$mbi 2012 10-K

Concept	2012	2011 Q4	2011
Revenue	$2.435B	-$1.167B	-$1.557B
YoY Change	-256.39%	-235.07%	-274.16%
Cost Of Revenue	$50.00M		-$80.00M
YoY Change	-162.5%
Gross Profit	$2.385B		-$1.477B
YoY Change	-261.48%
Gross Profit Margin	97.95%
Selling, General & Admin	$431.0M		$371.0M
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	$431.0M	-$185.0M	$371.0M
YoY Change	16.17%	-185.25%	-38.68%
Operating Profit	$1.954B		-$1.848B
YoY Change	-205.74%
Interest Expense	$284.0M	-$92.00M	$300.0M
YoY Change	-5.33%	-3.16%	-178.13%
% of Operating Profit	14.53%
Other Income/Expense, Net
YoY Change
Pretax Income	$1.598B	-$1.074B	-$2.239B
YoY Change	-171.37%	-294.57%	2256.84%
Income Tax	$364.0M	-$448.0M	-$920.0M
% Of Pretax Income	22.78%
Net Earnings	$1.234B	-$626.0M	-$1.319B
YoY Change	-193.56%	-238.8%	-2588.68%
Net Earnings / Revenue	50.68%
Basic Earnings Per Share	$6.36		-$6.85
Diluted Earnings Per Share	$6.33	-$3.238M	-$6.85
COMMON SHARES
Basic Shares Outstanding	188.8M shares		192.5M shares
Diluted Shares Outstanding	189.9M shares		192.5M shares

Concept	2012	2011 Q4	2011
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$814.0M	$633.0M	$473.0M
Short-Term Investments
Other Short-Term Assets		$88.00M	$88.00M
YoY Change		-9.28%	-9.28%
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets		$3.166B	$3.166B
YoY Change		20.11%	20.11%
LONG-TERM ASSETS
Property, Plant & Equipment	$69.00M	$69.00M	$69.00M
YoY Change	0.0%	-2.82%	-2.82%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$14.02B	$18.98B	$18.98B
YoY Change	-26.12%	-22.76%	-22.75%
Other Assets	$1.199B	$1.745B	$1.745B
YoY Change	-31.29%	92.18%	92.18%
Total Long-Term Assets		$23.71B	$23.71B
YoY Change		-20.02%	-20.02%
TOTAL ASSETS
Total Short-Term Assets		$3.166B	$3.166B
Total Long-Term Assets		$23.71B	$23.71B
Total Assets	$21.72B	$26.87B	$26.87B
YoY Change	-19.16%	-16.75%	-16.75%
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		-100.0%	-100.0%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities		$3.000M	$59.00M
YoY Change		-96.1%	-23.38%
LONG-TERM LIABILITIES
Long-Term Debt	$11.40B	$14.13B	$14.13B
YoY Change	-19.34%	-2.82%	-2.82%
Other Long-Term Liabilities	$3.341B	$6.378B	$6.258B
YoY Change	-46.61%	-29.13%	-30.46%
Total Long-Term Liabilities	$14.74B	$20.51B	$20.39B
YoY Change	-27.71%	-12.88%	-13.39%
TOTAL LIABILITIES
Total Short-Term Liabilities		$3.000M	$59.00M
Total Long-Term Liabilities	$14.74B	$20.51B	$20.39B
Total Liabilities	$18.53B	$25.15B	$25.15B
YoY Change	-26.32%	-14.55%	-14.55%
SHAREHOLDERS EQUITY
Retained Earnings		$805.0M
YoY Change
Common Stock		$275.0M
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)		$2.276B
YoY Change
Treasury Stock Shares		81.75M shares
Shareholders Equity	$3.194B	$1.700B	$1.723B
YoY Change
Total Liabilities & Shareholders Equity	$21.72B	$26.87B	$26.87B
YoY Change	-19.16%	-16.75%	-16.75%

Concept	2012	2011 Q4	2011
OPERATING ACTIVITIES
Net Income	$1.234B	-$626.0M	-$1.319B
YoY Change	-193.56%	-238.8%	-2588.68%
Depreciation, Depletion And Amortization
YoY Change
Cash From Operating Activities	-$1.027B	-$1.427B	-$2.627B
YoY Change	-60.91%	172.33%	177.7%
INVESTING ACTIVITIES
Capital Expenditures	$7.000M	-$2.000M	$5.000M
YoY Change	40.0%	0.0%	0.0%
Acquisitions
YoY Change
Other Investing Activities	$4.202B	$1.218B	$4.012B
YoY Change	4.74%	3.92%	-16.12%
Cash From Investing Activities	$4.195B	$1.216B	$4.007B
YoY Change	4.69%	3.93%	-16.14%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net	$0.00		$50.00M
YoY Change	-100.0%		61.29%
Debt Paid & Issued, Net	$540.0M		$65.00M
YoY Change	730.77%		-83.46%
Cash From Financing Activities	-2.811B	-395.0M	-1.877B
YoY Change	49.76%	-57.62%	-46.45%
NET CHANGE
Cash From Operating Activities	-1.027B	-1.427B	-2.627B
Cash From Investing Activities	4.195B	1.216B	4.007B
Cash From Financing Activities	-2.811B	-395.0M	-1.877B
Net Change In Cash	357.0M	-606.0M	-497.0M
YoY Change	-171.83%	111.89%	-251.99%
FREE CASH FLOW
Cash From Operating Activities	-$1.027B	-$1.427B	-$2.627B
Capital Expenditures	$7.000M	-$2.000M	$5.000M
Free Cash Flow	-$1.034B	-$1.425B	-$2.632B
YoY Change	-60.71%	172.99%	176.76%

Frame	Concept Type	Concept / XBRL Key	Value	Unit
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CY2010Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	5.05
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CY2012Q1	mbi	Number Of Causes Of Actions Purported NumberOfCausesOfActionsPurported	7	Event
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CY2009Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	10000000
CY2009Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	803000000
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CY2009Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	7044820	shares
CY2009Q4	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	389000000
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	53.1172
CY2010Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2846000000
CY2010Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	26000000
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CY2010Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1130000000
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	22.1713
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	6650947	shares
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	2050252	shares
CY2010Q4	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	262000000
CY2010Q4	mbi	Amount Of Repurchase Request Resolved Related To Ineligible Loans AmountOfRepurchaseRequestResolvedRelatedToIneligibleLoans	8000000000
CY2011Q4	invest	Derivative Notional Amount DerivativeNotionalAmount	87857000000
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	46.1478
CY2011Q4	us-gaap	Fair Value Option Aggregate Differences Long Term Debt Instruments FairValueOptionAggregateDifferencesLongTermDebtInstruments	8829000000
CY2011Q4	us-gaap	Schedule Of Insured Financial Obligations With Credit Deterioration Number Of Contracts Issued And Outstanding ScheduleOfInsuredFinancialObligationsWithCreditDeteriorationNumberOfContractsIssuedAndOutstanding	191	Issues
CY2011Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	81752966	shares
CY2011Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	400000000	shares
CY2011Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1723000000
CY2011Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	47000000
CY2011Q4	us-gaap	Debt Instrument Unamortized Discount DebtInstrumentUnamortizedDiscount	1000000
CY2011Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000	shares
CY2011Q4	us-gaap	Participating Policies As Percentage Of Gross Insurance In Force ParticipatingPoliciesAsPercentageOfGrossInsuranceInForce	1.000	pure
CY2011Q4	us-gaap	Investments Fair Value Disclosure InvestmentsFairValueDisclosure	16206000000
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CY2011Q4	us-gaap	Schedule Of Insured Financial Obligations With Credit Deterioration Reductions Of Gross Claim Liability Net Discount ScheduleOfInsuredFinancialObligationsWithCreditDeteriorationReductionsOfGrossClaimLiabilityNetDiscount	177000000
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CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	21.3330
CY2011Q4	us-gaap	Minority Interest MinorityInterest	23000000
CY2011Q4	us-gaap	Schedule Of Insured Financial Obligations With Credit Deterioration Reductions Of Gross Claim Liability Gross Potential Recoveries ScheduleOfInsuredFinancialObligationsWithCreditDeteriorationReductionsOfGrossClaimLiabilityGrossPotentialRecoveries	3813000000
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	6425073	shares
CY2011Q4	us-gaap	Schedule Of Insured Financial Obligations With Credit Deterioration Gross Claim Liability ScheduleOfInsuredFinancialObligationsWithCreditDeteriorationGrossClaimLiability	1812000000
CY2011Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	26873000000
CY2011Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	274896162	shares
CY2011Q4	us-gaap	Common Stock Value CommonStockValue	275000000
CY2011Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	2211878	shares
CY2011Q4	us-gaap	Derivative Assets Liabilities At Fair Value Net DerivativeAssetsLiabilitiesAtFairValueNet	4800000000
CY2011Q4	us-gaap	Liabilities Liabilities	25150000000
CY2011Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	901000000
CY2011Q4	us-gaap	Participating Policies Amount In Force ParticipatingPoliciesAmountInForce	840100000000
CY2011Q4	us-gaap	Security Owned And Pledged As Collateral Fair Value SecurityOwnedAndPledgedAsCollateralFairValue	1900000000
CY2011Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	1
CY2011Q4	us-gaap	Treasury Stock Value TreasuryStockValue	2276000000
CY2011Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2011Q4	us-gaap	Preferred Stock Value PreferredStockValue
CY2011Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies
CY2011Q4	us-gaap	Fair Value Option Aggregate Differences Loans And Long Term Receivables FairValueOptionAggregateDifferencesLoansAndLongTermReceivables	1435000000
CY2011Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	3072000000
CY2011Q4	us-gaap	Schedule Of Insured Financial Obligations With Credit Deterioration Net Claim Liability ScheduleOfInsuredFinancialObligationsWithCreditDeteriorationNetClaimLiability	-2178000000
CY2011Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	1
CY2011Q4	us-gaap	Stockholders Equity StockholdersEquity	1700000000
CY2011Q4	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	341000000
CY2011Q4	mbi	Fair Value Liabilities Measured On Recurring Basis FairValueLiabilitiesMeasuredOnRecurringBasis	10946000000
CY2011Q4	mbi	Accumulated Other Comprehensive Income Loss Available For Sale Securities Foreign Exchange AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesForeignExchange	-5000000
CY2011Q4	mbi	Accumulated Other Comprehensive Income Loss Available For Sale Securities Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	-86000000
CY2011Q4	mbi	Accumulated Other Comprehensive Loss Deferred Income Tax AccumulatedOtherComprehensiveLossDeferredIncomeTax	105000000
CY2011Q4	mbi	Aggregate Amount Of Insured Par Outstanding Ceded To Reinsurers AggregateAmountOfInsuredParOutstandingCededToReinsurers	4300000000
CY2011Q4	mbi	Aggregate Principal Amount In Excess Of Failure To Make Payment At Maturity AggregatePrincipalAmountInExcessOfFailureToMakePaymentAtMaturity	10000000
CY2011Q4	mbi	Cash Collateral For Investment Agreements CashCollateralForInvestmentAgreements	224000000
CY2011Q4	mbi	Derivative Fair Value Of Derivative Asset Net Of Counterparty Netting DerivativeFairValueOfDerivativeAssetNetOfCounterpartyNetting	459000000
CY2011Q4	mbi	Derivative Fair Value Of Derivative Liability Net Of Counterparty Netting DerivativeFairValueOfDerivativeLiabilityNetOfCounterpartyNetting	6000000000
CY2011Q4	mbi	Estimated Insurance Recoveries After Income Taxes EstimatedInsuranceRecoveriesAfterIncomeTaxes	2000000000
CY2011Q4	mbi	Fair Value Of Credit Support Annexes FairValueOfCreditSupportAnnexes	2000000
CY2011Q4	mbi	Fair Value Of Restricted Shares Awarded FairValueOfRestrictedSharesAwarded	2000000
CY2011Q4	mbi	Fair Value Of Restricted Shares Cancelled FairValueOfRestrictedSharesCancelled	1000000
CY2011Q4	mbi	Fair Value Of Securities On Deposit With Various Regulatory Authorities FairValueOfSecuritiesOnDepositWithVariousRegulatoryAuthorities	11000000
CY2011Q4	mbi	Fair Value Of Warrants FairValueOfWarrants	38000000
CY2011Q4	mbi	Fair Value Option Aggregate Fair Value Loans Receivable FairValueOptionAggregateFairValueLoansReceivable	2046000000
CY2011Q4	mbi	Fair Value Option Aggregate Fair Value Long Term Debt Instruments FairValueOptionAggregateFairValueLongTermDebtInstruments	4754000000
CY2011Q4	mbi	Fair Value Option Contractual Outstanding Principal Loans Receivable FairValueOptionContractualOutstandingPrincipalLoansReceivable	3481000000
CY2011Q4	mbi	Fair Value Option Contractual Outstanding Principal Long Term Debt Instruments FairValueOptionContractualOutstandingPrincipalLongTermDebtInstruments	13583000000
CY2011Q4	mbi	Impact Of Non Performance Risk On Insured Derivative Liability ImpactOfNonPerformanceRiskOnInsuredDerivativeLiability	5700000000
CY2011Q4	mbi	Long Term Debt Before Surplus Notes Noncurrent LongTermDebtBeforeSurplusNotesNoncurrent	900000000
CY2011Q4	mbi	Number Of Policies NumberOfPolicies	296	Policies
CY2011Q4	mbi	Securities Pledged As Collateral To Derivative Counterparties SecuritiesPledgedAsCollateralToDerivativeCounterparties	470000000
CY2011Q4	mbi	Transactions Guaranteed On Behalf Of Various Affiliates TransactionsGuaranteedOnBehalfOfVariousAffiliates	4400000000
CY2011Q4	mbi	Weighted Average Contractual Maturity Period Of Securities Unrealized Loss Position WeightedAverageContractualMaturityPeriodOfSecuritiesUnrealizedLossPosition	21	Y
CY2011Q4	mbi	Other Assets And Derivative Assets Vie After Counterparty Netting And Embedded Reclass OtherAssetsAndDerivativeAssetsVieAfterCounterpartyNettingAndEmbeddedReclass	452000000
CY2011Q4	mbi	Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions SecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions	290	pure
CY2011Q4	mbi	Percentage Of Recognized Estimated Recoveries In Relationship To Consolidated Shareholders Equity PercentageOfRecognizedEstimatedRecoveriesInRelationshipToConsolidatedShareholdersEquity	1.19	pure
CY2011Q4	mbi	Accumulated Other Comprehensive Income Loss Available For Sale Securities Gross Unrealized Gains AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesGrossUnrealizedGains	263000000
CY2011Q4	mbi	Accumulated Other Comprehensive Income Loss Available For Sale Securities Gross Unrealized Losses AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesGrossUnrealizedLosses	478000000
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CY2011Q4	mbi	Accumulated Other Comprehensive Income Loss Available For Sale Securities Unrealized Gain Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesUnrealizedGainLossNetOfTax	-134000000
CY2011Q4	mbi	Derivative Asset Counterparty Netting Amount Fair Value DerivativeAssetCounterpartyNettingAmountFairValue	93000000
CY2011Q4	mbi	Derivative Liability Counterparty Netting Amount Fair Value DerivativeLiabilityCounterpartyNettingAmountFairValue	93000000
CY2012Q4	invest	Derivative Notional Amount DerivativeNotionalAmount	58640000000
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	9000000
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CY2012Q4	us-gaap	Fair Value Option Aggregate Differences Long Term Debt Instruments FairValueOptionAggregateDifferencesLongTermDebtInstruments	5362000000
CY2012Q4	us-gaap	Availableforsale Securities Continuous Unrealized Loss Position Aggregate Losses2 AvailableforsaleSecuritiesContinuousUnrealizedLossPositionAggregateLosses2	139000000
CY2012Q4	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	285000000
CY2012Q4	us-gaap	Schedule Of Insured Financial Obligations With Credit Deterioration Number Of Contracts Issued And Outstanding ScheduleOfInsuredFinancialObligationsWithCreditDeteriorationNumberOfContractsIssuedAndOutstanding	190	Issues
CY2012Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	81733530	shares
CY2012Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	400000000	shares
CY2012Q4	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	248000000
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CY2012Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	47000000
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CY2012Q4	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	226000000
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CY2012Q4	us-gaap	Participating Policies As Percentage Of Gross Insurance In Force ParticipatingPoliciesAsPercentageOfGrossInsuranceInForce	1.000	pure
CY2012Q4	us-gaap	Investments Fair Value Disclosure InvestmentsFairValueDisclosure	12174000000
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	56000000
CY2012Q4	us-gaap	Treasury Stock Number Of Shares Held TreasuryStockNumberOfSharesHeld	56700000	shares
CY2012Q4	us-gaap	Notional Amount Of Other Derivatives Not Designated As Hedging Instruments NotionalAmountOfOtherDerivativesNotDesignatedAsHedgingInstruments	58640000000
CY2012Q4	us-gaap	Financial Guarantee Insurance Contracts Premium Expected To Be Collected More Than Five And Within10 Years From Balance Sheet Date FinancialGuaranteeInsuranceContractsPremiumExpectedToBeCollectedMoreThanFiveAndWithin10YearsFromBalanceSheetDate	378000000
CY2012Q4	us-gaap	Schedule Of Insured Financial Obligations With Credit Deterioration Reductions Of Gross Claim Liability Net Discount ScheduleOfInsuredFinancialObligationsWithCreditDeteriorationReductionsOfGrossClaimLiabilityNetDiscount	229000000
CY2012Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	2039000000
CY2012Q4	us-gaap	Assets Assets	21724000000
CY2012Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	990000000
CY2012Q4	us-gaap	Schedule Of Insured Financial Obligations With Credit Deterioration Insured Contractual Payments Outstanding Principal ScheduleOfInsuredFinancialObligationsWithCreditDeteriorationInsuredContractualPaymentsOutstandingPrincipal	15257000000
CY2012Q4	us-gaap	Deferred Tax Assets Capital Loss Carryforwards DeferredTaxAssetsCapitalLossCarryforwards	162000000
CY2012Q4	us-gaap	Schedule Of Insured Financial Obligations With Credit Deterioration Insured Contractual Payments Outstanding ScheduleOfInsuredFinancialObligationsWithCreditDeteriorationInsuredContractualPaymentsOutstanding	23618000000
CY2012Q4	us-gaap	Financial Guarantee Insurance Contracts Premium Expected To Be Collected More Than Four And Within Five Years From Balance Sheet Date FinancialGuaranteeInsuranceContractsPremiumExpectedToBeCollectedMoreThanFourAndWithinFiveYearsFromBalanceSheetDate	99000000
CY2012Q4	us-gaap	Financial Guarantee Insurance Contracts Premium Expected To Be Collected More Than Three And Within Four Years From Balance Sheet Date FinancialGuaranteeInsuranceContractsPremiumExpectedToBeCollectedMoreThanThreeAndWithinFourYearsFromBalanceSheetDate	109000000
CY2012Q4	us-gaap	Schedule Of Insured Financial Obligations With Credit Deterioration Statement Of Financial Position Unearned Premium Revenue ScheduleOfInsuredFinancialObligationsWithCreditDeteriorationStatementOfFinancialPositionUnearnedPremiumRevenue	278000000
CY2012Q4	us-gaap	Schedule Of Insured Financial Obligations With Credit Deterioration Insured Contractual Payments Outstanding Interest ScheduleOfInsuredFinancialObligationsWithCreditDeteriorationInsuredContractualPaymentsOutstandingInterest	8361000000
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	19.0485
CY2012Q4	us-gaap	Minority Interest MinorityInterest	21000000
CY2012Q4	us-gaap	Schedule Of Insured Financial Obligations With Credit Deterioration Reductions Of Gross Claim Liability Gross Potential Recoveries ScheduleOfInsuredFinancialObligationsWithCreditDeteriorationReductionsOfGrossClaimLiabilityGrossPotentialRecoveries	4109000000
CY2012Q4	us-gaap	Debt Instrument Fair Value DebtInstrumentFairValue	3700000000
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	5963268	shares
CY2012Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	1200000000
CY2012Q4	us-gaap	Financial Guarantee Insurance Contracts Future Expected Premium Revenue To Be Recognized During First Quarter Following Balance Sheet Date FinancialGuaranteeInsuranceContractsFutureExpectedPremiumRevenueToBeRecognizedDuringFirstQuarterFollowingBalanceSheetDate	85000000
CY2012Q4	us-gaap	Schedule Of Insured Financial Obligations With Credit Deterioration Net Claim Liability ScheduleOfInsuredFinancialObligationsWithCreditDeteriorationNetClaimLiability	-2749000000
CY2012Q4	us-gaap	Financial Guarantee Insurance Contracts Future Expected Premium Revenue To Be Recognized During Second Quarter Following Balance Sheet Date FinancialGuaranteeInsuranceContractsFutureExpectedPremiumRevenueToBeRecognizedDuringSecondQuarterFollowingBalanceSheetDate	84000000
CY2012Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	1
CY2012Q4	us-gaap	Financial Guarantee Insurance Contracts Premium Expected To Be Collected During Fourth Quarter Following Balance Sheet Date FinancialGuaranteeInsuranceContractsPremiumExpectedToBeCollectedDuringFourthQuarterFollowingBalanceSheetDate	36000000
CY2012Q4	us-gaap	Debt Instrument Repurchase Amount DebtInstrumentRepurchaseAmount	172000000
CY2012Q4	us-gaap	Financial Guarantee Insurance Contracts Future Expected Premium Revenue To Be Recognized During Fourth Quarter Following Balance Sheet Date FinancialGuaranteeInsuranceContractsFutureExpectedPremiumRevenueToBeRecognizedDuringFourthQuarterFollowingBalanceSheetDate	79000000
CY2012Q4	us-gaap	Reinsurance Recoverables ReinsuranceRecoverables	14000000
CY2012Q4	us-gaap	Financial Guarantee Insurance Contracts Future Expected Premium Revenue To Be Recognized During Third Quarter Following Balance Sheet Date FinancialGuaranteeInsuranceContractsFutureExpectedPremiumRevenueToBeRecognizedDuringThirdQuarterFollowingBalanceSheetDate	81000000
CY2012Q4	us-gaap	Schedule Of Insured Financial Obligations With Credit Deterioration Gross Claim Liability ScheduleOfInsuredFinancialObligationsWithCreditDeteriorationGrossClaimLiability	1589000000
CY2012Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	21724000000
CY2012Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	277405039	shares
CY2012Q4	us-gaap	Financial Guarantee Insurance Contracts Future Expected Premium Revenue To Be Recognized FinancialGuaranteeInsuranceContractsFutureExpectedPremiumRevenueToBeRecognized	3246000000
CY2012Q4	us-gaap	Common Stock Value CommonStockValue	277000000
CY2012Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	1751173	shares
CY2012Q4	us-gaap	Derivative Assets Liabilities At Fair Value Net DerivativeAssetsLiabilitiesAtFairValueNet	2900000000
CY2012Q4	us-gaap	Financial Guarantee Insurance Contracts Premium Expected To Be Collected During Second Quarter Following The Balance Sheet Date FinancialGuaranteeInsuranceContractsPremiumExpectedToBeCollectedDuringSecondQuarterFollowingTheBalanceSheetDate	43000000
CY2012Q4	us-gaap	Liabilities Liabilities	18530000000
CY2012Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	723000000
CY2012Q4	us-gaap	Summary Of Investments Other Than Investments In Related Parties Fair Value SummaryOfInvestmentsOtherThanInvestmentsInRelatedPartiesFairValue	5862000000
CY2012Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue	880000000
CY2012Q4	us-gaap	Participating Policies Amount In Force ParticipatingPoliciesAmountInForce	679100000000
CY2012Q4	us-gaap	Security Owned And Pledged As Collateral Fair Value SecurityOwnedAndPledgedAsCollateralFairValue	820000000
CY2012Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	1
CY2012Q4	us-gaap	Treasury Stock Value TreasuryStockValue	2275000000
CY2012Q4	us-gaap	Financial Guarantee Insurance Contracts Premium Expected To Be Collected More Than Two And Within Three Years From Balance Sheet Date FinancialGuaranteeInsuranceContractsPremiumExpectedToBeCollectedMoreThanTwoAndWithinThreeYearsFromBalanceSheetDate	117000000
CY2012Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2012Q4	us-gaap	Preferred Stock Value PreferredStockValue
CY2012Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies
CY2012Q4	us-gaap	Fair Value Option Aggregate Differences Loans And Long Term Receivables FairValueOptionAggregateDifferencesLoansAndLongTermReceivables	889000000
CY2012Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	3076000000
CY2012Q4	us-gaap	Summary Of Investments Other Than Investments In Related Parties Cost SummaryOfInvestmentsOtherThanInvestmentsInRelatedPartiesCost	5758000000
CY2012Q4	us-gaap	Summary Of Investments Other Than Investments In Related Parties Carrying Amount SummaryOfInvestmentsOtherThanInvestmentsInRelatedPartiesCarryingAmount	5862000000
CY2012Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Other DeferredTaxAssetsTaxCreditCarryforwardsOther	19000000
CY2012Q4	us-gaap	Financial Guarantee Insurance Contracts Premium Expected To Be Collected More Than10 And Within15 Years From Balance Sheet Date FinancialGuaranteeInsuranceContractsPremiumExpectedToBeCollectedMoreThan10AndWithin15YearsFromBalanceSheetDate	264000000
CY2012Q4	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	296000000
CY2012Q4	us-gaap	Stockholders Equity StockholdersEquity	3173000000
CY2012Q4	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	270000000
CY2012Q4	us-gaap	Financial Guarantee Insurance Contracts Premium Receivable Premium Expected To Be Collected FinancialGuaranteeInsuranceContractsPremiumReceivablePremiumExpectedToBeCollected	1534000000
CY2012Q4	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	197000000
CY2012Q4	us-gaap	Operating Loss Carryforwards OperatingLossCarryforwards	1400000000
CY2012Q4	mbi	Fair Value Liabilities Measured On Recurring Basis FairValueLiabilitiesMeasuredOnRecurringBasis	6926000000
CY2012Q4	mbi	Accumulated Other Comprehensive Income Loss Available For Sale Securities Foreign Exchange AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesForeignExchange	24000000
CY2012Q4	mbi	Accumulated Other Comprehensive Income Loss Available For Sale Securities Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	31000000
CY2012Q4	mbi	Accumulated Other Comprehensive Loss Deferred Income Tax AccumulatedOtherComprehensiveLossDeferredIncomeTax	21000000
CY2012Q4	mbi	Aggregate Amount Of Insured Par Outstanding Ceded To Reinsurers AggregateAmountOfInsuredParOutstandingCededToReinsurers	3420000000
CY2012Q4	mbi	Aggregate Of Estimated Potential Recoveries AggregateOfEstimatedPotentialRecoveries	3600000000
CY2012Q4	mbi	Aggregate Principal Amount In Excess Of Failure To Make Payment At Maturity AggregatePrincipalAmountInExcessOfFailureToMakePaymentAtMaturity	10000000
CY2012Q4	mbi	Cash Collateral For Investment Agreements CashCollateralForInvestmentAgreements	144000000
CY2012Q4	mbi	Charged Off Loan Recovery Value ChargedOffLoanRecoveryValue	0
CY2012Q4	mbi	Derivative Fair Value Of Derivative Asset Net Of Counterparty Netting DerivativeFairValueOfDerivativeAssetNetOfCounterpartyNetting	12000000
CY2012Q4	mbi	Derivative Fair Value Of Derivative Liability Net Of Counterparty Netting DerivativeFairValueOfDerivativeLiabilityNetOfCounterpartyNetting	3100000000
CY2012Q4	mbi	Derivatives Ceded Under Reinsurance Agreements DerivativesCededUnderReinsuranceAgreements	392000000
CY2012Q4	mbi	Estimated Insurance Recoveries After Income Taxes EstimatedInsuranceRecoveriesAfterIncomeTaxes	2300000000
CY2012Q4	mbi	Estimated Tax Liability On Disposition Of Foreign Subsidiary EstimatedTaxLiabilityOnDispositionOfForeignSubsidiary	17000000
CY2012Q4	mbi	Fair Value Of Credit Support Annexes FairValueOfCreditSupportAnnexes	4000000
CY2012Q4	mbi	Fair Value Of Restricted Shares Awarded FairValueOfRestrictedSharesAwarded	21000000
CY2012Q4	mbi	Fair Value Of Restricted Shares Cancelled FairValueOfRestrictedSharesCancelled	2000000
CY2012Q4	mbi	Fair Value Of Securities On Deposit With Various Regulatory Authorities FairValueOfSecuritiesOnDepositWithVariousRegulatoryAuthorities	10000000
CY2012Q4	mbi	Fair Value Of Warrants FairValueOfWarrants	6000000
CY2012Q4	mbi	Fair Value Option Aggregate Fair Value Loans Receivable FairValueOptionAggregateFairValueLoansReceivable	1881000000
CY2012Q4	mbi	Fair Value Option Aggregate Fair Value Long Term Debt Instruments FairValueOptionAggregateFairValueLongTermDebtInstruments	3659000000
CY2012Q4	mbi	Fair Value Option Contractual Outstanding Principal Loans Receivable FairValueOptionContractualOutstandingPrincipalLoansReceivable	2770000000
CY2012Q4	mbi	Fair Value Option Contractual Outstanding Principal Long Term Debt Instruments FairValueOptionContractualOutstandingPrincipalLongTermDebtInstruments	9021000000
CY2012Q4	mbi	Financial Guarantee Insurance Contracts Future Expected Premium Revenue To Be Recognized During Eleventh Through Fifteenth Year Following Balance Sheet Date FinancialGuaranteeInsuranceContractsFutureExpectedPremiumRevenueToBeRecognizedDuringEleventhThroughFifteenthYearFollowingBalanceSheetDate	523000000
CY2012Q4	mbi	Financial Guarantee Insurance Contracts Future Expected Premium Revenue To Be Recognized During Sixth Through Tenth Year Following Balance Sheet Date FinancialGuaranteeInsuranceContractsFutureExpectedPremiumRevenueToBeRecognizedDuringSixthThroughTenthYearFollowingBalanceSheetDate	861000000
CY2012Q4	mbi	Financial Guarantee Insurance Contracts Premium Expected To Be Collected During Twenty First Year And Thereafter From Balance Sheet Date FinancialGuaranteeInsuranceContractsPremiumExpectedToBeCollectedDuringTwentyFirstYearAndThereafterFromBalanceSheetDate	303000000
CY2012Q4	mbi	Guarantee Obligations Maximum Net Exposure GuaranteeObligationsMaximumNetExposure	50900000000
CY2012Q4	mbi	Impact Of Non Performance Risk On Insured Derivative Liability ImpactOfNonPerformanceRiskOnInsuredDerivativeLiability	4400000000
CY2012Q4	mbi	Issued Commercial Paper To Fund Purchase Of Assets From Clients Maturity In Days IssuedCommercialPaperToFundPurchaseOfAssetsFromClientsMaturityInDays	270	D
CY2012Q4	mbi	Long Term Debt Before Surplus Notes Noncurrent LongTermDebtBeforeSurplusNotesNoncurrent	722000000
CY2012Q4	mbi	Number Of Policies NumberOfPolicies	295	Policies
CY2012Q4	mbi	Number Of Transactions Received Consideration And Excluded From Loan Files Reviewed With Potential Recoveries NumberOfTransactionsReceivedConsiderationAndExcludedFromLoanFilesReviewedWithPotentialRecoveries	2	pure
CY2012Q4	mbi	Outstanding Exposure On Surety Bonds OutstandingExposureOnSuretyBonds	340000000
CY2012Q4	mbi	Proprietary Performance Data On Cre Loans Amount ProprietaryPerformanceDataOnCreLoansAmount	80000
CY2012Q4	mbi	Reinsurance Recoverables On Paid Losses ReinsuranceRecoverablesOnPaidLosses	1000000
CY2012Q4	mbi	Reinsurance Recoverables On Un Paid Losses ReinsuranceRecoverablesOnUnPaidLosses	13000000
CY2012Q4	mbi	Transactions Guaranteed On Behalf Of Various Affiliates TransactionsGuaranteedOnBehalfOfVariousAffiliates	3400000000
CY2012Q4	mbi	Unearned Compensation Net Of Estimated Forfeitures UnearnedCompensationNetOfEstimatedForfeitures	20000000
CY2012Q4	mbi	Unearned Compensation Net Of Estimated Forfeitures Expected To Be Recognized In Years UnearnedCompensationNetOfEstimatedForfeituresExpectedToBeRecognizedInYears	2.5	Y
CY2012Q4	mbi	Weighted Average Contractual Maturity Period Of Securities Unrealized Loss Position WeightedAverageContractualMaturityPeriodOfSecuritiesUnrealizedLossPosition	23	Y
CY2012Q4	mbi	Number Of Variable Interest Entities Consolidated NumberOfVariableInterestEntitiesConsolidated	0	Entity
CY2012Q4	mbi	Reinsurance Recoverables Secured By Letters Of Credit Amount ReinsuranceRecoverablesSecuredByLettersOfCreditAmount	8000000
CY2012Q4	mbi	Other Assets And Derivative Assets Vie After Counterparty Netting And Embedded Reclass OtherAssetsAndDerivativeAssetsVieAfterCounterpartyNettingAndEmbeddedReclass	4000000
CY2012Q4	mbi	Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions SecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions	153	pure
CY2012Q4	mbi	Aggregate Claim Amount AggregateClaimAmount	7000000000
CY2012Q4	mbi	Percentage Of Recognized Estimated Recoveries In Relationship To Consolidated Shareholders Equity PercentageOfRecognizedEstimatedRecoveriesInRelationshipToConsolidatedShareholdersEquity	0.73	pure
CY2012Q4	mbi	Accumulated Other Comprehensive Income Loss Available For Sale Securities Gross Unrealized Gains AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesGrossUnrealizedGains	251000000
CY2012Q4	mbi	Accumulated Other Comprehensive Income Loss Available For Sale Securities Gross Unrealized Losses AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesGrossUnrealizedLosses	152000000
CY2012Q4	mbi	Accumulated Other Comprehensive Income Loss Available For Sale Securities Unrealized Gain Loss Before Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesUnrealizedGainLossBeforeTax	123000000
CY2012Q4	mbi	Accumulated Other Comprehensive Income Loss Available For Sale Securities Unrealized Gain Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesUnrealizedGainLossNetOfTax	92000000
CY2012Q4	mbi	Percentage Of Securities Fair Value Below Book Value PercentageOfSecuritiesFairValueBelowBookValue	0.05	pure
CY2012Q4	mbi	Financial Guarantee Insurance Contracts Future Expected Premium Revenue To Be Recognized During Sixteenth Year And Thereafter Following Balance Sheet Date FinancialGuaranteeInsuranceContractsFutureExpectedPremiumRevenueToBeRecognizedDuringSixteenthYearAndThereafterFollowingBalanceSheetDate	493000000
CY2012Q4	mbi	Derivative Asset Counterparty Netting Amount Fair Value DerivativeAssetCounterpartyNettingAmountFairValue	90000000
CY2012Q4	mbi	Derivative Liability Counterparty Netting Amount Fair Value DerivativeLiabilityCounterpartyNettingAmountFairValue	90000000
CY2012Q4	mbi	Assured Guaranty Favorable Ruling On Breach Of Mortgage Representations AssuredGuarantyFavorableRulingOnBreachOfMortgageRepresentations	90000000
CY2012Q4	mbi	Amount Released From Escrow In Subsequent Fiscal Period AmountReleasedFromEscrowInSubsequentFiscalPeriod	115000000
	mbi	Number Of Structured Commercial Mortgage Backed Securities Commutations NumberOfStructuredCommercialMortgageBackedSecuritiesCommutations	66
	mbi	Gross Exposure Commuted On Commercial Mortgage Backed Securities Insured Derivatives GrossExposureCommutedOnCommercialMortgageBackedSecuritiesInsuredDerivatives	33100000000
	mbi	Aggregate Itd Credit Impairment On Commercial Mortgage Backed Securities Derivatives AggregateItdCreditImpairmentOnCommercialMortgageBackedSecuritiesDerivatives	3600000000
CY2012Q4	mbi	Percentage Of Current Roll To Loss For Transaction PercentageOfCurrentRollToLossForTransaction	0.03	pure
CY2012Q4	mbi	Percentage Of Loans Charged Off PercentageOfLoansChargedOff	0.30	pure
CY2012Q4	mbi	Percentage Of Loans In Thirty To Fifty Nine Day Delinquent Bucket PercentageOfLoansInThirtyToFiftyNineDayDelinquentBucket	0.10	pure
CY2007Q1	us-gaap	Stock Repurchase Program Authorized Amount StockRepurchaseProgramAuthorizedAmount	1000000000
CY2011Q3	mbi	Number Of Directors NumberOfDirectors	2	Directors
CY2010	us-gaap	Other Comprehensive Income Foreign Currency Translation Gain Loss Arising During Period Tax OtherComprehensiveIncomeForeignCurrencyTranslationGainLossArisingDuringPeriodTax	2000000
CY2010	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	414000000
CY2010	us-gaap	Increase Decrease In Premiums Receivable IncreaseDecreaseInPremiumsReceivable	-259000000
CY2010	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	393000000
CY2010	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	-7000000
CY2010	us-gaap	Increase Decrease In Loss And Loss Adjustment Expense Reserve IncreaseDecreaseInLossAndLossAdjustmentExpenseReserve	81000000
CY2010	us-gaap	Profit Loss ProfitLoss	53000000
CY2010	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	4778000000
CY2010	us-gaap	Repayments Of Medium Term Notes RepaymentsOfMediumTermNotes	507000000
CY2010	us-gaap	Minority Interest Change In Redemption Value MinorityInterestChangeInRedemptionValue	-3000000
CY2010	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	202421433	shares
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	1493873	shares
CY2010	us-gaap	Payments For Proceeds From Short Term Investments PaymentsForProceedsFromShortTermInvestments	-662000000
CY2010	us-gaap	Income Tax Effects Allocated Directly To Equity Cumulative Effect Of Change In Accounting Principle IncomeTaxEffectsAllocatedDirectlyToEquityCumulativeEffectOfChangeInAccountingPrinciple	-21000000
CY2010	us-gaap	Proceeds From Payments For In Securities Sold Under Agreements To Repurchase ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase	-31000000
CY2010	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	157000000
CY2010	us-gaap	Increase Decrease In Unearned Premiums IncreaseDecreaseInUnearnedPremiums	-635000000
CY2010	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	1.558	pure
CY2010	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	31000000
CY2010	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-95000000
CY2010	us-gaap	Payments To Acquire Interest In Subsidiaries And Affiliates PaymentsToAcquireInterestInSubsidiariesAndAffiliates	27000000
CY2010	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	3000000
CY2010	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.26
CY2010	us-gaap	Ceded Premiums Written Financial Guarantee Insurance Contracts CededPremiumsWrittenFinancialGuaranteeInsuranceContracts	-229000000
CY2010	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	29000000
CY2010	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment For Write Down Of Securities Included In Net Income Tax OtherComprehensiveIncomeLossReclassificationAdjustmentForWriteDownOfSecuritiesIncludedInNetIncomeTax	30000000
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	1.194	pure
CY2010	us-gaap	Income Tax Expense Benefit Intraperiod Tax Allocation IncomeTaxExpenseBenefitIntraperiodTaxAllocation	-63000000
CY2010	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions No Previous Impairment OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsNoPreviousImpairment	24000000
CY2010	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	2000000
CY2010	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment On Derivatives Included In Net Income Tax OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeTax	9000000
CY2010	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	5.0500
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.014	pure
CY2010	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	-999000000
CY2010	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment On Derivatives Included In Net Income Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeNetOfTax	17000000
CY2010	us-gaap	Increase Decrease In Deferred Policy Acquisition Costs IncreaseDecreaseInDeferredPolicyAcquisitionCosts	-61000000
CY2010	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	327000000
CY2010	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	756000000
CY2010	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	3000000
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.018	pure
CY2010	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	-17000000
CY2010	us-gaap	Fees And Commissions Other FeesAndCommissionsOther	7000000
CY2010	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	11896000000
CY2010	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Securities Sold OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsSecuritiesSold	16000000
CY2010	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-265000000
CY2010	us-gaap	Proceeds From Sale And Collection Of Loans Receivable ProceedsFromSaleAndCollectionOfLoansReceivable	860000000
CY2010	us-gaap	Assumed Premiums Written Financial Guarantee Insurance Contracts AssumedPremiumsWrittenFinancialGuaranteeInsuranceContracts	7000000
CY2010	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	2000000
CY2010	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.26
CY2010	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	-143000000
CY2010	us-gaap	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Tax Portion Attributable To Parent OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossTaxPortionAttributableToParent	4000000
CY2010	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-221000000
CY2010	us-gaap	Net Income Loss NetIncomeLoss	53000000
CY2010	us-gaap	Direct Premiums Written Financial Guarantee Insurance Contracts DirectPremiumsWrittenFinancialGuaranteeInsuranceContracts	-19000000
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	1100000	shares
CY2010	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	14000000
CY2010	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	31000000
CY2010	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	2000000
CY2010	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment For Writedown Of Securities Included In Net Income Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentForWritedownOfSecuritiesIncludedInNetIncomeNetOfTax	55000000
CY2010	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	203021134	shares
CY2010	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-3505000000
CY2010	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment For Sale Of Securities Included In Net Income Tax OtherComprehensiveIncomeLossReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeTax	82000000
CY2010	us-gaap	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAvailableforsaleSecurities	26000000
CY2010	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	599701	shares
CY2010	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35	pure
CY2010	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	92000000
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	0.402	pure
CY2010	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	239000000
CY2010	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	91000000
CY2010	us-gaap	Revenues Revenues	894000000
CY2010	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	21000000
CY2010	us-gaap	Interest Paid Net InterestPaidNet	574000000
CY2010	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-148000000
CY2010	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	7000000
CY2010	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	134000000
CY2010	us-gaap	Payments Of Dividends PaymentsOfDividends	1000000
CY2010	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-607000000
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	805776	shares
CY2010	us-gaap	Undistributed Earnings UndistributedEarnings	3000000
CY2010	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	5000000
CY2010	us-gaap	Insurance Recoveries InsuranceRecoveries	21000000
CY2010	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Cash Flows OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsCashFlows	-1000000
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Prior Year Income Taxes EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes	0.000	pure
CY2010	us-gaap	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Tax Portion Attributable To Parent Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossTaxPortionAttributableToParentAvailableforsaleSecurities	14000000
CY2010	us-gaap	Income Tax Effects Allocated Directly To Equity IncomeTaxEffectsAllocatedDirectlyToEquity	85000000
CY2010	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	5000000
CY2010	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	9967000000
CY2010	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	-1000000
CY2010	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	4526442	shares
CY2010	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	18000000
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	3.79
CY2010	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions Additional Credit Losses OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsAdditionalCreditLosses	18000000
CY2010	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	501000000
CY2010	us-gaap	Proceeds From Insurance Premiums Collected ProceedsFromInsurancePremiumsCollected	533000000
CY2010	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	186000000
CY2010	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	60000000
CY2010	us-gaap	Premiums Written Net Financial Guarantee Insurance Contracts PremiumsWrittenNetFinancialGuaranteeInsuranceContracts	217000000
CY2010	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	10000000
CY2010	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	3000000
CY2010	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-239000000
CY2010	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-946000000
CY2010	us-gaap	Payments For Proceeds From Hedge Investing Activities PaymentsForProceedsFromHedgeInvestingActivities	216000000
CY2010	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-3000000
CY2010	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Change In Status OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsChangeInStatus	-4000000
CY2010	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment For Sale Of Securities Included In Net Income Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTax	152000000
CY2010	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	30000000
CY2010	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.115	pure
CY2010	us-gaap	Repayments Of Notes Payable RepaymentsOfNotesPayable	1793000000
CY2010	us-gaap	Benefits Losses And Expenses BenefitsLossesAndExpenses	989000000
CY2010	mbi	Effective Income Tax Rate Reconciliation Uncertain Tax Positions EffectiveIncomeTaxRateReconciliationUncertainTaxPositions	-0.223	pure
CY2010	mbi	Additions For Credit Loss Impairments Recognized In Prior Periods For Securities That Were Re Impaired With Non Credit Component In Current Period AdditionsForCreditLossImpairmentsRecognizedInPriorPeriodsForSecuritiesThatWereReImpairedWithNonCreditComponentInCurrentPeriod	1000000
CY2010	mbi	Collateral To From Swap Counterparty From Investing Activities CollateralToFromSwapCounterpartyFromInvestingActivities	166000000
CY2010	mbi	Consolidated Variable Interest Entities Tax ConsolidatedVariableInterestEntitiesTax	23000000
CY2010	mbi	Consolidated Variable Interest Entity Net Of Tax ConsolidatedVariableInterestEntityNetOfTax	-55000000
CY2010	mbi	Credit Losses Recognized In Retained Earnings Related To Adoption Of Accounting Principles CreditLossesRecognizedInRetainedEarningsRelatedToAdoptionOfAccountingPrinciples	-149000000
CY2010	mbi	Deconsolidated Variable Interest Entities Tax DeconsolidatedVariableInterestEntitiesTax	2000000
CY2010	mbi	Deconsolidated Variable Interest Entity Net Of Tax DeconsolidatedVariableInterestEntityNetOfTax	82000000
CY2010	mbi	Effective Income Tax Rate Reconciliation Deferred Tax Inventory Adjustment EffectiveIncomeTaxRateReconciliationDeferredTaxInventoryAdjustment	-0.136	pure
CY2010	mbi	Effective Income Tax Rate Reconciliation Mark To Market On Warrants EffectiveIncomeTaxRateReconciliationMarkToMarketOnWarrants	-0.112	pure
CY2010	mbi	Increase Decrease In Insurance Loss Recoverable IncreaseDecreaseInInsuranceLossRecoverable	769000000
CY2010	mbi	Increase Decrease In Net Gains Losses On Financial Instruments At Fair Value And Foreign Exchange IncreaseDecreaseInNetGainsLossesOnFinancialInstrumentsAtFairValueAndForeignExchange	430000000
CY2010	mbi	Increase Decrease In Other Net Realized Gains Losses IncreaseDecreaseInOtherNetRealizedGainsLosses	47000000
CY2010	mbi	Net Other Than Temporary Impairments NetOtherThanTemporaryImpairments	64000000
CY2010	mbi	Payments For Net Losses And Loss Adjustment Expenses Paid PaymentsForNetLossesAndLossAdjustmentExpensesPaid	1545000000
CY2010	mbi	Payments For Net Realized Losses On Insured Derivatives Paid PaymentsForNetRealizedLossesOnInsuredDerivativesPaid	895000000
CY2010	mbi	Payments For Operating And Employee Related Expenses Paid PaymentsForOperatingAndEmployeeRelatedExpensesPaid	274000000
CY2010	mbi	Payments For Proceeds From Other Investments PaymentsForProceedsFromOtherInvestments	-53000000
CY2010	mbi	Payments From Drawdowns Of Borrowings Under Guaranteed Investment Agreements PaymentsFromDrawdownsOfBorrowingsUnderGuaranteedInvestmentAgreements	767000000
CY2010	mbi	Premiums Earned Net Financial Guarantee Insurance Contracts And Insured Derivatives PremiumsEarnedNetFinancialGuaranteeInsuranceContractsAndInsuredDerivatives	714000000
CY2010	mbi	Premiums Written Financial Guarantee Insurance Contracts Percentage Of Amount Assumed To Net PremiumsWrittenFinancialGuaranteeInsuranceContractsPercentageOfAmountAssumedToNet	0.03	pure
CY2010	mbi	Proceeds From Consolidation Of Variable Interest Entity ProceedsFromConsolidationOfVariableInterestEntity	754000000
CY2010	mbi	Proceeds From Investment Income Received ProceedsFromInvestmentIncomeReceived	997000000
CY2010	mbi	Proceeds From Issuance Of Borrowings Under Guaranteed Investment Agreements ProceedsFromIssuanceOfBorrowingsUnderGuaranteedInvestmentAgreements	45000000
CY2010	mbi	Proceeds From Reinsurance And Recoveries ProceedsFromReinsuranceAndRecoveries	398000000
CY2010	mbi	Realized Gains Losses And Other Settlements On Insured Derivatives RealizedGainsLossesAndOtherSettlementsOnInsuredDerivatives	607000000
CY2010	mbi	Unvested Restricted Stock And Units That Receive Nonforfeitable Dividends Or Dividend Equivalents UnvestedRestrictedStockAndUnitsThatReceiveNonforfeitableDividendsOrDividendEquivalents	5325428	shares
CY2010	mbi	Weighted Average Assumption For Measurement Of Current Subordination Levels WeightedAverageAssumptionForMeasurementOfCurrentSubordinationLevels	0.0450	pure
CY2010	mbi	Weighted Average Assumption For Measurement Of Expected Size Of Losses WeightedAverageAssumptionForMeasurementOfExpectedSizeOfLosses	0.5220	pure
CY2010	mbi	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Prices ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrices	24.3703
CY2010	mbi	Increasedecrease In Net Incomeloss IncreasedecreaseInNetIncomeloss	22000000
CY2010	mbi	Other Comprehensive Income Unrealized Holding Gain Loss On Securities With No Other Than Temporary Impairments Arising During Period After Reclassification Adjustments Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesWithNoOtherThanTemporaryImpairmentsArisingDuringPeriodAfterReclassificationAdjustmentsNetOfTax	286000000
CY2010	mbi	Other Comprehensive Income Unrealized Holding Gain Loss On Securities With Other Than Temporary Impairments Arising During Period After Reclassification Adjustments Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesWithOtherThanTemporaryImpairmentsArisingDuringPeriodAfterReclassificationAdjustmentsNetOfTax	-29000000
CY2010	mbi	Weighted Average Assumption Measurement Prepayment Speed WeightedAverageAssumptionMeasurementPrepaymentSpeed	0.0945	pure
CY2010	mbi	Accounting Standards Update Transition Adjustment AccountingStandardsUpdateTransitionAdjustment	27000000
CY2010	mbi	Available For Sale Securities Gross Realized Gain Loss Net Excluding Other Than Temporary Impairments AvailableForSaleSecuritiesGrossRealizedGainLossNetExcludingOtherThanTemporaryImpairments	62000000
CY2010	mbi	Change In Unrealized Gains Loss On Investments ChangeInUnrealizedGainsLossOnInvestments	-112000000
CY2011	us-gaap	Other Comprehensive Income Foreign Currency Translation Gain Loss Arising During Period Tax OtherComprehensiveIncomeForeignCurrencyTranslationGainLossArisingDuringPeriodTax	1000000
CY2011	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	74000000
CY2011	us-gaap	Increase Decrease In Premiums Receivable IncreaseDecreaseInPremiumsReceivable	-209000000
CY2011	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	65000000
CY2011	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	3000000
CY2011	us-gaap	Increase Decrease In Loss And Loss Adjustment Expense Reserve IncreaseDecreaseInLossAndLossAdjustmentExpenseReserve	293000000
CY2011	us-gaap	Profit Loss ProfitLoss	-1319000000
CY2011	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	4007000000
CY2011	us-gaap	Repayments Of Medium Term Notes RepaymentsOfMediumTermNotes	137000000
CY2011	us-gaap	Minority Interest Change In Redemption Value MinorityInterestChangeInRedemptionValue	-2000000
CY2011	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	197019968	shares
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	225874	shares
CY2011	us-gaap	Payments For Proceeds From Short Term Investments PaymentsForProceedsFromShortTermInvestments	-680000000
CY2011	us-gaap	Proceeds From Payments For In Securities Sold Under Agreements To Repurchase ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase	-184000000
CY2011	us-gaap	Increase Decrease In Unearned Premiums IncreaseDecreaseInUnearnedPremiums	-624000000
CY2011	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.411	pure
CY2011	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	50000000
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-2239000000
CY2011	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	-9000000
CY2011	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment For Write Down Of Securities Included In Net Income Tax OtherComprehensiveIncomeLossReclassificationAdjustmentForWriteDownOfSecuritiesIncludedInNetIncomeTax	12000000
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0.062	pure
CY2011	us-gaap	Income Tax Expense Benefit Intraperiod Tax Allocation IncomeTaxExpenseBenefitIntraperiodTaxAllocation	-792000000
CY2011	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions No Previous Impairment OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsNoPreviousImpairment	63000000
CY2011	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	2000000
CY2011	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment On Derivatives Included In Net Income Tax OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeTax	5000000
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.008	pure
CY2011	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	-1308000000
CY2011	us-gaap	Financial Guarantee Insurance Contracts Premium Received Over Contract Period Premium Receivable Weighted Average Risk Free Discount Rate FinancialGuaranteeInsuranceContractsPremiumReceivedOverContractPeriodPremiumReceivableWeightedAverageRiskFreeDiscountRate	0.028	pure
CY2011	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment On Derivatives Included In Net Income Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeNetOfTax	10000000
CY2011	us-gaap	Increase Decrease In Deferred Policy Acquisition Costs IncreaseDecreaseInDeferredPolicyAcquisitionCosts	-61000000
CY2011	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-497000000
CY2011	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	196000000
CY2011	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	4000000
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0.001	pure
CY2011	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	1000000
CY2011	us-gaap	Fees And Commissions Other FeesAndCommissionsOther	3000000
CY2011	us-gaap	Insured Financial Obligations With Credit Deterioration Remaining Weighted Average Contract Period InsuredFinancialObligationsWithCreditDeteriorationRemainingWeightedAverageContractPeriod	P8Y9M18D
CY2011	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	11321000000
CY2011	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Securities Sold OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsSecuritiesSold	15000000
CY2011	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-408000000
CY2011	us-gaap	Financial Guarantee Insurance Contracts Claim Liability Weighted Average Risk Free Discount Rate FinancialGuaranteeInsuranceContractsClaimLiabilityWeightedAverageRiskFreeDiscountRate	0.0153	pure
CY2011	us-gaap	Proceeds From Sale And Collection Of Loans Receivable ProceedsFromSaleAndCollectionOfLoansReceivable	291000000
CY2011	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	21000000
CY2011	us-gaap	Interest Paid Net InterestPaidNet	479000000
CY2011	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-920000000
CY2011	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	7000000
CY2011	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	209000000
CY2011	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-441000000
CY2011	us-gaap	Proceeds From Issuance Of Long Term Debt And Capital Securities Net ProceedsFromIssuanceOfLongTermDebtAndCapitalSecuritiesNet	105000000
CY2011	us-gaap	Assumed Premiums Written Financial Guarantee Insurance Contracts AssumedPremiumsWrittenFinancialGuaranteeInsuranceContracts	-2000000
CY2011	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	-2000000
CY2011	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-6.69
CY2011	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	-33000000
CY2011	us-gaap	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Tax Portion Attributable To Parent OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossTaxPortionAttributableToParent	-3000000
CY2011	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-935000000
CY2011	us-gaap	Consolidation Less Than Wholly Owned Subsidiary Parent Ownership Interest Changes Net ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesNet	11000000
CY2011	us-gaap	Net Income Loss NetIncomeLoss	-1319000000
CY2011	us-gaap	Direct Premiums Written Financial Guarantee Insurance Contracts DirectPremiumsWrittenFinancialGuaranteeInsuranceContracts	-5000000
CY2011	us-gaap	Financial Guarantee Insurance Contracts Premium Received Over Contract Period Premium Receivable Weighted Average Collection Period1 FinancialGuaranteeInsuranceContractsPremiumReceivedOverContractPeriodPremiumReceivableWeightedAverageCollectionPeriod1	P9Y1M17D
CY2011	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	4000000
CY2011	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-6.69
CY2011	us-gaap	Ceded Premiums Written Financial Guarantee Insurance Contracts CededPremiumsWrittenFinancialGuaranteeInsuranceContracts	3000000
CY2011	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	5000000
CY2011	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	50000000
CY2011	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	-1000000
CY2011	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment For Writedown Of Securities Included In Net Income Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentForWritedownOfSecuritiesIncludedInNetIncomeNetOfTax	22000000
CY2011	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	197019968	shares
CY2011	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-1877000000
CY2011	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment For Sale Of Securities Included In Net Income Tax OtherComprehensiveIncomeLossReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeTax	17000000
CY2011	us-gaap	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAvailableforsaleSecurities	5000000
CY2011	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350	pure
CY2011	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	239000000
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	0.015	pure
CY2011	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-1089000000
CY2011	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-1000000
CY2011	us-gaap	Deconsolidation Gain Or Loss Amount DeconsolidationGainOrLossAmount	271000000
CY2011	us-gaap	Revenues Revenues	-1557000000
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	235050	shares
CY2011	us-gaap	Undistributed Earnings UndistributedEarnings	15000000
CY2011	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	5000000
CY2011	us-gaap	Insurance Recoveries InsuranceRecoveries	10000000
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Prior Year Income Taxes EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes	0.000	pure
CY2011	us-gaap	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Tax Portion Attributable To Parent Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossTaxPortionAttributableToParentAvailableforsaleSecurities	3000000
CY2011	us-gaap	Income Tax Effects Allocated Directly To Equity IncomeTaxEffectsAllocatedDirectlyToEquity	128000000
CY2011	mbi	Payments For Operating And Employee Related Expenses Paid PaymentsForOperatingAndEmployeeRelatedExpensesPaid	312000000
CY2011	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	7744000000
CY2011	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	15000000
CY2011	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	3797548	shares
CY2011	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-16000000
CY2011	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions Additional Credit Losses OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsAdditionalCreditLosses	31000000
CY2011	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	86000000
CY2011	us-gaap	Proceeds From Insurance Premiums Collected ProceedsFromInsurancePremiumsCollected	397000000
CY2011	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	230000000
CY2011	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	26000000
CY2011	us-gaap	Premiums Written Net Financial Guarantee Insurance Contracts PremiumsWrittenNetFinancialGuaranteeInsuranceContracts	-10000000
CY2011	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	96000000
CY2011	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-919000000
CY2011	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-2627000000
CY2011	us-gaap	Payments For Proceeds From Hedge Investing Activities PaymentsForProceedsFromHedgeInvestingActivities	373000000
CY2011	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-5000000
CY2011	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment For Sale Of Securities Included In Net Income Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTax	32000000
CY2011	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	104000000
CY2011	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.000	pure
CY2011	us-gaap	Repayments Of Notes Payable RepaymentsOfNotesPayable	1100000000

CY2012Q2

dei

Entity Public Float

EntityPublicFloat

1530515614

CY2010Q1

us-gaap

Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price

ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice

5.05

CY2013Q1

dei

Entity Common Stock Shares Outstanding

EntityCommonStockSharesOutstanding

192753457

shares

CY2012Q1

mbi

Number Of Causes Of Actions Purported

NumberOfCausesOfActionsPurported

7

Event

CY2009Q4

us-gaap

Stockholders Equity Including Portion Attributable To Noncontrolling Interest

StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest

2607000000

CY2009Q4

us-gaap

Unrecognized Tax Benefits

UnrecognizedTaxBenefits

10000000

CY2009Q4

us-gaap

Cash And Cash Equivalents At Carrying Value

CashAndCashEquivalentsAtCarryingValue

803000000

CY2009Q4

us-gaap

Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price

ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

25.3110

CY2009Q4

us-gaap

Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number

ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber

7044820

shares

CY2009Q4

us-gaap

Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held

OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld

389000000

CY2010Q4

us-gaap

Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price

ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice

53.1172

CY2010Q4

us-gaap

Stockholders Equity Including Portion Attributable To Noncontrolling Interest

StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest

2846000000

CY2010Q4

us-gaap

Unrecognized Tax Benefits

UnrecognizedTaxBenefits

26000000

CY2010Q4

us-gaap

Assets

32279000000

CY2010Q4

us-gaap

Cash And Cash Equivalents At Carrying Value

CashAndCashEquivalentsAtCarryingValue

1130000000

CY2010Q4

us-gaap

Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price

ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

22.1713

CY2010Q4

us-gaap

Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number

ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber

6650947

shares

CY2010Q4

us-gaap

Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number

ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber

2050252

shares

CY2010Q4

us-gaap

Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held

OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld

262000000

CY2010Q4

mbi

Amount Of Repurchase Request Resolved Related To Ineligible Loans

AmountOfRepurchaseRequestResolvedRelatedToIneligibleLoans

8000000000

CY2011Q4

invest

Derivative Notional Amount

DerivativeNotionalAmount

87857000000

CY2011Q4

us-gaap

Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price

ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice

46.1478

CY2011Q4

us-gaap

Fair Value Option Aggregate Differences Long Term Debt Instruments

FairValueOptionAggregateDifferencesLongTermDebtInstruments

8829000000

CY2011Q4

us-gaap

Schedule Of Insured Financial Obligations With Credit Deterioration Number Of Contracts Issued And Outstanding

ScheduleOfInsuredFinancialObligationsWithCreditDeteriorationNumberOfContractsIssuedAndOutstanding

191

Issues

CY2011Q4

us-gaap

Treasury Stock Shares

TreasuryStockShares

81752966

shares

CY2011Q4

us-gaap

Common Stock Shares Authorized

CommonStockSharesAuthorized

400000000

shares

CY2011Q4

us-gaap

Stockholders Equity Including Portion Attributable To Noncontrolling Interest

StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest

1723000000

CY2011Q4

us-gaap

Unrecognized Tax Benefits

UnrecognizedTaxBenefits

47000000

CY2011Q4

us-gaap

Debt Instrument Unamortized Discount

DebtInstrumentUnamortizedDiscount

1000000

CY2011Q4

us-gaap

Preferred Stock Shares Authorized

PreferredStockSharesAuthorized

10000000

shares

CY2011Q4

us-gaap

Participating Policies As Percentage Of Gross Insurance In Force

ParticipatingPoliciesAsPercentageOfGrossInsuranceInForce

1.000

pure

CY2011Q4

us-gaap

Investments Fair Value Disclosure

InvestmentsFairValueDisclosure

16206000000

CY2011Q4

us-gaap

Accumulated Other Comprehensive Income Loss Net Of Tax

AccumulatedOtherComprehensiveIncomeLossNetOfTax

-176000000

CY2011Q4

us-gaap

Notional Amount Of Other Derivatives Not Designated As Hedging Instruments

NotionalAmountOfOtherDerivativesNotDesignatedAsHedgingInstruments

87616000000

CY2011Q4

us-gaap

Schedule Of Insured Financial Obligations With Credit Deterioration Reductions Of Gross Claim Liability Net Discount

ScheduleOfInsuredFinancialObligationsWithCreditDeteriorationReductionsOfGrossClaimLiabilityNetDiscount

177000000

CY2011Q4

us-gaap

Retained Earnings Accumulated Deficit

RetainedEarningsAccumulatedDeficit

805000000

CY2011Q4

us-gaap

Assets

26873000000

CY2011Q4

us-gaap

Notional Amount Of Fair Value Hedge Instruments

NotionalAmountOfFairValueHedgeInstruments

241000000

CY2011Q4

us-gaap

Cash And Cash Equivalents At Carrying Value

CashAndCashEquivalentsAtCarryingValue

633000000

CY2011Q4

us-gaap

Schedule Of Insured Financial Obligations With Credit Deterioration Insured Contractual Payments Outstanding Principal

ScheduleOfInsuredFinancialObligationsWithCreditDeteriorationInsuredContractualPaymentsOutstandingPrincipal

16504000000

CY2011Q4

us-gaap

Schedule Of Insured Financial Obligations With Credit Deterioration Insured Contractual Payments Outstanding

ScheduleOfInsuredFinancialObligationsWithCreditDeteriorationInsuredContractualPaymentsOutstanding

25488000000

CY2011Q4

us-gaap

Schedule Of Insured Financial Obligations With Credit Deterioration Statement Of Financial Position Unearned Premium Revenue

ScheduleOfInsuredFinancialObligationsWithCreditDeteriorationStatementOfFinancialPositionUnearnedPremiumRevenue

308000000

CY2011Q4

us-gaap

Schedule Of Insured Financial Obligations With Credit Deterioration Insured Contractual Payments Outstanding Interest

ScheduleOfInsuredFinancialObligationsWithCreditDeteriorationInsuredContractualPaymentsOutstandingInterest

8984000000

CY2011Q4

us-gaap

Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price

ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

21.3330

CY2011Q4

us-gaap

Minority Interest

MinorityInterest

23000000

CY2011Q4

us-gaap

Schedule Of Insured Financial Obligations With Credit Deterioration Reductions Of Gross Claim Liability Gross Potential Recoveries

ScheduleOfInsuredFinancialObligationsWithCreditDeteriorationReductionsOfGrossClaimLiabilityGrossPotentialRecoveries

3813000000

CY2011Q4

us-gaap

Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number

ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber

6425073

shares

CY2011Q4

us-gaap

Schedule Of Insured Financial Obligations With Credit Deterioration Gross Claim Liability

ScheduleOfInsuredFinancialObligationsWithCreditDeteriorationGrossClaimLiability

1812000000

CY2011Q4

us-gaap

Liabilities And Stockholders Equity

LiabilitiesAndStockholdersEquity

26873000000

CY2011Q4

us-gaap

Common Stock Shares Issued

CommonStockSharesIssued

274896162

shares

CY2011Q4

us-gaap

Common Stock Value

CommonStockValue

275000000

CY2011Q4

us-gaap

Preferred Stock Shares Outstanding

PreferredStockSharesOutstanding

0

shares

CY2011Q4

us-gaap

Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number

ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber

2211878

shares

CY2011Q4

us-gaap

Derivative Assets Liabilities At Fair Value Net

DerivativeAssetsLiabilitiesAtFairValueNet

4800000000

CY2011Q4

us-gaap

Liabilities

25150000000

CY2011Q4

us-gaap

Debt Instrument Carrying Amount

DebtInstrumentCarryingAmount

901000000

CY2011Q4

us-gaap

Participating Policies Amount In Force

ParticipatingPoliciesAmountInForce

840100000000

CY2011Q4

us-gaap

Security Owned And Pledged As Collateral Fair Value

SecurityOwnedAndPledgedAsCollateralFairValue

1900000000

CY2011Q4

us-gaap

Preferred Stock Par Or Stated Value Per Share

PreferredStockParOrStatedValuePerShare

1

CY2011Q4

us-gaap

Treasury Stock Value

TreasuryStockValue

2276000000

CY2011Q4

us-gaap

Preferred Stock Shares Issued

PreferredStockSharesIssued

0

shares

CY2011Q4

us-gaap

Preferred Stock Value

PreferredStockValue

CY2011Q4

us-gaap

Commitments And Contingencies

CommitmentsAndContingencies

CY2011Q4

us-gaap

Fair Value Option Aggregate Differences Loans And Long Term Receivables

FairValueOptionAggregateDifferencesLoansAndLongTermReceivables

1435000000

CY2011Q4

us-gaap

Additional Paid In Capital

AdditionalPaidInCapital

3072000000

CY2011Q4

us-gaap

Schedule Of Insured Financial Obligations With Credit Deterioration Net Claim Liability

ScheduleOfInsuredFinancialObligationsWithCreditDeteriorationNetClaimLiability

-2178000000

CY2011Q4

us-gaap

Common Stock Par Or Stated Value Per Share

CommonStockParOrStatedValuePerShare

1

CY2011Q4

us-gaap

Stockholders Equity

StockholdersEquity

1700000000

CY2011Q4

us-gaap

Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held

OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld

341000000

CY2011Q4

mbi

Fair Value Liabilities Measured On Recurring Basis

FairValueLiabilitiesMeasuredOnRecurringBasis

10946000000

CY2011Q4

mbi

Accumulated Other Comprehensive Income Loss Available For Sale Securities Foreign Exchange

AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesForeignExchange

-5000000

CY2011Q4

mbi

Accumulated Other Comprehensive Income Loss Available For Sale Securities Tax

AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax

-86000000

CY2011Q4

mbi

Accumulated Other Comprehensive Loss Deferred Income Tax

AccumulatedOtherComprehensiveLossDeferredIncomeTax

105000000

CY2011Q4

mbi

Aggregate Amount Of Insured Par Outstanding Ceded To Reinsurers

AggregateAmountOfInsuredParOutstandingCededToReinsurers

4300000000

CY2011Q4

mbi

Aggregate Principal Amount In Excess Of Failure To Make Payment At Maturity

AggregatePrincipalAmountInExcessOfFailureToMakePaymentAtMaturity

10000000

CY2011Q4

mbi

Cash Collateral For Investment Agreements

CashCollateralForInvestmentAgreements

224000000

CY2011Q4

mbi

Derivative Fair Value Of Derivative Asset Net Of Counterparty Netting

DerivativeFairValueOfDerivativeAssetNetOfCounterpartyNetting

459000000

CY2011Q4

mbi

Derivative Fair Value Of Derivative Liability Net Of Counterparty Netting

DerivativeFairValueOfDerivativeLiabilityNetOfCounterpartyNetting

6000000000

CY2011Q4

mbi

Estimated Insurance Recoveries After Income Taxes

EstimatedInsuranceRecoveriesAfterIncomeTaxes

2000000000

CY2011Q4

mbi

Fair Value Of Credit Support Annexes

FairValueOfCreditSupportAnnexes

2000000

CY2011Q4

mbi

Fair Value Of Restricted Shares Awarded

FairValueOfRestrictedSharesAwarded

2000000

CY2011Q4

mbi

Fair Value Of Restricted Shares Cancelled

FairValueOfRestrictedSharesCancelled

1000000

CY2011Q4

mbi

Fair Value Of Securities On Deposit With Various Regulatory Authorities

FairValueOfSecuritiesOnDepositWithVariousRegulatoryAuthorities

11000000

CY2011Q4

mbi

Fair Value Of Warrants

FairValueOfWarrants

38000000

CY2011Q4

mbi

Fair Value Option Aggregate Fair Value Loans Receivable

FairValueOptionAggregateFairValueLoansReceivable

2046000000

CY2011Q4

mbi

Fair Value Option Aggregate Fair Value Long Term Debt Instruments

FairValueOptionAggregateFairValueLongTermDebtInstruments

4754000000

CY2011Q4

mbi

Fair Value Option Contractual Outstanding Principal Loans Receivable

FairValueOptionContractualOutstandingPrincipalLoansReceivable

3481000000

CY2011Q4

mbi

Fair Value Option Contractual Outstanding Principal Long Term Debt Instruments

FairValueOptionContractualOutstandingPrincipalLongTermDebtInstruments

13583000000

CY2011Q4

mbi

Impact Of Non Performance Risk On Insured Derivative Liability

ImpactOfNonPerformanceRiskOnInsuredDerivativeLiability

5700000000

CY2011Q4

mbi

Long Term Debt Before Surplus Notes Noncurrent

LongTermDebtBeforeSurplusNotesNoncurrent

900000000

CY2011Q4

mbi

Number Of Policies

NumberOfPolicies

296

Policies

CY2011Q4

mbi

Securities Pledged As Collateral To Derivative Counterparties

SecuritiesPledgedAsCollateralToDerivativeCounterparties

470000000

CY2011Q4

mbi

Transactions Guaranteed On Behalf Of Various Affiliates

TransactionsGuaranteedOnBehalfOfVariousAffiliates

4400000000

CY2011Q4

mbi

Weighted Average Contractual Maturity Period Of Securities Unrealized Loss Position

WeightedAverageContractualMaturityPeriodOfSecuritiesUnrealizedLossPosition

21

Y

CY2011Q4

mbi

Other Assets And Derivative Assets Vie After Counterparty Netting And Embedded Reclass

OtherAssetsAndDerivativeAssetsVieAfterCounterpartyNettingAndEmbeddedReclass

452000000

CY2011Q4

mbi

Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions

SecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions

290

pure

CY2011Q4

mbi

Percentage Of Recognized Estimated Recoveries In Relationship To Consolidated Shareholders Equity

PercentageOfRecognizedEstimatedRecoveriesInRelationshipToConsolidatedShareholdersEquity

1.19

pure

CY2011Q4

mbi

Accumulated Other Comprehensive Income Loss Available For Sale Securities Gross Unrealized Gains

AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesGrossUnrealizedGains

263000000

CY2011Q4

mbi

Accumulated Other Comprehensive Income Loss Available For Sale Securities Gross Unrealized Losses

AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesGrossUnrealizedLosses

478000000

CY2011Q4

mbi

Accumulated Other Comprehensive Income Loss Available For Sale Securities Unrealized Gain Loss Before Tax

AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesUnrealizedGainLossBeforeTax

-220000000

CY2011Q4

mbi

Accumulated Other Comprehensive Income Loss Available For Sale Securities Unrealized Gain Loss Net Of Tax

AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesUnrealizedGainLossNetOfTax

-134000000

CY2011Q4

mbi

Derivative Asset Counterparty Netting Amount Fair Value

DerivativeAssetCounterpartyNettingAmountFairValue

93000000

CY2011Q4

mbi

Derivative Liability Counterparty Netting Amount Fair Value

DerivativeLiabilityCounterpartyNettingAmountFairValue

93000000

CY2012Q4

invest

Derivative Notional Amount

DerivativeNotionalAmount

58640000000

CY2012Q4

us-gaap

Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value

ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue

9000000

CY2012Q4

us-gaap

Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price

ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice

45.0174

CY2012Q4

us-gaap

Financial Guarantee Insurance Contracts Premium Expected To Be Collected During First Quarter Following Balance Sheet Date

FinancialGuaranteeInsuranceContractsPremiumExpectedToBeCollectedDuringFirstQuarterFollowingBalanceSheetDate

30000000

CY2012Q4

us-gaap

Financial Guarantee Insurance Contracts Premium Expected To Be Collected More Than One And Within Two Years From Balance Sheet Date

FinancialGuaranteeInsuranceContractsPremiumExpectedToBeCollectedMoreThanOneAndWithinTwoYearsFromBalanceSheetDate

125000000

CY2012Q4

us-gaap

Fair Value Option Aggregate Differences Long Term Debt Instruments

FairValueOptionAggregateDifferencesLongTermDebtInstruments

5362000000

CY2012Q4

us-gaap

Availableforsale Securities Continuous Unrealized Loss Position Aggregate Losses2

AvailableforsaleSecuritiesContinuousUnrealizedLossPositionAggregateLosses2

139000000

CY2012Q4

us-gaap

Derivative Collateral Right To Reclaim Cash

DerivativeCollateralRightToReclaimCash

285000000

CY2012Q4

us-gaap

Schedule Of Insured Financial Obligations With Credit Deterioration Number Of Contracts Issued And Outstanding

ScheduleOfInsuredFinancialObligationsWithCreditDeteriorationNumberOfContractsIssuedAndOutstanding

190

Issues

CY2012Q4

us-gaap

Treasury Stock Shares

TreasuryStockShares

81733530

shares

CY2012Q4

us-gaap

Common Stock Shares Authorized

CommonStockSharesAuthorized

400000000

shares

CY2012Q4

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

248000000

CY2012Q4

us-gaap

Stockholders Equity Including Portion Attributable To Noncontrolling Interest

StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest

3194000000

CY2012Q4

us-gaap

Unrecognized Tax Benefits

UnrecognizedTaxBenefits

47000000

CY2012Q4

us-gaap

Debt Instrument Unamortized Discount

DebtInstrumentUnamortizedDiscount

1000000

CY2012Q4

us-gaap

Preferred Stock Shares Authorized

PreferredStockSharesAuthorized

10000000

shares

CY2012Q4

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

226000000

CY2012Q4

us-gaap

Financial Guarantee Insurance Contracts Premium Expected To Be Collected During Third Quarter Following Balance Sheet Date

FinancialGuaranteeInsuranceContractsPremiumExpectedToBeCollectedDuringThirdQuarterFollowingBalanceSheetDate

30000000

CY2012Q4

us-gaap

Participating Policies As Percentage Of Gross Insurance In Force

ParticipatingPoliciesAsPercentageOfGrossInsuranceInForce

1.000

pure

CY2012Q4

us-gaap

Investments Fair Value Disclosure

InvestmentsFairValueDisclosure

12174000000

CY2012Q4

us-gaap

Accumulated Other Comprehensive Income Loss Net Of Tax

AccumulatedOtherComprehensiveIncomeLossNetOfTax

56000000

CY2012Q4

us-gaap

Treasury Stock Number Of Shares Held

TreasuryStockNumberOfSharesHeld

56700000

shares

CY2012Q4

us-gaap

Notional Amount Of Other Derivatives Not Designated As Hedging Instruments

NotionalAmountOfOtherDerivativesNotDesignatedAsHedgingInstruments

58640000000

CY2012Q4

us-gaap

Financial Guarantee Insurance Contracts Premium Expected To Be Collected More Than Five And Within10 Years From Balance Sheet Date

FinancialGuaranteeInsuranceContractsPremiumExpectedToBeCollectedMoreThanFiveAndWithin10YearsFromBalanceSheetDate

378000000

CY2012Q4

us-gaap

Schedule Of Insured Financial Obligations With Credit Deterioration Reductions Of Gross Claim Liability Net Discount

ScheduleOfInsuredFinancialObligationsWithCreditDeteriorationReductionsOfGrossClaimLiabilityNetDiscount

229000000

CY2012Q4

us-gaap

Retained Earnings Accumulated Deficit

RetainedEarningsAccumulatedDeficit

2039000000

CY2012Q4

us-gaap

Assets

21724000000

CY2012Q4

us-gaap

Cash And Cash Equivalents At Carrying Value

CashAndCashEquivalentsAtCarryingValue

990000000

CY2012Q4

us-gaap

Schedule Of Insured Financial Obligations With Credit Deterioration Insured Contractual Payments Outstanding Principal

ScheduleOfInsuredFinancialObligationsWithCreditDeteriorationInsuredContractualPaymentsOutstandingPrincipal

15257000000

CY2012Q4

us-gaap

Deferred Tax Assets Capital Loss Carryforwards

DeferredTaxAssetsCapitalLossCarryforwards

162000000

CY2012Q4

us-gaap

Schedule Of Insured Financial Obligations With Credit Deterioration Insured Contractual Payments Outstanding

ScheduleOfInsuredFinancialObligationsWithCreditDeteriorationInsuredContractualPaymentsOutstanding

23618000000

CY2012Q4

us-gaap

Financial Guarantee Insurance Contracts Premium Expected To Be Collected More Than Four And Within Five Years From Balance Sheet Date

FinancialGuaranteeInsuranceContractsPremiumExpectedToBeCollectedMoreThanFourAndWithinFiveYearsFromBalanceSheetDate

99000000

CY2012Q4

us-gaap

Financial Guarantee Insurance Contracts Premium Expected To Be Collected More Than Three And Within Four Years From Balance Sheet Date

FinancialGuaranteeInsuranceContractsPremiumExpectedToBeCollectedMoreThanThreeAndWithinFourYearsFromBalanceSheetDate

109000000

CY2012Q4

us-gaap

Schedule Of Insured Financial Obligations With Credit Deterioration Statement Of Financial Position Unearned Premium Revenue

ScheduleOfInsuredFinancialObligationsWithCreditDeteriorationStatementOfFinancialPositionUnearnedPremiumRevenue

278000000

CY2012Q4

us-gaap

Schedule Of Insured Financial Obligations With Credit Deterioration Insured Contractual Payments Outstanding Interest

ScheduleOfInsuredFinancialObligationsWithCreditDeteriorationInsuredContractualPaymentsOutstandingInterest

8361000000

CY2012Q4

us-gaap

Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price

ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

19.0485

CY2012Q4

us-gaap

Minority Interest

MinorityInterest

21000000

CY2012Q4

us-gaap

Schedule Of Insured Financial Obligations With Credit Deterioration Reductions Of Gross Claim Liability Gross Potential Recoveries

ScheduleOfInsuredFinancialObligationsWithCreditDeteriorationReductionsOfGrossClaimLiabilityGrossPotentialRecoveries

4109000000

CY2012Q4

us-gaap

Debt Instrument Fair Value

DebtInstrumentFairValue

3700000000

CY2012Q4

us-gaap

Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number

ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber

5963268

shares

CY2012Q4

us-gaap

Deferred Tax Assets Net

DeferredTaxAssetsNet

1200000000

CY2012Q4

us-gaap

Financial Guarantee Insurance Contracts Future Expected Premium Revenue To Be Recognized During First Quarter Following Balance Sheet Date

FinancialGuaranteeInsuranceContractsFutureExpectedPremiumRevenueToBeRecognizedDuringFirstQuarterFollowingBalanceSheetDate

85000000

CY2012Q4

us-gaap

Schedule Of Insured Financial Obligations With Credit Deterioration Net Claim Liability

ScheduleOfInsuredFinancialObligationsWithCreditDeteriorationNetClaimLiability

-2749000000

CY2012Q4

us-gaap

Financial Guarantee Insurance Contracts Future Expected Premium Revenue To Be Recognized During Second Quarter Following Balance Sheet Date

FinancialGuaranteeInsuranceContractsFutureExpectedPremiumRevenueToBeRecognizedDuringSecondQuarterFollowingBalanceSheetDate

84000000

CY2012Q4

us-gaap

Common Stock Par Or Stated Value Per Share

CommonStockParOrStatedValuePerShare

1

CY2012Q4

us-gaap

Financial Guarantee Insurance Contracts Premium Expected To Be Collected During Fourth Quarter Following Balance Sheet Date

FinancialGuaranteeInsuranceContractsPremiumExpectedToBeCollectedDuringFourthQuarterFollowingBalanceSheetDate

36000000

CY2012Q4

us-gaap

Debt Instrument Repurchase Amount

DebtInstrumentRepurchaseAmount

172000000

CY2012Q4

us-gaap

Financial Guarantee Insurance Contracts Future Expected Premium Revenue To Be Recognized During Fourth Quarter Following Balance Sheet Date

FinancialGuaranteeInsuranceContractsFutureExpectedPremiumRevenueToBeRecognizedDuringFourthQuarterFollowingBalanceSheetDate

79000000

CY2012Q4

us-gaap

Reinsurance Recoverables

ReinsuranceRecoverables

14000000

CY2012Q4

us-gaap

Financial Guarantee Insurance Contracts Future Expected Premium Revenue To Be Recognized During Third Quarter Following Balance Sheet Date

FinancialGuaranteeInsuranceContractsFutureExpectedPremiumRevenueToBeRecognizedDuringThirdQuarterFollowingBalanceSheetDate

81000000

CY2012Q4

us-gaap

Schedule Of Insured Financial Obligations With Credit Deterioration Gross Claim Liability

ScheduleOfInsuredFinancialObligationsWithCreditDeteriorationGrossClaimLiability

1589000000

CY2012Q4

us-gaap

Liabilities And Stockholders Equity

LiabilitiesAndStockholdersEquity

21724000000

CY2012Q4

us-gaap

Common Stock Shares Issued

CommonStockSharesIssued

277405039

shares

CY2012Q4

us-gaap

Financial Guarantee Insurance Contracts Future Expected Premium Revenue To Be Recognized

FinancialGuaranteeInsuranceContractsFutureExpectedPremiumRevenueToBeRecognized

3246000000

CY2012Q4

us-gaap

Common Stock Value

CommonStockValue

277000000

CY2012Q4

us-gaap

Preferred Stock Shares Outstanding

PreferredStockSharesOutstanding

0

shares

CY2012Q4

us-gaap

Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number

ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber

1751173

shares

CY2012Q4

us-gaap

Derivative Assets Liabilities At Fair Value Net

DerivativeAssetsLiabilitiesAtFairValueNet

2900000000

CY2012Q4

us-gaap

Financial Guarantee Insurance Contracts Premium Expected To Be Collected During Second Quarter Following The Balance Sheet Date

FinancialGuaranteeInsuranceContractsPremiumExpectedToBeCollectedDuringSecondQuarterFollowingTheBalanceSheetDate

43000000

CY2012Q4

us-gaap

Liabilities

18530000000

CY2012Q4

us-gaap

Debt Instrument Carrying Amount

DebtInstrumentCarryingAmount

723000000

CY2012Q4

us-gaap

Summary Of Investments Other Than Investments In Related Parties Fair Value

SummaryOfInvestmentsOtherThanInvestmentsInRelatedPartiesFairValue

5862000000

CY2012Q4

us-gaap

Available For Sale Securities Continuous Unrealized Loss Position Fair Value

AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue

880000000

CY2012Q4

us-gaap

Participating Policies Amount In Force

ParticipatingPoliciesAmountInForce

679100000000

CY2012Q4

us-gaap

Security Owned And Pledged As Collateral Fair Value

SecurityOwnedAndPledgedAsCollateralFairValue

820000000

CY2012Q4

us-gaap

Preferred Stock Par Or Stated Value Per Share

PreferredStockParOrStatedValuePerShare

1

CY2012Q4

us-gaap

Treasury Stock Value

TreasuryStockValue

2275000000

CY2012Q4

us-gaap

Financial Guarantee Insurance Contracts Premium Expected To Be Collected More Than Two And Within Three Years From Balance Sheet Date

FinancialGuaranteeInsuranceContractsPremiumExpectedToBeCollectedMoreThanTwoAndWithinThreeYearsFromBalanceSheetDate

117000000

CY2012Q4

us-gaap

Preferred Stock Shares Issued

PreferredStockSharesIssued

0

shares

CY2012Q4

us-gaap

Preferred Stock Value

PreferredStockValue

CY2012Q4

us-gaap

Commitments And Contingencies

CommitmentsAndContingencies

CY2012Q4

us-gaap

Fair Value Option Aggregate Differences Loans And Long Term Receivables

FairValueOptionAggregateDifferencesLoansAndLongTermReceivables

889000000

CY2012Q4

us-gaap

Additional Paid In Capital

AdditionalPaidInCapital

3076000000

CY2012Q4

us-gaap

Summary Of Investments Other Than Investments In Related Parties Cost

SummaryOfInvestmentsOtherThanInvestmentsInRelatedPartiesCost

5758000000

CY2012Q4

us-gaap

Summary Of Investments Other Than Investments In Related Parties Carrying Amount

SummaryOfInvestmentsOtherThanInvestmentsInRelatedPartiesCarryingAmount

5862000000

CY2012Q4

us-gaap

Deferred Tax Assets Tax Credit Carryforwards Other

DeferredTaxAssetsTaxCreditCarryforwardsOther

19000000

CY2012Q4

us-gaap

Financial Guarantee Insurance Contracts Premium Expected To Be Collected More Than10 And Within15 Years From Balance Sheet Date

FinancialGuaranteeInsuranceContractsPremiumExpectedToBeCollectedMoreThan10AndWithin15YearsFromBalanceSheetDate

264000000

CY2012Q4

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

296000000

CY2012Q4

us-gaap

Stockholders Equity

StockholdersEquity

3173000000

CY2012Q4

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

270000000

CY2012Q4

us-gaap

Financial Guarantee Insurance Contracts Premium Receivable Premium Expected To Be Collected

FinancialGuaranteeInsuranceContractsPremiumReceivablePremiumExpectedToBeCollected

1534000000

CY2012Q4

us-gaap

Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held

OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld

197000000

CY2012Q4

us-gaap

Operating Loss Carryforwards

OperatingLossCarryforwards

1400000000

CY2012Q4

mbi

Fair Value Liabilities Measured On Recurring Basis

FairValueLiabilitiesMeasuredOnRecurringBasis

6926000000

CY2012Q4

mbi

Accumulated Other Comprehensive Income Loss Available For Sale Securities Foreign Exchange

AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesForeignExchange

24000000

CY2012Q4

mbi

Accumulated Other Comprehensive Income Loss Available For Sale Securities Tax

AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax

31000000

CY2012Q4

mbi

Accumulated Other Comprehensive Loss Deferred Income Tax

AccumulatedOtherComprehensiveLossDeferredIncomeTax

21000000

CY2012Q4

mbi

Aggregate Amount Of Insured Par Outstanding Ceded To Reinsurers

AggregateAmountOfInsuredParOutstandingCededToReinsurers

3420000000

CY2012Q4

mbi

Aggregate Of Estimated Potential Recoveries

AggregateOfEstimatedPotentialRecoveries

3600000000

CY2012Q4

mbi

Aggregate Principal Amount In Excess Of Failure To Make Payment At Maturity

AggregatePrincipalAmountInExcessOfFailureToMakePaymentAtMaturity

10000000

CY2012Q4

mbi

Cash Collateral For Investment Agreements

CashCollateralForInvestmentAgreements

144000000

CY2012Q4

mbi

Charged Off Loan Recovery Value

ChargedOffLoanRecoveryValue

0

CY2012Q4

mbi

Derivative Fair Value Of Derivative Asset Net Of Counterparty Netting

DerivativeFairValueOfDerivativeAssetNetOfCounterpartyNetting

12000000

CY2012Q4

mbi

Derivative Fair Value Of Derivative Liability Net Of Counterparty Netting

DerivativeFairValueOfDerivativeLiabilityNetOfCounterpartyNetting

3100000000

CY2012Q4

mbi

Derivatives Ceded Under Reinsurance Agreements

DerivativesCededUnderReinsuranceAgreements

392000000

CY2012Q4

mbi

Estimated Insurance Recoveries After Income Taxes

EstimatedInsuranceRecoveriesAfterIncomeTaxes

2300000000

CY2012Q4

mbi

Estimated Tax Liability On Disposition Of Foreign Subsidiary

EstimatedTaxLiabilityOnDispositionOfForeignSubsidiary

17000000

CY2012Q4

mbi

Fair Value Of Credit Support Annexes

FairValueOfCreditSupportAnnexes

4000000

CY2012Q4

mbi

Fair Value Of Restricted Shares Awarded

FairValueOfRestrictedSharesAwarded

21000000

CY2012Q4

mbi

Fair Value Of Restricted Shares Cancelled

FairValueOfRestrictedSharesCancelled

2000000

CY2012Q4

mbi

Fair Value Of Securities On Deposit With Various Regulatory Authorities

FairValueOfSecuritiesOnDepositWithVariousRegulatoryAuthorities

10000000

CY2012Q4

mbi

Fair Value Of Warrants

FairValueOfWarrants

6000000

CY2012Q4

mbi

Fair Value Option Aggregate Fair Value Loans Receivable

FairValueOptionAggregateFairValueLoansReceivable

1881000000

CY2012Q4

mbi

Fair Value Option Aggregate Fair Value Long Term Debt Instruments

FairValueOptionAggregateFairValueLongTermDebtInstruments

3659000000

CY2012Q4

mbi

Fair Value Option Contractual Outstanding Principal Loans Receivable

FairValueOptionContractualOutstandingPrincipalLoansReceivable

2770000000

CY2012Q4

mbi

Fair Value Option Contractual Outstanding Principal Long Term Debt Instruments

FairValueOptionContractualOutstandingPrincipalLongTermDebtInstruments

9021000000

CY2012Q4

mbi

Financial Guarantee Insurance Contracts Future Expected Premium Revenue To Be Recognized During Eleventh Through Fifteenth Year Following Balance Sheet Date

FinancialGuaranteeInsuranceContractsFutureExpectedPremiumRevenueToBeRecognizedDuringEleventhThroughFifteenthYearFollowingBalanceSheetDate

523000000

CY2012Q4

mbi

Financial Guarantee Insurance Contracts Future Expected Premium Revenue To Be Recognized During Sixth Through Tenth Year Following Balance Sheet Date

FinancialGuaranteeInsuranceContractsFutureExpectedPremiumRevenueToBeRecognizedDuringSixthThroughTenthYearFollowingBalanceSheetDate

861000000

CY2012Q4

mbi

Financial Guarantee Insurance Contracts Premium Expected To Be Collected During Twenty First Year And Thereafter From Balance Sheet Date

FinancialGuaranteeInsuranceContractsPremiumExpectedToBeCollectedDuringTwentyFirstYearAndThereafterFromBalanceSheetDate

303000000

CY2012Q4

mbi

Guarantee Obligations Maximum Net Exposure

GuaranteeObligationsMaximumNetExposure

50900000000

CY2012Q4

mbi

Impact Of Non Performance Risk On Insured Derivative Liability

ImpactOfNonPerformanceRiskOnInsuredDerivativeLiability

4400000000

CY2012Q4

mbi

Issued Commercial Paper To Fund Purchase Of Assets From Clients Maturity In Days

IssuedCommercialPaperToFundPurchaseOfAssetsFromClientsMaturityInDays

270

D

CY2012Q4

mbi

Long Term Debt Before Surplus Notes Noncurrent

LongTermDebtBeforeSurplusNotesNoncurrent

722000000

CY2012Q4

mbi

Number Of Policies

NumberOfPolicies

295

Policies

CY2012Q4

mbi

Number Of Transactions Received Consideration And Excluded From Loan Files Reviewed With Potential Recoveries

NumberOfTransactionsReceivedConsiderationAndExcludedFromLoanFilesReviewedWithPotentialRecoveries

2

pure

CY2012Q4

mbi

Outstanding Exposure On Surety Bonds

OutstandingExposureOnSuretyBonds

340000000

CY2012Q4

mbi

Proprietary Performance Data On Cre Loans Amount

ProprietaryPerformanceDataOnCreLoansAmount

80000

CY2012Q4

mbi

Reinsurance Recoverables On Paid Losses

ReinsuranceRecoverablesOnPaidLosses

1000000

CY2012Q4

mbi

Reinsurance Recoverables On Un Paid Losses

ReinsuranceRecoverablesOnUnPaidLosses

13000000

CY2012Q4

mbi

Transactions Guaranteed On Behalf Of Various Affiliates

TransactionsGuaranteedOnBehalfOfVariousAffiliates

3400000000

CY2012Q4

mbi

Unearned Compensation Net Of Estimated Forfeitures

UnearnedCompensationNetOfEstimatedForfeitures

20000000

CY2012Q4

mbi

Unearned Compensation Net Of Estimated Forfeitures Expected To Be Recognized In Years

UnearnedCompensationNetOfEstimatedForfeituresExpectedToBeRecognizedInYears

2.5

Y

CY2012Q4

mbi

Weighted Average Contractual Maturity Period Of Securities Unrealized Loss Position

WeightedAverageContractualMaturityPeriodOfSecuritiesUnrealizedLossPosition

23

Y

CY2012Q4

mbi

Number Of Variable Interest Entities Consolidated

NumberOfVariableInterestEntitiesConsolidated

0

Entity

CY2012Q4

mbi

Reinsurance Recoverables Secured By Letters Of Credit Amount

ReinsuranceRecoverablesSecuredByLettersOfCreditAmount

8000000

CY2012Q4

mbi

Other Assets And Derivative Assets Vie After Counterparty Netting And Embedded Reclass

OtherAssetsAndDerivativeAssetsVieAfterCounterpartyNettingAndEmbeddedReclass

4000000

CY2012Q4

mbi

Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions

SecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions

153

pure

CY2012Q4

mbi

Aggregate Claim Amount

AggregateClaimAmount

7000000000

CY2012Q4

mbi

Percentage Of Recognized Estimated Recoveries In Relationship To Consolidated Shareholders Equity

PercentageOfRecognizedEstimatedRecoveriesInRelationshipToConsolidatedShareholdersEquity

0.73

pure

CY2012Q4

mbi

Accumulated Other Comprehensive Income Loss Available For Sale Securities Gross Unrealized Gains

AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesGrossUnrealizedGains

251000000

CY2012Q4

mbi

Accumulated Other Comprehensive Income Loss Available For Sale Securities Gross Unrealized Losses

AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesGrossUnrealizedLosses

152000000

CY2012Q4

mbi

Accumulated Other Comprehensive Income Loss Available For Sale Securities Unrealized Gain Loss Before Tax

AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesUnrealizedGainLossBeforeTax

123000000

CY2012Q4

mbi

Accumulated Other Comprehensive Income Loss Available For Sale Securities Unrealized Gain Loss Net Of Tax

AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesUnrealizedGainLossNetOfTax

92000000

CY2012Q4

mbi

Percentage Of Securities Fair Value Below Book Value

PercentageOfSecuritiesFairValueBelowBookValue

0.05

pure

CY2012Q4

mbi

Financial Guarantee Insurance Contracts Future Expected Premium Revenue To Be Recognized During Sixteenth Year And Thereafter Following Balance Sheet Date

FinancialGuaranteeInsuranceContractsFutureExpectedPremiumRevenueToBeRecognizedDuringSixteenthYearAndThereafterFollowingBalanceSheetDate

493000000

CY2012Q4

mbi

Derivative Asset Counterparty Netting Amount Fair Value

DerivativeAssetCounterpartyNettingAmountFairValue

90000000

CY2012Q4

mbi

Derivative Liability Counterparty Netting Amount Fair Value

DerivativeLiabilityCounterpartyNettingAmountFairValue

90000000

CY2012Q4

mbi

Assured Guaranty Favorable Ruling On Breach Of Mortgage Representations

AssuredGuarantyFavorableRulingOnBreachOfMortgageRepresentations

90000000

CY2012Q4

mbi

Amount Released From Escrow In Subsequent Fiscal Period

AmountReleasedFromEscrowInSubsequentFiscalPeriod

115000000

mbi

Number Of Structured Commercial Mortgage Backed Securities Commutations

NumberOfStructuredCommercialMortgageBackedSecuritiesCommutations

66

mbi

Gross Exposure Commuted On Commercial Mortgage Backed Securities Insured Derivatives

GrossExposureCommutedOnCommercialMortgageBackedSecuritiesInsuredDerivatives

33100000000

mbi

Aggregate Itd Credit Impairment On Commercial Mortgage Backed Securities Derivatives

AggregateItdCreditImpairmentOnCommercialMortgageBackedSecuritiesDerivatives

3600000000

CY2012Q4

mbi

Percentage Of Current Roll To Loss For Transaction

PercentageOfCurrentRollToLossForTransaction

0.03

pure

CY2012Q4

mbi

Percentage Of Loans Charged Off

PercentageOfLoansChargedOff

0.30

pure

CY2012Q4

mbi

Percentage Of Loans In Thirty To Fifty Nine Day Delinquent Bucket

PercentageOfLoansInThirtyToFiftyNineDayDelinquentBucket

0.10

pure

CY2007Q1

us-gaap

Stock Repurchase Program Authorized Amount

StockRepurchaseProgramAuthorizedAmount

1000000000

CY2011Q3

mbi

Number Of Directors

NumberOfDirectors

2

Directors

CY2010

us-gaap

Other Comprehensive Income Foreign Currency Translation Gain Loss Arising During Period Tax

OtherComprehensiveIncomeForeignCurrencyTranslationGainLossArisingDuringPeriodTax

2000000

CY2010

us-gaap

Proceeds From Income Tax Refunds

ProceedsFromIncomeTaxRefunds

414000000

CY2010

us-gaap

Increase Decrease In Premiums Receivable

IncreaseDecreaseInPremiumsReceivable

-259000000

CY2010

us-gaap

Repayments Of Long Term Debt

RepaymentsOfLongTermDebt

393000000

CY2010

us-gaap

Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax

OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax

-7000000

CY2010

us-gaap

Increase Decrease In Loss And Loss Adjustment Expense Reserve

IncreaseDecreaseInLossAndLossAdjustmentExpenseReserve

81000000

CY2010

us-gaap

Profit Loss

ProfitLoss

53000000

CY2010

us-gaap

Net Cash Provided By Used In Investing Activities

NetCashProvidedByUsedInInvestingActivities

4778000000

CY2010

us-gaap

Repayments Of Medium Term Notes

RepaymentsOfMediumTermNotes

507000000

CY2010

us-gaap

Minority Interest Change In Redemption Value

MinorityInterestChangeInRedemptionValue

-3000000

CY2010

us-gaap

Weighted Average Number Of Shares Outstanding Basic

WeightedAverageNumberOfSharesOutstandingBasic

202421433

shares

CY2010

us-gaap

Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period

ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod

1493873

shares

CY2010

us-gaap

Payments For Proceeds From Short Term Investments

PaymentsForProceedsFromShortTermInvestments

-662000000

CY2010

us-gaap

Income Tax Effects Allocated Directly To Equity Cumulative Effect Of Change In Accounting Principle

IncomeTaxEffectsAllocatedDirectlyToEquityCumulativeEffectOfChangeInAccountingPrinciple

-21000000

CY2010

us-gaap

Proceeds From Payments For In Securities Sold Under Agreements To Repurchase

ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase

-31000000

CY2010

us-gaap

Payments To Acquire Held To Maturity Securities

PaymentsToAcquireHeldToMaturitySecurities

157000000

CY2010

us-gaap

Increase Decrease In Unearned Premiums

IncreaseDecreaseInUnearnedPremiums

-635000000

CY2010

us-gaap

Effective Income Tax Rate Continuing Operations

EffectiveIncomeTaxRateContinuingOperations

1.558

pure

CY2010

us-gaap

Treasury Stock Value Acquired Cost Method

TreasuryStockValueAcquiredCostMethod

31000000

CY2010

us-gaap

Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments

IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

-95000000

CY2010

us-gaap

Payments To Acquire Interest In Subsidiaries And Affiliates

PaymentsToAcquireInterestInSubsidiariesAndAffiliates

27000000

CY2010

us-gaap

Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation

AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation

3000000

CY2010

us-gaap

Earnings Per Share Diluted

EarningsPerShareDiluted

0.26

CY2010

us-gaap

Ceded Premiums Written Financial Guarantee Insurance Contracts

CededPremiumsWrittenFinancialGuaranteeInsuranceContracts

-229000000

CY2010

us-gaap

Payments To Minority Shareholders

PaymentsToMinorityShareholders

29000000

CY2010

us-gaap

Other Comprehensive Income Loss Reclassification Adjustment For Write Down Of Securities Included In Net Income Tax

OtherComprehensiveIncomeLossReclassificationAdjustmentForWriteDownOfSecuritiesIncludedInNetIncomeTax

30000000

CY2010

us-gaap

Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance

EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance

1.194

pure

CY2010

us-gaap

Income Tax Expense Benefit Intraperiod Tax Allocation

IncomeTaxExpenseBenefitIntraperiodTaxAllocation

-63000000

CY2010

us-gaap

Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions No Previous Impairment

OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsNoPreviousImpairment

24000000

CY2010

us-gaap

Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax

OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax

2000000

CY2010

us-gaap

Other Comprehensive Income Loss Reclassification Adjustment On Derivatives Included In Net Income Tax

OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeTax

9000000

CY2010

us-gaap

Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price

ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice

5.0500

CY2010

us-gaap

Effective Income Tax Rate Reconciliation Other Adjustments

EffectiveIncomeTaxRateReconciliationOtherAdjustments

-0.014

pure

CY2010

us-gaap

Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities

AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities

-999000000

CY2010

us-gaap

Other Comprehensive Income Loss Reclassification Adjustment On Derivatives Included In Net Income Net Of Tax

OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeNetOfTax

17000000

CY2010

us-gaap

Increase Decrease In Deferred Policy Acquisition Costs

IncreaseDecreaseInDeferredPolicyAcquisitionCosts

-61000000

CY2010

us-gaap

Cash And Cash Equivalents Period Increase Decrease

CashAndCashEquivalentsPeriodIncreaseDecrease

327000000

CY2010

us-gaap

Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities

ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities

756000000

CY2010

us-gaap

Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost

IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost

3000000

CY2010

us-gaap

Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential

EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential

-0.018

pure

CY2010

us-gaap

Current State And Local Tax Expense Benefit

CurrentStateAndLocalTaxExpenseBenefit

-17000000

CY2010

us-gaap

Fees And Commissions Other

FeesAndCommissionsOther

7000000

CY2010

us-gaap

Proceeds From Sale Of Available For Sale Securities

ProceedsFromSaleOfAvailableForSaleSecurities

11896000000

CY2010

us-gaap

Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Securities Sold

OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsSecuritiesSold

16000000

CY2010

us-gaap

Other Noncash Income Expense

OtherNoncashIncomeExpense

-265000000

CY2010

us-gaap

Proceeds From Sale And Collection Of Loans Receivable

ProceedsFromSaleAndCollectionOfLoansReceivable

860000000

CY2010

us-gaap

Assumed Premiums Written Financial Guarantee Insurance Contracts

AssumedPremiumsWrittenFinancialGuaranteeInsuranceContracts

7000000

CY2010

us-gaap

Proceeds From Stock Plans

ProceedsFromStockPlans

2000000

CY2010

us-gaap

Earnings Per Share Basic

EarningsPerShareBasic

0.26

CY2010

us-gaap

Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax

OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax

-143000000

CY2010

us-gaap

Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Tax Portion Attributable To Parent

OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossTaxPortionAttributableToParent

4000000

CY2010

us-gaap

Deferred Income Tax Expense Benefit

DeferredIncomeTaxExpenseBenefit

-221000000

CY2010

us-gaap

Net Income Loss

NetIncomeLoss

53000000

CY2010

us-gaap

Direct Premiums Written Financial Guarantee Insurance Contracts

DirectPremiumsWrittenFinancialGuaranteeInsuranceContracts

-19000000

CY2010

us-gaap

Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period

ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod

1100000

shares

CY2010

us-gaap

Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax

OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax

14000000

CY2010

us-gaap

Payments For Repurchase Of Common Stock

PaymentsForRepurchaseOfCommonStock

31000000

CY2010

us-gaap

Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax

OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax

2000000

CY2010

us-gaap

Other Comprehensive Income Loss Reclassification Adjustment For Writedown Of Securities Included In Net Income Net Of Tax

OtherComprehensiveIncomeLossReclassificationAdjustmentForWritedownOfSecuritiesIncludedInNetIncomeNetOfTax

55000000

CY2010

us-gaap

Weighted Average Number Of Diluted Shares Outstanding

WeightedAverageNumberOfDilutedSharesOutstanding

203021134

shares

CY2010

us-gaap

Net Cash Provided By Used In Financing Activities

NetCashProvidedByUsedInFinancingActivities

-3505000000

CY2010

us-gaap

Other Comprehensive Income Loss Reclassification Adjustment For Sale Of Securities Included In Net Income Tax

OtherComprehensiveIncomeLossReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeTax

82000000

CY2010

us-gaap

Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent Availableforsale Securities

OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAvailableforsaleSecurities

26000000

CY2010

us-gaap

Weighted Average Number Diluted Shares Outstanding Adjustment

WeightedAverageNumberDilutedSharesOutstandingAdjustment

599701

shares

CY2010

us-gaap

Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate

EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate

0.35

pure

CY2010

us-gaap

Available For Sale Securities Gross Realized Gains

AvailableForSaleSecuritiesGrossRealizedGains

92000000

CY2010

us-gaap

Effective Income Tax Rate Reconciliation Tax Exempt Income

EffectiveIncomeTaxRateReconciliationTaxExemptIncome

0.402

pure

CY2010

us-gaap

Comprehensive Income Net Of Tax

ComprehensiveIncomeNetOfTax

239000000

CY2010

us-gaap

Current Federal Tax Expense Benefit

CurrentFederalTaxExpenseBenefit

91000000

CY2010

us-gaap

Revenues

894000000

CY2010

us-gaap

Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions

UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions

21000000

CY2010

us-gaap

Interest Paid Net

InterestPaidNet

574000000

CY2010

us-gaap

Income Tax Expense Benefit

IncomeTaxExpenseBenefit

-148000000

CY2010

us-gaap

Stock Issued During Period Value Share Based Compensation

StockIssuedDuringPeriodValueShareBasedCompensation

7000000

CY2010

us-gaap

Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax

OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax

134000000

CY2010

us-gaap

Payments Of Dividends

PaymentsOfDividends

1000000

CY2010

us-gaap

Unrealized Gain Loss On Derivatives

UnrealizedGainLossOnDerivatives

-607000000

CY2010

us-gaap

Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period

ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod

805776

shares

CY2010

us-gaap

Undistributed Earnings

UndistributedEarnings

3000000

CY2010

us-gaap

Payments To Acquire Property Plant And Equipment

PaymentsToAcquirePropertyPlantAndEquipment

5000000

CY2010

us-gaap

Insurance Recoveries

InsuranceRecoveries

21000000

CY2010

us-gaap

Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Cash Flows

OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsCashFlows

-1000000

CY2010

us-gaap

Effective Income Tax Rate Reconciliation Prior Year Income Taxes

EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes

0.000

pure

CY2010

us-gaap

Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Tax Portion Attributable To Parent Availableforsale Securities

OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossTaxPortionAttributableToParentAvailableforsaleSecurities

14000000

CY2010

us-gaap

Income Tax Effects Allocated Directly To Equity

IncomeTaxEffectsAllocatedDirectlyToEquity

85000000

CY2010

us-gaap

Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities

UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities

5000000

CY2010

us-gaap

Payments To Acquire Available For Sale Securities

PaymentsToAcquireAvailableForSaleSecurities

9967000000

CY2010

us-gaap

Current Foreign Tax Expense Benefit

CurrentForeignTaxExpenseBenefit

-1000000

CY2010

us-gaap

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

4526442

shares

CY2010

us-gaap

Deferred Foreign Income Tax Expense Benefit

DeferredForeignIncomeTaxExpenseBenefit

18000000

CY2010

us-gaap

Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value

ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue

3.79

CY2010

us-gaap

Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions Additional Credit Losses

OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsAdditionalCreditLosses

18000000

CY2010

us-gaap

Increase Decrease In Accrued Income Taxes Payable

IncreaseDecreaseInAccruedIncomeTaxesPayable

501000000

CY2010

us-gaap

Proceeds From Insurance Premiums Collected

ProceedsFromInsurancePremiumsCollected

533000000

CY2010

us-gaap

Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent

OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent

186000000

CY2010

us-gaap

Gains Losses On Extinguishment Of Debt

GainsLossesOnExtinguishmentOfDebt

60000000

CY2010

us-gaap

Premiums Written Net Financial Guarantee Insurance Contracts

PremiumsWrittenNetFinancialGuaranteeInsuranceContracts

217000000

CY2010

us-gaap

Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax

OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax

10000000

CY2010

us-gaap

Proceeds From Sale Of Property Plant And Equipment

ProceedsFromSaleOfPropertyPlantAndEquipment

3000000

CY2010

us-gaap

Deferred Federal Income Tax Expense Benefit

DeferredFederalIncomeTaxExpenseBenefit

-239000000

CY2010

us-gaap

Net Cash Provided By Used In Operating Activities

NetCashProvidedByUsedInOperatingActivities

-946000000

CY2010

us-gaap

Payments For Proceeds From Hedge Investing Activities

PaymentsForProceedsFromHedgeInvestingActivities

216000000

CY2010

us-gaap

Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax

OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax

-3000000

CY2010

us-gaap

Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Change In Status

OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsChangeInStatus

-4000000

CY2010

us-gaap

Other Comprehensive Income Loss Reclassification Adjustment For Sale Of Securities Included In Net Income Net Of Tax

OtherComprehensiveIncomeLossReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTax

152000000

CY2010

us-gaap

Available For Sale Securities Gross Realized Losses

AvailableForSaleSecuritiesGrossRealizedLosses

30000000

CY2010

us-gaap

Effective Income Tax Rate Reconciliation State And Local Income Taxes

EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes

0.115

pure

CY2010

us-gaap

Repayments Of Notes Payable

RepaymentsOfNotesPayable

1793000000

CY2010

us-gaap

Benefits Losses And Expenses

BenefitsLossesAndExpenses

989000000

CY2010

mbi

Effective Income Tax Rate Reconciliation Uncertain Tax Positions

EffectiveIncomeTaxRateReconciliationUncertainTaxPositions

-0.223

pure

CY2010

mbi

Additions For Credit Loss Impairments Recognized In Prior Periods For Securities That Were Re Impaired With Non Credit Component In Current Period

AdditionsForCreditLossImpairmentsRecognizedInPriorPeriodsForSecuritiesThatWereReImpairedWithNonCreditComponentInCurrentPeriod

1000000

CY2010

mbi

Collateral To From Swap Counterparty From Investing Activities

CollateralToFromSwapCounterpartyFromInvestingActivities

166000000

CY2010

mbi

Consolidated Variable Interest Entities Tax

ConsolidatedVariableInterestEntitiesTax

23000000

CY2010

mbi

Consolidated Variable Interest Entity Net Of Tax

ConsolidatedVariableInterestEntityNetOfTax

-55000000

CY2010

mbi

Credit Losses Recognized In Retained Earnings Related To Adoption Of Accounting Principles

CreditLossesRecognizedInRetainedEarningsRelatedToAdoptionOfAccountingPrinciples

-149000000

CY2010

mbi

Deconsolidated Variable Interest Entities Tax

DeconsolidatedVariableInterestEntitiesTax

2000000

CY2010

mbi

Deconsolidated Variable Interest Entity Net Of Tax

DeconsolidatedVariableInterestEntityNetOfTax

82000000

CY2010

mbi

Effective Income Tax Rate Reconciliation Deferred Tax Inventory Adjustment

EffectiveIncomeTaxRateReconciliationDeferredTaxInventoryAdjustment

-0.136

pure

CY2010

mbi

Effective Income Tax Rate Reconciliation Mark To Market On Warrants

EffectiveIncomeTaxRateReconciliationMarkToMarketOnWarrants

-0.112

pure

CY2010

mbi

Increase Decrease In Insurance Loss Recoverable

IncreaseDecreaseInInsuranceLossRecoverable

769000000

CY2010

mbi

Increase Decrease In Net Gains Losses On Financial Instruments At Fair Value And Foreign Exchange

IncreaseDecreaseInNetGainsLossesOnFinancialInstrumentsAtFairValueAndForeignExchange

430000000

CY2010

mbi

Increase Decrease In Other Net Realized Gains Losses

IncreaseDecreaseInOtherNetRealizedGainsLosses

47000000

CY2010

mbi

Net Other Than Temporary Impairments

NetOtherThanTemporaryImpairments

64000000

CY2010

mbi

Payments For Net Losses And Loss Adjustment Expenses Paid

PaymentsForNetLossesAndLossAdjustmentExpensesPaid

1545000000

CY2010

mbi

Payments For Net Realized Losses On Insured Derivatives Paid

PaymentsForNetRealizedLossesOnInsuredDerivativesPaid

895000000

CY2010

mbi

Payments For Operating And Employee Related Expenses Paid

PaymentsForOperatingAndEmployeeRelatedExpensesPaid

274000000

CY2010

mbi

Payments For Proceeds From Other Investments

PaymentsForProceedsFromOtherInvestments

-53000000

CY2010

mbi

Payments From Drawdowns Of Borrowings Under Guaranteed Investment Agreements

PaymentsFromDrawdownsOfBorrowingsUnderGuaranteedInvestmentAgreements

767000000

CY2010

mbi

Premiums Earned Net Financial Guarantee Insurance Contracts And Insured Derivatives

PremiumsEarnedNetFinancialGuaranteeInsuranceContractsAndInsuredDerivatives

714000000

CY2010

mbi

Premiums Written Financial Guarantee Insurance Contracts Percentage Of Amount Assumed To Net

PremiumsWrittenFinancialGuaranteeInsuranceContractsPercentageOfAmountAssumedToNet

0.03

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CY2010

mbi

Proceeds From Consolidation Of Variable Interest Entity

ProceedsFromConsolidationOfVariableInterestEntity

754000000

CY2010

mbi

Proceeds From Investment Income Received

ProceedsFromInvestmentIncomeReceived

997000000

CY2010

mbi

Proceeds From Issuance Of Borrowings Under Guaranteed Investment Agreements

ProceedsFromIssuanceOfBorrowingsUnderGuaranteedInvestmentAgreements

45000000

CY2010

mbi

Proceeds From Reinsurance And Recoveries

ProceedsFromReinsuranceAndRecoveries

398000000

CY2010

mbi

Realized Gains Losses And Other Settlements On Insured Derivatives

RealizedGainsLossesAndOtherSettlementsOnInsuredDerivatives

607000000

CY2010

mbi

Unvested Restricted Stock And Units That Receive Nonforfeitable Dividends Or Dividend Equivalents

UnvestedRestrictedStockAndUnitsThatReceiveNonforfeitableDividendsOrDividendEquivalents

5325428

shares

CY2010

mbi

Weighted Average Assumption For Measurement Of Current Subordination Levels

WeightedAverageAssumptionForMeasurementOfCurrentSubordinationLevels

0.0450

pure

CY2010

mbi

Weighted Average Assumption For Measurement Of Expected Size Of Losses

WeightedAverageAssumptionForMeasurementOfExpectedSizeOfLosses

0.5220

pure

CY2010

mbi

Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Prices

ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrices

24.3703

CY2010

mbi

Increasedecrease In Net Incomeloss

IncreasedecreaseInNetIncomeloss

22000000

CY2010

mbi

Other Comprehensive Income Unrealized Holding Gain Loss On Securities With No Other Than Temporary Impairments Arising During Period After Reclassification Adjustments Net Of Tax

OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesWithNoOtherThanTemporaryImpairmentsArisingDuringPeriodAfterReclassificationAdjustmentsNetOfTax

286000000

CY2010

mbi

Other Comprehensive Income Unrealized Holding Gain Loss On Securities With Other Than Temporary Impairments Arising During Period After Reclassification Adjustments Net Of Tax

OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesWithOtherThanTemporaryImpairmentsArisingDuringPeriodAfterReclassificationAdjustmentsNetOfTax

-29000000

CY2010

mbi

Weighted Average Assumption Measurement Prepayment Speed

WeightedAverageAssumptionMeasurementPrepaymentSpeed

0.0945

pure

CY2010

mbi

Accounting Standards Update Transition Adjustment

AccountingStandardsUpdateTransitionAdjustment

27000000

CY2010

mbi

Available For Sale Securities Gross Realized Gain Loss Net Excluding Other Than Temporary Impairments

AvailableForSaleSecuritiesGrossRealizedGainLossNetExcludingOtherThanTemporaryImpairments

62000000

CY2010

mbi

Change In Unrealized Gains Loss On Investments

ChangeInUnrealizedGainsLossOnInvestments

-112000000

CY2011

us-gaap

Other Comprehensive Income Foreign Currency Translation Gain Loss Arising During Period Tax

OtherComprehensiveIncomeForeignCurrencyTranslationGainLossArisingDuringPeriodTax

1000000

CY2011

us-gaap

Proceeds From Income Tax Refunds

ProceedsFromIncomeTaxRefunds

74000000

CY2011

us-gaap

Increase Decrease In Premiums Receivable

IncreaseDecreaseInPremiumsReceivable

-209000000

CY2011

us-gaap

Repayments Of Long Term Debt

RepaymentsOfLongTermDebt

65000000

CY2011

us-gaap

Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax

OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax

3000000

CY2011

us-gaap

Increase Decrease In Loss And Loss Adjustment Expense Reserve

IncreaseDecreaseInLossAndLossAdjustmentExpenseReserve

293000000

CY2011

us-gaap

Profit Loss

ProfitLoss

-1319000000

CY2011

us-gaap

Net Cash Provided By Used In Investing Activities

NetCashProvidedByUsedInInvestingActivities

4007000000

CY2011

us-gaap

Repayments Of Medium Term Notes

RepaymentsOfMediumTermNotes

137000000

CY2011

us-gaap

Minority Interest Change In Redemption Value

MinorityInterestChangeInRedemptionValue

-2000000

CY2011

us-gaap

Weighted Average Number Of Shares Outstanding Basic

WeightedAverageNumberOfSharesOutstandingBasic

197019968

shares

CY2011

us-gaap

Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period

ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod

225874

shares

CY2011

us-gaap

Payments For Proceeds From Short Term Investments

PaymentsForProceedsFromShortTermInvestments

-680000000

CY2011

us-gaap

Proceeds From Payments For In Securities Sold Under Agreements To Repurchase

ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase

-184000000

CY2011

us-gaap

Increase Decrease In Unearned Premiums

IncreaseDecreaseInUnearnedPremiums

-624000000

CY2011

us-gaap

Effective Income Tax Rate Continuing Operations

EffectiveIncomeTaxRateContinuingOperations

0.411

pure

CY2011

us-gaap

Treasury Stock Value Acquired Cost Method

TreasuryStockValueAcquiredCostMethod

50000000

CY2011

us-gaap

Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments

IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

-2239000000

CY2011

us-gaap

Payments To Minority Shareholders

PaymentsToMinorityShareholders

-9000000

CY2011

us-gaap

Other Comprehensive Income Loss Reclassification Adjustment For Write Down Of Securities Included In Net Income Tax

OtherComprehensiveIncomeLossReclassificationAdjustmentForWriteDownOfSecuritiesIncludedInNetIncomeTax

12000000

CY2011

us-gaap

Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance

EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance

0.062

pure

CY2011

us-gaap

Income Tax Expense Benefit Intraperiod Tax Allocation

IncomeTaxExpenseBenefitIntraperiodTaxAllocation

-792000000

CY2011

us-gaap

Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions No Previous Impairment

OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsNoPreviousImpairment

63000000

CY2011

us-gaap

Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax

OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax

2000000

CY2011

us-gaap

Other Comprehensive Income Loss Reclassification Adjustment On Derivatives Included In Net Income Tax

OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeTax

5000000

CY2011

us-gaap

Effective Income Tax Rate Reconciliation Other Adjustments

EffectiveIncomeTaxRateReconciliationOtherAdjustments

-0.008

pure

CY2011

us-gaap

Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities

AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities

-1308000000

CY2011

us-gaap

Financial Guarantee Insurance Contracts Premium Received Over Contract Period Premium Receivable Weighted Average Risk Free Discount Rate

FinancialGuaranteeInsuranceContractsPremiumReceivedOverContractPeriodPremiumReceivableWeightedAverageRiskFreeDiscountRate

0.028

pure

CY2011

us-gaap

Other Comprehensive Income Loss Reclassification Adjustment On Derivatives Included In Net Income Net Of Tax

OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeNetOfTax

10000000

CY2011

us-gaap

Increase Decrease In Deferred Policy Acquisition Costs

IncreaseDecreaseInDeferredPolicyAcquisitionCosts

-61000000

CY2011

us-gaap

Cash And Cash Equivalents Period Increase Decrease

CashAndCashEquivalentsPeriodIncreaseDecrease

-497000000

CY2011

us-gaap

Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities

ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities

196000000

CY2011

us-gaap

Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost

IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost

4000000

CY2011

us-gaap

Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential

EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential

0.001

pure

CY2011

us-gaap

Current State And Local Tax Expense Benefit

CurrentStateAndLocalTaxExpenseBenefit

1000000

CY2011

us-gaap

Fees And Commissions Other

FeesAndCommissionsOther

3000000

CY2011

us-gaap

Insured Financial Obligations With Credit Deterioration Remaining Weighted Average Contract Period

InsuredFinancialObligationsWithCreditDeteriorationRemainingWeightedAverageContractPeriod

P8Y9M18D

CY2011

us-gaap

Proceeds From Sale Of Available For Sale Securities

ProceedsFromSaleOfAvailableForSaleSecurities

11321000000

CY2011

us-gaap

Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Securities Sold

OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsSecuritiesSold

15000000

CY2011

us-gaap

Other Noncash Income Expense

OtherNoncashIncomeExpense

-408000000

CY2011

us-gaap

Financial Guarantee Insurance Contracts Claim Liability Weighted Average Risk Free Discount Rate

FinancialGuaranteeInsuranceContractsClaimLiabilityWeightedAverageRiskFreeDiscountRate

0.0153

pure

CY2011

us-gaap

Proceeds From Sale And Collection Of Loans Receivable

ProceedsFromSaleAndCollectionOfLoansReceivable

291000000

CY2011

us-gaap

Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions

UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions

21000000

CY2011

us-gaap

Interest Paid Net

InterestPaidNet

479000000

CY2011

us-gaap

Income Tax Expense Benefit

IncomeTaxExpenseBenefit

-920000000

CY2011

us-gaap

Stock Issued During Period Value Share Based Compensation

StockIssuedDuringPeriodValueShareBasedCompensation

7000000

CY2011

us-gaap

Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax

OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax

209000000

CY2011

us-gaap

Unrealized Gain Loss On Derivatives

UnrealizedGainLossOnDerivatives

-441000000

CY2011

us-gaap

Proceeds From Issuance Of Long Term Debt And Capital Securities Net

ProceedsFromIssuanceOfLongTermDebtAndCapitalSecuritiesNet

105000000

CY2011

us-gaap

Assumed Premiums Written Financial Guarantee Insurance Contracts

AssumedPremiumsWrittenFinancialGuaranteeInsuranceContracts

-2000000

CY2011

us-gaap

Proceeds From Stock Plans

ProceedsFromStockPlans

-2000000

CY2011

us-gaap

Earnings Per Share Basic

EarningsPerShareBasic

-6.69

CY2011

us-gaap

Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax

OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax

-33000000

CY2011

us-gaap

Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Tax Portion Attributable To Parent

OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossTaxPortionAttributableToParent

-3000000

CY2011

us-gaap

Deferred Income Tax Expense Benefit

DeferredIncomeTaxExpenseBenefit

-935000000

CY2011

us-gaap

Consolidation Less Than Wholly Owned Subsidiary Parent Ownership Interest Changes Net

ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesNet

11000000

CY2011

us-gaap

Net Income Loss

NetIncomeLoss

-1319000000

CY2011

us-gaap

Direct Premiums Written Financial Guarantee Insurance Contracts

DirectPremiumsWrittenFinancialGuaranteeInsuranceContracts

-5000000

CY2011

us-gaap

Financial Guarantee Insurance Contracts Premium Received Over Contract Period Premium Receivable Weighted Average Collection Period1

FinancialGuaranteeInsuranceContractsPremiumReceivedOverContractPeriodPremiumReceivableWeightedAverageCollectionPeriod1

P9Y1M17D

CY2011

us-gaap

Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation

AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation

4000000

CY2011

us-gaap

Earnings Per Share Diluted

EarningsPerShareDiluted

-6.69

CY2011

us-gaap

Ceded Premiums Written Financial Guarantee Insurance Contracts

CededPremiumsWrittenFinancialGuaranteeInsuranceContracts

3000000

CY2011

us-gaap

Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax

OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax

5000000

CY2011

us-gaap

Payments For Repurchase Of Common Stock

PaymentsForRepurchaseOfCommonStock

50000000

CY2011

us-gaap

Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax

OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax

-1000000

CY2011

us-gaap

Other Comprehensive Income Loss Reclassification Adjustment For Writedown Of Securities Included In Net Income Net Of Tax

OtherComprehensiveIncomeLossReclassificationAdjustmentForWritedownOfSecuritiesIncludedInNetIncomeNetOfTax

22000000

CY2011

us-gaap

Weighted Average Number Of Diluted Shares Outstanding

WeightedAverageNumberOfDilutedSharesOutstanding

197019968

shares

CY2011

us-gaap

Net Cash Provided By Used In Financing Activities

NetCashProvidedByUsedInFinancingActivities

-1877000000

CY2011

us-gaap

Other Comprehensive Income Loss Reclassification Adjustment For Sale Of Securities Included In Net Income Tax

OtherComprehensiveIncomeLossReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeTax

17000000

CY2011

us-gaap

Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent Availableforsale Securities

OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAvailableforsaleSecurities

5000000

CY2011

us-gaap

Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate

EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate

0.350

pure

CY2011

us-gaap

Available For Sale Securities Gross Realized Gains

AvailableForSaleSecuritiesGrossRealizedGains

239000000

CY2011

us-gaap

Effective Income Tax Rate Reconciliation Tax Exempt Income

EffectiveIncomeTaxRateReconciliationTaxExemptIncome

0.015

pure

CY2011

us-gaap

Comprehensive Income Net Of Tax

ComprehensiveIncomeNetOfTax

-1089000000

CY2011

us-gaap

Current Federal Tax Expense Benefit

CurrentFederalTaxExpenseBenefit

-1000000

CY2011

us-gaap

Deconsolidation Gain Or Loss Amount

DeconsolidationGainOrLossAmount

271000000

CY2011

us-gaap

Revenues

-1557000000

CY2011

us-gaap

Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period

ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod

235050

shares

CY2011

us-gaap

Undistributed Earnings

UndistributedEarnings

15000000

CY2011

us-gaap

Payments To Acquire Property Plant And Equipment

PaymentsToAcquirePropertyPlantAndEquipment

5000000

CY2011

us-gaap

Insurance Recoveries

InsuranceRecoveries

10000000

CY2011

us-gaap

Effective Income Tax Rate Reconciliation Prior Year Income Taxes

EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes

0.000

pure

CY2011

us-gaap

Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Tax Portion Attributable To Parent Availableforsale Securities

OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossTaxPortionAttributableToParentAvailableforsaleSecurities

3000000

CY2011

us-gaap

Income Tax Effects Allocated Directly To Equity

IncomeTaxEffectsAllocatedDirectlyToEquity

128000000

CY2011

mbi

Payments For Operating And Employee Related Expenses Paid

PaymentsForOperatingAndEmployeeRelatedExpensesPaid

312000000

CY2011

us-gaap

Payments To Acquire Available For Sale Securities

PaymentsToAcquireAvailableForSaleSecurities

7744000000

CY2011

us-gaap

Current Foreign Tax Expense Benefit

CurrentForeignTaxExpenseBenefit

15000000

CY2011

us-gaap

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

3797548

shares

CY2011

us-gaap

Deferred Foreign Income Tax Expense Benefit

DeferredForeignIncomeTaxExpenseBenefit

-16000000

CY2011

us-gaap

Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions Additional Credit Losses

OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsAdditionalCreditLosses

31000000

CY2011

us-gaap

Increase Decrease In Accrued Income Taxes Payable

IncreaseDecreaseInAccruedIncomeTaxesPayable

86000000

CY2011

us-gaap

Proceeds From Insurance Premiums Collected

ProceedsFromInsurancePremiumsCollected

397000000

CY2011

us-gaap

Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent

OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent

230000000

CY2011

us-gaap

Gains Losses On Extinguishment Of Debt

GainsLossesOnExtinguishmentOfDebt

26000000

CY2011

us-gaap

Premiums Written Net Financial Guarantee Insurance Contracts

PremiumsWrittenNetFinancialGuaranteeInsuranceContracts

-10000000

CY2011

us-gaap

Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax

OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax

96000000

CY2011

us-gaap

Deferred Federal Income Tax Expense Benefit

DeferredFederalIncomeTaxExpenseBenefit

-919000000

CY2011

us-gaap

Net Cash Provided By Used In Operating Activities

NetCashProvidedByUsedInOperatingActivities

-2627000000

CY2011

us-gaap

Payments For Proceeds From Hedge Investing Activities

PaymentsForProceedsFromHedgeInvestingActivities

373000000

CY2011

us-gaap

Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax

OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax

-5000000

CY2011

us-gaap

Other Comprehensive Income Loss Reclassification Adjustment For Sale Of Securities Included In Net Income Net Of Tax

OtherComprehensiveIncomeLossReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTax

32000000

CY2011

us-gaap

Available For Sale Securities Gross Realized Losses

AvailableForSaleSecuritiesGrossRealizedLosses

104000000

CY2011

us-gaap

Effective Income Tax Rate Reconciliation State And Local Income Taxes

EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes

0.000

pure

CY2011

us-gaap

Repayments Of Notes Payable

RepaymentsOfNotesPayable

1100000000

CY2011

us-gaap

Benefits Losses And Expenses

BenefitsLossesAndExpenses

682000000

CY2011

mbi

Effective Income Tax Rate Reconciliation Uncertain Tax Positions

EffectiveIncomeTaxRateReconciliationUncertainTaxPositions

-0.010

pure

CY2011

mbi

Aggregate Amount Insurance In Force Outstanding Ceded To Reinsurers

AggregateAmountInsuranceInForceOutstandingCededToReinsurers

7500000000

CY2011

mbi

Effective Income Tax Rate Reconciliation Deferred Tax Inventory Adjustment

EffectiveIncomeTaxRateReconciliationDeferredTaxInventoryAdjustment

-0.002

pure

CY2011

mbi

Effective Income Tax Rate Reconciliation Mark To Market On Warrants

EffectiveIncomeTaxRateReconciliationMarkToMarketOnWarrants

0.003

pure

CY2011

mbi

Increase Decrease In Insurance Loss Recoverable

IncreaseDecreaseInInsuranceLossRecoverable

514000000

CY2011

mbi

Increase Decrease In Net Gains Losses On Financial Instruments At Fair Value And Foreign Exchange

IncreaseDecreaseInNetGainsLossesOnFinancialInstrumentsAtFairValueAndForeignExchange

-40000000

CY2011

mbi

Increase Decrease In Other Net Realized Gains Losses

IncreaseDecreaseInOtherNetRealizedGainsLosses

-262000000

CY2011

mbi

Net Other Than Temporary Impairments

NetOtherThanTemporaryImpairments

101000000

CY2011

mbi

Payments For Net Losses And Loss Adjustment Expenses Paid

PaymentsForNetLossesAndLossAdjustmentExpensesPaid

1029000000

CY2011

mbi

Payments For Net Realized Losses On Insured Derivatives Paid

PaymentsForNetRealizedLossesOnInsuredDerivativesPaid

2476000000

CY2011

mbi

Payments For Proceeds From Other Investments

PaymentsForProceedsFromOtherInvestments

-73000000

CY2011

mbi

Payments From Drawdowns Of Borrowings Under Guaranteed Investment Agreements

PaymentsFromDrawdownsOfBorrowingsUnderGuaranteedInvestmentAgreements

524000000

CY2011

mbi

Premiums Earned Net Financial Guarantee Insurance Contracts And Insured Derivatives

PremiumsEarnedNetFinancialGuaranteeInsuranceContractsAndInsuredDerivatives

708000000

CY2011

mbi

Premiums Written Financial Guarantee Insurance Contracts Percentage Of Amount Assumed To Net

PremiumsWrittenFinancialGuaranteeInsuranceContractsPercentageOfAmountAssumedToNet

0.20

pure

CY2011

mbi

Proceeds From Consolidation Of Variable Interest Entity

ProceedsFromConsolidationOfVariableInterestEntity

-432000000

CY2011

mbi

Proceeds From Investment Income Received

ProceedsFromInvestmentIncomeReceived

898000000

CY2011

mbi

Proceeds From Issuance Of Borrowings Under Guaranteed Investment Agreements

ProceedsFromIssuanceOfBorrowingsUnderGuaranteedInvestmentAgreements

71000000

CY2011

mbi

Proceeds From Reinsurance And Recoveries

ProceedsFromReinsuranceAndRecoveries

300000000

CY2011

mbi

Transfers Into And Out Of Level One

TransfersIntoAndOutOfLevelOne

0

CY2011

mbi

Transfers Into Level Three

TransfersIntoLevelThree

456000000

CY2011

mbi

Transfers Into Level Two

TransfersIntoLevelTwo

391000000

CY2011

mbi

Transfers Out Of Level Three

TransfersOutOfLevelThree

391000000

CY2011

mbi

Transfers Out Of Level Two

TransfersOutOfLevelTwo

456000000

CY2011

mbi

Unvested Restricted Stock And Units That Receive Nonforfeitable Dividends Or Dividend Equivalents

UnvestedRestrictedStockAndUnitsThatReceiveNonforfeitableDividendsOrDividendEquivalents

5080742

shares

CY2011

mbi

Weighted Average Assumption For Measurement Of Current Subordination Levels

WeightedAverageAssumptionForMeasurementOfCurrentSubordinationLevels

0.0153

pure

CY2011

mbi

Weighted Average Assumption For Measurement Of Expected Size Of Losses

WeightedAverageAssumptionForMeasurementOfExpectedSizeOfLosses

0.5540

pure

CY2011

mbi

Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Prices

ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrices

46.0164

CY2011

mbi

Increasedecrease In Net Incomeloss

IncreasedecreaseInNetIncomeloss

1000000

CY2011

mbi

Other Comprehensive Income Unrealized Holding Gain Loss On Securities With No Other Than Temporary Impairments Arising During Period After Reclassification Adjustments Net Of Tax

OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesWithNoOtherThanTemporaryImpairmentsArisingDuringPeriodAfterReclassificationAdjustmentsNetOfTax

241000000

CY2011

mbi

Other Comprehensive Income Unrealized Holding Gain Loss On Securities With Other Than Temporary Impairments Arising During Period After Reclassification Adjustments Net Of Tax

OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesWithOtherThanTemporaryImpairmentsArisingDuringPeriodAfterReclassificationAdjustmentsNetOfTax

-17000000

CY2011

mbi

Weighted Average Assumption Measurement Prepayment Speed

WeightedAverageAssumptionMeasurementPrepaymentSpeed

0.1267

pure

CY2011

mbi

Approximate Percentage Of Level Three Assets At Fair Value In Assets Measured At Fair Value

ApproximatePercentageOfLevelThreeAssetsAtFairValueInAssetsMeasuredAtFairValue

0.29

pure

CY2011

mbi

Approximate Percentage Of Level Three Liabilities At Fair Value In Liabilities Measured At Fair Value

ApproximatePercentageOfLevelThreeLiabilitiesAtFairValueInLiabilitiesMeasuredAtFairValue

0.77

pure

CY2011

mbi

Available For Sale Securities Gross Realized Gain Loss Net Excluding Other Than Temporary Impairments

AvailableForSaleSecuritiesGrossRealizedGainLossNetExcludingOtherThanTemporaryImpairments

135000000

CY2011

mbi

Change In Unrealized Gains Loss On Investments

ChangeInUnrealizedGainsLossOnInvestments

-119000000

CY2012

dei

Document Fiscal Period Focus

DocumentFiscalPeriodFocus

FY

CY2012

dei

Entity Voluntary Filers

EntityVoluntaryFilers

No

CY2012

dei

Document Fiscal Year Focus

DocumentFiscalYearFocus

2012

CY2012

dei

Document Type

DocumentType

10-K

CY2012

dei

Document Period End Date

DocumentPeriodEndDate

2012-12-31

CY2012

dei

Entity Central Index Key

EntityCentralIndexKey

0000814585

CY2012

dei

Entity Well Known Seasoned Issuer

EntityWellKnownSeasonedIssuer

Yes

CY2012

dei

Current Fiscal Year End Date

CurrentFiscalYearEndDate

--12-31

CY2012

dei

Trading Symbol

TradingSymbol

MBI

CY2012

dei

Entity Registrant Name

EntityRegistrantName

MBIA INC

CY2012

dei

Entity Current Reporting Status

EntityCurrentReportingStatus

Yes

CY2012

dei

Amendment Flag

AmendmentFlag

false

CY2012

dei

Entity Filer Category

EntityFilerCategory

Large Accelerated Filer

CY2012

us-gaap

Other Comprehensive Income Foreign Currency Translation Gain Loss Arising During Period Tax

OtherComprehensiveIncomeForeignCurrencyTranslationGainLossArisingDuringPeriodTax

2000000

CY2012

us-gaap

Increase Decrease In Deferred Income Taxes

IncreaseDecreaseInDeferredIncomeTaxes

61000000

CY2012

us-gaap

Proceeds From Income Tax Refunds

ProceedsFromIncomeTaxRefunds

-6000000

CY2012

us-gaap

Increase Decrease In Premiums Receivable

IncreaseDecreaseInPremiumsReceivable

-152000000

CY2012

us-gaap

Repayments Of Long Term Debt

RepaymentsOfLongTermDebt

540000000

CY2012

us-gaap

Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax

OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax

11000000

CY2012

us-gaap

Increase Decrease In Loss And Loss Adjustment Expense Reserve

IncreaseDecreaseInLossAndLossAdjustmentExpenseReserve

-17000000

CY2012

us-gaap

Profit Loss

ProfitLoss

1234000000

CY2012

us-gaap

Increase Decrease In Income Taxes Receivable

IncreaseDecreaseInIncomeTaxesReceivable

6000000

CY2012

us-gaap

Net Cash Provided By Used In Investing Activities

NetCashProvidedByUsedInInvestingActivities

4195000000

CY2012

us-gaap

Repayments Of Medium Term Notes

RepaymentsOfMediumTermNotes

102000000

CY2012

us-gaap

Weighted Average Number Of Shares Outstanding Basic

WeightedAverageNumberOfSharesOutstandingBasic

193842435

shares

CY2012

us-gaap

Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period

ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod

461805

shares

CY2012

us-gaap

Payments For Proceeds From Short Term Investments

PaymentsForProceedsFromShortTermInvestments

-1012000000

CY2012

us-gaap

Premiums Receivable Note

PremiumsReceivableNote

<div> Note 5: Insurance Premiums The Company recognizes and measures premiums related to financial guarantee (non-derivative) insurance and reinsurance contracts in accordance with the accounting principles for financial guarantee insurance contracts. As of December 31, 2012 and 2011, the Company reported premiums receivable of $1.2 billion and $1.4 billion, respectively, primarily related to installment policies for which premiums will be collected over the estimated term of the contracts. Premiums receivable for an installment policy is initially measured at the present value of premiums expected to be collected over the expected period or contract period of the policy using a risk-free discount rate. Premiums receivable for policies that use the expected period of risk due to expected prepayments are adjusted in subsequent measurement periods when prepayment assumptions change using the risk-free discount rate as of the remeasurement date. As of December 31, 2012 and 2011, the weighted average risk-free rate used to discount future installment premiums was 2.6% and 2.8%, respectively, and the weighted average expected collection term of the premiums receivable was 9.13 years as of December 31, 2012 and 2011. The Company evaluates whether any premiums receivable are uncollectible at each balance sheet date. If the Company determines that premiums are uncollectible, it records a write-off of such amounts in current earnings. The majority of the Company’s premiums receivable consists of the present values of future installment premiums that are not yet billed or due primarily from structured finance transactions. Given that premiums due to MBIA typically have priority over most other payment obligations of structured finance transactions, the Company determined that the amount of uncollectible premiums as of December 31, 2012 and 2011 was insignificant. As of December 31, 2012 and 2011, the Company reported reinsurance premiums payable of $59 million and $64 million, respectively, which represents the portion of the Company’s premiums receivable that is due to reinsurers. The reinsurance premiums payable is accreted and paid to reinsurers as premiums due to MBIA are accreted and collected. The following tables present a roll forward of the Company’s premiums receivable for the years ended December 31, 2012 and 2011:   <table style="BORDER-COLLAPSE: collapse" border="0" cellspacing="0" cellpadding="0" width="100%" align="center"> <tr> <td></td> <td></td> <td></td> <td valign="bottom" width="9%"></td> <td></td> <td></td> <td></td> <td valign="bottom" width="9%"></td> <td></td> <td></td> <td></td> <td valign="bottom" width="9%"></td> <td></td> <td></td> <td></td> <td valign="bottom" width="9%"></td> <td></td> <td></td> <td></td> <td valign="bottom" width="9%"></td> <td></td> <td></td> <td></td> <td valign="bottom" width="9%"></td> <td></td> <td></td> <td></td> <td valign="bottom" width="9%"></td> <td></td> <td></td> <td></td> </tr> <tr> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom" colspan="2" nowrap="nowrap">In millions</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom" colspan="2"> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom" colspan="2"> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom" colspan="10" align="center">Adjustments</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom" colspan="2"> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom" colspan="2"> </td> <td valign="bottom"> </td> </tr> <tr> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom" colspan="2" nowrap="nowrap" align="center">Premiums Receivable as of December 31, 2011</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom" colspan="2" align="center">Premium Payments Received</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom" colspan="2" align="center">Premiums from New Business Written</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom" colspan="2" align="center">Changes in Expected Term of Policies</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom" colspan="2" align="center">Accretion of Premiums Receivable Discount</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom" colspan="2" align="center">Other (1)</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom" colspan="2" align="center">Premiums Receivable as of December 31, 2012</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom" colspan="2" align="center">Reinsurance Premiums Payable as of December 31, 2012</td> <td valign="bottom"> </td> </tr> <tr bgcolor="#CCEEFF"> <td valign="top">$</td> <td valign="top" align="right">1,360</td> <td valign="top" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">(182)</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">5</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">(57)</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">32</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">70</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">1,228</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">59</td> <td valign="bottom" nowrap="nowrap"> </td> </tr> <tr style="FONT-SIZE: 1px"> <td valign="bottom">   </td> <td valign="bottom">   </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">   </td> <td valign="bottom">   </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">   </td> <td valign="bottom">   </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">   </td> <td valign="bottom">   </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">   </td> <td valign="bottom">   </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">   </td> <td valign="bottom">   </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">   </td> <td valign="bottom">   </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">   </td> <td valign="bottom">   </td> <td> </td> </tr> </table>   (1)—Primarily consists of unrealized gains (losses) due to foreign currency exchange rates.   <table style="BORDER-COLLAPSE: collapse" border="0" cellspacing="0" cellpadding="0" width="100%" align="center"> <tr> <td></td> <td></td> <td></td> <td valign="bottom" width="6%"></td> <td></td> <td></td> <td></td> <td valign="bottom" width="6%"></td> <td></td> <td></td> <td></td> <td valign="bottom" width="6%"></td> <td></td> <td></td> <td></td> <td valign="bottom" width="6%"></td> <td></td> <td></td> <td></td> <td valign="bottom" width="6%"></td> <td></td> <td></td> <td></td> <td valign="bottom" width="6%"></td> <td></td> <td></td> <td></td> <td valign="bottom" width="6%"></td> <td></td> <td></td> <td></td> </tr> <tr> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom" colspan="2" nowrap="nowrap">In millions</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom" colspan="2"> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom" colspan="2"> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom" colspan="10" align="center">Adjustments</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom" colspan="2"> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom" colspan="2"> </td> <td valign="bottom"> </td> </tr> <tr> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom" colspan="2" nowrap="nowrap" align="center">Premiums Receivable as of December 31, 2010</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom" colspan="2" align="center">Premium Payments     Received    </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom" colspan="2" align="center">Premiums from New Business     Written    </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom" colspan="2" align="center">Changes in Expected Term of     Policies    </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom" colspan="2" align="center">Accretion of Premiums Receivable     Discount    </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom" colspan="2" align="center">Other (1)</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom" colspan="2" align="center">Premiums Receivable as of December 31, 2011</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom" colspan="2" align="center">Reinsurance Premiums Payable as of December 31, 2011</td> <td valign="bottom"> </td> </tr> <tr bgcolor="#CCEEFF"> <td valign="top">$</td> <td valign="top" align="right">1,589</td> <td valign="top" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">(212)</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">        —</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">(76)</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">40</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">        19</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">1,360</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">                64</td> <td valign="bottom" nowrap="nowrap"> </td> </tr> <tr style="FONT-SIZE: 1px"> <td valign="bottom">   </td> <td valign="bottom">   </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">   </td> <td valign="bottom">   </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">   </td> <td valign="bottom">   </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">   </td> <td valign="bottom">   </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">   </td> <td valign="bottom">   </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">   </td> <td valign="bottom">   </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">   </td> <td valign="bottom">   </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">   </td> <td valign="bottom">   </td> <td> </td> </tr> </table>   (1)—Primarily consists of unrealized gains (losses) due to foreign currency exchange rates.   The following table presents the undiscounted future amount of premiums expected to be collected and the period in which those collections are expected to occur:   <table style="BORDER-COLLAPSE: collapse" border="0" cellspacing="0" cellpadding="0" width="68%" align="center"> <tr> <td width="82%"></td> <td valign="bottom" width="12%"></td> <td></td> <td></td> <td></td> </tr> <tr> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom" nowrap="nowrap"> In millions </td> <td valign="bottom">  </td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom" colspan="2" align="center">Expected Collection of Premiums</td> <td valign="bottom"> </td> </tr> <tr bgcolor="#CCEEFF"> <td valign="top"> Three months ended: </td> <td valign="bottom">  </td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom"></td> </tr> <tr> <td valign="top"> March 31, 2013 </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">30</td> <td valign="bottom" nowrap="nowrap"> </td> </tr> <tr bgcolor="#CCEEFF"> <td valign="top"> June 30, 2013 </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">43</td> <td valign="bottom" nowrap="nowrap"> </td> </tr> <tr> <td valign="top"> September 30, 2013 </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">30</td> <td valign="bottom" nowrap="nowrap"> </td> </tr> <tr bgcolor="#CCEEFF"> <td valign="top"> December 31, 2013 </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">36</td> <td valign="bottom" nowrap="nowrap"> </td> </tr> <tr> <td height="8"></td> <td height="8" colspan="4"></td> </tr> <tr> <td valign="top"> Twelve months ended: </td> <td valign="bottom">  </td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom"></td> </tr> <tr bgcolor="#CCEEFF"> <td valign="top"> December 31, 2014 </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">125</td> <td valign="bottom" nowrap="nowrap"> </td> </tr> <tr> <td valign="top"> December 31, 2015 </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">117</td> <td valign="bottom" nowrap="nowrap"> </td> </tr> <tr bgcolor="#CCEEFF"> <td valign="top"> December 31, 2016 </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">109</td> <td valign="bottom" nowrap="nowrap"> </td> </tr> <tr> <td valign="top"> December 31, 2017 </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">99</td> <td valign="bottom" nowrap="nowrap"> </td> </tr> <tr> <td height="8"></td> <td height="8" colspan="4"></td> </tr> <tr bgcolor="#CCEEFF"> <td valign="top"> Five years ended: </td> <td valign="bottom">  </td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom"></td> </tr> <tr> <td valign="top"> December 31, 2022 </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">378</td> <td valign="bottom" nowrap="nowrap"> </td> </tr> <tr bgcolor="#CCEEFF"> <td valign="top"> December 31, 2027 </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">264</td> <td valign="bottom" nowrap="nowrap"> </td> </tr> <tr> <td valign="top"> December 31, 2032 and thereafter </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">303</td> <td valign="bottom" nowrap="nowrap"> </td> </tr> <tr style="FONT-SIZE: 1px"> <td valign="bottom"></td> <td valign="bottom">  </td> <td valign="bottom">   </td> <td valign="bottom">   </td> <td> </td> </tr> <tr bgcolor="#CCEEFF"> <td valign="top"> Total </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">1,534</td> <td valign="bottom" nowrap="nowrap"> </td> </tr> <tr style="FONT-SIZE: 1px"> <td valign="bottom"></td> <td valign="bottom">  </td> <td valign="bottom">   </td> <td valign="bottom">   </td> <td> </td> </tr> </table> The following table presents the unearned premium revenue balance and future expected premium earnings as of and for the periods presented:   <table style="BORDER-COLLAPSE: collapse" border="0" cellspacing="0" cellpadding="0" width="92%" align="center"> <tr> <td width="42%"></td> <td valign="bottom" width="7%"></td> <td></td> <td></td> <td></td> <td valign="bottom" width="7%"></td> <td></td> <td></td> <td></td> <td valign="bottom" width="7%"></td> <td></td> <td></td> <td></td> <td valign="bottom" width="7%"></td> <td></td> <td></td> <td></td> <td valign="bottom" width="7%"></td> <td></td> <td></td> <td></td> </tr> <tr> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom" colspan="2"> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom" colspan="6" align="center">Expected Future Premium Earnings</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom" colspan="2"> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom" colspan="2"> </td> <td valign="bottom"> </td> </tr> <tr> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom" nowrap="nowrap"> In millions </td> <td valign="bottom">  </td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom" colspan="2" align="center">Unearned Premium Revenue</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom" colspan="2" align="center">Upfront</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom" colspan="2" align="center">Installments</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom" colspan="2" align="center">Accretion</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="BORDER-BOTTOM: #000000 1px solid" valign="bottom" colspan="2" align="center">Total Expected Future Premium Earnings</td> <td valign="bottom"> </td> </tr> <tr bgcolor="#CCEEFF"> <td valign="top"> December 31, 2012 </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">2,938</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom">  </td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">.</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom"></td> </tr> <tr> <td height="8"></td> <td height="8" colspan="4"></td> <td height="8" colspan="4"></td> <td height="8" colspan="4"></td> <td height="8" colspan="4"></td> <td height="8" colspan="4"></td> </tr> <tr> <td valign="top"> Three months ended: </td> <td valign="bottom">  </td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom">  </td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom">  </td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom">  </td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom">  </td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom"></td> </tr> <tr bgcolor="#CCEEFF"> <td valign="top"> March 31, 2013 </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">2,860</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">46</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">32</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">7</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">85</td> <td valign="bottom" nowrap="nowrap"> </td> </tr> <tr> <td valign="top"> June 30, 2013 </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">2,783</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">46</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">31</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">7</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">84</td> <td valign="bottom" nowrap="nowrap"> </td> </tr> <tr bgcolor="#CCEEFF"> <td valign="top"> September 30, 2013 </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">2,709</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">44</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">30</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">7</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">81</td> <td valign="bottom" nowrap="nowrap"> </td> </tr> <tr> <td valign="top"> December 31, 2013 </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">2,637</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">42</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">30</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">7</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">79</td> <td valign="bottom" nowrap="nowrap"> </td> </tr> <tr> <td height="8"></td> <td height="8" colspan="4"></td> <td height="8" colspan="4"></td> <td height="8" colspan="4"></td> <td height="8" colspan="4"></td> <td height="8" colspan="4"></td> </tr> <tr bgcolor="#CCEEFF"> <td valign="top"> Twelve months ended: </td> <td valign="bottom">  </td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom">  </td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom">  </td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom">  </td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom">  </td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom"></td> </tr> <tr> <td valign="top"> December 31, 2014 </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">2,368</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">159</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">110</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">27</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">296</td> <td valign="bottom" nowrap="nowrap"> </td> </tr> <tr bgcolor="#CCEEFF"> <td valign="top"> December 31, 2015 </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">2,123</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">143</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">102</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">25</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">270</td> <td valign="bottom" nowrap="nowrap"> </td> </tr> <tr> <td valign="top"> December 31, 2016 </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">1,898</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">130</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">95</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">23</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">248</td> <td valign="bottom" nowrap="nowrap"> </td> </tr> <tr bgcolor="#CCEEFF"> <td valign="top"> December 31, 2017 </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">1,693</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">120</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">85</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">21</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">226</td> <td valign="bottom" nowrap="nowrap"> </td> </tr> <tr> <td height="8"></td> <td height="8" colspan="4"></td> <td height="8" colspan="4"></td> <td height="8" colspan="4"></td> <td height="8" colspan="4"></td> <td height="8" colspan="4"></td> </tr> <tr> <td valign="top"> Five years ended: </td> <td valign="bottom">  </td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom">  </td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom">  </td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom">  </td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom">  </td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom"></td> </tr> <tr bgcolor="#CCEEFF"> <td valign="top"> December 31, 2022 </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">915</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">456</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">322</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">83</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">861</td> <td valign="bottom" nowrap="nowrap"> </td> </tr> <tr> <td valign="top"> December 31, 2027 </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">442</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">268</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">205</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">50</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">523</td> <td valign="bottom" nowrap="nowrap"> </td> </tr> <tr bgcolor="#CCEEFF"> <td valign="top"> December 31, 2032 and thereafter </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">—</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">234</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">208</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">51</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">493</td> <td valign="bottom" nowrap="nowrap"> </td> </tr> <tr style="FONT-SIZE: 1px"> <td valign="bottom"></td> <td valign="bottom">  </td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom">  </td> <td valign="bottom">   </td> <td valign="bottom">   </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">   </td> <td valign="bottom">   </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">   </td> <td valign="bottom">   </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">   </td> <td valign="bottom">   </td> <td> </td> </tr> <tr> <td valign="top"> Total </td> <td valign="bottom">  </td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">1,688</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">1,250</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">308</td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">3,246</td> <td valign="bottom" nowrap="nowrap"> </td> </tr> <tr style="FONT-SIZE: 1px"> <td valign="bottom"></td> <td valign="bottom">  </td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom"></td> <td valign="bottom">  </td> <td valign="bottom">   </td> <td valign="bottom">   </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">   </td> <td valign="bottom">   </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">   </td> <td valign="bottom">   </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">   </td> <td valign="bottom">   </td> <td> </td> </tr> </table> </div>

CY2012

us-gaap

Proceeds From Payments For In Securities Sold Under Agreements To Repurchase

ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase

-287000000

CY2012

us-gaap

Increase Decrease In Unearned Premiums

IncreaseDecreaseInUnearnedPremiums

-600000000

CY2012

us-gaap

Effective Income Tax Rate Continuing Operations

EffectiveIncomeTaxRateContinuingOperations

0.228

pure

CY2012

us-gaap

Debt Instrument Convertible Conversion Ratio

DebtInstrumentConvertibleConversionRatio

1.0

pure

CY2012

us-gaap

Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments

IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

1598000000

CY2012

us-gaap

Payments To Minority Shareholders

PaymentsToMinorityShareholders

2000000

CY2012

us-gaap

Policyholder Benefits And Claims Incurred Net

PolicyholderBenefitsAndClaimsIncurredNet

50000000

CY2012

us-gaap

Other Comprehensive Income Loss Reclassification Adjustment For Write Down Of Securities Included In Net Income Tax

OtherComprehensiveIncomeLossReclassificationAdjustmentForWriteDownOfSecuritiesIncludedInNetIncomeTax

24000000

CY2012

us-gaap

Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance

EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance

-0.056

pure

CY2012

us-gaap

Income Tax Expense Benefit Intraperiod Tax Allocation

IncomeTaxExpenseBenefitIntraperiodTaxAllocation

497000000

CY2012

us-gaap

Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax

OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax

1000000

CY2012

us-gaap

Other Comprehensive Income Loss Reclassification Adjustment On Derivatives Included In Net Income Tax

OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeTax

10000000

CY2012

us-gaap

Effective Income Tax Rate Reconciliation Other Adjustments

EffectiveIncomeTaxRateReconciliationOtherAdjustments

0.001

pure

CY2012

us-gaap

Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities

AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities

-2261000000

CY2012

us-gaap

Financial Guarantee Insurance Contracts Premium Received Over Contract Period Premium Receivable Weighted Average Risk Free Discount Rate

FinancialGuaranteeInsuranceContractsPremiumReceivedOverContractPeriodPremiumReceivableWeightedAverageRiskFreeDiscountRate

0.026

pure

CY2012

us-gaap

Other Comprehensive Income Loss Reclassification Adjustment On Derivatives Included In Net Income Net Of Tax

OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeNetOfTax

18000000

CY2012

us-gaap

Increase Decrease In Deferred Policy Acquisition Costs

IncreaseDecreaseInDeferredPolicyAcquisitionCosts

-49000000

CY2012

us-gaap

Cash And Cash Equivalents Period Increase Decrease

CashAndCashEquivalentsPeriodIncreaseDecrease

357000000

CY2012

us-gaap

Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities

ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities

1014000000

CY2012

us-gaap

Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost

IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost

7000000

CY2012

us-gaap

Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential

EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential

-0.012

pure

CY2012

us-gaap

Current State And Local Tax Expense Benefit

CurrentStateAndLocalTaxExpenseBenefit

2000000

CY2012

us-gaap

Stock Repurchase Program Remaining Authorized Repurchase Amount

StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount

23000000

CY2012

us-gaap

Fees And Commissions Other

FeesAndCommissionsOther

3000000

CY2012

us-gaap

Insured Financial Obligations With Credit Deterioration Remaining Weighted Average Contract Period

InsuredFinancialObligationsWithCreditDeteriorationRemainingWeightedAverageContractPeriod

P8Y8M12D

CY2012

us-gaap

Proceeds From Sale Of Available For Sale Securities

ProceedsFromSaleOfAvailableForSaleSecurities

6873000000

CY2012

us-gaap

Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Securities Sold

OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsSecuritiesSold

41000000

CY2012

us-gaap

Other Noncash Income Expense

OtherNoncashIncomeExpense

-257000000

CY2012

us-gaap

Financial Guarantee Insurance Contracts Claim Liability Weighted Average Risk Free Discount Rate

FinancialGuaranteeInsuranceContractsClaimLiabilityWeightedAverageRiskFreeDiscountRate

0.0138

pure

CY2012

us-gaap

Financial Guarantee Insurance Contracts Premium Received Over Contract Period Premium Receivable Weighted Average Collection Period1

FinancialGuaranteeInsuranceContractsPremiumReceivedOverContractPeriodPremiumReceivableWeightedAverageCollectionPeriod1

P9Y1M17D

CY2012

us-gaap

Proceeds From Sale And Collection Of Loans Receivable

ProceedsFromSaleAndCollectionOfLoansReceivable

276000000

CY2012

us-gaap

Assumed Premiums Written Financial Guarantee Insurance Contracts

AssumedPremiumsWrittenFinancialGuaranteeInsuranceContracts

2000000

CY2012

us-gaap

Proceeds From Stock Plans

ProceedsFromStockPlans

1000000

CY2012

us-gaap

Earnings Per Share Basic

EarningsPerShareBasic

6.36

CY2012

us-gaap

Nature Of Operations

NatureOfOperations

<div> Note 1: Business Developments and Risks and Uncertainties  Summary   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 is a provider of asset management advisory services. These activities are managed through three business segments: United States (“U.S.”) public finance insurance; structured finance and international insurance; and advisory services. The Company’s U.S. public finance insurance business is primarily operated through National Public Finance Guarantee Corporation and its subsidiaries (“National”), its structured finance and international insurance business is primarily operated through MBIA Insurance Corporation and its subsidiaries (“MBIA Corp.”), and its asset management advisory services business is primarily operated through Cutwater Holdings, LLC and its subsidiaries (“Cutwater”). The holding company, MBIA, and certain of its subsidiaries also manage certain other business activities, the results of which are reported in its corporate, asset/liability products, and conduit segments. The corporate segment includes revenues and expenses that arise from general corporate activities. While the asset/liability products and conduit businesses represent separate business segments, they may be referred to collectively as “wind-down operations” as the funding programs managed through those businesses are in wind-down. Refer to “Note 12: Business Segments” for further information about the Company’s reporting segments. Business Developments As a result of insured losses and realized investment losses during the period from 2007 through December 31, 2012, the Company has seen ratings downgrades, a near cessation of new insurance business, and increasing liquidity pressure. The Company has been unable to write meaningful amounts of new insurance business since 2008 and does not expect to write significant new insurance business prior to an upgrade of the credit ratings of National. As of December 31, 2012, National was rated BBB with a developing outlook by Standard & Poor’s Financial Services LLC (“S&P”) and Baa2 with a negative outlook by Moody’s Investors Service, Inc. (“Moody’s”). As of December 31, 2012, the liquidity position of MBIA, which consists of the liquidity positions of the Company’s corporate segment and asset/liability products segment, was $239 million compared with $386 million as of December 31, 2011. In the fourth quarter of 2012, the Company repurchased approximately $172 million of its unsecured senior debt on a reverse inquiry basis. Subsequent to December 31, 2012, $115 million was released from an escrow account under the MBIA group’s tax sharing agreement (the “Tax Escrow Account”), which is an increase to MBIA’s liquidity position. Management believes that MBIA can support its operating needs for the foreseeable future primarily from anticipated releases of assets from the Tax Escrow Account, which releases are subject to the risk of National incurring tax losses in the future and declines in the value of the assets held in the Tax Escrow Account. During the fourth quarter of 2012, MBIA successfully completed a consent solicitation pursuant to which it received the consent of MBIA Inc. senior noteholders to amend the indentures pursuant to which its senior notes were issued. Refer to “Note 10: Debt” for information about these amendments. The purpose of the consent solicitation was to avoid the risk of a substantial value erosion of the Company in the event of the initiation of an MBIA Insurance Corporation rehabilitation or liquidation by the New York State Department of Financial Services (“NYSDFS”) (an “MBIA Corp. Proceeding”). There is pending litigation challenging the validity of the aforementioned amendments. Refer to “Note 20: Commitments and Contingencies” for a description of this litigation. During the year ended December 31, 2012, MBIA Corp. continued to seek to reduce both the absolute amount and the volatility of its obligations and potential future claim payments through the execution of commutations of insurance policies. The combination of the failure of certain mortgage originators to honor contractual obligations to repurchase ineligible mortgage loans from securitizations the Company insured, commutation payments to reduce liabilities and claim payments has increased liquidity pressure on MBIA Corp. The failure of certain mortgage originators, primarily Bank of America/Countrywide, to repurchase ineligible mortgages from securitizations the Company insured represents significant breaches of their contractual obligations. As of December 31, 2012 and 2011, MBIA Corp.’s cash and liquid assets were $345 million and $534 million, respectively. The Company believes MBIA Corp.’s current liquidity position is adequate to make expected future claim payments assuming its insured commercial mortgage-backed securities (“CMBS”) exposures held by Bank of America/Merrill Lynch are commuted as part of a settlement of MBIA’s put-back claims against Bank of America. No assurance can be given as to whether such a settlement can be timely reached. In the absence of collecting a substantial amount of its put-back recoverables and in light of the potential for substantial claims in the near-term on its insured CMBS exposure, the related liquidity stress to MBIA Corp. could result in an MBIA Corp. Proceeding. During the year ended December 31, 2012, MBIA Corp. made $1.2 billion in gross claim payments, and commuted $13.4 billion of gross insured exposure, primarily comprising structured CMBS pools, commercial real estate (“CRE”) collateralized debt obligations (“CDOs”), investment grade corporate CDOs, asset-backed securities (“ABS”) CDOs, and subprime residential mortgage-backed securities (“RMBS”) transactions. The reference herein to “ineligible” mortgage loans refers to those mortgage loans that the Company believes failed to comply with the representations and warranties made by the sellers/servicers of the securitizations to which those mortgage loans were sold (including mortgage loans that failed to comply with the related underwriting criteria), based on the Company’s assessment of such mortgage loans’ compliance with such representations and warranties, which included information provided by third-party review firms. The sellers/servicers have contractual obligations to cure, repurchase or replace such ineligible mortgage loans. These expected recoveries are generally referred to as “put-backs”, and are calculated based on the Company’s assessment of a range of possible collection outcomes. The Company’s assessment of the ineligibility of individual mortgage loans has been challenged by the sellers/servicers of the securitizations in litigation and there is no assurance that the Company’s determinations will prevail. Risks and Uncertainties The Company’s financial statements include 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 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 adverse outcomes were to be realized, its statutory capital, financial position, results of operations and cash flows could be materially and adversely affected. Significant risks and uncertainties that could affect amounts reported in the Company’s financial statements in future periods include, but are not limited to, the following:   <table style="BORDER-COLLAPSE: collapse" border="0" cellspacing="0" cellpadding="0" width="100%"> <tr> <td width="4%"> </td> <td valign="top" width="3%" align="left">•</td> <td valign="top" width="1%"> </td> <td valign="top" align="left"> Management’s expected liquidity and capital forecast for MBIA Corp. for 2013 reflects adequate resources to pay expected claims. However, there is a significant risk to this forecast as the Company’s forecast assumes a settlement with Bank of America including a commutation of insured CMBS exposure, as well as a collection of a substantial portion of MBIA’s put-back recoverable recorded against Bank of America/Countrywide. The Company believes that a timely settlement will occur because it believes a comprehensive settlement is in the best interests of MBIA Corp. and Bank of America. If, however, MBIA Corp. is not able to reach a comprehensive settlement with Bank of America and Bank of America’s subsidiary, Merrill Lynch, presents substantial claims on its policies covering CMBS pools, MBIA Corp. may have insufficient resources to cover Bank of America’s claims. While no claims have been made on these CMBS exposures to date, given the significant erosion of the deductible in some of the underlying insured credit default swaps (“CDS”), the Company expects that Bank of America /Merrill Lynch will have the ability to make a claim in the near term. In addition, Bank of America/Merrill Lynch is also one of two remaining plaintiffs in the litigation challenging the establishment of National (“Transformation Litigation”), and developments in this litigation may impact the amount MBIA ultimately collects in a comprehensive settlement. While management believes it is more likely than not that a settlement will be reached, which would alleviate its liquidity risk, there can be no assurance such a settlement will be reached timely on mutually acceptable terms. As a result of the risk that MBIA may not reach a settlement with Bank of America within a reasonable period of time, management has concluded that there is a significant risk of an MBIA Corp. Proceeding. In the event of an MBIA Corp. Proceeding, the Company may be subject to, among other things, the following: </td> </tr> </table>   <table style="BORDER-COLLAPSE: collapse" border="0" cellspacing="0" cellpadding="0" width="100%"> <tr> <td width="13%"> </td> <td valign="top" width="3%" align="left">•</td> <td valign="top" width="1%"> </td> <td valign="top" align="left"> Medium-term notes (“MTNs”) issued by MBIA’s subsidiaries MBIA Global Funding, LLC (“GFL”) and Meridian Global Funding, LLC (“Meridian”), which are insured by MBIA Corp., would accelerate. To the extent GFL failed to pay the accelerated amounts under the GFL MTNs or the collateral securing the Meridian MTNs was deemed insufficient to pay the accelerated amounts under the Meridian MTNs, the MTN holders would have policy claims against MBIA Corp. for scheduled payments of interest and principal; </td> </tr> </table>   <table style="BORDER-COLLAPSE: collapse" border="0" cellspacing="0" cellpadding="0" width="100%"> <tr> <td width="13%"> </td> <td valign="top" width="3%" align="left">•</td> <td valign="top" width="1%"> </td> <td valign="top" align="left"> An MBIA Corp. Proceeding may accelerate certain investment agreements issued by MBIA Inc., including, in some cases, with make-whole payments. While the investment agreements are fully collateralized with high quality collateral, the settlements of these amounts could reduce MBIA Inc.’s liquidity resources, and to the extent MBIA fails to pay the accelerated amounts under these investment agreements or the collateral securing these investment agreements is deemed insufficient to pay the accelerated amounts due, the holders of the investment agreements would have policy claims against MBIA Corp.; </td> </tr> </table>   <table style="BORDER-COLLAPSE: collapse" border="0" cellspacing="0" cellpadding="0" width="100%"> <tr> <td width="13%"> </td> <td valign="top" width="3%" align="left">•</td> <td valign="top" width="1%"> </td> <td valign="top" align="left"> CDS counterparties may seek to terminate CDS contracts insured by MBIA Corp. and make market-based damage claims (irrespective of whether actual credit-related losses are expected under the underlying exposure), which claims could aggregate $7.0 billion or more. The Company believes that such an acceleration would likely eliminate any residual value in MBIA Corp.; </td> </tr> </table>   <table style="BORDER-COLLAPSE: collapse" border="0" cellspacing="0" cellpadding="0" width="100%"> <tr> <td width="13%"> </td> <td valign="top" width="3%" align="left">•</td> <td valign="top" width="1%"> </td> <td valign="top" align="left"> The Company may be unable to carry out its tax planning strategies as a result of an MBIA Corp. Proceeding. This may cause the Company to record additional allowances against a portion or all of its deferred tax assets. Refer to “Note 11: Income Taxes” for information about the Company’s deferred tax assets. In addition, the Company currently files a consolidated tax return. An MBIA Corp. Proceeding could result in challenges to the tax sharing arrangement among the MBIA affiliates that might adversely affect the Company’s ability to manage taxes efficiently; </td> </tr> </table>   <table style="BORDER-COLLAPSE: collapse" border="0" cellspacing="0" cellpadding="0" width="100%"> <tr> <td width="13%"> </td> <td valign="top" width="3%" align="left">•</td> <td valign="top" width="1%"> </td> <td valign="top" align="left"> The rehabilitator or liquidator would replace the Board of Directors of MBIA Corp. and take control of the operations and assets of MBIA Corp., which would result in MBIA Inc. losing control of MBIA Corp. and possible changes to MBIA Corp.’s strategies and management; </td> </tr> </table>   <table style="BORDER-COLLAPSE: collapse" border="0" cellspacing="0" cellpadding="0" width="100%"> <tr> <td width="13%"> </td> <td valign="top" width="3%" align="left">•</td> <td valign="top" width="1%"> </td> <td valign="top" align="left"> An MBIA Corp. Proceeding would be an event of default under the secured loan from National to MBIA Corp. (“National Secured Loan”). While National has a perfected interest in the assets pledged to secure the loan and the Company expects that National will be repaid in full from the assets pledged to secure the loan, an MBIA Corp. Proceeding could result in challenges to National’s ability to collect amounts due under the loan and in a delay in National’s ability to realize on the collateral securing the loan. Impairment of the National Secured Loan could materially adversely affect National’s capital position and results of operations, its ratings, its plan to re-enter the municipal bond insurance business; </td> </tr> </table>   <table style="BORDER-COLLAPSE: collapse" border="0" cellspacing="0" cellpadding="0" width="100%"> <tr> <td width="13%"> </td> <td valign="top" width="3%" align="left">•</td> <td valign="top" width="1%"> </td> <td valign="top" align="left"> An MBIA Corp. Proceeding may impose unplanned costs on MBIA Inc. In addition, MBIA Corp. would be subject to significant additional expenses arising from the appointment of a rehabilitator or liquidator, as receiver, and payment of the fees and expenses of the advisors to such rehabilitator or liquidator; and </td> </tr> </table>   <table style="BORDER-COLLAPSE: collapse" border="0" cellspacing="0" cellpadding="0" width="100%"> <tr> <td width="13%"> </td> <td valign="top" width="3%" align="left">•</td> <td valign="top" width="1%"> </td> <td valign="top" align="left"> While MBIA Inc.’s senior note indentures were amended in November 2012 such that an MBIA Corp. Proceeding would not constitute an event of default, Bank of America has initiated pending litigation regarding the validity of those amendments, and there can be no assurance that the validity of those amendments would be upheld. If the amendments were to be overturned, MBIA Inc.’s senior debt may be accelerated if an MBIA Corp. Proceeding were to occur. </td> </tr> </table>   <table style="BORDER-COLLAPSE: collapse" border="0" cellspacing="0" cellpadding="0" width="100%"> <tr> <td width="4%"> </td> <td valign="top" width="3%" align="left">•</td> <td valign="top" width="1%"> </td> <td valign="top" align="left"> Management believes that MBIA Inc. has sufficient liquidity resources to meet all of its obligations for the foreseeable future. However, MBIA Inc. may not have sufficient liquidity to make all payments due on its liabilities and to meet other financial requirements, such as posting collateral, primarily as a result of invested asset performance and a potential inadequacy of dividends from its principal operating subsidiaries. In order to meet liquidity requirements, MBIA Inc. may finance unencumbered assets through intercompany or third-party facilities, in some cases with NYSDFS approval, or use free cash or other assets, although there can be no assurance that these strategies will be available or adequate. A failure by MBIA Inc. to settle liabilities that are also insured by MBIA Corp. could result in claims on MBIA Corp. </td> </tr> </table>   <table style="BORDER-COLLAPSE: collapse" border="0" cellspacing="0" cellpadding="0" width="100%"> <tr> <td width="4%"> </td> <td valign="top" width="3%" align="left">•</td> <td valign="top" width="1%"> </td> <td valign="top" align="left"> Incurred losses from insured RMBS have declined from their peaks. However, due to the large percentage of ineligible mortgage loans included within the MBIA Corp. insured second-lien portfolio, performance remains difficult to predict and losses could ultimately be in excess of MBIA Corp.’s current estimated loss reserves. In addition, MBIA Corp.’s efforts to recover losses from second-lien RMBS originators, including but not limited to Bank of America, could be delayed, settled at amounts below its contractual claims or potentially settled at amounts below those recorded in its financial statements. Refer to “Note 6: Loss and Loss Adjustment Expense Reserves” for information about MBIA Corp.’s RMBS reserves and recoveries. </td> </tr> </table>   <table style="BORDER-COLLAPSE: collapse" border="0" cellspacing="0" cellpadding="0" width="100%"> <tr> <td width="4%"> </td> <td valign="top" width="3%" align="left">•</td> <td valign="top" width="1%"> </td> <td valign="top" align="left"> Further economic stress might cause increases in MBIA Corp.’s loss estimates on its remaining exposure, particularly within its higher risk structured CMBS pool and ABS CDO exposures. As of December 31, 2012, MBIA Corp.’s CMBS pool gross par outstanding, including exposure held by Bank of America, and ABS CDO gross par outstanding was approximately $15.6 billion and $4.3 billion, respectively. The Company’s primary strategy for managing its CMBS pool and ABS CDO exposures has been commutations. Consistent with this strategy, in the fourth quarter of 2012, MBIA Corp. agreed with a CDS counterparty on a commutation of certain potentially volatile policies insuring ABS CDO, structured CMBS pools and CRE CDO transactions. The agreement was subject to the approval by the NYSDFS of a request to draw on the National Secured Loan in order to finance the commutation, as well as the receipt by MBIA Corp. of confirmation from the NYSDFS of its non-disapproval of the commutation. MBIA Corp. requested the NYSDFS to confirm its non-disapproval of the commutation and for approval of a loan under the National Secured Loan or for approval of an alternative financing structure to finance the commutation. Subsequent to December 31, 2012, those requests were denied. The Company’s ability to commute insured transactions is limited by available liquidity, including the availability of intercompany loans under the National Secured Loan and the use of other available financing structures and liquidity, all of which could be subject to regulatory approval by the NYSDFS. There can be no assurance that the Company will be able to fund further commutations by borrowing from National or otherwise. Refer to “Note 6: Loss and Loss Adjustment Expense Reserves” for information about the Company’s estimate of losses on its exposures. </td> </tr> </table>   <table style="BORDER-COLLAPSE: collapse" border="0" cellspacing="0" cellpadding="0" width="100%"> <tr> <td width="4%"> </td> <td valign="top" width="3%" align="left">•</td> <td valign="top" width="1%"> </td> <td valign="top" align="left"> As of December 31, 2012, MBIA Corp. was not in compliance with a requirement under New York Insurance Law (“NYIL”) to hold qualifying assets in an amount at least equal to its insurance liabilities. In order to be in compliance, MBIA Corp. has requested approval from the NYSDFS to release a portion of its contingency reserves but, to date, has not received approval. In addition, as of September 30, 2012 and December 31, 2012, MBIA Corp. exceeded its aggregate risk limits under NYIL. MBIA Corp. has filed a formal notification with the NYSDFS regarding the overage and submitted a plan to achieve compliance with its limits. While the NYSDFS has not taken action against MBIA Corp., the NYSDFS may restrict MBIA Corp. from making commutation or other payments or may impose other remedial actions for failing to meet these requirements. </td> </tr> </table>   <table style="BORDER-COLLAPSE: collapse" border="0" cellspacing="0" cellpadding="0" width="100%"> <tr> <td width="4%"> </td> <td valign="top" width="3%" align="left">•</td> <td valign="top" width="1%"> </td> <td valign="top" align="left"> Litigation over the NYSDFS approval of National’s creation or additional hurdles to achieving high stable ratings may continue to impede National’s ability to resume writing municipal bond insurance, reducing its long-term ability to generate capital and cash from operations. An adverse result in the litigation could result in a cessation of National’s ability to write new business and a material adverse effect on National and the Company. </td> </tr> </table>   <table style="BORDER-COLLAPSE: collapse" border="0" cellspacing="0" cellpadding="0" width="100%"> <tr> <td width="4%"> </td> <td valign="top" width="3%" align="left">•</td> <td valign="top" width="1%"> </td> <td valign="top" align="left"> In the event the economy and the markets to which MBIA is exposed do not improve, or decline, the unrealized losses on insured credit derivatives could increase, causing additional stress in the Company’s reported financial results. In addition, volatility in the relationship between MBIA’s credit spreads and those on underlying collateral assets of insured credit derivatives can create significant unrealized gains and losses on the Company’s reported results of operations. Refer to “Note 7: Fair Value of Financial Instruments” for information about the Company’s valuation of insured credit derivatives. </td> </tr> </table> </div>

CY2012

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CY2012

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CY2012

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Deferred Income Tax Expense Benefit

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CY2012

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CY2012

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CY2012

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CY2012

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CY2012

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CY2012

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CY2012

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CY2012

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Comprehensive Income Net Of Tax

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CY2012

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CY2012

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CY2012

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Undistributed Earnings

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CY2012

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CY2012

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Income Tax Effects Allocated Directly To Equity

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Deferred Foreign Income Tax Expense Benefit

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CY2012

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Deferred Federal Income Tax Expense Benefit

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CY2012

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CY2012

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CY2012

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CY2012

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CY2012

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Effective Income Tax Rate Reconciliation Deferred Tax Inventory Adjustment

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CY2012

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Effective Income Tax Rate Reconciliation Mark To Market On Warrants

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CY2012

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Incentive Stock Options And Non Qualified Stock Options Granted Price At Fair Value Of Common Stock Percentage

IncentiveStockOptionsAndNonQualifiedStockOptionsGrantedPriceAtFairValueOfCommonStockPercentage

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CY2012

mbi

Increase Decrease In Insurance Loss Recoverable

IncreaseDecreaseInInsuranceLossRecoverable

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CY2012

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Increase Decrease In Insurance Loss Recoverable Related To Paid Losses

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602000000

CY2012

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Increase Decrease In Net Gains Losses On Financial Instruments At Fair Value And Foreign Exchange

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CY2012

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-7000000

CY2012

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Losses And Loss Adjustment Expenses Related To Actual And Expected Payments

LossesAndLossAdjustmentExpensesRelatedToActualAndExpectedPayments

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CY2012

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MaximumTaxableIncomeProjectionYears

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CY2012

mbi

Net Other Than Temporary Impairments

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105000000

CY2012

mbi

Non Payment Of Dividends On Preferred Stock

NonPaymentOfDividendsOnPreferredStock

18

M

CY2012

mbi

Number Of Executed Surety Bonds To Guarantee Payment Obligations

NumberOfExecutedSuretyBondsToGuaranteePaymentObligations

5

Bonds

CY2012

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Payments For Net Losses And Loss Adjustment Expenses Paid

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CY2012

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CY2012

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Percentage Of Adjusted Net Investment Income

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1.00

pure

CY2012

mbi

Percentage Of Policy Holders Surplus

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0.10

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CY2012

mbi

Percentage Of Voting Interests Of Company

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0.10

pure

CY2012

mbi

Premiums Earned Net Financial Guarantee Insurance Contracts And Insured Derivatives

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0.12

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CY2012

mbi

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CY2012

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CY2012

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CY2012

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CY2012

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Recoveries Of Actual And Expected Payments

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1

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CY2012

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Surplus Notes Repurchased At Outstanding Par Value

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Surplus Notes Weighted Average Price Per Unit

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CY2012

mbi

Transfers Into And Out Of Level One

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0

CY2012

mbi

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CY2012

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Transfers Into Level Two

TransfersIntoLevelTwo

157000000

CY2012

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Transfers Out Of Level Three

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157000000

CY2012

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Transfers Out Of Level Two

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293000000

CY2012

mbi

Unrealizable Deferred Tax Assets

UnrealizableDeferredTaxAssets

1200000000

CY2012

mbi

Unvested Restricted Stock And Units That Receive Nonforfeitable Dividends Or Dividend Equivalents

UnvestedRestrictedStockAndUnitsThatReceiveNonforfeitableDividendsOrDividendEquivalents

5514523

shares

CY2012

mbi

Weighted Average Assumption For Measurement Of Current Subordination Levels

WeightedAverageAssumptionForMeasurementOfCurrentSubordinationLevels

0.0000

pure

CY2012

mbi

Weighted Average Assumption For Measurement Of Expected Size Of Losses

WeightedAverageAssumptionForMeasurementOfExpectedSizeOfLosses

0.8767

pure

CY2012

mbi

Number Of Other Lawsuits

NumberOfOtherLawsuits

0

LawSuits

CY2012

mbi

Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Prices

ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrices

50.8330

CY2012

mbi

Increase Decrease In Accumulated Other Comprehensive Income Loss Balances Net Of Tax Effects

IncreaseDecreaseInAccumulatedOtherComprehensiveIncomeLossBalancesNetOfTaxEffects

5000000

CY2012

mbi

Reinsurance Gains Of Third Party

ReinsuranceGainsOfThirdParty

-51000000

CY2012

mbi

Stock Repurchase Program Average Price Per Share

StockRepurchaseProgramAveragePricePerShare

17.24

CY2012

mbi

Losses And Loss Adjustment Expenses Net Of Reinsurance

LossesAndLossAdjustmentExpensesNetOfReinsurance

631000000

CY2012

mbi

Increasedecrease In Net Incomeloss

IncreasedecreaseInNetIncomeloss

60000000

CY2012

mbi

Loan Balance Greater Than With Debt Service Coverage Ratio

LoanBalanceGreaterThanWithDebtServiceCoverageRatio

75000000

CY2012

mbi

Other Comprehensive Income Unrealized Holding Gain Loss On Securities With No Other Than Temporary Impairments Arising During Period After Reclassification Adjustments Net Of Tax

OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesWithNoOtherThanTemporaryImpairmentsArisingDuringPeriodAfterReclassificationAdjustmentsNetOfTax

150000000

CY2012

mbi

Other Comprehensive Income Unrealized Holding Gain Loss On Securities With Other Than Temporary Impairments Arising During Period After Reclassification Adjustments Net Of Tax

OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesWithOtherThanTemporaryImpairmentsArisingDuringPeriodAfterReclassificationAdjustmentsNetOfTax

-77000000

CY2012

mbi

Number Of Representative Cohorts In Commercial Real Estate Proprietary Model Based On Debt Service Coverage Ratio And Property Type

NumberOfRepresentativeCohortsInCommercialRealEstateProprietaryModelBasedOnDebtServiceCoverageRatioAndPropertyType

168

CY2012

mbi

Weighted Average Assumption Measurement Prepayment Speed

WeightedAverageAssumptionMeasurementPrepaymentSpeed

0.1193

pure

CY2012

mbi

Percentage Of Qualified Financial Guarantee Contracts

PercentageOfQualifiedFinancialGuaranteeContracts

0.91

pure

CY2012

mbi

Approximate Percentage Of Level Three Assets At Fair Value In Assets Measured At Fair Value

ApproximatePercentageOfLevelThreeAssetsAtFairValueInAssetsMeasuredAtFairValue

0.29

pure

CY2012

mbi

Approximate Percentage Of Level Three Liabilities At Fair Value In Liabilities Measured At Fair Value

ApproximatePercentageOfLevelThreeLiabilitiesAtFairValueInLiabilitiesMeasuredAtFairValue

0.73

pure

CY2012

mbi

Additional Estimated Credit Impairment On Commercial Mortgage Backed Securities Derivatives

AdditionalEstimatedCreditImpairmentOnCommercialMortgageBackedSecuritiesDerivatives

852000000

CY2012

mbi

Commercial Mortgage Backed Securities Severities Exceeded Complete Loss In Certain Instances

CommercialMortgageBackedSecuritiesSeveritiesExceededCompleteLossInCertainInstances

1.00

pure

CY2012

mbi

Available For Sale Securities Gross Realized Gain Loss Net Excluding Other Than Temporary Impairments

AvailableForSaleSecuritiesGrossRealizedGainLossNetExcludingOtherThanTemporaryImpairments

69000000

CY2012

mbi

Interest Rate On Surplus Notes

InterestRateOnSurplusNotes

0.14

pure

CY2012

mbi

Surplus Notes At Par Value Owed By Corporate Segment

SurplusNotesAtParValueOwedByCorporateSegment

13000000

CY2012

mbi

Change In Unrealized Gains Loss On Investments

ChangeInUnrealizedGainsLossOnInvestments

-75000000

CY2010Q1

us-gaap

Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1

SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1

P5Y

CY2010Q1

us-gaap

Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period

ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod

1100000

shares

CY2010Q1

us-gaap

Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate

ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate

0.02585

pure

CY2010Q1

us-gaap

Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate

ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate

0.009938

pure

CY2010Q1

us-gaap

Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate

ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate

0.00000

pure

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$MBI
MBIA INC Stock $mbi

2012 Form 10-K Financial Statement

#000119312513080289 Filed on February 27, 2013

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$MBI MBIA INC Stock $mbi

2012 Form 10-K Financial Statement

#000119312513080289 Filed on February 27, 2013

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$MBI
MBIA INC Stock $mbi