Trading Symbol TradingSymbol	MBI
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CY2013	mbi	Insurance Loss Recoverable And Changes In Recoveries Of Unpaid Losses Change In Assumptions InsuranceLossRecoverableAndChangesInRecoveriesOfUnpaidLossesChangeInAssumptions	35000000	USD
CY2014Q4	mbi	Available For Sale Securities Gross Unrealized Loss Accumulated In Investments AvailableForSaleSecuritiesGrossUnrealizedLossAccumulatedInInvestments	147000000	USD
CY2014Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	851000000	USD
CY2014Q4	mbi	Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Aggregate Losses Accumulated In Investments AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLossesAccumulatedInInvestments	2000000	USD
CY2013Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	2978000000	USD
CY2013Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue	1244000000	USD
CY2013Q4	mbi	Available For Sale Securities Continuous Unrealized Loss Position Aggregate Losses Accumulated In Investments AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAggregateLossesAccumulatedInInvestments	229000000	USD
CY2014	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Cash Flows OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsCashFlows	1000000	USD
CY2013	us-gaap	Income Tax Effects Allocated Directly To Equity IncomeTaxEffectsAllocatedDirectlyToEquity	-72000000	USD
CY2014	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	0	USD
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CY2014	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
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CY2014	us-gaap	Description Of New Accounting Pronouncements Not Yet Adopted DescriptionOfNewAccountingPronouncementsNotYetAdopted	<div><p style='text-align:left;margin-top:0pt;margin-bottom:9pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;font-weight:bold;font-style:italic;margin-left:0pt;' >Recent </font><font style='font-family:Times New Roman;font-size:10pt;font-weight:bold;font-style:italic;' >Accounting Developments</font><font style='font-family:Times New Roman;font-size:10pt;font-weight:bold;font-style:italic;' > </font></p><p style='text-align:left;margin-top:0pt;margin-bottom:9pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;margin-left:0pt;' >Presentation of Financial Statements (Topic 205) and Property, P</font><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;' >lant, and </font><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;' >Equipment (Topic 360)</font><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;' > —</font><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;' >Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity</font></p><p style='text-align:left;margin-top:0pt;margin-bottom:9pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;margin-left:0pt;' >In April of 2014, the FASB issued ASU 2014-08, “Presentation of Financial Statements (Topic</font><font style='font-family:Times New Roman;font-size:10pt;' > 205) and Property, Plant, and Equipment (Topic 360)-Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity.” ASU 2014-08 changes the criteria for determining whether a disposal of a component or group of components of an</font><font style='font-family:Times New Roman;font-size:10pt;' > entity qualifies for discontinued operations presentation and requires new disclosures. ASU 2014-08 amends the definition of discontinued operation to a disposal of components of an entity that represent strategic shifts that have, or will have, a major e</font><font style='font-family:Times New Roman;font-size:10pt;' >ffect on an entity’s operations and financial results. ASU 2014-08 is effective for interim and annual periods beginning January 1, 2015, and with early adoption permitted but only for disposals or classifications as held for sale that have not been report</font><font style='font-family:Times New Roman;font-size:10pt;' >ed in previously issued financial statements. The adoption of ASU 2014-08 is not expected to materially impact the Company’s consolidated financial statements.</font></p><p style='text-align:left;margin-top:0pt;margin-bottom:9pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;margin-left:0pt;' >Revenue from Contracts with Customers (Topic 606) (ASU 2014-09)</font></p><p style='text-align:left;margin-top:0pt;margin-bottom:9pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;margin-left:0pt;' >In May of 2014, the FASB issued </font><font style='font-family:Times New Roman;font-size:10pt;' >ASU 2014-09, “Revenue from Contracts with Customers (Topic 606).” ASU 2014-09 amends the accounting guidance for recognizing revenue for the transfer of goods or services from contracts with customers unless those contracts are within the scope of other ac</font><font style='font-family:Times New Roman;font-size:10pt;' >counting standards. ASU 2014-09 is effective for interim and annual periods beginning January 1, 2017, and is applied on a retrospective or modified retrospective basis. The Company is evaluating the impact of adopting ASU 2014-09.</font></p><p style='text-align:left;margin-top:0pt;margin-bottom:9pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;margin-left:0pt;' >Tra</font><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;' >nsfers and Servicing </font><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;' >(Topic 860</font><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;' >)</font><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;' > — </font><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;' >Repurchase-to-Maturity Transactions, Repurchase Financings, and Disclosures (ASU 2014-11)</font></p><p style='text-align:left;margin-top:0pt;margin-bottom:9pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;margin-left:0pt;' >In June of 2014, the FASB issued ASU 2014-11, “Transfers and Servicing (Topic 860)-Repurchase-to-Maturity Transactions, Repurchase Financings, and Discl</font><font style='font-family:Times New Roman;font-size:10pt;' >osures.” The repurchase agreements and similar transactions guidance is amended by ASU 2014-11 to change the accounting for i.) repurchase-to-maturity transactions to secured borrowing accounting and ii.) linked repurchase financing transactions to secured</font><font style='font-family:Times New Roman;font-size:10pt;' > borrowing accounting. ASU 2014-11 amends disclosure requirements for transfers accounted for as sales, and for repurchase transactions accounted for as secured borrowings. ASU 2014-11 is effective for interim and annual periods beginning January 1, 2015, </font><font style='font-family:Times New Roman;font-size:10pt;' >and is applied on a prospective basis. The adoption of ASU 2014-11 is not expected to materially impact the Company’s consolidated financial statements.</font></p><p style='text-align:left;margin-top:0pt;margin-bottom:9pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;margin-left:0pt;' >Compensation-Stock Compensation (Topic 718</font><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;' >)</font><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;' > —</font><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;' > </font><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;' >Accounting for Share-Based Payments When the Terms of an </font><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;' >Award Provide That a Performance Target Could Be Achieved after the Requisite Service Period (A Consensus of the FASB Emerging Issues Task Force) (ASU 2014-12)</font></p><p style='text-align:left;margin-top:0pt;margin-bottom:9pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;margin-left:0pt;' >In June of 2014, the FASB issued ASU 2014-12, “Compensation-Stock Compensation (Topic 718)-Accou</font><font style='font-family:Times New Roman;font-size:10pt;' >nting for Share-Based Payments When the Terms of an Award Provide That a Performance Target Could Be Achieved after the Requisite Service Period.” ASU 2014-12 requires that a performance target that affects vesting of share-based payment awards and that co</font><font style='font-family:Times New Roman;font-size:10pt;' >uld be achieved after an employee’s requisite service period be accounted for as a performance condition. ASU 2014-12 is effective for interim and annual periods beginning January 1, 2016 with early adoption permitted, and is applied on a prospective basis</font><font style='font-family:Times New Roman;font-size:10pt;' > or retrospective basis. The adoption of ASU 2014-12 is not expected to materially impact the Company’s consolidated financial statements.</font></p><p style='text-align:left;margin-top:0pt;margin-bottom:4.5pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;margin-left:0pt;' >Consolidation (Topic 810)</font><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;' > </font><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;' >—</font><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;' >Measuring the Financial Assets and the Financial Liabilities of a Consolidated Collaterali</font><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;' >zed Financing Entity (ASU 2014-</font><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;' >13</font><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;' >) </font></p><p style='text-align:left;margin-top:0pt;margin-bottom:9pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;margin-left:0pt;' >In August of 2014, the FASB issued ASU 2014-13, “Consolidation (Topic 810)-Measuring the Financial Assets and the Financial Liabilities of a Consolidated Collateralized Financing Entity.”</font><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;' > </font><font style='font-family:Times New Roman;font-size:10pt;' >ASU 2014-13 applies to a consoli</font><font style='font-family:Times New Roman;font-size:10pt;' >dated collateralized financing entity defined as a consolidated VIE that holds financial assets and issues beneficial interests in those financial assets that are classified as financial liabilities. </font><font style='font-family:Times New Roman;font-size:10pt;' >The Company</font><font style='font-family:Times New Roman;font-size:10pt;' > may elect to measure the financial assets an</font><font style='font-family:Times New Roman;font-size:10pt;' >d the financial liabilities of a consolidated collateralized financing entity using a measurement alternative provided in ASU 2014-</font><font style='font-family:Times New Roman;font-size:10pt;' >13</font><font style='font-family:Times New Roman;font-size:10pt;' >. The measurement alternative requires both the financial assets and the financial liabilities of the consolidated collater</font><font style='font-family:Times New Roman;font-size:10pt;' >alized financing entity to be measured using the more observable of the fair value of the financial assets and the fair value of the financial liabilities with the changes in fair value recognized to earnings. Upon adoption, a reporting entity may apply th</font><font style='font-family:Times New Roman;font-size:10pt;' >e measurement alternative to existing consolidated collateralized financing entities. ASU 2014-</font><font style='font-family:Times New Roman;font-size:10pt;' >13</font><font style='font-family:Times New Roman;font-size:10pt;' > is effective for interim and annual periods beginning January 1, 2016 with early adoption permitted. The adoption of ASU 2014-</font><font style='font-family:Times New Roman;font-size:10pt;' >13</font><font style='font-family:Times New Roman;font-size:10pt;' > is not expected to materially</font><font style='font-family:Times New Roman;font-size:10pt;' > impact the Company’s consolidated financial statements.</font></p><p style='text-align:left;margin-top:0pt;margin-bottom:0pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;margin-left:0pt;' >Presentation of Financial Statements</font><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;' >—</font><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;' >Going Concern (Subtopic 205-40): Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern</font><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;' > </font><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;' >(ASU 2014-</font><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;' >15</font><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;' >)</font></p><p style='text-align:left;margin-top:4.5pt;margin-bottom:0pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;margin-left:0pt;' >In August of 2014, the FASB is</font><font style='font-family:Times New Roman;font-size:10pt;' >sued ASU 2014-15, “Presentation of Financial Statements-Going Concern (Subtopic 205-40): Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern.” ASU 2014-15 requires management to evaluate whether there are conditions or even</font><font style='font-family:Times New Roman;font-size:10pt;' >ts that raise substantial doubt about the entity’s ability to continue as a going concern, and to provide certain disclosures when it is probable that the entity will be unable to meet its obligations as they become due within one year after the date that </font><font style='font-family:Times New Roman;font-size:10pt;' >the financial statements are issued. ASU 2014-15 is effective for the annual period end</font><font style='font-family:Times New Roman;font-size:10pt;' >ing</font><font style='font-family:Times New Roman;font-size:10pt;' > December 31, 2016 and for annual periods and interim periods thereafter with early adoption permitted. </font><font style='font-family:Times New Roman;font-size:10pt;' >The adoption of ASU 2014-15 is not expected to materially impa</font><font style='font-family:Times New Roman;font-size:10pt;' >ct the Company’s consolidated financial statements.</font></p><p style='text-align:left;margin-top:9pt;margin-bottom:4.5pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;margin-left:0pt;' >Consolidation (Topic 810) </font><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;' >—Amendments to the Consolidation Analysis </font><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;' >(ASU 2015-02)</font></p><p style='text-align:left;margin-top:0pt;margin-bottom:9pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;margin-left:0pt;' >In February of 2015, the FASB issued ASU 2015-02, “Consolidation (Topic 810)</font><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;' >—</font><font style='font-family:Times New Roman;font-size:10pt;' >Amendments to the Consolidation Analysis</font><font style='font-family:Times New Roman;font-size:10pt;' >.” </font><font style='font-family:Times New Roman;font-size:10pt;' >ASU 2015-02 amends the accounting guidance for consolidation of legal entities including VIEs. ASU 2015-02 eliminates the specialized consolidation model and guidance for limited partnerships, amends the conditions for evaluating whether a fee paid to a de</font><font style='font-family:Times New Roman;font-size:10pt;' >cision maker or a service provider represents a variable interest in a VIE, amends the related party guidance for the determination of the primary beneficiary of a VIE, and requires certain investment funds designed as VIEs, except money market funds, to a</font><font style='font-family:Times New Roman;font-size:10pt;' >pply the amended consolidation guidance. ASU 2015-02 is effective for interim and annual periods beginning January 1, 2016 with early adoption permitted, and is applied on a retrospective or modified retrospective basis. The Company is evaluating the impac</font><font style='font-family:Times New Roman;font-size:10pt;' >t of adopting ASU 2015-02.</font></p><p style='text-align:left;line-height:12pt;' ></p></div>
CY2014	mbi	Undistributed Earnings Allocated To Participating Securities Diluted UndistributedEarningsAllocatedToParticipatingSecuritiesDiluted	15000000	USD
CY2014	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	12000000	USD
CY2013	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
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CY2013	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	18000000	USD
CY2013	us-gaap	Net Income Loss NetIncomeLoss	250000000	USD
CY2014Q4	mbi	Percentage Of Insured Credit Derivatives Value Under Direct Price Model And Dual Default Model PercentageOfInsuredCreditDerivativesValueUnderDirectPriceModelAndDualDefaultModel	0.07	pure
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	42000000	USD
CY2013	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	166000000	USD
CY2013	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	189071011	shares
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	8000000	USD
CY2013	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	2000000	USD
CY2014	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	171000000	USD
CY2013	mbi	Other Comprehensive Income Unrealized Holding Gain Loss Arising During Period On Securities With Other Than Temporary Impairment Losses Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossArisingDuringPeriodOnSecuritiesWithOtherThanTemporaryImpairmentLossesBeforeTax	15000000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Reclassification Adjustment From Aoci Realized Upon Sale Or Liquidation Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationBeforeTax	-4000000	USD
CY2014	mbi	Commuted Gross Insured Exposure CommutedGrossInsuredExposure	7100000000	USD
CY2014	mbi	Transfers Out Of Level Two TransfersOutOfLevelTwo	240000000	USD
CY2013	mbi	Transfers Into Level Three TransfersIntoLevelThree	403000000	USD
CY2014Q4	mbi	Fair Value Of Credit Support Annexes FairValueOfCreditSupportAnnexes	2000000	USD
CY2013Q4	mbi	Investment Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions For Continuous Twelve Month Period InvestmentSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsForContinuousTwelveMonthPeriod	77	security
CY2013Q4	mbi	Derivative Liability Counterparty Netting DerivativeLiabilityCounterpartyNetting	42000000	USD
CY2013	mbi	Revenues Of Consolidated Vies RevenuesOfConsolidatedVies	233000000	USD
CY2013	mbi	Segment Pretax Income Loss SegmentPretaxIncomeLoss	416000000	USD
CY2014	mbi	Net Gains Losses On Financial Instruments At Fair Value And Foreign Exchange NetGainsLossesOnFinancialInstrumentsAtFairValueAndForeignExchange	78000000	USD
CY2014	mbi	Segment Pretax Income Loss SegmentPretaxIncomeLoss	641000000	USD
CY2014Q4	mbi	Fair Value Of Securities On Deposit With Various Regulatory Authorities FairValueOfSecuritiesOnDepositWithVariousRegulatoryAuthorities	10000000	USD
CY2013Q4	us-gaap	Liabilities Liabilities	13654000000	USD
CY2014Q4	us-gaap	Stockholders Equity StockholdersEquity	3929000000	USD
CY2014Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	281352782	shares
CY2013Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	400000000	shares
CY2014Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3950000000	USD
CY2014	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	10000000	USD
CY2014	us-gaap	Proceeds From Insurance Premiums Collected ProceedsFromInsurancePremiumsCollected	193000000	USD
CY2013	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	2397000000	USD
CY2013	us-gaap	Repayments Of Notes Payable RepaymentsOfNotesPayable	1112000000	USD
CY2013	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents Continuing Operations EffectOfExchangeRateOnCashAndCashEquivalentsContinuingOperations	11000000	USD
CY2014	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	50000000	USD
CY2014	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2014
CY2013Q4	us-gaap	Treasury Stock Value TreasuryStockValue	2318000000	USD
CY2014	mbi	Proceeds From Reinsurance And Recoveries ProceedsFromReinsuranceAndRecoveries	131000000	USD
CY2014	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	192000000	USD
CY2013	us-gaap	Increase Decrease In Premiums Receivable IncreaseDecreaseInPremiumsReceivable	-176000000	USD
CY2014	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	-902000000	USD
CY2014	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	32000000	USD
CY2014Q4	us-gaap	Schedule Of Insured Financial Obligations With Credit Deterioration Statement Of Financial Position Unearned Premium Revenue ScheduleOfInsuredFinancialObligationsWithCreditDeteriorationStatementOfFinancialPositionUnearnedPremiumRevenue	167000000	USD
CY2013Q4	us-gaap	Schedule Of Insured Financial Obligations With Credit Deterioration Net Claim Liability ScheduleOfInsuredFinancialObligationsWithCreditDeteriorationNetClaimLiability	-55000000	USD
CY2014Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	6571000000	USD
CY2013Q4	mbi	Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Aggregate Losses Accumulated In Investments AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLossesAccumulatedInInvestments	101000000	USD
CY2013	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Cash Flows OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsCashFlows	6000000	USD
CY2014Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	2757000000	USD
CY2013Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	2651000000	USD
CY2013Q4	mbi	Available For Sale Cumulative Other Than Temporary Impairment Of Securities AvailableForSaleCumulativeOtherThanTemporaryImpairmentOfSecurities	10000000	USD
CY2014	us-gaap	Income Tax Expense Benefit Intraperiod Tax Allocation IncomeTaxExpenseBenefitIntraperiodTaxAllocation	121000000	USD
CY2013	us-gaap	Income Tax Expense Benefit Intraperiod Tax Allocation IncomeTaxExpenseBenefitIntraperiodTaxAllocation	94000000	USD
CY2014Q4	us-gaap	Deferred Tax Liabilities Other Comprehensive Income DeferredTaxLiabilitiesOtherComprehensiveIncome	4000000	USD
CY2014Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	USD
CY2014	us-gaap	Lessee Leasing Arrangements Operating Leases Renewal Term LesseeLeasingArrangementsOperatingLeasesRenewalTerm	P5Y
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CY2013Q4	mbi	Approximate Percentage Of Level3 Liabilities At Fair Value In Total Liabilities Measured At Fair Value ApproximatePercentageOfLevel3LiabilitiesAtFairValueInTotalLiabilitiesMeasuredAtFairValue	0.61	pure
CY2014	mbi	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale And For Writedown Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAociForSaleAndForWritedownOfSecuritiesBeforeTax	-6000000	USD
CY2013	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	60000000	USD
CY2013Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2014	mbi	Payments For Net Realized Losses On Insured Derivatives Paid PaymentsForNetRealizedLossesOnInsuredDerivativesPaid	432000000	USD
CY2013	mbi	Undistributed Earnings Allocated To Participating Securities Diluted UndistributedEarningsAllocatedToParticipatingSecuritiesDiluted	5000000	USD
CY2013	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	29000000	USD
CY2014	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	48000000	USD
CY2014Q4	mbi	Investment Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions For Continuous Twelve Month Period InvestmentSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsForContinuousTwelveMonthPeriod	143	security
CY2013Q4	mbi	Derivative Fair Value Of Derivative Liability Net Of Counterparty Netting DerivativeFairValueOfDerivativeLiabilityNetOfCounterpartyNetting	1200000000	USD
CY2014Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	1000000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax	22000000	USD
CY2013	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.3
CY2014	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	190898627	shares
CY2014	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	2000000	USD
CY2014	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	83000000	USD
CY2013	mbi	Other Comprehensive Income Unrealized Holding Gain Loss Arising During Period On Securities With Other Than Temporary Impairment Losses Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossArisingDuringPeriodOnSecuritiesWithOtherThanTemporaryImpairmentLossesTax	6000000	USD
CY2014	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	-27000000	USD
CY2014	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	676000000	USD
CY2014	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	3000000	USD
CY2014	us-gaap	Interest Expense InterestExpense	210000000	USD
CY2014	mbi	Revenues Of Consolidated Vies RevenuesOfConsolidatedVies	101000000	USD
CY2013Q4	mbi	Fair Value Of Securities On Deposit With Various Regulatory Authorities FairValueOfSecuritiesOnDepositWithVariousRegulatoryAuthorities	10000000	USD
CY2014	mbi	Transfers Into Level Three TransfersIntoLevelThree	240000000	USD
CY2014Q4	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	12000000	USD
CY2014	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2013	us-gaap	Interest Paid Net InterestPaidNet	224000000	USD
CY2014	us-gaap	Proceeds From Sale And Collection Of Loans Receivable ProceedsFromSaleAndCollectionOfLoansReceivable	313000000	USD
CY2014	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	812000000	USD
CY2013	us-gaap	Increase Decrease In Unearned Premiums IncreaseDecreaseInUnearnedPremiums	-506000000	USD
CY2014	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	106000000	USD
CY2013	us-gaap	Payments For Proceeds From Short Term Investments PaymentsForProceedsFromShortTermInvestments	358000000	USD
CY2013	mbi	Increase Decrease In Other Net Realized Gains Losses IncreaseDecreaseInOtherNetRealizedGainsLosses	28000000	USD
CY2014	us-gaap	Nature Of Operations NatureOfOperations	<div><p style='text-align:left;margin-top:0pt;margin-bottom:0pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;font-weight:bold;margin-left:0pt;' >Note 1: Business Developments and Risks and Uncertainties</font></p><p style='text-align:left;margin-top:13pt;margin-bottom:4.5pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;font-weight:bold;font-style:italic;margin-left:0pt;' >Summary</font></p><p style='text-align:left;margin-top:0pt;margin-bottom:9pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;margin-left:0pt;' >MBIA Inc., together with its consolidated subsidiaries, (collectively, “MBIA” or the “Company”) operates one of the largest financial guarantee insurance businesses in the industry and was a provider of asset management and advisory </font><font style='font-family:Times New Roman;font-size:10pt;' >services. </font><font style='font-family:Times New Roman;font-size:10pt;' >MBIA manages five operating segments: 1) United States (“U.S.”) public finance insurance; 2) international and structured finance insurance; 3) corporate; 4) advisory services; and 5) conduit.</font><font style='font-family:Times New Roman;font-size:10pt;' > </font><font style='font-family:Times New Roman;font-size:10pt;' >The Company’s U.S. public finance insurance business </font><font style='font-family:Times New Roman;font-size:10pt;' >is primarily operated through National Public Finance Guarantee Corporation and its subsidi</font><font style='font-family:Times New Roman;font-size:10pt;' >aries (“National”), its international and structured finance insurance business is primarily operated through MBIA Insurance Corporation and its subsidiaries (“MBIA </font><font style='font-family:Times New Roman;font-size:10pt;' >Corp.”), and its asset management and advisory services business was operated through Cutwater Holdings, LLC and its subsidiaries (“Cutwater”). Unless otherwise indicated or the context otherwise requires, references to “MBIA Corp.” are to MBIA Insurance C</font><font style='font-family:Times New Roman;font-size:10pt;' >orporation, together with its subsidiaries, MBIA UK Insurance Limited (“MBIA UK”) and MBIA Mexico S.A. de C.V. MBIA Inc. and certain of its subsidiaries also manage certain other business activities, the results of which are reported in the corporate and c</font><font style='font-family:Times New Roman;font-size:10pt;' >onduit segments. </font></p><p style='text-align:left;margin-top:0pt;margin-bottom:9pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;margin-left:0pt;' >During the second quarter of 2014, the Company dissolved its conduit segment. During the fourth quarter of 2014, the Company changed the name of its structured finance and international insurance operating segment to international and str</font><font style='font-family:Times New Roman;font-size:10pt;' >uctured finance insurance. Also during </font><font style='font-family:Times New Roman;font-size:10pt;' >the fourth quarter of 2014, the Company entered into an agreement to sell Cutwater to a subsidiary of The Bank of New York Mellon Corporation. This transaction, which was effective January 1, 2015, had a positive but </font><font style='font-family:Times New Roman;font-size:10pt;' >immaterial impact on the Company’s financial position and results of operations. </font><font style='font-family:Times New Roman;font-size:10pt;' >Effective in the fourth quarter of 2014, the Company’s previously reported asset/liability products segment and its corporate segment are managed and reported as one operating</font><font style='font-family:Times New Roman;font-size:10pt;' > segment referred to as the corporate segment. </font><font style='font-family:Times New Roman;font-size:10pt;' >Refer to “</font><font style='font-family:Times New Roman;font-size:10pt;' >Note 12: Business Segments</font><font style='font-family:Times New Roman;font-size:10pt;' >” for further information about the Company’s operating segments.</font></p><p style='text-align:left;margin-top:13.5pt;margin-bottom:4.5pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;font-weight:bold;font-style:italic;margin-left:0pt;' >Business Developments</font></p><p style='text-align:left;margin-top:4.5pt;margin-bottom:0pt;line-height:13.8pt;' ><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;margin-left:0pt;' >National Ratings and New Business Opportunities</font></p><p style='text-align:left;margin-top:4.5pt;margin-bottom:9pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;margin-left:0pt;' >National’s ability to write new business and compete</font><font style='font-family:Times New Roman;font-size:10pt;' > with other financial guarantors is largely dependent on the financial strength ratings assigned to National by major rating agencies. As of </font><font style='font-family:Times New Roman;font-size:10pt;' >December 31,</font><font style='font-family:Times New Roman;font-size:10pt;' > </font><font style='font-family:Times New Roman;font-size:10pt;' >2014</font><font style='font-family:Times New Roman;font-size:10pt;' >, National was rated </font><font style='font-family:Times New Roman;font-size:10pt;' >AA+ with a stable outlook by Kroll Bond Rating Agency, AA</font><font style='font-family:Times New Roman;font-size:10pt;' >- with a stable o</font><font style='font-family:Times New Roman;font-size:10pt;' >utlook</font><font style='font-family:Times New Roman;font-size:10pt;' > by </font><font style='font-family:Times New Roman;font-size:10pt;' >Standard & Poor’s Financial Services LLC (“S&P”)</font><font style='font-family:Times New Roman;font-size:10pt;' >, and A3 with a negative outlook by </font><font style='font-family:Times New Roman;font-size:10pt;' >Moody’s Investors Service, Inc. (“Moody’s”)</font><font style='font-family:Times New Roman;font-size:10pt;' >. </font></p><p style='text-align:left;margin-top:0pt;margin-bottom:4.5pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;margin-left:0pt;' >National seeks to generate shareholder value through appropriate risk adjusted pricing; however, current market cond</font><font style='font-family:Times New Roman;font-size:10pt;' >itions and the competitive landscape may limit National’s new business opportunities and its abilities to price and underwrite risk with attractive returns. Refer to “Risks and Uncertainties” below for a discussion of business risks related to National’s i</font><font style='font-family:Times New Roman;font-size:10pt;' >nsured portfolio.</font></p><p style='text-align:left;margin-top:13.5pt;margin-bottom:4.5pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;margin-left:0pt;' >MBIA Corp. Risk Reductions</font></p><p style='text-align:left;margin-top:0pt;margin-bottom:9pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;margin-left:0pt;' >During </font><font style='font-family:Times New Roman;font-size:10pt;' >2014</font><font style='font-family:Times New Roman;font-size:10pt;' >, the Company continued to focus on the collection of excess spread and put-back recoveries and the mitigation of MBIA Corp.’s high risk insurance exposures, primarily through commutations of insur</font><font style='font-family:Times New Roman;font-size:10pt;' >ance policies. During </font><font style='font-family:Times New Roman;font-size:10pt;' >2014</font><font style='font-family:Times New Roman;font-size:10pt;' >, MBIA Corp. commuted $</font><font style='font-family:Times New Roman;font-size:10pt;' >7.1</font><font style='font-family:Times New Roman;font-size:10pt;' > billion of gross par exposure, primarily comprising structured commercial mortgage-backed securities (“CMBS”) pools, investment grade corporate collateralized debt obligations (“CDOs</font><font style='font-family:Times New Roman;font-size:10pt;' >”), small business securitizations, commercial real estate (“CRE”) CDOs and asset-backed securities (“ABS”) CDOs. </font><font style='font-family:Times New Roman;font-size:10pt;' >During 2013, MBIA Corp. commuted $</font><font style='font-family:Times New Roman;font-size:10pt;' >20.0 </font><font style='font-family:Times New Roman;font-size:10pt;' >billion of gross par exposure, including $</font><font style='font-family:Times New Roman;font-size:10pt;' >7.4</font><font style='font-family:Times New Roman;font-size:10pt;' > billion and $</font><font style='font-family:Times New Roman;font-size:10pt;' >4.2</font><font style='font-family:Times New Roman;font-size:10pt;' > billion commuted with Bank of America an</font><font style='font-family:Times New Roman;font-size:10pt;' >d Societe Generale, respectively, primarily comprising structured CMBS pools, investment grade CDOs, ABS CDOs, first-lien residential mortgage-backed securities (“RMBS”), high yield corporate CDOs, CRE CDOs and structured insurance securities. During 2012,</font><font style='font-family:Times New Roman;font-size:10pt;' > MBIA Corp. commuted $</font><font style='font-family:Times New Roman;font-size:10pt;' >13.4</font><font style='font-family:Times New Roman;font-size:10pt;' > billion of gross par exposure, primarily comprising structured CMBS pools, CRE CDOs, investment grade CDOs, ABS CDOs, and subprime RMBS transactions. </font><font style='font-family:Times New Roman;font-size:10pt;' >MBIA Corp. may make negotiated settlement payments to counterparties and/or for</font><font style='font-family:Times New Roman;font-size:10pt;' >ego its right to all or some termination premiums when it commutes insurance exposures. The difference between the fair values of the Company’s derivative liabilities for the commuted policies and the aggregate cost of the commutation is reflected in earni</font><font style='font-family:Times New Roman;font-size:10pt;' >ngs. </font></p><p style='text-align:left;margin-top:13.5pt;margin-bottom:4.5pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;margin-left:0pt;' >Held For Sale Classifications</font></p><p style='text-align:left;margin-top:4.5pt;margin-bottom:4.5pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;text-decoration:underline;margin-left:0pt;' >Armonk, New York Facility</font></p><p style='text-align:left;margin-top:9pt;margin-bottom:9pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;margin-left:0pt;' >In the fourth quarter of 2013, the Company approved and initiated a plan to sell its Armonk, New York facility and, since then, has actively marketed the facility for sale. As a result, the facility was classified as held for sale as of December 31, 2014 a</font><font style='font-family:Times New Roman;font-size:10pt;' >nd 2013 and presented within “Assets held for sale” on the Company’s consolidated balance sheets and measured at the lower of its carrying value or fair value less cost to sell. The Company no longer recognizes depreciation expense on the facility while cl</font><font style='font-family:Times New Roman;font-size:10pt;' >assified as held for sale. During 2014 and 2013, the Company recorded impairment charges of $</font><font style='font-family:Times New Roman;font-size:10pt;' >3</font><font style='font-family:Times New Roman;font-size:10pt;' > million and $</font><font style='font-family:Times New Roman;font-size:10pt;' >29</font><font style='font-family:Times New Roman;font-size:10pt;' > million, respectively, on the Armonk, New York facility to adjust the carrying amount to its estimated fair market value less costs to sell. The </font><font style='font-family:Times New Roman;font-size:10pt;' >fair market value was estimated based on an independent third-party appraisal. The impairment charges were reflected in the results of the Company’s U.S. public finance insurance segment and included in “Other net realized gains (losses)” on the Company’s </font><font style='font-family:Times New Roman;font-size:10pt;' >consolidated statements of operations. Also, during 2014, the Company moved its headquarters from its Armonk, New York facility to a leased facility in Purchase, New York. </font></p><p style='text-align:left;margin-top:9pt;margin-bottom:4.5pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;text-decoration:underline;margin-left:0pt;' >Sale of </font><font style='font-family:Times New Roman;font-size:10pt;text-decoration:underline;' >Cutwater Business</font></p><p style='text-align:left;margin-top:9pt;margin-bottom:9pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;margin-left:0pt;' >As a</font><font style='font-family:Times New Roman;font-size:10pt;' > result of the agreement to sell Cutwater, the assets and liabilities of Cutwater were classified as held for sale as of December 31, 2014 and presented within “Assets held for sale” and “Liabilities held for sale” on the Company’s consolidated balance she</font><font style='font-family:Times New Roman;font-size:10pt;' >et and measured at the lower of its carrying value or fair value less cost to sell. </font></p><p style='text-align:left;margin-top:9pt;margin-bottom:4.5pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;text-decoration:underline;margin-left:0pt;' >Assets and Liabilities Held for Sale by Major Category</font></p><p style='text-align:left;margin-top:0pt;margin-bottom:9pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;margin-left:0pt;' >The following table summarizes the components of assets and liabilities held for sale as of December 31, 2014 and 2</font><font style='font-family:Times New Roman;font-size:10pt;' >013:</font></p><p style='text-align:left;line-height:12pt;' ></p></div><div><table style='border-collapse:collapse;margin-top:20pt;' ><tr style='height:9.75pt;' ><td style='width:37.5pt;text-align:left;border-color:Black;min-width:37.5pt;' ></td><td style='width:16.5pt;text-align:left;border-color:Black;min-width:16.5pt;' ></td><td style='width:15.75pt;text-align:left;border-color:Black;min-width:15.75pt;' ></td><td style='width:262.5pt;text-align:left;border-color:Black;min-width:262.5pt;' ></td><td style='width:15pt;text-align:center;border-color:Black;min-width:15pt;' ></td><td colspan='5' rowspan='1' style='width:155.25pt;border-bottom-style:solid;border-bottom-width:1;text-align:center;border-color:Black;min-width:155.25pt;' ><font style='font-family:Times New Roman;font-size:8.5pt;font-weight:bold;color:#000000;' >As of December 31,</font></td><td style='width:37.5pt;text-align:center;border-color:Black;min-width:37.5pt;' ></td></tr><tr style='height:9.75pt;' ><td style='width:37.5pt;text-align:left;border-color:Black;min-width:37.5pt;' ></td><td colspan='3' rowspan='1' style='width:294.75pt;border-bottom-style:solid;border-bottom-width:1;text-align:left;border-color:Black;min-width:294.75pt;' ><font style='font-family:Times New Roman;font-size:8.5pt;font-weight:bold;color:#000000;' >In millions</font></td><td style='width:15pt;text-align:center;border-color:Black;min-width:15pt;' ></td><td colspan='2' rowspan='1' style='width:68.25pt;border-top-style:solid;border-top-width:1;border-bottom-style:solid;border-bottom-width:1;text-align:center;border-color:Black;min-width:68.25pt;' ><font style='font-family:Times New Roman;font-size:8.5pt;font-weight:bold;color:#000000;' >2014</font></td><td style='width:15pt;border-top-style:solid;border-top-width:1;text-align:center;border-color:Black;min-width:15pt;' ></td><td colspan='2' rowspan='1' style='width:72pt;border-top-style:solid;border-top-width:1;border-bottom-style:solid;border-bottom-width:1;text-align:center;border-color:Black;min-width:72pt;' ><font style='font-family:Times New Roman;font-size:8.5pt;font-weight:bold;color:#000000;' >2013</font></td><td style='width:37.5pt;text-align:center;border-color:Black;min-width:37.5pt;' ></td></tr><tr style='height:12pt;' ><td style='width:37.5pt;text-align:left;border-color:Black;min-width:37.5pt;' ></td><td colspan='3' rowspan='1' style='width:294.75pt;border-top-style:solid;border-top-width:1;text-align:left;border-color:Black;min-width:294.75pt;' ><font style='font-family:Times New Roman;font-size:10pt;font-weight:bold;color:#000000;' >Assets</font></td><td style='width:15pt;text-align:left;border-color:Black;min-width:15pt;' ></td><td style='width:7.5pt;border-top-style:solid;border-top-width:1;text-align:center;border-color:Black;min-width:7.5pt;' ></td><td style='width:60.75pt;border-top-style:solid;border-top-width:1;text-align:left;border-color:Black;min-width:60.75pt;' ></td><td style='width:15pt;text-align:left;border-color:Black;min-width:15pt;' ></td><td style='width:7.5pt;border-top-style:solid;border-top-width:1;text-align:center;border-color:Black;min-width:7.5pt;' ></td><td style='width:64.5pt;border-top-style:solid;border-top-width:1;text-align:left;border-color:Black;min-width:64.5pt;' ></td><td style='width:37.5pt;text-align:left;border-color:Black;min-width:37.5pt;' ></td></tr><tr style='height:12pt;' ><td style='width:37.5pt;text-align:left;border-color:Black;min-width:37.5pt;' ></td><td style='width:16.5pt;text-align:left;border-color:Black;min-width:16.5pt;' ></td><td colspan='2' rowspan='1' style='width:278.25pt;text-align:left;border-color:Black;min-width:278.25pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' >Investments carried at fair value</font></td><td style='width:15pt;text-align:left;border-color:Black;min-width:15pt;' ></td><td style='width:7.5pt;text-align:center;border-color:Black;min-width:7.5pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' >$</font></td><td style='width:60.75pt;text-align:right;border-color:Black;min-width:60.75pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' >6</font></td><td style='width:15pt;text-align:left;border-color:Black;min-width:15pt;' ></td><td style='width:7.5pt;text-align:center;border-color:Black;min-width:7.5pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' >$</font></td><td style='width:64.5pt;text-align:right;border-color:Black;min-width:64.5pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' >-</font></td><td style='width:37.5pt;text-align:left;border-color:Black;min-width:37.5pt;' ></td></tr><tr style='height:12pt;' ><td style='width:37.5pt;text-align:left;border-color:Black;min-width:37.5pt;' ></td><td style='width:16.5pt;text-align:left;border-color:Black;min-width:16.5pt;' ></td><td colspan='2' rowspan='1' style='width:278.25pt;text-align:left;border-color:Black;min-width:278.25pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' >Cash and cash equivalents</font></td><td style='width:15pt;text-align:right;border-color:Black;min-width:15pt;' ></td><td style='width:7.5pt;text-align:left;border-color:Black;min-width:7.5pt;' ></td><td style='width:60.75pt;text-align:right;border-color:Black;min-width:60.75pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' >15</font></td><td style='width:15pt;text-align:right;border-color:Black;min-width:15pt;' ></td><td style='width:7.5pt;text-align:left;border-color:Black;min-width:7.5pt;' ></td><td style='width:64.5pt;text-align:right;border-color:Black;min-width:64.5pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' >-</font></td><td style='width:37.5pt;text-align:right;border-color:Black;min-width:37.5pt;' ></td></tr><tr style='height:12pt;' ><td style='width:37.5pt;text-align:left;border-color:Black;min-width:37.5pt;' ></td><td style='width:16.5pt;text-align:left;border-color:Black;min-width:16.5pt;' ></td><td colspan='2' rowspan='1' style='width:278.25pt;text-align:left;border-color:Black;min-width:278.25pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' >Facility</font></td><td style='width:15pt;text-align:right;border-color:Black;min-width:15pt;' ></td><td style='width:7.5pt;text-align:left;border-color:Black;min-width:7.5pt;' ></td><td style='width:60.75pt;text-align:right;border-color:Black;min-width:60.75pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' >26</font></td><td style='width:15pt;text-align:right;border-color:Black;min-width:15pt;' ></td><td style='width:7.5pt;text-align:left;border-color:Black;min-width:7.5pt;' ></td><td style='width:64.5pt;text-align:right;border-color:Black;min-width:64.5pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' >29</font></td><td style='width:37.5pt;text-align:right;border-color:Black;min-width:37.5pt;' ></td></tr><tr style='height:12pt;' ><td style='width:37.5pt;text-align:left;border-color:Black;min-width:37.5pt;' ></td><td style='width:16.5pt;text-align:left;border-color:Black;min-width:16.5pt;' ></td><td colspan='2' rowspan='1' style='width:278.25pt;text-align:left;border-color:Black;min-width:278.25pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' >Other assets</font></td><td style='width:15pt;text-align:right;border-color:Black;min-width:15pt;' ></td><td style='width:7.5pt;text-align:center;border-color:Black;min-width:7.5pt;' ></td><td style='width:60.75pt;text-align:right;border-color:Black;min-width:60.75pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' >4</font></td><td style='width:15pt;text-align:right;border-color:Black;min-width:15pt;' ></td><td style='width:7.5pt;text-align:center;border-color:Black;min-width:7.5pt;' ></td><td style='width:64.5pt;text-align:right;border-color:Black;min-width:64.5pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' >-</font></td><td style='width:37.5pt;text-align:right;border-color:Black;min-width:37.5pt;' ></td></tr><tr style='height:12pt;' ><td style='width:37.5pt;text-align:left;border-color:Black;min-width:37.5pt;' ></td><td style='width:16.5pt;text-align:left;border-color:Black;min-width:16.5pt;' ></td><td colspan='2' rowspan='1' style='width:278.25pt;text-align:left;border-color:Black;min-width:278.25pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' >Assets of consolidated variable interest entities:</font></td><td style='width:15pt;text-align:right;border-color:Black;min-width:15pt;' ></td><td style='width:7.5pt;text-align:center;border-color:Black;min-width:7.5pt;' ></td><td style='width:60.75pt;text-align:right;border-color:Black;min-width:60.75pt;' ></td><td style='width:15pt;text-align:right;border-color:Black;min-width:15pt;' ></td><td style='width:7.5pt;text-align:center;border-color:Black;min-width:7.5pt;' ></td><td style='width:64.5pt;text-align:right;border-color:Black;min-width:64.5pt;' ></td><td style='width:37.5pt;text-align:right;border-color:Black;min-width:37.5pt;' ></td></tr><tr style='height:12pt;' ><td style='width:37.5pt;text-align:left;border-color:Black;min-width:37.5pt;' ></td><td style='width:16.5pt;text-align:left;border-color:Black;min-width:16.5pt;' ></td><td style='width:15.75pt;text-align:left;border-color:Black;min-width:15.75pt;' ></td><td style='width:262.5pt;text-align:left;border-color:Black;min-width:262.5pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' >Cash</font></td><td style='width:15pt;text-align:right;border-color:Black;min-width:15pt;' ></td><td style='width:7.5pt;text-align:center;border-color:Black;min-width:7.5pt;' ></td><td style='width:60.75pt;text-align:right;border-color:Black;min-width:60.75pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' >40</font></td><td style='width:15pt;text-align:right;border-color:Black;min-width:15pt;' ></td><td style='width:7.5pt;text-align:center;border-color:Black;min-width:7.5pt;' ></td><td style='width:64.5pt;text-align:right;border-color:Black;min-width:64.5pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' >-</font></td><td style='width:37.5pt;text-align:right;border-color:Black;min-width:37.5pt;' ></td></tr><tr style='height:12pt;' ><td style='width:37.5pt;text-align:left;border-color:Black;min-width:37.5pt;' ></td><td style='width:16.5pt;text-align:left;border-color:Black;min-width:16.5pt;' ></td><td style='width:15.75pt;text-align:left;border-color:Black;min-width:15.75pt;' ></td><td style='width:262.5pt;text-align:left;border-color:Black;min-width:262.5pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' >Loans receivable at fair value</font></td><td style='width:15pt;text-align:right;border-color:Black;min-width:15pt;' ></td><td style='width:7.5pt;border-bottom-style:solid;border-bottom-width:1;text-align:center;border-color:Black;min-width:7.5pt;' ></td><td style='width:60.75pt;border-bottom-style:solid;border-bottom-width:1;text-align:right;border-color:Black;min-width:60.75pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' >711</font></td><td style='width:15pt;text-align:right;border-color:Black;min-width:15pt;' ></td><td style='width:7.5pt;border-bottom-style:solid;border-bottom-width:1;text-align:center;border-color:Black;min-width:7.5pt;' ></td><td style='width:64.5pt;border-bottom-style:solid;border-bottom-width:1;text-align:right;border-color:Black;min-width:64.5pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' >-</font></td><td style='width:37.5pt;text-align:right;border-color:Black;min-width:37.5pt;' ></td></tr><tr style='height:12pt;' ><td style='width:37.5pt;text-align:left;border-color:Black;min-width:37.5pt;' ></td><td style='width:16.5pt;text-align:left;border-color:Black;min-width:16.5pt;' ></td><td style='width:15.75pt;text-align:left;border-color:Black;min-width:15.75pt;' ></td><td style='width:262.5pt;text-align:left;border-color:Black;min-width:262.5pt;' ><font style='font-family:Times New Roman;font-size:10pt;font-weight:bold;color:#000000;' > Total assets held for sale</font></td><td style='width:15pt;text-align:right;border-color:Black;min-width:15pt;' ></td><td style='width:7.5pt;border-top-style:solid;border-top-width:1;border-bottom-style:double;border-bottom-width:3;text-align:center;border-color:Black;min-width:7.5pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' >$</font></td><td style='width:60.75pt;border-top-style:solid;border-top-width:1;border-bottom-style:double;border-bottom-width:3;text-align:right;border-color:Black;min-width:60.75pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' >802</font></td><td style='width:15pt;text-align:right;border-color:Black;min-width:15pt;' ></td><td style='width:7.5pt;border-top-style:solid;border-top-width:1;border-bottom-style:double;border-bottom-width:3;text-align:center;border-color:Black;min-width:7.5pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' >$</font></td><td style='width:64.5pt;border-top-style:solid;border-top-width:1;border-bottom-style:double;border-bottom-width:3;text-align:right;border-color:Black;min-width:64.5pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' >29</font></td><td style='width:37.5pt;text-align:right;border-color:Black;min-width:37.5pt;' ></td></tr><tr style='height:5.25pt;' ><td style='width:37.5pt;text-align:left;border-color:Black;min-width:37.5pt;' ></td><td style='width:16.5pt;text-align:left;border-color:Black;min-width:16.5pt;' ></td><td style='width:15.75pt;text-align:left;border-color:Black;min-width:15.75pt;' ></td><td style='width:262.5pt;text-align:left;border-color:Black;min-width:262.5pt;' ></td><td style='width:15pt;text-align:right;border-color:Black;min-width:15pt;' ></td><td style='width:7.5pt;border-top-style:double;border-top-width:3;text-align:center;border-color:Black;min-width:7.5pt;' ></td><td style='width:60.75pt;border-top-style:double;border-top-width:3;text-align:right;border-color:Black;min-width:60.75pt;' ></td><td style='width:15pt;text-align:right;border-color:Black;min-width:15pt;' ></td><td style='width:7.5pt;border-top-style:double;border-top-width:3;text-align:center;border-color:Black;min-width:7.5pt;' ></td><td style='width:64.5pt;border-top-style:double;border-top-width:3;text-align:right;border-color:Black;min-width:64.5pt;' ></td><td style='width:37.5pt;text-align:right;border-color:Black;min-width:37.5pt;' ></td></tr><tr style='height:12pt;' ><td style='width:37.5pt;text-align:left;border-color:Black;min-width:37.5pt;' ></td><td colspan='3' rowspan='1' style='width:294.75pt;text-align:left;border-color:Black;min-width:294.75pt;' ><font style='font-family:Times New Roman;font-size:10pt;font-weight:bold;color:#000000;' >Liabilities</font></td><td style='width:15pt;text-align:right;border-color:Black;min-width:15pt;' ></td><td style='width:7.5pt;text-align:center;border-color:Black;min-width:7.5pt;' ></td><td style='width:60.75pt;text-align:right;border-color:Black;min-width:60.75pt;' ></td><td style='width:15pt;text-align:right;border-color:Black;min-width:15pt;' ></td><td style='width:7.5pt;text-align:center;border-color:Black;min-width:7.5pt;' ></td><td style='width:64.5pt;text-align:right;border-color:Black;min-width:64.5pt;' ></td><td style='width:37.5pt;text-align:right;border-color:Black;min-width:37.5pt;' ></td></tr><tr style='height:12pt;' ><td style='width:37.5pt;text-align:left;border-color:Black;min-width:37.5pt;' ></td><td style='width:16.5pt;text-align:left;border-color:Black;min-width:16.5pt;' ></td><td colspan='2' rowspan='1' style='width:278.25pt;text-align:left;border-color:Black;min-width:278.25pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' >Other liabilities </font></td><td style='width:15pt;text-align:right;border-color:Black;min-width:15pt;' ></td><td style='width:7.5pt;text-align:center;border-color:Black;min-width:7.5pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' >$</font></td><td style='width:60.75pt;text-align:right;border-color:Black;min-width:60.75pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' >18</font></td><td style='width:15pt;text-align:right;border-color:Black;min-width:15pt;' ></td><td style='width:7.5pt;text-align:center;border-color:Black;min-width:7.5pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' >$</font></td><td style='width:64.5pt;text-align:right;border-color:Black;min-width:64.5pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' >-</font></td><td style='width:37.5pt;text-align:right;border-color:Black;min-width:37.5pt;' ></td></tr><tr style='height:12pt;' ><td style='width:37.5pt;text-align:left;border-color:Black;min-width:37.5pt;' ></td><td style='width:16.5pt;text-align:left;border-color:Black;min-width:16.5pt;' ></td><td colspan='2' rowspan='1' style='width:278.25pt;text-align:left;border-color:Black;min-width:278.25pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' >Liabilities of consolidated variable interest entities:</font></td><td style='width:15pt;text-align:right;border-color:Black;min-width:15pt;' ></td><td style='width:7.5pt;text-align:center;border-color:Black;min-width:7.5pt;' ></td><td style='width:60.75pt;text-align:left;border-color:Black;min-width:60.75pt;' ></td><td style='width:15pt;text-align:left;border-color:Black;min-width:15pt;' ></td><td style='width:7.5pt;text-align:center;border-color:Black;min-width:7.5pt;' ></td><td style='width:64.5pt;text-align:left;border-color:Black;min-width:64.5pt;' ></td><td style='width:37.5pt;text-align:right;border-color:Black;min-width:37.5pt;' ></td></tr><tr style='height:12pt;' ><td style='width:37.5pt;text-align:left;border-color:Black;min-width:37.5pt;' ></td><td style='width:16.5pt;text-align:left;border-color:Black;min-width:16.5pt;' ></td><td style='width:15.75pt;text-align:left;border-color:Black;min-width:15.75pt;' ></td><td style='width:262.5pt;text-align:left;border-color:Black;min-width:262.5pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' >Variable interest entity notes</font></td><td style='width:15pt;text-align:right;border-color:Black;min-width:15pt;' ></td><td style='width:7.5pt;text-align:center;border-color:Black;min-width:7.5pt;' ></td><td style='width:60.75pt;text-align:right;border-color:Black;min-width:60.75pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' >431</font></td><td style='width:15pt;text-align:right;border-color:Black;min-width:15pt;' ></td><td style='width:7.5pt;text-align:center;border-color:Black;min-width:7.5pt;' ></td><td style='width:64.5pt;text-align:right;border-color:Black;min-width:64.5pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' >-</font></td><td style='width:37.5pt;text-align:right;border-color:Black;min-width:37.5pt;' ></td></tr><tr style='height:12pt;' ><td style='width:37.5pt;text-align:left;border-color:Black;min-width:37.5pt;' ></td><td style='width:16.5pt;text-align:left;border-color:Black;min-width:16.5pt;' ></td><td style='width:15.75pt;text-align:left;border-color:Black;min-width:15.75pt;' ></td><td style='width:262.5pt;text-align:left;border-color:Black;min-width:262.5pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' >Payable for loans purchased</font></td><td style='width:15pt;text-align:right;border-color:Black;min-width:15pt;' ></td><td style='width:7.5pt;text-align:center;border-color:Black;min-width:7.5pt;' ></td><td style='width:60.75pt;text-align:right;border-color:Black;min-width:60.75pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' >323</font></td><td style='width:15pt;text-align:right;border-color:Black;min-width:15pt;' ></td><td style='width:7.5pt;text-align:center;border-color:Black;min-width:7.5pt;' ></td><td style='width:64.5pt;text-align:right;border-color:Black;min-width:64.5pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' >-</font></td><td style='width:37.5pt;text-align:right;border-color:Black;min-width:37.5pt;' ></td></tr><tr style='height:12pt;' ><td style='width:37.5pt;text-align:left;border-color:Black;min-width:37.5pt;' ></td><td style='width:16.5pt;text-align:left;border-color:Black;min-width:16.5pt;' ></td><td style='width:15.75pt;text-align:left;border-color:Black;min-width:15.75pt;' ></td><td style='width:262.5pt;text-align:left;border-color:Black;min-width:262.5pt;' ><font style='font-family:Times New Roman;font-size:10pt;font-weight:bold;color:#000000;' > Total liabilities held for sale</font></td><td style='width:15pt;text-align:right;border-color:Black;min-width:15pt;' ></td><td style='width:7.5pt;border-top-style:solid;border-top-width:1;border-bottom-style:double;border-bottom-width:3;text-align:center;border-color:Black;min-width:7.5pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' >$</font></td><td style='width:60.75pt;border-top-style:solid;border-top-width:1;border-bottom-style:double;border-bottom-width:3;text-align:right;border-color:Black;min-width:60.75pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' >772</font></td><td style='width:15pt;text-align:right;border-color:Black;min-width:15pt;' ></td><td style='width:7.5pt;border-top-style:solid;border-top-width:1;border-bottom-style:double;border-bottom-width:3;text-align:center;border-color:Black;min-width:7.5pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' >$</font></td><td style='width:64.5pt;border-top-style:solid;border-top-width:1;border-bottom-style:double;border-bottom-width:3;text-align:right;border-color:Black;min-width:64.5pt;' ><font style='font-family:Times New Roman;font-size:10pt;color:#000000;' >-</font></td><td style='width:37.5pt;text-align:right;border-color:Black;min-width:37.5pt;' ></td></tr></table></div><div><p style='text-align:left;margin-top:9pt;margin-bottom:0pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;font-weight:bold;font-style:italic;margin-left:0pt;' >Risks and Uncertainties</font></p><p style='text-align:left;margin-top:4.5pt;margin-bottom:4.5pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;margin-left:0pt;' >The Company’s financial statements inc</font><font style='font-family:Times New Roman;font-size:10pt;' >lude estimates and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses. The outcome of certain significant risks and uncertainties could cause the Company</font><font style='font-family:Times New Roman;font-size:10pt;' > to revise its estimates and assumptions or could cause actual results to differ from the Company’s estimates. While the Company believes it continues to have sufficient capital and liquidity to meet all of its expected obligations, if one or more possible</font><font style='font-family:Times New Roman;font-size:10pt;' > adverse outcomes were to be realized, its financial position, results of operations and cash flows, and its insurance companies’ statutory capital, could be materially and adversely affected. The discussion below highlights the significant risks and uncer</font><font style='font-family:Times New Roman;font-size:10pt;' >tainties that could have a material effect on the Company’s financial statements and business objectives in future periods. </font></p><p style='text-align:left;margin-top:9pt;margin-bottom:4.5pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;margin-left:0pt;' >U.S. Public Finance Market Conditions</font></p><p style='text-align:left;margin-top:0pt;margin-bottom:9pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;margin-left:0pt;' >National’s insured portfolio continued to perform satisfactorily against a backdrop of stren</font><font style='font-family:Times New Roman;font-size:10pt;' >gthening domestic economic activity. While this trend will generally benefit tax revenues and fees charged for essential municipal services which secure National’s insured bond portfolio, some state and local governments and territory obligors National ins</font><font style='font-family:Times New Roman;font-size:10pt;' >ures remain under financial and budgetary stress. In addition, a few of these local governments have filed for protection under Chapter 9 of the United States Bankruptcy Code or have entered into state statutory proceedings established to assist municipali</font><font style='font-family:Times New Roman;font-size:10pt;' >ties in managing through periods of severe fiscal stress. This could lead to an increase in defaults by such entities on the payment of their obligations and losses or impairments on a greater number of the Company’s insured transactions. The Company monit</font><font style='font-family:Times New Roman;font-size:10pt;' >ors and analyzes these situations and other stressed credits closely, and the overall extent and duration of this stress is uncertain. </font></p><p style='text-align:left;margin-top:9pt;margin-bottom:4.5pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;margin-left:0pt;' >MBIA Corp. Recoveri</font><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;' >es and Insured Portfolio </font></p><p style='text-align:left;margin-top:0pt;margin-bottom:4.5pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;margin-left:0pt;' >The amount and timing of projected collections from excess spread from sec</font><font style='font-family:Times New Roman;font-size:10pt;' >ond-lien RMBS and the put-back recoverable from Credit Suisse Securities (USA) LLC, DLJ Mortgage Capital, Inc., and Select Portfolio Servicing Inc. (collectively, “Credit Suisse”) and the potential of claims from MBIA Corp.’s remaining insured exposures ar</font><font style='font-family:Times New Roman;font-size:10pt;' >e uncertain. Further, the remaining insured portfolio, aside from these exposures, could deteriorate and result in additional significant loss reserves and claim payments. Management’s expected liquidity and capital forecasts for MBIA Corp., which include </font><font style='font-family:Times New Roman;font-size:10pt;' >expected put-back recoveries from Credit Suisse</font><font style='font-family:Times New Roman;font-size:10pt;' > </font><font style='font-family:Times New Roman;font-size:10pt;' >and excess spread recoveries, reflect adequate resources to pay claims when due. However, if MBIA Corp. experiences higher than expected claim payments or is unable to terminate the remaining exposures that r</font><font style='font-family:Times New Roman;font-size:10pt;' >epresent substantial risk to the Company, MBIA Corp. may ultimately have insufficient resources to continue to pay claims, which could cause the New York State Department of Financial Services (“NYSDFS”) to put MBIA Insurance Corporation, exclusive of MBIA</font><font style='font-family:Times New Roman;font-size:10pt;' > UK, into a rehabilitation or liquidation proceeding. The Company does </font><font style='font-family:Times New Roman;font-size:10pt;' >not believe that a rehabilitation or liquidation proceeding of MBIA Insurance Corporation by NYSDFS would have any significant long-term liquidity impact on MBIA Inc. or result in a liq</font><font style='font-family:Times New Roman;font-size:10pt;' >uidation or similar proceeding of MBIA UK.</font><font style='font-family:Times New Roman;font-size:10pt;' > Such a proceeding could have material adverse consequences for MBIA Corp., including the termination of insured credit default swaps (“CDS”) contracts for which counterparties may assert market-based claims, the a</font><font style='font-family:Times New Roman;font-size:10pt;' >cceleration of debt obligations issued by affiliates and insured by MBIA Corp., the loss of control of MBIA Insurance Corporation to a rehabilitator or liquidator, and unplanned costs.</font></p><p style='text-align:left;margin-top:0pt;margin-bottom:4.5pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;margin-left:0pt;' >Refer to “</font><font style='font-family:Times New Roman;font-size:10pt;' >Note 6: Loss and Loss Adjustment Expense Reserves</font><font style='font-family:Times New Roman;font-size:10pt;' >” for information about MBIA Corp.’s loss reserves</font><font style='font-family:Times New Roman;font-size:10pt;' > and recoveries. </font></p><p style='text-align:left;margin-top:9pt;margin-bottom:4.5pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;margin-left:0pt;' >Corporate Liquidity </font></p><p style='text-align:left;margin-top:0pt;margin-bottom:9pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;margin-left:0pt;' >As of </font><font style='font-family:Times New Roman;font-size:10pt;' >December 31,</font><font style='font-family:Times New Roman;font-size:10pt;' > </font><font style='font-family:Times New Roman;font-size:10pt;' >2014</font><font style='font-family:Times New Roman;font-size:10pt;' > and 2013, the liquidity position, which comprise cash and liquid assets available for general liquidity purposes, of the Company’s corporate segment was </font><font style='font-family:Times New Roman;font-size:10pt;' >$</font><font style='font-family:Times New Roman;font-size:10pt;' >498</font><font style='font-family:Times New Roman;font-size:10pt;' > million</font><font style='font-family:Times New Roman;font-size:10pt;' > and $</font><font style='font-family:Times New Roman;font-size:10pt;' >359</font><font style='font-family:Times New Roman;font-size:10pt;' > million, respectively. During </font><font style='font-family:Times New Roman;font-size:10pt;' >2014</font><font style='font-family:Times New Roman;font-size:10pt;' >, </font><font style='font-family:Times New Roman;font-size:10pt;' >$</font><font style='font-family:Times New Roman;font-size:10pt;' >220</font><font style='font-family:Times New Roman;font-size:10pt;' > million was released to MBIA Inc. under the MBIA group’s tax sharing agreement (the “Tax Escrow Account”) and National declared and paid a dividend of $220 million to its ultimate parent</font><font style='font-family:Times New Roman;font-size:10pt;' >, MBIA Inc. Subsequent to December 31, 2014, an additional $</font><font style='font-family:Times New Roman;font-size:10pt;' >228</font><font style='font-family:Times New Roman;font-size:10pt;' > million was released to MBIA Inc. from the Tax Escrow Account. While MBIA Inc.’s liquidity position improved during </font><font style='font-family:Times New Roman;font-size:10pt;' >2014</font><font style='font-family:Times New Roman;font-size:10pt;' > due to the Tax Escrow Account release and dividends received, MBIA I</font><font style='font-family:Times New Roman;font-size:10pt;' >nc. continues to have liquidity risk. If invested asset performance deteriorates or the flow of dividends from subsidiaries is interrupted and/or access to the capital markets is impaired, its liquidity position could be eroded over time. While the Company</font><font style='font-family:Times New Roman;font-size:10pt;' > expects that MBIA Inc. will generate sufficient cash to satisfy its debt obligations and its general corporate needs over time from distributions from its operating subsidiaries and payments under the Tax Escrow Account once the payments become unrestrict</font><font style='font-family:Times New Roman;font-size:10pt;' >ed, there can be no assurance that such sources will generate sufficient cash. In addition, a failure by MBIA Inc. to settle liabilities that are also insured by MBIA Corp. could result in claims on MBIA Corp.</font></p></div>
CY2013Q4	us-gaap	Schedule Of Insured Financial Obligations With Credit Deterioration Gross Claim Liability ScheduleOfInsuredFinancialObligationsWithCreditDeteriorationGrossClaimLiability	1235000000	USD
CY2013	mbi	Increase Decrease In Loss Adjustment Expense Recoveries IncreaseDecreaseInLossAdjustmentExpenseRecoveries	-41000000	USD
CY2014Q4	mbi	Available For Sale Securities Continuous Unrealized Loss Position Aggregate Losses Accumulated In Investments AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAggregateLossesAccumulatedInInvestments	147000000	USD
CY2013Q4	mbi	Held To Maturity Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	0	USD
CY2013	mbi	Additions For Credit Loss Impairments Recognized In Prior Periods For Securities That Were Reimpaired With Non Credit Component In Current Period AdditionsForCreditLossImpairmentsRecognizedInPriorPeriodsForSecuritiesThatWereReimpairedWithNonCreditComponentInCurrentPeriod	0	USD
CY2013	us-gaap	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Tax Portion Attributable To Parent OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossTaxPortionAttributableToParent	-4000000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0	USD
CY2014	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1104247	shares
CY2014Q4	mbi	Lease Incentives LeaseIncentives	6000000	USD
CY2014Q4	mbi	Impact Of Non Performance Risk On Insured Derivative Liability ImpactOfNonPerformanceRiskOnInsuredDerivativeLiability	92000000	USD
CY2014	mbi	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale And For Writedown Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAociForSaleAndForWritedownOfSecuritiesTax	-2000000	USD
CY2014Q4	us-gaap	Variable Interest Entity Consolidated Carrying Amount Liabilities VariableInterestEntityConsolidatedCarryingAmountLiabilities	4800000000	USD
CY2013Q4	mbi	Derivative Asset Counterparty Netting Amount Fair Value DerivativeAssetCounterpartyNettingAmountFairValue	42000000	USD
CY2014	mbi	Transfers Into And Out Of Level One TransfersIntoAndOutOfLevelOne	0	USD
CY2014Q4	mbi	Guarantee Obligations Maximum Net Exposure GuaranteeObligationsMaximumNetExposure	9700000000	USD
CY2013	us-gaap	Proceeds From Sale And Maturity Of Held To Maturity Securities ProceedsFromSaleAndMaturityOfHeldToMaturitySecurities	28000000	USD
CY2014	us-gaap	Proceeds From Sale And Maturity Of Held To Maturity Securities ProceedsFromSaleAndMaturityOfHeldToMaturitySecurities	44000000	USD
CY2014	mbi	Realized Gains Losses And Other Settlements On Insured Derivatives Total RealizedGainsLossesAndOtherSettlementsOnInsuredDerivativesTotal	-30000000	USD
CY2014	mbi	Proceeds From Sales Maturities And Paydowns Of Fair Value And Trading Securities ProceedsFromSalesMaturitiesAndPaydownsOfFairValueAndTradingSecurities	789000000	USD
CY2014	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet	15000000	USD
CY2014	us-gaap	Variable Interest Entity Initial Consolidation Gain Or Loss VariableInterestEntityInitialConsolidationGainOrLoss	-3000000	USD
CY2014	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	0	USD
CY2013Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	65000000	USD
CY2014	mbi	Payments For Deconsolidation Of Variable Interest Entity PaymentsForDeconsolidationOfVariableInterestEntity	-18000000	USD
CY2014	us-gaap	Increase Decrease In Loss And Loss Adjustment Expense Reserve IncreaseDecreaseInLossAndLossAdjustmentExpenseReserve	133000000	USD
CY2014	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	903000000	USD
CY2014	mbi	Payments To Acquire Fair Value Option And Trading Securities PaymentsToAcquireFairValueOptionAndTradingSecurities	631000000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-15000000	USD
CY2013Q4	us-gaap	Liabilities Fair Value Disclosure Recurring LiabilitiesFairValueDisclosureRecurring	3781000000	USD
CY2014Q4	mbi	Derivatives Ceded Under Reinsurance Agreements DerivativesCededUnderReinsuranceAgreements	13000000	USD
CY2014Q4	mbi	Other Assets And Derivative Assets Vie After Counterparty Netting And Embedded Reclass OtherAssetsAndDerivativeAssetsVieAfterCounterpartyNettingAndEmbeddedReclass	2000000	USD
CY2013	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	1777000000	USD
CY2013	mbi	Payments For Deconsolidation Of Variable Interest Entity PaymentsForDeconsolidationOfVariableInterestEntity	26000000	USD
CY2014	us-gaap	Increase Decrease In Unearned Premiums IncreaseDecreaseInUnearnedPremiums	-412000000	USD
CY2013	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	3000000	USD
CY2013	mbi	Payments To Acquire Fair Value Option And Trading Securities PaymentsToAcquireFairValueOptionAndTradingSecurities	371000000	USD
CY2014	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	61000000	USD
CY2014	mbi	Revenue From Transactions With Other Operating Segments Of Same Entity RevenueFromTransactionsWithOtherOperatingSegmentsOfSameEntity	0	USD
CY2014Q4	mbi	Number Of Variable Interest Entities Consolidated NumberOfVariableInterestEntitiesConsolidated	3	pure
CY2013	mbi	Realized Gains Losses And Other Settlements On Insured Derivatives Total RealizedGainsLossesAndOtherSettlementsOnInsuredDerivativesTotal	0	USD
CY2014	dei	Entity Central Index Key EntityCentralIndexKey	0000814585
CY2013Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-86000000	USD
CY2014	us-gaap	Payments For Operating Activities PaymentsForOperatingActivities	238000000	USD
CY2013	us-gaap	Increase Decrease Cash Collateral From Counterparties IncreaseDecreaseCashCollateralFromCounterparties	122000000	USD
CY2014	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-421000000	USD
CY2014	us-gaap	Increase Decrease In Deferred Policy Acquisition Costs IncreaseDecreaseInDeferredPolicyAcquisitionCosts	-43000000	USD
CY2013	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	3000000	USD
CY2013Q4	us-gaap	Schedule Of Insured Financial Obligations With Credit Deterioration Reductions Of Gross Claim Liability Gross Potential Recoveries ScheduleOfInsuredFinancialObligationsWithCreditDeteriorationReductionsOfGrossClaimLiabilityGrossPotentialRecoveries	1085000000	USD
CY2013	mbi	Insurance Loss Recoverable And Changes In Recoveries Of Unpaid Losses Change In Discount Rate InsuranceLossRecoverableAndChangesInRecoveriesOfUnpaidLossesChangeInDiscountRate	-71000000	USD
CY2013Q4	mbi	Available For Sale Securities Gross Unrealized Gain Accumulated In Investments AvailableForSaleSecuritiesGrossUnrealizedGainAccumulatedInInvestments	97000000	USD
CY2013Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	1244000000	USD
CY2013Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	0	USD
CY2014	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions No Previous Impairment OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsNoPreviousImpairment	15000000	USD
CY2014	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	15000000	USD
CY2013	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	4000000	USD
CY2014	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	526000000	USD
CY2014	us-gaap	Benefits Losses And Expenses BenefitsLossesAndExpenses	629000000	USD
CY2014Q4	us-gaap	Derivative Assets Liabilities At Fair Value Net DerivativeAssetsLiabilitiesAtFairValueNet	244000000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	13000000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Reclassification Adjustment From Aoci Realized Upon Sale Or Liquidation Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationTax	0	USD
CY2013	mbi	Revenue From Transactions With Other Operating Segments Of Same Entity RevenueFromTransactionsWithOtherOperatingSegmentsOfSameEntity	0	USD
CY2013	mbi	Segment Expense SegmentExpense	793000000	USD
CY2014Q4	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	16000000	USD
CY2014Q4	mbi	Derivative Liability Counterparty Netting DerivativeLiabilityCounterpartyNetting	81000000	USD
CY2013Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	3115000000	USD
CY2014Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	400000000	shares
CY2014Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	21000000	USD
CY2013	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-6000000	USD
CY2013	us-gaap	Increase Decrease In Deferred Policy Acquisition Costs IncreaseDecreaseInDeferredPolicyAcquisitionCosts	-43000000	USD
CY2013	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	157000000	USD
CY2013Q4	us-gaap	Schedule Of Insured Financial Obligations With Credit Deterioration Reductions Of Gross Claim Liability Net Discount ScheduleOfInsuredFinancialObligationsWithCreditDeteriorationReductionsOfGrossClaimLiabilityNetDiscount	205000000	USD
CY2014	mbi	Insurance Loss Recoverable And Changes In Recoveries Of Unpaid Losses Change In Assumptions InsuranceLossRecoverableAndChangesInRecoveriesOfUnpaidLossesChangeInAssumptions	-156000000	USD
CY2013	mbi	Insurance Loss Recoverable And Changes In Recoveries Of Unpaid Losses Other InsuranceLossRecoverableAndChangesInRecoveriesOfUnpaidLossesOther	-17000000	USD
CY2013	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	452000000	USD
CY2013Q4	mbi	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	31000000	USD
CY2014Q4	mbi	Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Aggregate Losses Accumulated In Investments AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLossesAccumulatedInInvestments	145000000	USD
CY2013Q4	mbi	Held To Maturity Securities Continuous Unrealized Loss Position Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	181000000	USD
CY2013	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	57000000	USD
CY2013	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	165000000	USD
CY2014	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.76
CY2013	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-76000000	USD
CY2014	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	484000000	USD
CY2014	us-gaap	Financial Guarantee Insurance Contracts Premium Received Over Contract Period Premium Receivable Weighted Average Risk Free Discount Rate FinancialGuaranteeInsuranceContractsPremiumReceivedOverContractPeriodPremiumReceivableWeightedAverageRiskFreeDiscountRate	0.028	pure
CY2013	us-gaap	Financial Guarantee Insurance Contracts Premium Received Over Contract Period Premium Receivable Weighted Average Risk Free Discount Rate FinancialGuaranteeInsuranceContractsPremiumReceivedOverContractPeriodPremiumReceivableWeightedAverageRiskFreeDiscountRate	0.029	pure
CY2012Q4	us-gaap	Premiums Receivable At Carrying Value PremiumsReceivableAtCarryingValue	1228000000	USD
CY2014Q4	us-gaap	Reinsurance Payable ReinsurancePayable	56000000	USD
CY2013Q4	us-gaap	Reinsurance Payable ReinsurancePayable	51000000	USD
CY2013Q4	us-gaap	Premiums Receivable At Carrying Value PremiumsReceivableAtCarryingValue	1051000000	USD
CY2014Q4	us-gaap	Premiums Receivable At Carrying Value PremiumsReceivableAtCarryingValue	875000000	USD
CY2014	us-gaap	Financial Guarantee Insurance Contracts Premium Receivable Premium Payments Received FinancialGuaranteeInsuranceContractsPremiumReceivablePremiumPaymentsReceived	-120000000	USD
CY2014	us-gaap	Financial Guarantee Insurance Contracts Premium Receivable New Business Written FinancialGuaranteeInsuranceContractsPremiumReceivableNewBusinessWritten	6000000	USD
CY2014	us-gaap	Financial Guarantee Insurance Contracts Premiums Receivable Adjustment Change In Period Of Contract FinancialGuaranteeInsuranceContractsPremiumsReceivableAdjustmentChangeInPeriodOfContract	-50000000	USD
CY2014	us-gaap	Financial Guarantee Insurance Contracts Premiums Receivable Adjustment Accretion Of Discount On Premium Receivable FinancialGuaranteeInsuranceContractsPremiumsReceivableAdjustmentAccretionOfDiscountOnPremiumReceivable	26000000	USD
CY2014	us-gaap	Financial Guarantee Insurance Contracts Premiums Receivable Adjustment Other Adjustments FinancialGuaranteeInsuranceContractsPremiumsReceivableAdjustmentOtherAdjustments	-38000000	USD
CY2013	us-gaap	Financial Guarantee Insurance Contracts Premium Receivable Premium Payments Received FinancialGuaranteeInsuranceContractsPremiumReceivablePremiumPaymentsReceived	-135000000	USD
CY2013	us-gaap	Financial Guarantee Insurance Contracts Premium Receivable New Business Written FinancialGuaranteeInsuranceContractsPremiumReceivableNewBusinessWritten	0	USD
CY2013	us-gaap	Financial Guarantee Insurance Contracts Premiums Receivable Adjustment Change In Period Of Contract FinancialGuaranteeInsuranceContractsPremiumsReceivableAdjustmentChangeInPeriodOfContract	-45000000	USD
CY2013	us-gaap	Financial Guarantee Insurance Contracts Premiums Receivable Adjustment Accretion Of Discount On Premium Receivable FinancialGuaranteeInsuranceContractsPremiumsReceivableAdjustmentAccretionOfDiscountOnPremiumReceivable	28000000	USD
CY2013	us-gaap	Financial Guarantee Insurance Contracts Premiums Receivable Adjustment Other Adjustments FinancialGuaranteeInsuranceContractsPremiumsReceivableAdjustmentOtherAdjustments	-25000000	USD
CY2014Q4	us-gaap	Financial Guarantee Insurance Contracts Premium Expected To Be Collected During First Quarter Following Balance Sheet Date FinancialGuaranteeInsuranceContractsPremiumExpectedToBeCollectedDuringFirstQuarterFollowingBalanceSheetDate	20000000	USD
CY2014Q4	us-gaap	Financial Guarantee Insurance Contracts Premium Expected To Be Collected During Second Quarter Following The Balance Sheet Date FinancialGuaranteeInsuranceContractsPremiumExpectedToBeCollectedDuringSecondQuarterFollowingTheBalanceSheetDate	32000000	USD
CY2014Q4	us-gaap	Financial Guarantee Insurance Contracts Premium Expected To Be Collected During Third Quarter Following Balance Sheet Date FinancialGuaranteeInsuranceContractsPremiumExpectedToBeCollectedDuringThirdQuarterFollowingBalanceSheetDate	21000000	USD
CY2014Q4	us-gaap	Financial Guarantee Insurance Contracts Premium Expected To Be Collected During Fourth Quarter Following Balance Sheet Date FinancialGuaranteeInsuranceContractsPremiumExpectedToBeCollectedDuringFourthQuarterFollowingBalanceSheetDate	24000000	USD
CY2014Q4	us-gaap	Financial Guarantee Insurance Contracts Premium Expected To Be Collected More Than One And Within Two Years From Balance Sheet Date FinancialGuaranteeInsuranceContractsPremiumExpectedToBeCollectedMoreThanOneAndWithinTwoYearsFromBalanceSheetDate	91000000	USD
CY2014Q4	us-gaap	Financial Guarantee Insurance Contracts Premium Expected To Be Collected More Than Two And Within Three Years From Balance Sheet Date FinancialGuaranteeInsuranceContractsPremiumExpectedToBeCollectedMoreThanTwoAndWithinThreeYearsFromBalanceSheetDate	83000000	USD
CY2014Q4	us-gaap	Financial Guarantee Insurance Contracts Premium Expected To Be Collected More Than Three And Within Four Years From Balance Sheet Date FinancialGuaranteeInsuranceContractsPremiumExpectedToBeCollectedMoreThanThreeAndWithinFourYearsFromBalanceSheetDate	73000000	USD
CY2014Q4	us-gaap	Financial Guarantee Insurance Contracts Premium Expected To Be Collected More Than Four And Within Five Years From Balance Sheet Date FinancialGuaranteeInsuranceContractsPremiumExpectedToBeCollectedMoreThanFourAndWithinFiveYearsFromBalanceSheetDate	68000000	USD
CY2014Q4	us-gaap	Financial Guarantee Insurance Contracts Premium Expected To Be Collected More Than Five And Within10 Years From Balance Sheet Date FinancialGuaranteeInsuranceContractsPremiumExpectedToBeCollectedMoreThanFiveAndWithin10YearsFromBalanceSheetDate	282000000	USD
CY2014Q4	us-gaap	Financial Guarantee Insurance Contracts Premium Expected To Be Collected More Than10 And Within15 Years From Balance Sheet Date FinancialGuaranteeInsuranceContractsPremiumExpectedToBeCollectedMoreThan10AndWithin15YearsFromBalanceSheetDate	204000000	USD
CY2014Q4	mbi	Financial Guarantee Insurance Contracts Premium Expected To Be Collected During Twenty First Year And Thereafter From Balance Sheet Date FinancialGuaranteeInsuranceContractsPremiumExpectedToBeCollectedDuringTwentyFirstYearAndThereafterFromBalanceSheetDate	213000000	USD
CY2014Q4	us-gaap	Financial Guarantee Insurance Contracts Premium Receivable Premium Expected To Be Collected FinancialGuaranteeInsuranceContractsPremiumReceivablePremiumExpectedToBeCollected	1111000000	USD
CY2014Q4	us-gaap	Financial Guarantee Insurance Contracts Future Expected Premium Revenue To Be Recognized During First Quarter Following Balance Sheet Date FinancialGuaranteeInsuranceContractsFutureExpectedPremiumRevenueToBeRecognizedDuringFirstQuarterFollowingBalanceSheetDate	58000000	USD
CY2014Q4	us-gaap	Financial Guarantee Insurance Contracts Future Expected Premium Revenue To Be Recognized During Second Quarter Following Balance Sheet Date FinancialGuaranteeInsuranceContractsFutureExpectedPremiumRevenueToBeRecognizedDuringSecondQuarterFollowingBalanceSheetDate	57000000	USD
CY2014Q4	us-gaap	Financial Guarantee Insurance Contracts Future Expected Premium Revenue To Be Recognized During Third Quarter Following Balance Sheet Date FinancialGuaranteeInsuranceContractsFutureExpectedPremiumRevenueToBeRecognizedDuringThirdQuarterFollowingBalanceSheetDate	55000000	USD
CY2014Q4	us-gaap	Financial Guarantee Insurance Contracts Future Expected Premium Revenue To Be Recognized During Fourth Quarter Following Balance Sheet Date FinancialGuaranteeInsuranceContractsFutureExpectedPremiumRevenueToBeRecognizedDuringFourthQuarterFollowingBalanceSheetDate	54000000	USD
CY2014Q4	us-gaap	Financial Guarantee Insurance Contracts Future Expected Premium Revenue To Be Recognized More Than One And Within Two Years From Balance Sheet Date FinancialGuaranteeInsuranceContractsFutureExpectedPremiumRevenueToBeRecognizedMoreThanOneAndWithinTwoYearsFromBalanceSheetDate	204000000	USD
CY2014Q4	us-gaap	Financial Guarantee Insurance Contracts Future Expected Premium Revenue To Be Recognized More Than Two And Within Three Years From Balance Sheet Date FinancialGuaranteeInsuranceContractsFutureExpectedPremiumRevenueToBeRecognizedMoreThanTwoAndWithinThreeYearsFromBalanceSheetDate	187000000	USD
CY2014Q4	us-gaap	Financial Guarantee Insurance Contracts Future Expected Premium Revenue To Be Recognized More Than Three And Within Four Years From Balance Sheet Date FinancialGuaranteeInsuranceContractsFutureExpectedPremiumRevenueToBeRecognizedMoreThanThreeAndWithinFourYearsFromBalanceSheetDate	168000000	USD
CY2014Q4	us-gaap	Financial Guarantee Insurance Contracts Future Expected Premium Revenue To Be Recognized More Than Four And Within Five Years From Balance Sheet Date FinancialGuaranteeInsuranceContractsFutureExpectedPremiumRevenueToBeRecognizedMoreThanFourAndWithinFiveYearsFromBalanceSheetDate	155000000	USD
CY2014Q4	mbi	Financial Guarantee Insurance Contracts Future Expected Premium Revenue To Be Recognized During Sixth Through Tenth Year Following Balance Sheet Date FinancialGuaranteeInsuranceContractsFutureExpectedPremiumRevenueToBeRecognizedDuringSixthThroughTenthYearFollowingBalanceSheetDate	599000000	USD
CY2014Q4	mbi	Financial Guarantee Insurance Contracts Future Expected Premium Revenue To Be Recognized During Eleventh Through Fifteenth Year Following Balance Sheet Date FinancialGuaranteeInsuranceContractsFutureExpectedPremiumRevenueToBeRecognizedDuringEleventhThroughFifteenthYearFollowingBalanceSheetDate	362000000	USD
CY2014Q4	mbi	Financial Guarantee Insurance Contracts Future Expected Premium Revenue To Be Recognized During Sixteenth Year And Thereafter Following Balance Sheet Date FinancialGuaranteeInsuranceContractsFutureExpectedPremiumRevenueToBeRecognizedDuringSixteenthYearAndThereafterFollowingBalanceSheetDate	323000000	USD
CY2014Q4	us-gaap	Financial Guarantee Insurance Contracts Future Expected Premium Revenue To Be Recognized FinancialGuaranteeInsuranceContractsFutureExpectedPremiumRevenueToBeRecognized	2222000000	USD
CY2014Q4	us-gaap	Participating Policies As Percentage Of Gross Insurance In Force ParticipatingPoliciesAsPercentageOfGrossInsuranceInForce	1	pure
CY2013Q4	us-gaap	Participating Policies As Percentage Of Gross Insurance In Force ParticipatingPoliciesAsPercentageOfGrossInsuranceInForce	1	pure
CY2012	us-gaap	Revenues Revenues	2435000000	USD
CY2012	us-gaap	Benefits Losses And Expenses BenefitsLossesAndExpenses	837000000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	1598000000	USD
CY2012	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	364000000	USD
CY2012	us-gaap	Net Income Loss NetIncomeLoss	1234000000	USD
CY2012	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	6.36
CY2012	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	6.33
CY2012	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	188834626	shares
CY2012	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	189897021	shares
CY2012	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	72000000	USD
CY2012	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	104000000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-39000000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	-14000000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-25000000	USD
CY2012	mbi	Other Comprehensive Income Unrealized Holding Gain Loss Arising During Period On Securities With Other Than Temporary Impairment Losses Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossArisingDuringPeriodOnSecuritiesWithOtherThanTemporaryImpairmentLossesBeforeTax	50000000	USD
CY2012	mbi	Other Comprehensive Income Unrealized Holding Gain Loss Arising During Period On Securities With Other Than Temporary Impairment Losses Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossArisingDuringPeriodOnSecuritiesWithOtherThanTemporaryImpairmentLossesTax	18000000	USD
CY2012	mbi	Other Comprehensive Income Unrealized Holding Gain Loss Arising During Period On Securities With Other Than Temporary Impairment Losses After Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossArisingDuringPeriodOnSecuritiesWithOtherThanTemporaryImpairmentLossesAfterTax	32000000	USD
CY2012	mbi	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale And For Writedown Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAociForSaleAndForWritedownOfSecuritiesBeforeTax	-69000000	USD
CY2012	mbi	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale And For Writedown Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAociForSaleAndForWritedownOfSecuritiesTax	-24000000	USD
CY2012	mbi	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale And For Writedown Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAociForSaleAndForWritedownOfSecuritiesNetOfTax	-45000000	USD
CY2012	us-gaap	Other Comprehensive Income Foreign Currency Translation Gain Loss Arising During Period Tax OtherComprehensiveIncomeForeignCurrencyTranslationGainLossArisingDuringPeriodTax	-2000000	USD
CY2012	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	26000000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Reclassification Adjustment From Aoci Realized Upon Sale Or Liquidation Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationBeforeTax	0	USD
CY2012	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Reclassification Adjustment From Aoci Realized Upon Sale Or Liquidation Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationTax	0	USD
CY2012	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Reclassification Adjustment From Aoci Realized Upon Sale Or Liquidation Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationNetOfTax	0	USD
CY2012	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	232000000	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	1466000000	USD
CY2011Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1723000000	USD
CY2012Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3194000000	USD
CY2012	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	7000000	USD
CY2012	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	2000000	USD
CY2013	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	4000000	USD
CY2013	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	7000000	USD
CY2013	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	4000000	USD
CY2012	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	7000000	USD
CY2014Q4	us-gaap	Reinsurance Recoverables ReinsuranceRecoverables	7000000	USD
CY2014	us-gaap	Direct Premiums Earned DirectPremiumsEarned	407000000	USD
CY2013	us-gaap	Direct Premiums Earned DirectPremiumsEarned	400000000	USD
CY2012	us-gaap	Direct Premiums Earned DirectPremiumsEarned	489000000	USD
CY2014	us-gaap	Assumed Premiums Earned AssumedPremiumsEarned	2000000	USD
CY2013	us-gaap	Assumed Premiums Earned AssumedPremiumsEarned	67000000	USD
CY2012	us-gaap	Assumed Premiums Earned AssumedPremiumsEarned	130000000	USD
CY2014	mbi	Gross Premium Earned Financial Guarantee Insurance Contracts GrossPremiumEarnedFinancialGuaranteeInsuranceContracts	409000000	USD
CY2013	mbi	Gross Premium Earned Financial Guarantee Insurance Contracts GrossPremiumEarnedFinancialGuaranteeInsuranceContracts	467000000	USD
CY2012	mbi	Gross Premium Earned Financial Guarantee Insurance Contracts GrossPremiumEarnedFinancialGuaranteeInsuranceContracts	619000000	USD
CY2014	us-gaap	Ceded Premiums Earned CededPremiumsEarned	12000000	USD
CY2013	us-gaap	Ceded Premiums Earned CededPremiumsEarned	10000000	USD
CY2012	us-gaap	Ceded Premiums Earned CededPremiumsEarned	14000000	USD
CY2014	us-gaap	Premiums Earned Net PremiumsEarnedNet	397000000	USD
CY2013	us-gaap	Premiums Earned Net PremiumsEarnedNet	457000000	USD
CY2012	us-gaap	Premiums Earned Net PremiumsEarnedNet	605000000	USD
CY2012	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents Continuing Operations EffectOfExchangeRateOnCashAndCashEquivalentsContinuingOperations	0	USD
CY2012	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	357000000	USD
CY2011Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	633000000	USD
CY2013Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1258000000	USD
CY2012Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	990000000	USD
CY2014	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2014Q2	dei	Entity Public Float EntityPublicFloat	1563112068	USD
CY2012	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions No Previous Impairment OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsNoPreviousImpairment	0	USD
CY2012	mbi	Additions For Credit Loss Impairments Recognized In Prior Periods For Securities That Were Reimpaired With Non Credit Component In Current Period AdditionsForCreditLossImpairmentsRecognizedInPriorPeriodsForSecuritiesThatWereReimpairedWithNonCreditComponentInCurrentPeriod	0	USD
CY2012	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Securities Sold OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsSecuritiesSold	41000000	USD
CY2014	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Change In Status OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsChangeInStatus	0	USD
CY2013	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Change In Status OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsChangeInStatus	0	USD
CY2012	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Change In Status OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsChangeInStatus	111000000	USD
CY2014	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions Additional Credit Losses OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsAdditionalCreditLosses	1000000	USD
CY2013	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions Additional Credit Losses OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsAdditionalCreditLosses	0	USD
CY2012	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions Additional Credit Losses OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsAdditionalCreditLosses	8000000	USD
CY2012	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Cash Flows OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsCashFlows	0	USD
CY2011Q4	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	341000000	USD
CY2014	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2014Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	592000000	USD
CY2014Q4	mbi	Transactions Guaranteed On Behalf Of Various Affiliates TransactionsGuaranteedOnBehalfOfVariousAffiliates	2600000000	USD
CY2013Q4	mbi	Transactions Guaranteed On Behalf Of Various Affiliates TransactionsGuaranteedOnBehalfOfVariousAffiliates	3500000000	USD
CY2014	us-gaap	Derivative Lower Remaining Maturity Range1 DerivativeLowerRemainingMaturityRange1	P1Y0M0D
CY2014	us-gaap	Derivative Higher Remaining Maturity Range1 DerivativeHigherRemainingMaturityRange1	P68Y0M0D
CY2013Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	1200000000	USD
CY2013Q4	mbi	Aggregate Amount Of Insured Par Outstanding Ceded To Reinsurers AggregateAmountOfInsuredParOutstandingCededToReinsurers	7100000000	USD
CY2014	mbi	Aggregate Amount Insurance In Force Outstanding Ceded To Reinsurers AggregateAmountInsuranceInForceOutstandingCededToReinsurers	11100000000	USD
CY2013	mbi	Aggregate Amount Insurance In Force Outstanding Ceded To Reinsurers AggregateAmountInsuranceInForceOutstandingCededToReinsurers	12700000000	USD
CY2014	us-gaap	Insurance Recoveries InsuranceRecoveries	-5000000	USD
CY2013	us-gaap	Insurance Recoveries InsuranceRecoveries	4000000	USD
CY2012	us-gaap	Insurance Recoveries InsuranceRecoveries	4000000	USD
CY2014	us-gaap	Fees And Commissions Other FeesAndCommissionsOther	2000000	USD
CY2013	us-gaap	Fees And Commissions Other FeesAndCommissionsOther	2000000	USD
CY2012	us-gaap	Fees And Commissions Other FeesAndCommissionsOther	3000000	USD
CY2014Q4	us-gaap	Surplus Notes SurplusNotes	940000000	USD
CY2013Q4	us-gaap	Surplus Notes SurplusNotes	940000000	USD
CY2014Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	1810000000	USD
CY2013Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	1702000000	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	56000000	USD
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-176000000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	90000000	USD
CY2014	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-17000000	USD
CY2014	mbi	Percentage Of Policyholders Surplus PercentageOfPolicyholdersSurplus	0.1	pure
CY2013	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-126000000	USD
CY2013	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	16000000	USD
CY2014	mbi	Percentage Of Adjusted Net Investment Income PercentageOfAdjustedNetInvestmentIncome	1	pure
CY2012	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	162000000	USD
CY2012	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-70000000	USD
CY2013Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	592000000	USD
CY2014	mbi	Maximum Percentage Of Notional Asset Swap MaximumPercentageOfNotionalAssetSwap	0.05	pure
CY2014	us-gaap	Direct Premiums Written DirectPremiumsWritten	-18000000	USD
CY2013	us-gaap	Direct Premiums Written DirectPremiumsWritten	-40000000	USD
CY2012	us-gaap	Direct Premiums Written DirectPremiumsWritten	17000000	USD
CY2014	us-gaap	Ceded Premiums Written CededPremiumsWritten	2000000	USD
CY2013	us-gaap	Ceded Premiums Written CededPremiumsWritten	2000000	USD
CY2012	us-gaap	Ceded Premiums Written CededPremiumsWritten	2000000	USD
CY2014	us-gaap	Assumed Premiums Written AssumedPremiumsWritten	0	USD
CY2013	us-gaap	Assumed Premiums Written AssumedPremiumsWritten	1000000	USD
CY2012	us-gaap	Assumed Premiums Written AssumedPremiumsWritten	2000000	USD
CY2014	us-gaap	Premiums Written Net PremiumsWrittenNet	-20000000	USD
CY2013	us-gaap	Premiums Written Net PremiumsWrittenNet	-41000000	USD
CY2012	us-gaap	Premiums Written Net PremiumsWrittenNet	17000000	USD
CY2014Q4	us-gaap	Summary Of Investments Other Than Investments In Related Parties Cost SummaryOfInvestmentsOtherThanInvestmentsInRelatedPartiesCost	6769000000	USD
CY2014Q4	us-gaap	Summary Of Investments Other Than Investments In Related Parties Fair Value SummaryOfInvestmentsOtherThanInvestmentsInRelatedPartiesFairValue	6830000000	USD
CY2014Q4	us-gaap	Summary Of Investments Other Than Investments In Related Parties Carrying Amount SummaryOfInvestmentsOtherThanInvestmentsInRelatedPartiesCarryingAmount	6830000000	USD
CY2013Q4	mbi	Number Of Variable Interest Entities Consolidated NumberOfVariableInterestEntitiesConsolidated	0	pure
CY2013	mbi	Number Of Credit Support Annexes NumberOfCreditSupportAnnexes	1	pure
CY2014	mbi	Number Of Credit Support Annexes NumberOfCreditSupportAnnexes	1	pure
CY2014Q4	mbi	Aggregate Amount Of Insured Par Outstanding Ceded To Reinsurers AggregateAmountOfInsuredParOutstandingCededToReinsurers	6087000000	USD
CY2014Q4	mbi	Reinsurance Recoverables Secured By Letters Of Credit Amount ReinsuranceRecoverablesSecuredByLettersOfCreditAmount	34000000	USD
CY2014	mbi	Premiums Written Financial Guarantee Insurance Contracts Percentage Of Amount Assumed To Net PremiumsWrittenFinancialGuaranteeInsuranceContractsPercentageOfAmountAssumedToNet	0	pure
CY2013	mbi	Premiums Written Financial Guarantee Insurance Contracts Percentage Of Amount Assumed To Net PremiumsWrittenFinancialGuaranteeInsuranceContractsPercentageOfAmountAssumedToNet	-0.02	pure
CY2012	mbi	Premiums Written Financial Guarantee Insurance Contracts Percentage Of Amount Assumed To Net PremiumsWrittenFinancialGuaranteeInsuranceContractsPercentageOfAmountAssumedToNet	0.12	pure
CY2013	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	43210917	shares
CY2012	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	33743884	shares
CY2014	mbi	Unvested Restricted Stock And Units That Receive Nonforfeitable Dividends Or Dividend Equivalents That Have Met Service Condition UnvestedRestrictedStockAndUnitsThatReceiveNonforfeitableDividendsOrDividendEquivalentsThatHaveMetServiceCondition	412769	shares
CY2013	mbi	Unvested Restricted Stock And Units That Receive Nonforfeitable Dividends Or Dividend Equivalents That Have Met Service Condition UnvestedRestrictedStockAndUnitsThatReceiveNonforfeitableDividendsOrDividendEquivalentsThatHaveMetServiceCondition	629896	shares
CY2012	mbi	Unvested Restricted Stock And Units That Receive Nonforfeitable Dividends Or Dividend Equivalents That Have Met Service Condition UnvestedRestrictedStockAndUnitsThatReceiveNonforfeitableDividendsOrDividendEquivalentsThatHaveMetServiceCondition	506714	shares
CY2012	us-gaap	Undistributed Earnings Allocated To Participating Securities UndistributedEarningsAllocatedToParticipatingSecurities	32000000	USD
CY2012	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	1202000000	USD
CY2012	mbi	Undistributed Earnings Allocated To Participating Securities Diluted UndistributedEarningsAllocatedToParticipatingSecuritiesDiluted	32000000	USD
CY2014	us-gaap	Fair Value Adjustment Of Warrants FairValueAdjustmentOfWarrants	28000000	USD
CY2013	us-gaap	Fair Value Adjustment Of Warrants FairValueAdjustmentOfWarrants	0	USD
CY2012	us-gaap	Fair Value Adjustment Of Warrants FairValueAdjustmentOfWarrants	0	USD
CY2012	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	1202000000	USD
CY2012	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1062395	shares
CY2012	us-gaap	Incremental Common Shares Attributable To Call Options And Warrants IncrementalCommonSharesAttributableToCallOptionsAndWarrants	0	shares
CY2014Q4	us-gaap	Warrants And Rights Outstanding WarrantsAndRightsOutstanding	28000000	USD
CY2013Q4	us-gaap	Warrants And Rights Outstanding WarrantsAndRightsOutstanding	59000000	USD
CY2013Q4	us-gaap	Participating Policies Amount In Force ParticipatingPoliciesAmountInForce	554300000000	USD
CY2012	mbi	Expenses Of Consolidated Vies ExpensesOfConsolidatedVies	72000000	USD
CY2012	mbi	Expense From Transactions With Other Operating Segments Of Same Entity ExpenseFromTransactionsWithOtherOperatingSegmentsOfSameEntity	0	USD
CY2012	mbi	Segment Expense SegmentExpense	837000000	USD
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	6425073	shares
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	5963268	shares
CY2013Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	3715406	shares
CY2014Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	2548000	shares
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	1751173	shares
CY2013Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	1752311	shares
CY2014Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	1798000	shares
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	21.333
CY2013Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	20.6883
CY2014Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	10.9888
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	45.0174
CY2013Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	38.512
CY2014Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	13.466
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	19.0485
CY2012	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice	50.833
CY2013	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice	16.3382
CY2014	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice	61.5815
CY2014	mbi	Percentage Of Voting Interests Of Company PercentageOfVotingInterestsOfCompany	0.1	pure
CY2014	mbi	Number Of Surety Bonds NumberOfSuretyBonds	5
CY2014Q4	mbi	Outstanding Exposure On Surety Bonds OutstandingExposureOnSuretyBonds	340000000	USD
CY2014	mbi	Loans To Executive Officers Or Directors LoansToExecutiveOfficersOrDirectors	0	securityloan
CY2014	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	400000	shares
CY2014	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	767406	shares
CY2013	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	0	shares
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	2247862	shares
CY2012	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	0	shares
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	461805	shares
CY2014	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	4.02
CY2013	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	0
CY2012	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	0
CY2014Q4	mbi	Incentive Stock Options And Non Qualified Stock Options Granted Price At Fair Value Of Common Stock Percentage IncentiveStockOptionsAndNonQualifiedStockOptionsGrantedPriceAtFairValueOfCommonStockPercentage	1	pure
CY2012	us-gaap	Revenue Other Financial Services RevenueOtherFinancialServices	880000000	USD
CY2012	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	1464000000	USD
CY2012	mbi	Net Gains Losses On Financial Instruments At Fair Value And Foreign Exchange NetGainsLossesOnFinancialInstrumentsAtFairValueAndForeignExchange	55000000	USD
CY2012	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet	105000000	USD
CY2012	us-gaap	Other Income OtherIncome	7000000	USD
CY2012	mbi	Revenues Of Consolidated Vies RevenuesOfConsolidatedVies	134000000	USD
CY2012	mbi	Revenue From Transactions With Other Operating Segments Of Same Entity RevenueFromTransactionsWithOtherOperatingSegmentsOfSameEntity	0	USD
CY2012	mbi	Segment Revenue SegmentRevenue	2435000000	USD
CY2012	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	431000000	USD
CY2012	us-gaap	Interest Expense InterestExpense	284000000	USD
CY2012	mbi	Segment Pretax Income Loss SegmentPretaxIncomeLoss	1598000000	USD
CY2012	mbi	Premiums Earned Net Financial Guarantee Insurance Contracts And Insured Derivatives PremiumsEarnedNetFinancialGuaranteeInsuranceContractsAndInsuredDerivatives	661000000	USD
CY2012Q4	us-gaap	Assets Assets	21724000000	USD
CY2013	us-gaap	Insured Financial Obligations With Credit Deterioration Remaining Weighted Average Contract Period InsuredFinancialObligationsWithCreditDeteriorationRemainingWeightedAverageContractPeriod	P9Y8M12D
CY2013Q4	mbi	Insurance Loss Recoverable And Changes In Recoveries Of Unpaid Losses InsuranceLossRecoverableAndChangesInRecoveriesOfUnpaidLosses	900000000	USD
CY2012	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	3000000	USD
CY2012	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	2000000	USD
CY2012	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	-6000000	USD
CY2012	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	350000000	USD
CY2012	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	0	USD
CY2012	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	15000000	USD
CY2013	mbi	Change In Unrealized Gain Loss On Investments ChangeInUnrealizedGainLossOnInvestments	81000000	USD
CY2014	mbi	Change In Unrealized Gain Loss On Investments ChangeInUnrealizedGainLossOnInvestments	-89000000	USD
CY2012	mbi	Change In Unrealized Gain Loss On Investments ChangeInUnrealizedGainLossOnInvestments	-86000000	USD
CY2012	us-gaap	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Tax Portion Attributable To Parent OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossTaxPortionAttributableToParent	-42000000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	-2000000	USD
CY2012	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	7000000	USD
CY2012	us-gaap	Income Tax Effects Allocated Directly To Equity IncomeTaxEffectsAllocatedDirectlyToEquity	133000000	USD
CY2012	us-gaap	Income Tax Expense Benefit Intraperiod Tax Allocation IncomeTaxExpenseBenefitIntraperiodTaxAllocation	497000000	USD
CY2013	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35	pure
CY2013	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	-0.011	pure
CY2013	mbi	Effective Income Tax Rate Reconciliation Mark To Market On Warrants EffectiveIncomeTaxRateReconciliationMarkToMarketOnWarrants	0.038	pure
CY2013	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.126	pure
CY2013	mbi	Effective Income Taxrate Reconciliation Uncertain Tax Positions EffectiveIncomeTaxrateReconciliationUncertainTaxPositions	0.028	pure
CY2013	us-gaap	Effective Income Tax Rate Reconciliation Prior Year Income Taxes EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes	0	pure
CY2013	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.008	pure
CY2013	us-gaap	Effective Income Tax Rate Reconciliation Repatriation Of Foreign Earnings EffectiveIncomeTaxRateReconciliationRepatriationOfForeignEarnings	0.114	pure
CY2013	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.006	pure
CY2013	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.399	pure
CY2014	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.112	pure
CY2013Q4	mbi	Deferred Tax Liabilities Unearned Premium Revenue DeferredTaxLiabilitiesUnearnedPremiumRevenue	220000000	USD
CY2013Q4	mbi	Deferred Tax Liabilities Deferral Of Cod Income DeferredTaxLiabilitiesDeferralOfCodIncome	114000000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Deferred Policy Acquisition Cost DeferredTaxLiabilitiesDeferredExpenseDeferredPolicyAcquisitionCost	87000000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Other Comprehensive Income DeferredTaxLiabilitiesOtherComprehensiveIncome	0	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	9000000	USD
CY2013Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	478000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	31000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Loss Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsLossReserves	85000000	USD
CY2013Q4	mbi	Deferred Tax Assets Nols And Tax Credit Carryforwards DeferredTaxAssetsNolsAndTaxCreditCarryforwards	917000000	USD
CY2013Q4	mbi	Deferred Tax Assets Capital Loss Carryforwards And Other Than Temporary Impairments DeferredTaxAssetsCapitalLossCarryforwardsAndOtherThanTemporaryImpairments	93000000	USD
CY2013Q4	mbi	Deferred Tax Assets Insured Derivatives DeferredTaxAssetsInsuredDerivatives	400000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Derivative Instruments DeferredTaxAssetsDerivativeInstruments	47000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Other Comprehensive Loss DeferredTaxAssetsOtherComprehensiveLoss	30000000	USD
CY2013Q4	mbi	Deferred Tax Assets Variable Interest Entities DeferredTaxAssetsVariableInterestEntities	55000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	1680000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	93000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	1109000000	USD
CY2014Q4	mbi	Deferred Tax Liabilities Unearned Premium Revenue DeferredTaxLiabilitiesUnearnedPremiumRevenue	196000000	USD
CY2014Q4	mbi	Deferred Tax Liabilities Deferral Of Cod Income DeferredTaxLiabilitiesDeferralOfCodIncome	91000000	USD
CY2014Q4	mbi	Deferred Tax Assets Nols And Tax Credit Carryforwards DeferredTaxAssetsNolsAndTaxCreditCarryforwards	1150000000	USD
CY2014Q4	mbi	Deferred Tax Assets Capital Loss Carryforwards And Other Than Temporary Impairments DeferredTaxAssetsCapitalLossCarryforwardsAndOtherThanTemporaryImpairments	6000000	USD
CY2014Q4	mbi	Deferred Tax Assets Insured Derivatives DeferredTaxAssetsInsuredDerivatives	93000000	USD
CY2014Q4	mbi	Deferred Tax Assets Variable Interest Entities DeferredTaxAssetsVariableInterestEntities	25000000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	1009000000	USD
CY2011Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	47000000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	26000000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	26000000	USD
CY2012Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	47000000	USD
CY2012	mbi	Increase Decrease In Net Income Loss IncreaseDecreaseInNetIncomeLoss	60000000	USD
CY2012	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	-2261000000	USD
CY2012	us-gaap	Proceeds From Insurance Premiums Collected ProceedsFromInsurancePremiumsCollected	281000000	USD
CY2014	us-gaap	Proceeds From Interest And Dividends Received ProceedsFromInterestAndDividendsReceived	419000000	USD
CY2013	us-gaap	Proceeds From Interest And Dividends Received ProceedsFromInterestAndDividendsReceived	426000000	USD
CY2012	us-gaap	Proceeds From Interest And Dividends Received ProceedsFromInterestAndDividendsReceived	594000000	USD
CY2014	us-gaap	Proceeds From Insurance Settlement Operating Activities ProceedsFromInsuranceSettlementOperatingActivities	30000000	USD
CY2013	us-gaap	Proceeds From Insurance Settlement Operating Activities ProceedsFromInsuranceSettlementOperatingActivities	0	USD
CY2012	us-gaap	Proceeds From Insurance Settlement Operating Activities ProceedsFromInsuranceSettlementOperatingActivities	0	USD
CY2014Q4	mbi	Aggregate Principal Amount In Excess Of Failureto Make Payment At Maturity AggregatePrincipalAmountInExcessOfFailuretoMakePaymentAtMaturity	10000000	USD
CY2014	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	254000000	USD
CY2013	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-213000000	USD
CY2013	mbi	Payments For Net Realized Losses On Insured Derivatives Paid PaymentsForNetRealizedLossesOnInsuredDerivativesPaid	458000000	USD
CY2012	mbi	Payments For Net Realized Losses On Insured Derivatives Paid PaymentsForNetRealizedLossesOnInsuredDerivativesPaid	464000000	USD
CY2013	us-gaap	Payments For Losses And Loss Adjustment Expense PaymentsForLossesAndLossAdjustmentExpense	443000000	USD
CY2012	us-gaap	Payments For Losses And Loss Adjustment Expense PaymentsForLossesAndLossAdjustmentExpense	895000000	USD
CY2014	us-gaap	Payments To Acquire Loans Receivable PaymentsToAcquireLoansReceivable	310000000	USD
CY2013	us-gaap	Payments To Acquire Loans Receivable PaymentsToAcquireLoansReceivable	0	USD
CY2012	us-gaap	Payments To Acquire Loans Receivable PaymentsToAcquireLoansReceivable	0	USD
CY2013	us-gaap	Proceeds From Sale And Collection Of Loans Receivable ProceedsFromSaleAndCollectionOfLoansReceivable	280000000	USD
CY2012	us-gaap	Proceeds From Sale And Collection Of Loans Receivable ProceedsFromSaleAndCollectionOfLoansReceivable	278000000	USD
CY2012	mbi	Proceeds From Consolidation Of Variable Interest Entity ProceedsFromConsolidationOfVariableInterestEntity	0	USD
CY2012	mbi	Payments For Deconsolidation Of Variable Interest Entity PaymentsForDeconsolidationOfVariableInterestEntity	51000000	USD
CY2013	us-gaap	Payments For Proceeds From Derivative Instrument Investing Activities PaymentsForProceedsFromDerivativeInstrumentInvestingActivities	54000000	USD
CY2012	us-gaap	Payments For Proceeds From Derivative Instrument Investing Activities PaymentsForProceedsFromDerivativeInstrumentInvestingActivities	288000000	USD
CY2012	us-gaap	Increase Decrease Cash Collateral From Counterparties IncreaseDecreaseCashCollateralFromCounterparties	-285000000	USD
CY2012	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	7000000	USD
CY2012	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	4195000000	USD
CY2014	us-gaap	Proceeds From Issuance Of Other Long Term Debt ProceedsFromIssuanceOfOtherLongTermDebt	30000000	USD
CY2013	us-gaap	Proceeds From Issuance Of Other Long Term Debt ProceedsFromIssuanceOfOtherLongTermDebt	31000000	USD
CY2012	us-gaap	Proceeds From Issuance Of Other Long Term Debt ProceedsFromIssuanceOfOtherLongTermDebt	36000000	USD
CY2012	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	688000000	USD
CY2012	us-gaap	Repayments Of Medium Term Notes RepaymentsOfMediumTermNotes	102000000	USD
CY2012	us-gaap	Repayments Of Notes Payable RepaymentsOfNotesPayable	1229000000	USD
CY2012	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	-2811000000	USD
CY2008Q1	us-gaap	Surplus Notes SurplusNotes	1000000000	USD
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CY2012	us-gaap	Interest Paid Net InterestPaidNet	400000000	USD
CY2014	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	17000000	USD
CY2013	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	1000000	USD
CY2012	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	6000000	USD
CY2014	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	-333000000	USD
CY2013	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	1829000000	USD
CY2012	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	-1027000000	USD
CY2012	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	3086000000	USD
CY2014	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	757000000	USD
CY2012	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	4658000000	USD
CY2012	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	609000000	USD
CY2012	mbi	Payments To Acquire Fair Value Option And Trading Securities PaymentsToAcquireFairValueOptionAndTradingSecurities	346000000	USD
CY2012	mbi	Proceeds From Sales Maturities And Paydowns Of Fair Value And Trading Securities ProceedsFromSalesMaturitiesAndPaydownsOfFairValueAndTradingSecurities	960000000	USD
CY2012	us-gaap	Payments For Proceeds From Short Term Investments PaymentsForProceedsFromShortTermInvestments	-739000000	USD
CY2012	us-gaap	Proceeds From Sale And Maturity Of Held To Maturity Securities ProceedsFromSaleAndMaturityOfHeldToMaturitySecurities	1014000000	USD
CY2012	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	176000000	USD
CY2014	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax	-40000000	USD
CY2013	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax	3000000	USD
CY2012	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax	24000000	USD
CY2012	us-gaap	Available For Sale Securities Gross Realized Gains Losses Sale Proceeds AvailableForSaleSecuritiesGrossRealizedGainsLossesSaleProceeds	4658000000	USD
CY2012	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	196000000	USD
CY2012	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	127000000	USD
CY2013	mbi	Weighted Average Contractual Maturity Period Of Securities Unrealized Loss Position WeightedAverageContractualMaturityPeriodOfSecuritiesUnrealizedLossPosition	P18Y
CY2014Q4	us-gaap	Participating Policies Amount In Force ParticipatingPoliciesAmountInForce	437800000000	USD
CY2014Q4	us-gaap	Liabilities Of Assets Held For Sale LiabilitiesOfAssetsHeldForSale	772000000	USD
CY2013Q4	us-gaap	Liabilities Of Assets Held For Sale LiabilitiesOfAssetsHeldForSale	0	USD
CY2014	us-gaap	Proceeds From Notes Payable ProceedsFromNotesPayable	79000000	USD
CY2013	us-gaap	Proceeds From Notes Payable ProceedsFromNotesPayable	0	USD
CY2012	us-gaap	Proceeds From Notes Payable ProceedsFromNotesPayable	0	USD
CY2014	us-gaap	Proceeds From Payments For In Securities Sold Under Agreements To Repurchase ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase	0	USD
CY2013	us-gaap	Proceeds From Payments For In Securities Sold Under Agreements To Repurchase ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase	0	USD
CY2012	us-gaap	Proceeds From Payments For In Securities Sold Under Agreements To Repurchase ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase	-287000000	USD
CY2012	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	540000000	USD
CY2012	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
CY2014	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	0	USD
CY2013	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	0	USD
CY2012	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	2000000	USD
CY2014	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	0	USD
CY2013	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	0	USD
CY2012	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	1000000	USD
CY2014Q4	us-gaap	Cash Including Discontinued Operations CashIncludingDiscontinuedOperations	55000000	USD
CY2013Q4	us-gaap	Cash Including Discontinued Operations CashIncludingDiscontinuedOperations	0	USD
CY2012Q4	us-gaap	Cash Including Discontinued Operations CashIncludingDiscontinuedOperations	0	USD
CY2012	us-gaap	Increase Decrease In Premiums Receivable IncreaseDecreaseInPremiumsReceivable	-152000000	USD
CY2012	us-gaap	Increase Decrease In Deferred Policy Acquisition Costs IncreaseDecreaseInDeferredPolicyAcquisitionCosts	-49000000	USD
CY2012	us-gaap	Increase Decrease In Unearned Premiums IncreaseDecreaseInUnearnedPremiums	-600000000	USD
CY2012	us-gaap	Increase Decrease In Loss And Loss Adjustment Expense Reserve IncreaseDecreaseInLossAndLossAdjustmentExpenseReserve	-17000000	USD
CY2012	mbi	Increase Decrease In Insurance Loss Recoverable IncreaseDecreaseInInsuranceLossRecoverable	602000000	USD
CY2012	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-3000000	USD
CY2014	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-36000000	USD
CY2013	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	43000000	USD
CY2012	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-23000000	USD
CY2014	mbi	Net Other Than Temporary Impairments NetOtherThanTemporaryImpairments	15000000	USD
CY2013	mbi	Net Other Than Temporary Impairments NetOtherThanTemporaryImpairments	0	USD
CY2012	mbi	Net Other Than Temporary Impairments NetOtherThanTemporaryImpairments	105000000	USD
CY2012	mbi	Realized Gains Losses And Other Settlements On Insured Derivatives Total RealizedGainsLossesAndOtherSettlementsOnInsuredDerivativesTotal	0	USD
CY2012	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	1870000000	USD
CY2012	mbi	Increase Decrease In Net Gains Losses On Financial Instruments At Fair Value And Foreign Exchange IncreaseDecreaseInNetGainsLossesOnFinancialInstrumentsAtFairValueAndForeignExchange	73000000	USD
CY2012	mbi	Increase Decrease In Other Net Realized Gains Losses IncreaseDecreaseInOtherNetRealizedGainsLosses	-7000000	USD
CY2012	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	365000000	USD
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CY2013	mbi	Adjustment Gains Losses On Extinguishment Of Debt AdjustmentGainsLossesOnExtinguishmentOfDebt	61000000	USD
CY2012	mbi	Adjustment Gains Losses On Extinguishment Of Debt AdjustmentGainsLossesOnExtinguishmentOfDebt	49000000	USD
CY2012	mbi	Vie Interest Net VieInterestNet	140000000	USD
CY2012	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-138000000	USD
CY2013	us-gaap	Financial Guarantee Insurance Contracts Claim Liability Weighted Average Risk Free Discount Rate FinancialGuaranteeInsuranceContractsClaimLiabilityWeightedAverageRiskFreeDiscountRate	0.0237	pure
CY2014Q4	mbi	Insurance Loss Recoverable And Changes In Recoveries Of Unpaid Losses InsuranceLossRecoverableAndChangesInRecoveriesOfUnpaidLosses	680000000	USD
CY2012Q4	mbi	Insurance Loss Recoverable And Changes In Recoveries Of Unpaid Losses InsuranceLossRecoverableAndChangesInRecoveriesOfUnpaidLosses	3980000000	USD
CY2013Q4	us-gaap	Other Assets Held For Sale Current OtherAssetsHeldForSaleCurrent	29000000	USD
CY2014Q4	us-gaap	Other Assets Held For Sale Current OtherAssetsHeldForSaleCurrent	802000000	USD
CY2014Q4	mbi	Senior Notes At Par Value Owned By National SeniorNotesAtParValueOwnedByNational	136000000	USD
CY2014Q4	mbi	Surplus Notes At Par Value Owned By Corporate Segment SurplusNotesAtParValueOwnedByCorporateSegment	13000000	USD
CY2014Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	11000000	USD
CY2014Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	8000000	USD
CY2014	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P1Y6M29D
CY2014Q4	mbi	Surplus Notes Repurchased At Outstanding Par Value SurplusNotesRepurchasedAtOutstandingParValue	47000000	USD
CY2014	mbi	Annual Compensation Maximum Pension Per Employee Amount AnnualCompensationMaximumPensionPerEmployeeAmount	1500000	USD
CY2014	mbi	Proceeds From Sales Maturities Prepayments And Calls Of Other Investments ProceedsFromSalesMaturitiesPrepaymentsAndCallsOfOtherInvestments	1000000	USD
CY2013	mbi	Proceeds From Sales Maturities Prepayments And Calls Of Other Investments ProceedsFromSalesMaturitiesPrepaymentsAndCallsOfOtherInvestments	0	USD
CY2012	mbi	Proceeds From Sales Maturities Prepayments And Calls Of Other Investments ProceedsFromSalesMaturitiesPrepaymentsAndCallsOfOtherInvestments	0	USD
CY2014Q4	mbi	Other Liabilities And Derivative Liabilities Vie After Counterparty Netting And Embedded Reclass OtherLiabilitiesAndDerivativeLiabilitiesVieAfterCounterpartyNettingAndEmbeddedReclass	437000000	USD
CY2014	mbi	Weighted Average Contractual Maturity Period Of Securities Unrealized Loss Position WeightedAverageContractualMaturityPeriodOfSecuritiesUnrealizedLossPosition	P13Y
CY2013	mbi	Commuted Gross Insured Exposure CommutedGrossInsuredExposure	20000000000	USD
CY2012	mbi	Commuted Gross Insured Exposure CommutedGrossInsuredExposure	13400000000	USD
CY2014Q4	us-gaap	Operating Loss Carryforwards OperatingLossCarryforwards	3200000000	USD
CY2014	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35	pure
CY2014	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	-0.005	pure
CY2014	mbi	Effective Income Tax Rate Reconciliation Mark To Market On Warrants EffectiveIncomeTaxRateReconciliationMarkToMarketOnWarrants	-0.016	pure
CY2014	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.135	pure
CY2014	mbi	Effective Income Taxrate Reconciliation Uncertain Tax Positions EffectiveIncomeTaxrateReconciliationUncertainTaxPositions	-0.091	pure
CY2014	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.005	pure
CY2014	us-gaap	Effective Income Tax Rate Reconciliation Prior Year Income Taxes EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes	0	pure
CY2014	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.005	pure
CY2014	us-gaap	Effective Income Tax Rate Reconciliation Repatriation Of Foreign Earnings EffectiveIncomeTaxRateReconciliationRepatriationOfForeignEarnings	0	pure
CY2014	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.009	pure
CY2012	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35	pure
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	-0.007	pure
CY2012	mbi	Effective Income Tax Rate Reconciliation Mark To Market On Warrants EffectiveIncomeTaxRateReconciliationMarkToMarketOnWarrants	-0.007	pure
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.056	pure
CY2012	mbi	Effective Income Taxrate Reconciliation Uncertain Tax Positions EffectiveIncomeTaxrateReconciliationUncertainTaxPositions	-0.001	pure
CY2012	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.001	pure
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Prior Year Income Taxes EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes	-0.038	pure
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.012	pure
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Repatriation Of Foreign Earnings EffectiveIncomeTaxRateReconciliationRepatriationOfForeignEarnings	0	pure
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.002	pure
CY2012	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.228	pure
CY2013	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.02	pure
CY2014	us-gaap	Financial Guarantee Insurance Contracts Premium Received Over Contract Period Premium Receivable Weighted Average Collection Period1 FinancialGuaranteeInsuranceContractsPremiumReceivedOverContractPeriodPremiumReceivableWeightedAverageCollectionPeriod1	P9Y2M4D
CY2013	us-gaap	Financial Guarantee Insurance Contracts Premium Received Over Contract Period Premium Receivable Weighted Average Collection Period1 FinancialGuaranteeInsuranceContractsPremiumReceivedOverContractPeriodPremiumReceivableWeightedAverageCollectionPeriod1	P9Y2M15D
CY2012	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	50000000	USD
CY2013	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	117000000	USD
CY2014	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	133000000	USD
CY2014Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	246000000	USD
CY2013	mbi	Loans To Executive Officers Or Directors LoansToExecutiveOfficersOrDirectors	0	securityloan
CY2013Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax	22000000	USD
CY2014Q4	us-gaap	Deferred Tax Liabilities Undistributed Foreign Earnings DeferredTaxLiabilitiesUndistributedForeignEarnings	59000000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Undistributed Foreign Earnings DeferredTaxLiabilitiesUndistributedForeignEarnings	48000000	USD
CY2014Q4	mbi	Surplus Notes Weighted Average Price Per Unit SurplusNotesWeightedAveragePricePerUnit	77.08
CY2015Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	185663370	shares

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$MBI
MBIA INC Stock $mbi

2013 Q4 Form 10-K Financial Statement

#000119312515073382 Filed on March 02, 2015

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$MBI MBIA INC Stock $mbi

2013 Q4 Form 10-K Financial Statement

#000119312515073382 Filed on March 02, 2015

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$MBI
MBIA INC Stock $mbi