10-Q Filing

MBIA INC CIK: 814585 Q3 2024

Filing Information

Form Type	10-Q
Accession Number	`0000950170-24-123396`
Period End Date	20240930
Filing Date	20241107
Fiscal Year	2024
Fiscal Period	Q3
XBRL Instance	mbi-20240930_htm.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 100 Income Statement 164 Cash Flow Statement 216 Stockholders Equity 44 Comprehensive Income 56

Balance Sheet 100 line items

Line Item	Tag	Value	Unit	Period
Fixed-maturity securities held as available-for-sale, amortized cost	`DebtSecuritiesAvailableForSaleAmortizedCostAfterAllowanceForCreditLoss`	$1.46B	USD	Point-in-time
Fixed-maturity securities held as available-for-sale, amortized cost	`DebtSecuritiesAvailableForSaleAmortizedCostAfterAllowanceForCreditLoss`	$1.46B	USD	Point-in-time
Preferred stock, par value	`PreferredStockParOrStatedValuePerShare`	$1.00	USD	Point-in-time
Preferred stock, par value	`PreferredStockParOrStatedValuePerShare`	$1.00	USD	Point-in-time
Preferred stock, par value	`PreferredStockParOrStatedValuePerShare`	$1.00	USD	Point-in-time
Preferred stock, par value	`PreferredStockParOrStatedValuePerShare`	$1.00	USD	Point-in-time
Preferred stock, authorized shares	`PreferredStockSharesAuthorized`	10.00M	shares	Point-in-time
Preferred stock, authorized shares	`PreferredStockSharesAuthorized`	10.00M	shares	Point-in-time
Preferred stock, authorized shares	`PreferredStockSharesAuthorized`	10.00M	shares	Point-in-time
Preferred stock, authorized shares	`PreferredStockSharesAuthorized`	10.00M	shares	Point-in-time
Preferred stock, issued	`PreferredStockSharesIssued`	0.00	shares	Point-in-time
Preferred stock, issued	`PreferredStockSharesIssued`	0.00	shares	Point-in-time
Preferred stock, issued	`PreferredStockSharesIssued`	0.00	shares	Point-in-time
Preferred stock, issued	`PreferredStockSharesIssued`	0.00	shares	Point-in-time
Preferred stock, outstanding	`PreferredStockSharesOutstanding`	0.00	shares	Point-in-time
Preferred stock, outstanding	`PreferredStockSharesOutstanding`	0.00	shares	Point-in-time
Preferred stock, outstanding	`PreferredStockSharesOutstanding`	0.00	shares	Point-in-time
Preferred stock, outstanding	`PreferredStockSharesOutstanding`	0.00	shares	Point-in-time
Common stock, par value	`CommonStockParOrStatedValuePerShare`	$1.00	USD	Point-in-time
Common stock, par value	`CommonStockParOrStatedValuePerShare`	$1.00	USD	Point-in-time
Common stock, par value	`CommonStockParOrStatedValuePerShare`	$1.00	USD	Point-in-time
Common stock, par value	`CommonStockParOrStatedValuePerShare`	$1.00	USD	Point-in-time
Common stock, authorized shares	`CommonStockSharesAuthorized`	400.00M	shares	Point-in-time
Common stock, authorized shares	`CommonStockSharesAuthorized`	400.00M	shares	Point-in-time
Common stock, authorized shares	`CommonStockSharesAuthorized`	400.00M	shares	Point-in-time
Common stock, authorized shares	`CommonStockSharesAuthorized`	400.00M	shares	Point-in-time
Assets held for sale	`AssetsOfDisposalGroupIncludingDiscontinuedOperation`	$12.00M	USD	Point-in-time
Assets held for sale	`AssetsOfDisposalGroupIncludingDiscontinuedOperation`	$12.00M	USD	Point-in-time
Common stock, issued shares	`CommonStockSharesIssued`	283.19M	shares	Point-in-time
Common stock, issued shares	`CommonStockSharesIssued`	283.19M	shares	Point-in-time
Assets held for sale	`AssetsOfDisposalGroupIncludingDiscontinuedOperation`	$73.00M	USD	Point-in-time
Assets held for sale	`AssetsOfDisposalGroupIncludingDiscontinuedOperation`	$73.00M	USD	Point-in-time
Common stock, issued shares	`CommonStockSharesIssued`	283.19M	shares	Point-in-time
Common stock, issued shares	`CommonStockSharesIssued`	283.19M	shares	Point-in-time
Accumulated other comprehensive income (loss), taxes	`AccumulatedOtherComprehensiveIncomeLossDeferredIncomeTaxes`	$7.00M	USD	Point-in-time
Accumulated other comprehensive income (loss), taxes	`AccumulatedOtherComprehensiveIncomeLossDeferredIncomeTaxes`	$7.00M	USD	Point-in-time
Accumulated other comprehensive income (loss), taxes	`AccumulatedOtherComprehensiveIncomeLossDeferredIncomeTaxes`	$7.00M	USD	Point-in-time
Accumulated other comprehensive income (loss), taxes	`AccumulatedOtherComprehensiveIncomeLossDeferredIncomeTaxes`	$7.00M	USD	Point-in-time
Treasury stock, shares	`TreasuryStockCommonShares`	232.16M	shares	Point-in-time
Treasury stock, shares	`TreasuryStockCommonShares`	232.16M	shares	Point-in-time
Treasury stock, shares	`TreasuryStockCommonShares`	232.32M	shares	Point-in-time
Treasury stock, shares	`TreasuryStockCommonShares`	232.32M	shares	Point-in-time
Total assets	`Assets`	$2.23B	USD	Point-in-time
Total assets	`Assets`	$2.23B	USD	Point-in-time
Total assets	`Assets`	$2.61B	USD	Point-in-time
Total assets	`Assets`	$2.61B	USD	Point-in-time
Liabilities held for sale	`LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation`	$64.00M	USD	Point-in-time
Liabilities held for sale	`LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation`	$64.00M	USD	Point-in-time
Liabilities held for sale	`LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation`	$7.00M	USD	Point-in-time
Liabilities held for sale	`LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation`	$7.00M	USD	Point-in-time
Total liabilities	`Liabilities`	$4.25B	USD	Point-in-time
Total liabilities	`Liabilities`	$4.25B	USD	Point-in-time
Total liabilities	`Liabilities`	$4.22B	USD	Point-in-time
Total liabilities	`Liabilities`	$4.22B	USD	Point-in-time
Commitments and contingencies (Refer to Note 12: Commitments and Contingencies)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments and contingencies (Refer to Note 12: Commitments and Contingencies)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments and contingencies (Refer to Note 12: Commitments and Contingencies)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments and contingencies (Refer to Note 12: Commitments and Contingencies)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Preferred stock, par value $1 per share; authorized shares10,000,000; issued and outstandingnone	`PreferredStockValue`	-	USD	Point-in-time
Preferred stock, par value $1 per share; authorized shares10,000,000; issued and outstandingnone	`PreferredStockValue`	-	USD	Point-in-time
Preferred stock, par value $1 per share; authorized shares10,000,000; issued and outstandingnone	`PreferredStockValue`	-	USD	Point-in-time
Preferred stock, par value $1 per share; authorized shares10,000,000; issued and outstandingnone	`PreferredStockValue`	-	USD	Point-in-time
Common stock, par value $1 per share; authorized shares--400,000,000; issued shares--283,186,115 and 283,186,115	`CommonStockValue`	$283.00M	USD	Point-in-time
Common stock, par value $1 per share; authorized shares--400,000,000; issued shares--283,186,115 and 283,186,115	`CommonStockValue`	$283.00M	USD	Point-in-time
Common stock, par value $1 per share; authorized shares--400,000,000; issued shares--283,186,115 and 283,186,115	`CommonStockValue`	$283.00M	USD	Point-in-time
Common stock, par value $1 per share; authorized shares--400,000,000; issued shares--283,186,115 and 283,186,115	`CommonStockValue`	$283.00M	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapital`	$2.52B	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapital`	$2.52B	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapital`	$2.48B	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapital`	$2.48B	USD	Point-in-time
Retained earnings (deficit)	`RetainedEarningsAccumulatedDeficit`	$-1.14B	USD	Point-in-time
Retained earnings (deficit)	`RetainedEarningsAccumulatedDeficit`	$-1.14B	USD	Point-in-time
Retained earnings (deficit)	`RetainedEarningsAccumulatedDeficit`	$-1.54B	USD	Point-in-time
Retained earnings (deficit)	`RetainedEarningsAccumulatedDeficit`	$-1.54B	USD	Point-in-time
Accumulated other comprehensive income (loss), net of tax of $7 and $7	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-139.00M	USD	Point-in-time
Accumulated other comprehensive income (loss), net of tax of $7 and $7	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-139.00M	USD	Point-in-time
Accumulated other comprehensive income (loss), net of tax of $7 and $7	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-88.00M	USD	Point-in-time
Accumulated other comprehensive income (loss), net of tax of $7 and $7	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-88.00M	USD	Point-in-time
Treasury stock, at cost--232,156,715 and 232,323,184 shares	`TreasuryStockValue`	$3.14B	USD	Point-in-time
Treasury stock, at cost--232,156,715 and 232,323,184 shares	`TreasuryStockValue`	$3.14B	USD	Point-in-time
Treasury stock, at cost--232,156,715 and 232,323,184 shares	`TreasuryStockValue`	$3.17B	USD	Point-in-time
Treasury stock, at cost--232,156,715 and 232,323,184 shares	`TreasuryStockValue`	$3.17B	USD	Point-in-time
Total shareholders' equity of MBIA Inc.	`StockholdersEquity`	$-1.66B	USD	Point-in-time
Total shareholders' equity of MBIA Inc.	`StockholdersEquity`	$-1.66B	USD	Point-in-time
Total shareholders' equity of MBIA Inc.	`StockholdersEquity`	$-2.00B	USD	Point-in-time
Total shareholders' equity of MBIA Inc.	`StockholdersEquity`	$-2.00B	USD	Point-in-time
Preferred stock of subsidiary and noncontrolling interest held for sale	`MinorityInterestAmountRepresentedByPreferredStockAndMinorityInterestsHeldForSale`	$13.00M	USD	Point-in-time
Preferred stock of subsidiary and noncontrolling interest held for sale	`MinorityInterestAmountRepresentedByPreferredStockAndMinorityInterestsHeldForSale`	$13.00M	USD	Point-in-time
Preferred stock of subsidiary and noncontrolling interest held for sale	`MinorityInterestAmountRepresentedByPreferredStockAndMinorityInterestsHeldForSale`	$10.00M	USD	Point-in-time
Preferred stock of subsidiary and noncontrolling interest held for sale	`MinorityInterestAmountRepresentedByPreferredStockAndMinorityInterestsHeldForSale`	$10.00M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$-1.65B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$-1.65B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$-1.23B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$-1.23B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$-1.99B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$-1.99B	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$2.61B	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$2.61B	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$2.23B	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$2.23B	USD	Point-in-time

Income Statement 164 line items

Line Item	Tag	Value	Unit	Period
Net realized investment gains (losses)	`RealizedInvestmentGainsLosses`	$-3.00M	USD	3 Qtrs
Net realized investment gains (losses)	`RealizedInvestmentGainsLosses`	$-3.00M	USD	3 Qtrs
Net realized investment gains (losses)	`RealizedInvestmentGainsLosses`	$-23.00M	USD	3 Qtrs
Net realized investment gains (losses)	`RealizedInvestmentGainsLosses`	$-23.00M	USD	3 Qtrs
Net gains (losses) on financial instruments at fair value and foreign exchange	`NetGainsLossesOnFinancialInstrumentsAtFairValueAndForeignExchange`	$-5.00M	USD	1 Quarter
Net gains (losses) on financial instruments at fair value and foreign exchange	`NetGainsLossesOnFinancialInstrumentsAtFairValueAndForeignExchange`	$-5.00M	USD	1 Quarter
Net gains (losses) on financial instruments at fair value and foreign exchange	`NetGainsLossesOnFinancialInstrumentsAtFairValueAndForeignExchange`	$20.00M	USD	3 Qtrs
Net gains (losses) on financial instruments at fair value and foreign exchange	`NetGainsLossesOnFinancialInstrumentsAtFairValueAndForeignExchange`	$20.00M	USD	3 Qtrs
Net gains (losses) on financial instruments at fair value and foreign exchange	`NetGainsLossesOnFinancialInstrumentsAtFairValueAndForeignExchange`	$-56.00M	USD	3 Qtrs
Net gains (losses) on financial instruments at fair value and foreign exchange	`NetGainsLossesOnFinancialInstrumentsAtFairValueAndForeignExchange`	$-56.00M	USD	3 Qtrs
Net gains (losses) on financial instruments at fair value and foreign exchange	`NetGainsLossesOnFinancialInstrumentsAtFairValueAndForeignExchange`	$21.00M	USD	1 Quarter
Net gains (losses) on financial instruments at fair value and foreign exchange	`NetGainsLossesOnFinancialInstrumentsAtFairValueAndForeignExchange`	$21.00M	USD	1 Quarter
Total revenues	`Revenues`	$38.00M	USD	3 Qtrs
Total revenues	`Revenues`	$38.00M	USD	3 Qtrs
Total revenues	`Revenues`	$29.00M	USD	1 Quarter
Total revenues	`Revenues`	$29.00M	USD	1 Quarter
Total revenues	`Revenues`	$8.00M	USD	1 Quarter
Total revenues	`Revenues`	$8.00M	USD	1 Quarter
Total revenues	`Revenues`	$5.00M	USD	3 Qtrs
Total revenues	`Revenues`	$5.00M	USD	3 Qtrs
Losses and loss adjustment	`LossesAndLossAdjustment`	$11.00M	USD	1 Quarter
Losses and loss adjustment	`LossesAndLossAdjustment`	$11.00M	USD	1 Quarter
Losses and loss adjustment	`LossesAndLossAdjustment`	$171.00M	USD	3 Qtrs
Losses and loss adjustment	`LossesAndLossAdjustment`	$171.00M	USD	3 Qtrs
Losses and loss adjustment	`LossesAndLossAdjustment`	$158.00M	USD	3 Qtrs
Losses and loss adjustment	`LossesAndLossAdjustment`	$158.00M	USD	3 Qtrs
Losses and loss adjustment	`LossesAndLossAdjustment`	$123.00M	USD	1 Quarter
Losses and loss adjustment	`LossesAndLossAdjustment`	$123.00M	USD	1 Quarter
Interest	`InterestExpense`	$53.00M	USD	1 Quarter
Interest	`InterestExpense`	$53.00M	USD	1 Quarter
Interest	`InterestExpense`	$53.00M	USD	1 Quarter
Interest	`InterestExpense`	$53.00M	USD	1 Quarter
Interest	`InterestExpense`	$157.00M	USD	3 Qtrs
Interest	`InterestExpense`	$157.00M	USD	3 Qtrs
Interest	`InterestExpense`	$158.00M	USD	3 Qtrs
Interest	`InterestExpense`	$158.00M	USD	3 Qtrs
Total expenses	`BenefitsLossesAndExpenses`	$384.00M	USD	3 Qtrs
Total expenses	`BenefitsLossesAndExpenses`	$384.00M	USD	3 Qtrs
Total expenses	`BenefitsLossesAndExpenses`	$396.00M	USD	3 Qtrs
Total expenses	`BenefitsLossesAndExpenses`	$396.00M	USD	3 Qtrs
Total expenses	`BenefitsLossesAndExpenses`	$80.00M	USD	1 Quarter
Total expenses	`BenefitsLossesAndExpenses`	$80.00M	USD	1 Quarter
Total expenses	`BenefitsLossesAndExpenses`	$193.00M	USD	1 Quarter
Total expenses	`BenefitsLossesAndExpenses`	$193.00M	USD	1 Quarter
Income (loss) from continuing operations before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$-51.00M	USD	1 Quarter
Income (loss) from continuing operations before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$-51.00M	USD	1 Quarter
Income (loss) from continuing operations before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$-185.00M	USD	1 Quarter
Income (loss) from continuing operations before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$-185.00M	USD	1 Quarter
Income (loss) from continuing operations before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$-391.00M	USD	3 Qtrs
Income (loss) from continuing operations before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$-391.00M	USD	3 Qtrs
Income (loss) from continuing operations before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$-346.00M	USD	3 Qtrs
Income (loss) from continuing operations before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$-346.00M	USD	3 Qtrs
Provision (benefit) for income taxes	`IncomeTaxExpenseBenefit`	-	USD	3 Qtrs
Provision (benefit) for income taxes	`IncomeTaxExpenseBenefit`	-	USD	3 Qtrs
Provision (benefit) for income taxes	`IncomeTaxExpenseBenefit`	-	USD	1 Quarter
Provision (benefit) for income taxes	`IncomeTaxExpenseBenefit`	-	USD	1 Quarter
Provision (benefit) for income taxes	`IncomeTaxExpenseBenefit`	-	USD	1 Quarter
Provision (benefit) for income taxes	`IncomeTaxExpenseBenefit`	-	USD	1 Quarter
Provision (benefit) for income taxes	`IncomeTaxExpenseBenefit`	-	USD	3 Qtrs
Provision (benefit) for income taxes	`IncomeTaxExpenseBenefit`	-	USD	3 Qtrs
Income (loss) from continuing operations	`IncomeLossFromContinuingOperations`	$-51.00M	USD	1 Quarter
Income (loss) from continuing operations	`IncomeLossFromContinuingOperations`	$-51.00M	USD	1 Quarter
Income (loss) from continuing operations	`IncomeLossFromContinuingOperations`	$-346.00M	USD	3 Qtrs
Income (loss) from continuing operations	`IncomeLossFromContinuingOperations`	$-346.00M	USD	3 Qtrs
Income (loss) from continuing operations	`IncomeLossFromContinuingOperations`	$-185.00M	USD	1 Quarter
Income (loss) from continuing operations	`IncomeLossFromContinuingOperations`	$-185.00M	USD	1 Quarter
Income (loss) from continuing operations	`IncomeLossFromContinuingOperations`	$-391.00M	USD	3 Qtrs
Income (loss) from continuing operations	`IncomeLossFromContinuingOperations`	$-391.00M	USD	3 Qtrs
Income (loss) from discontinued operations, net of income taxes	`IncomeLossFromDiscontinuedOperationsNetOfTax`	$-1.00M	USD	1 Quarter
Income (loss) from discontinued operations, net of income taxes	`IncomeLossFromDiscontinuedOperationsNetOfTax`	$-1.00M	USD	1 Quarter
Income (loss) from discontinued operations, net of income taxes	`IncomeLossFromDiscontinuedOperationsNetOfTax`	$-1.00M	USD	1 Quarter
Income (loss) from discontinued operations, net of income taxes	`IncomeLossFromDiscontinuedOperationsNetOfTax`	$-1.00M	USD	1 Quarter
Income (loss) from discontinued operations, net of income taxes	`IncomeLossFromDiscontinuedOperationsNetOfTax`	$-2.00M	USD	3 Qtrs
Income (loss) from discontinued operations, net of income taxes	`IncomeLossFromDiscontinuedOperationsNetOfTax`	$-2.00M	USD	3 Qtrs
Income (loss) from discontinued operations, net of income taxes	`IncomeLossFromDiscontinuedOperationsNetOfTax`	$-2.00M	USD	3 Qtrs
Income (loss) from discontinued operations, net of income taxes	`IncomeLossFromDiscontinuedOperationsNetOfTax`	$-2.00M	USD	3 Qtrs
Net income (loss)	`ProfitLoss`	$-393.00M	USD	3 Qtrs
Net income (loss)	`ProfitLoss`	$-393.00M	USD	3 Qtrs
Net income (loss)	`ProfitLoss`	$-348.00M	USD	3 Qtrs
Net income (loss)	`ProfitLoss`	$-348.00M	USD	3 Qtrs
Net income (loss)	`ProfitLoss`	$-52.00M	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$-52.00M	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$-186.00M	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$-186.00M	USD	1 Quarter
Less: Net income from discontinued operations attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-1.00M	USD	1 Quarter
Less: Net income from discontinued operations attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-1.00M	USD	1 Quarter
Less: Net income from discontinued operations attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$5.00M	USD	3 Qtrs
Less: Net income from discontinued operations attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$5.00M	USD	3 Qtrs
Less: Net income from discontinued operations attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$3.00M	USD	3 Qtrs
Less: Net income from discontinued operations attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$3.00M	USD	3 Qtrs
Less: Net income from discontinued operations attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$4.00M	USD	1 Quarter
Less: Net income from discontinued operations attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$4.00M	USD	1 Quarter
Net income (loss) attributable to MBIA Inc.	`NetIncomeLossAttributableToParentNetOfTax`	$-353.00M	USD	3 Qtrs
Net income (loss) attributable to MBIA Inc.	`NetIncomeLossAttributableToParentNetOfTax`	$-353.00M	USD	3 Qtrs
Net income (loss) attributable to MBIA Inc.	`NetIncomeLossAttributableToParentNetOfTax`	$-185.00M	USD	1 Quarter
Net income (loss) attributable to MBIA Inc.	`NetIncomeLossAttributableToParentNetOfTax`	$-185.00M	USD	1 Quarter
Net income (loss) attributable to MBIA Inc.	`NetIncomeLossAttributableToParentNetOfTax`	$-396.00M	USD	3 Qtrs
Net income (loss) attributable to MBIA Inc.	`NetIncomeLossAttributableToParentNetOfTax`	$-396.00M	USD	3 Qtrs
Net income (loss) attributable to MBIA Inc.	`NetIncomeLossAttributableToParentNetOfTax`	$-56.00M	USD	1 Quarter
Net income (loss) attributable to MBIA Inc.	`NetIncomeLossAttributableToParentNetOfTax`	$-56.00M	USD	1 Quarter
Continuing operations - basic	`IncomeLossFromContinuingOperationsPerBasicShare`	$-3.93	USD	1 Quarter
Continuing operations - basic	`IncomeLossFromContinuingOperationsPerBasicShare`	$-3.93	USD	1 Quarter
Continuing operations - basic	`IncomeLossFromContinuingOperationsPerBasicShare`	$-8.26	USD	3 Qtrs
Continuing operations - basic	`IncomeLossFromContinuingOperationsPerBasicShare`	$-8.26	USD	3 Qtrs
Continuing operations - basic	`IncomeLossFromContinuingOperationsPerBasicShare`	$-1.08	USD	1 Quarter
Continuing operations - basic	`IncomeLossFromContinuingOperationsPerBasicShare`	$-1.08	USD	1 Quarter
Continuing operations - basic	`IncomeLossFromContinuingOperationsPerBasicShare`	$-7.10	USD	3 Qtrs
Continuing operations - basic	`IncomeLossFromContinuingOperationsPerBasicShare`	$-7.10	USD	3 Qtrs
Continuing operations - diluted	`IncomeLossFromContinuingOperationsPerDilutedShare`	$-8.26	USD	3 Qtrs
Continuing operations - diluted	`IncomeLossFromContinuingOperationsPerDilutedShare`	$-8.26	USD	3 Qtrs
Continuing operations - diluted	`IncomeLossFromContinuingOperationsPerDilutedShare`	$-3.93	USD	1 Quarter
Continuing operations - diluted	`IncomeLossFromContinuingOperationsPerDilutedShare`	$-3.93	USD	1 Quarter
Continuing operations - diluted	`IncomeLossFromContinuingOperationsPerDilutedShare`	$-7.10	USD	3 Qtrs
Continuing operations - diluted	`IncomeLossFromContinuingOperationsPerDilutedShare`	$-7.10	USD	3 Qtrs
Continuing operations - diluted	`IncomeLossFromContinuingOperationsPerDilutedShare`	$-1.08	USD	1 Quarter
Continuing operations - diluted	`IncomeLossFromContinuingOperationsPerDilutedShare`	$-1.08	USD	1 Quarter
Discontinued operations - basic	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare`	$-0.11	USD	3 Qtrs
Discontinued operations - basic	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare`	$-0.11	USD	3 Qtrs
Discontinued operations - basic	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare`	$-0.01	USD	1 Quarter
Discontinued operations - basic	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare`	$-0.01	USD	1 Quarter
Discontinued operations - basic	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare`	$-0.10	USD	1 Quarter
Discontinued operations - basic	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare`	$-0.10	USD	1 Quarter
Discontinued operations - basic	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare`	$-0.15	USD	3 Qtrs
Discontinued operations - basic	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare`	$-0.15	USD	3 Qtrs
Discontinued operations - diluted	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare`	$-0.10	USD	1 Quarter
Discontinued operations - diluted	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare`	$-0.10	USD	1 Quarter
Discontinued operations - diluted	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare`	$-0.01	USD	1 Quarter
Discontinued operations - diluted	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare`	$-0.01	USD	1 Quarter
Discontinued operations - diluted	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare`	$-0.11	USD	3 Qtrs
Discontinued operations - diluted	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare`	$-0.11	USD	3 Qtrs
Discontinued operations - diluted	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare`	$-0.15	USD	3 Qtrs
Discontinued operations - diluted	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare`	$-0.15	USD	3 Qtrs
Net income (loss) per common share attributable to MBIA Inc. - basic	`EarningsPerShareBasic`	$-3.94	USD	1 Quarter
Net income (loss) per common share attributable to MBIA Inc. - basic	`EarningsPerShareBasic`	$-3.94	USD	1 Quarter
Net income (loss) per common share attributable to MBIA Inc. - basic	`EarningsPerShareBasic`	$-7.25	USD	3 Qtrs
Net income (loss) per common share attributable to MBIA Inc. - basic	`EarningsPerShareBasic`	$-7.25	USD	3 Qtrs
Net income (loss) per common share attributable to MBIA Inc. - basic	`EarningsPerShareBasic`	$-1.18	USD	1 Quarter
Net income (loss) per common share attributable to MBIA Inc. - basic	`EarningsPerShareBasic`	$-1.18	USD	1 Quarter
Net income (loss) per common share attributable to MBIA Inc. - basic	`EarningsPerShareBasic`	$-8.37	USD	3 Qtrs
Net income (loss) per common share attributable to MBIA Inc. - basic	`EarningsPerShareBasic`	$-8.37	USD	3 Qtrs
Net income (loss) per common share attributable to MBIA Inc. - diluted	`EarningsPerShareDiluted`	$-7.25	USD	3 Qtrs
Net income (loss) per common share attributable to MBIA Inc. - diluted	`EarningsPerShareDiluted`	$-7.25	USD	3 Qtrs
Net income (loss) per common share attributable to MBIA Inc. - diluted	`EarningsPerShareDiluted`	$-8.37	USD	3 Qtrs
Net income (loss) per common share attributable to MBIA Inc. - diluted	`EarningsPerShareDiluted`	$-8.37	USD	3 Qtrs
Net income (loss) per common share attributable to MBIA Inc. - diluted	`EarningsPerShareDiluted`	$-1.18	USD	1 Quarter
Net income (loss) per common share attributable to MBIA Inc. - diluted	`EarningsPerShareDiluted`	$-1.18	USD	1 Quarter
Net income (loss) per common share attributable to MBIA Inc. - diluted	`EarningsPerShareDiluted`	$-3.94	USD	1 Quarter
Net income (loss) per common share attributable to MBIA Inc. - diluted	`EarningsPerShareDiluted`	$-3.94	USD	1 Quarter
Basic	`WeightedAverageNumberOfSharesOutstandingBasic`	47.67M	shares	1 Quarter
Basic	`WeightedAverageNumberOfSharesOutstandingBasic`	47.67M	shares	1 Quarter
Basic	`WeightedAverageNumberOfSharesOutstandingBasic`	47.33M	shares	3 Qtrs
Basic	`WeightedAverageNumberOfSharesOutstandingBasic`	47.33M	shares	3 Qtrs
Basic	`WeightedAverageNumberOfSharesOutstandingBasic`	48.65M	shares	3 Qtrs
Basic	`WeightedAverageNumberOfSharesOutstandingBasic`	48.65M	shares	3 Qtrs
Basic	`WeightedAverageNumberOfSharesOutstandingBasic`	47.01M	shares	1 Quarter
Basic	`WeightedAverageNumberOfSharesOutstandingBasic`	47.01M	shares	1 Quarter
Diluted	`WeightedAverageNumberOfDilutedSharesOutstanding`	47.67M	shares	1 Quarter
Diluted	`WeightedAverageNumberOfDilutedSharesOutstanding`	47.67M	shares	1 Quarter
Diluted	`WeightedAverageNumberOfDilutedSharesOutstanding`	48.65M	shares	3 Qtrs
Diluted	`WeightedAverageNumberOfDilutedSharesOutstanding`	48.65M	shares	3 Qtrs
Diluted	`WeightedAverageNumberOfDilutedSharesOutstanding`	47.33M	shares	3 Qtrs
Diluted	`WeightedAverageNumberOfDilutedSharesOutstanding`	47.33M	shares	3 Qtrs
Diluted	`WeightedAverageNumberOfDilutedSharesOutstanding`	47.01M	shares	1 Quarter
Diluted	`WeightedAverageNumberOfDilutedSharesOutstanding`	47.01M	shares	1 Quarter

Cash Flow Statement 216 line items

Line Item	Tag	Value	Unit	Period
Premiums, fees and reimbursements received	`ProceedsFromInsurancePremiumsCollected`	$12.00M	USD	3 Qtrs
Premiums, fees and reimbursements received	`ProceedsFromInsurancePremiumsCollected`	$12.00M	USD	3 Qtrs
Premiums, fees and reimbursements received	`ProceedsFromInsurancePremiumsCollected`	$11.00M	USD	3 Qtrs
Premiums, fees and reimbursements received	`ProceedsFromInsurancePremiumsCollected`	$11.00M	USD	3 Qtrs
Investment income received	`ProceedsFromInterestAndDividendsReceived`	$77.00M	USD	3 Qtrs
Investment income received	`ProceedsFromInterestAndDividendsReceived`	$77.00M	USD	3 Qtrs
Investment income received	`ProceedsFromInterestAndDividendsReceived`	$44.00M	USD	3 Qtrs
Investment income received	`ProceedsFromInterestAndDividendsReceived`	$44.00M	USD	3 Qtrs
Financial guarantee losses and loss adjustment expenses paid	`PaymentsForLossesAndLossAdjustmentExpense`	$210.00M	USD	3 Qtrs
Financial guarantee losses and loss adjustment expenses paid	`PaymentsForLossesAndLossAdjustmentExpense`	$210.00M	USD	3 Qtrs
Financial guarantee losses and loss adjustment expenses paid	`PaymentsForLossesAndLossAdjustmentExpense`	$151.00M	USD	3 Qtrs
Financial guarantee losses and loss adjustment expenses paid	`PaymentsForLossesAndLossAdjustmentExpense`	$151.00M	USD	3 Qtrs
Proceeds from recoveries and reinsurance, net of salvage paid to reinsurers	`ProceedsFromRecoveriesAndReinsuranceNetOfSalvagePaidToReinsurers`	$10.00M	USD	3 Qtrs
Proceeds from recoveries and reinsurance, net of salvage paid to reinsurers	`ProceedsFromRecoveriesAndReinsuranceNetOfSalvagePaidToReinsurers`	$10.00M	USD	3 Qtrs
Proceeds from recoveries and reinsurance, net of salvage paid to reinsurers	`ProceedsFromRecoveriesAndReinsuranceNetOfSalvagePaidToReinsurers`	$11.00M	USD	3 Qtrs
Proceeds from recoveries and reinsurance, net of salvage paid to reinsurers	`ProceedsFromRecoveriesAndReinsuranceNetOfSalvagePaidToReinsurers`	$11.00M	USD	3 Qtrs
Operating expenses paid and other operating	`PaymentsForOtherOperatingActivities`	$55.00M	USD	3 Qtrs
Operating expenses paid and other operating	`PaymentsForOtherOperatingActivities`	$55.00M	USD	3 Qtrs
Operating expenses paid and other operating	`PaymentsForOtherOperatingActivities`	$42.00M	USD	3 Qtrs
Operating expenses paid and other operating	`PaymentsForOtherOperatingActivities`	$42.00M	USD	3 Qtrs
Other proceeds from consolidated variable interest entities	`OtherProceedsFromConsolidatedVariableInterestEntitiesOperatingActivities`	$28.00M	USD	3 Qtrs
Other proceeds from consolidated variable interest entities	`OtherProceedsFromConsolidatedVariableInterestEntitiesOperatingActivities`	$28.00M	USD	3 Qtrs
Other proceeds from consolidated variable interest entities	`OtherProceedsFromConsolidatedVariableInterestEntitiesOperatingActivities`	$2.00M	USD	3 Qtrs
Other proceeds from consolidated variable interest entities	`OtherProceedsFromConsolidatedVariableInterestEntitiesOperatingActivities`	$2.00M	USD	3 Qtrs
Interest paid, net of interest converted to principal	`InterestPaidNet`	$49.00M	USD	3 Qtrs
Interest paid, net of interest converted to principal	`InterestPaidNet`	$49.00M	USD	3 Qtrs
Interest paid, net of interest converted to principal	`InterestPaidNet`	$46.00M	USD	3 Qtrs
Interest paid, net of interest converted to principal	`InterestPaidNet`	$46.00M	USD	3 Qtrs
Cash (used) provided by discontinued operations	`CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations`	$-7.00M	USD	3 Qtrs
Cash (used) provided by discontinued operations	`CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations`	$-7.00M	USD	3 Qtrs
Cash (used) provided by discontinued operations	`CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations`	$-7.00M	USD	3 Qtrs
Cash (used) provided by discontinued operations	`CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations`	$-7.00M	USD	3 Qtrs
Net cash provided (used) by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$-179.00M	USD	3 Qtrs
Net cash provided (used) by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$-179.00M	USD	3 Qtrs
Net cash provided (used) by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$-193.00M	USD	3 Qtrs
Net cash provided (used) by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$-193.00M	USD	3 Qtrs
Purchases of available-for-sale investments	`PaymentsToAcquireMarketableSecurities`	$352.00M	USD	3 Qtrs
Purchases of available-for-sale investments	`PaymentsToAcquireMarketableSecurities`	$352.00M	USD	3 Qtrs
Purchases of available-for-sale investments	`PaymentsToAcquireMarketableSecurities`	$159.00M	USD	3 Qtrs
Purchases of available-for-sale investments	`PaymentsToAcquireMarketableSecurities`	$159.00M	USD	3 Qtrs
Sales of available-for-sale investments	`ProceedsFromSaleOfAvailableForSaleSecuritiesDebt`	$45.00M	USD	1 Quarter
Sales of available-for-sale investments	`ProceedsFromSaleOfAvailableForSaleSecuritiesDebt`	$45.00M	USD	1 Quarter
Sales of available-for-sale investments	`ProceedsFromSaleOfAvailableForSaleSecuritiesDebt`	$380.00M	USD	3 Qtrs
Sales of available-for-sale investments	`ProceedsFromSaleOfAvailableForSaleSecuritiesDebt`	$380.00M	USD	3 Qtrs
Sales of available-for-sale investments	`ProceedsFromSaleOfAvailableForSaleSecuritiesDebt`	$108.00M	USD	1 Quarter
Sales of available-for-sale investments	`ProceedsFromSaleOfAvailableForSaleSecuritiesDebt`	$108.00M	USD	1 Quarter
Sales of available-for-sale investments	`ProceedsFromSaleOfAvailableForSaleSecuritiesDebt`	$100.00M	USD	3 Qtrs
Sales of available-for-sale investments	`ProceedsFromSaleOfAvailableForSaleSecuritiesDebt`	$100.00M	USD	3 Qtrs
Paydowns, maturities and other proceeds of available-for-sale investments	`ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities`	$187.00M	USD	3 Qtrs
Paydowns, maturities and other proceeds of available-for-sale investments	`ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities`	$187.00M	USD	3 Qtrs
Paydowns, maturities and other proceeds of available-for-sale investments	`ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities`	$141.00M	USD	3 Qtrs
Paydowns, maturities and other proceeds of available-for-sale investments	`ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities`	$141.00M	USD	3 Qtrs
Purchases of investments at fair value	`PaymentsToAcquireTradingSecuritiesHeldforinvestment`	$92.00M	USD	3 Qtrs
Purchases of investments at fair value	`PaymentsToAcquireTradingSecuritiesHeldforinvestment`	$92.00M	USD	3 Qtrs
Purchases of investments at fair value	`PaymentsToAcquireTradingSecuritiesHeldforinvestment`	$61.00M	USD	3 Qtrs
Purchases of investments at fair value	`PaymentsToAcquireTradingSecuritiesHeldforinvestment`	$61.00M	USD	3 Qtrs
Sales, paydowns, maturities and other proceeds of investments at fair value	`ProceedsFromSaleOfTradingSecuritiesHeldforinvestment`	$251.00M	USD	3 Qtrs
Sales, paydowns, maturities and other proceeds of investments at fair value	`ProceedsFromSaleOfTradingSecuritiesHeldforinvestment`	$251.00M	USD	3 Qtrs
Sales, paydowns, maturities and other proceeds of investments at fair value	`ProceedsFromSaleOfTradingSecuritiesHeldforinvestment`	$173.00M	USD	3 Qtrs
Sales, paydowns, maturities and other proceeds of investments at fair value	`ProceedsFromSaleOfTradingSecuritiesHeldforinvestment`	$173.00M	USD	3 Qtrs
Sales, paydowns and maturities (purchases) of short-term investments, net	`PaymentsForProceedsFromShortTermInvestments`	$-96.00M	USD	3 Qtrs
Sales, paydowns and maturities (purchases) of short-term investments, net	`PaymentsForProceedsFromShortTermInvestments`	$-96.00M	USD	3 Qtrs
Sales, paydowns and maturities (purchases) of short-term investments, net	`PaymentsForProceedsFromShortTermInvestments`	$86.00M	USD	3 Qtrs
Sales, paydowns and maturities (purchases) of short-term investments, net	`PaymentsForProceedsFromShortTermInvestments`	$86.00M	USD	3 Qtrs
Paydowns and maturities of loans receivable	`ProceedsFromSaleAndCollectionOfLoansReceivable`	$7.00M	USD	3 Qtrs
Paydowns and maturities of loans receivable	`ProceedsFromSaleAndCollectionOfLoansReceivable`	$7.00M	USD	3 Qtrs
Paydowns and maturities of loans receivable	`ProceedsFromSaleAndCollectionOfLoansReceivable`	$5.00M	USD	3 Qtrs
Paydowns and maturities of loans receivable	`ProceedsFromSaleAndCollectionOfLoansReceivable`	$5.00M	USD	3 Qtrs
Deconsolidation of variable interest entities	`PaymentToDeconsolidationOfVariableInterestEntity`	-	USD	3 Qtrs
Deconsolidation of variable interest entities	`PaymentToDeconsolidationOfVariableInterestEntity`	-	USD	3 Qtrs
Deconsolidation of variable interest entities	`PaymentToDeconsolidationOfVariableInterestEntity`	$2.00M	USD	3 Qtrs
Deconsolidation of variable interest entities	`PaymentToDeconsolidationOfVariableInterestEntity`	$2.00M	USD	3 Qtrs
(Payments) proceeds for derivative settlements	`PaymentsForProceedsFromDerivativeInstrumentInvestingActivities`	$8.00M	USD	3 Qtrs
(Payments) proceeds for derivative settlements	`PaymentsForProceedsFromDerivativeInstrumentInvestingActivities`	$8.00M	USD	3 Qtrs
(Payments) proceeds for derivative settlements	`PaymentsForProceedsFromDerivativeInstrumentInvestingActivities`	$1.00M	USD	3 Qtrs
(Payments) proceeds for derivative settlements	`PaymentsForProceedsFromDerivativeInstrumentInvestingActivities`	$1.00M	USD	3 Qtrs
Proceeds (payments) from discontinued operations	`CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations`	$19.00M	USD	3 Qtrs
Proceeds (payments) from discontinued operations	`CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations`	$19.00M	USD	3 Qtrs
Proceeds (payments) from discontinued operations	`CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations`	$-9.00M	USD	3 Qtrs
Proceeds (payments) from discontinued operations	`CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations`	$-9.00M	USD	3 Qtrs
Net cash provided (used) by investing activities	`NetCashProvidedByUsedInInvestingActivities`	$282.00M	USD	3 Qtrs
Net cash provided (used) by investing activities	`NetCashProvidedByUsedInInvestingActivities`	$282.00M	USD	3 Qtrs
Net cash provided (used) by investing activities	`NetCashProvidedByUsedInInvestingActivities`	$307.00M	USD	3 Qtrs
Net cash provided (used) by investing activities	`NetCashProvidedByUsedInInvestingActivities`	$307.00M	USD	3 Qtrs
Proceeds from investment agreements	`ProceedsFromIssuanceOfOtherLongTermDebt`	-	USD	3 Qtrs
Proceeds from investment agreements	`ProceedsFromIssuanceOfOtherLongTermDebt`	-	USD	3 Qtrs
Proceeds from investment agreements	`ProceedsFromIssuanceOfOtherLongTermDebt`	$6.00M	USD	3 Qtrs
Proceeds from investment agreements	`ProceedsFromIssuanceOfOtherLongTermDebt`	$6.00M	USD	3 Qtrs
Principal paydowns of investment agreements	`RepaymentsOfOtherLongTermDebt`	$5.00M	USD	3 Qtrs
Principal paydowns of investment agreements	`RepaymentsOfOtherLongTermDebt`	$5.00M	USD	3 Qtrs
Principal paydowns of investment agreements	`RepaymentsOfOtherLongTermDebt`	$4.00M	USD	3 Qtrs
Principal paydowns of investment agreements	`RepaymentsOfOtherLongTermDebt`	$4.00M	USD	3 Qtrs
Principal paydowns of medium-term notes	`RepaymentsOfMediumTermNotes`	$10.00M	USD	3 Qtrs
Principal paydowns of medium-term notes	`RepaymentsOfMediumTermNotes`	$10.00M	USD	3 Qtrs
Principal paydowns of medium-term notes	`RepaymentsOfMediumTermNotes`	$62.00M	USD	3 Qtrs
Principal paydowns of medium-term notes	`RepaymentsOfMediumTermNotes`	$62.00M	USD	3 Qtrs
Proceeds from variable interest entity debt	`ProceedsFromVariableInterestEntityNotes`	$62.00M	USD	3 Qtrs
Proceeds from variable interest entity debt	`ProceedsFromVariableInterestEntityNotes`	$62.00M	USD	3 Qtrs
Proceeds from variable interest entity debt	`ProceedsFromVariableInterestEntityNotes`	$2.00M	USD	3 Qtrs
Proceeds from variable interest entity debt	`ProceedsFromVariableInterestEntityNotes`	$2.00M	USD	3 Qtrs
Principal paydowns/redemptions of variable interest entity debt	`ProceedsFromRepaymentsOfNotesPayable`	$-58.00M	USD	3 Qtrs
Principal paydowns/redemptions of variable interest entity debt	`ProceedsFromRepaymentsOfNotesPayable`	$-58.00M	USD	3 Qtrs
Principal paydowns/redemptions of variable interest entity debt	`ProceedsFromRepaymentsOfNotesPayable`	$-141.00M	USD	3 Qtrs
Principal paydowns/redemptions of variable interest entity debt	`ProceedsFromRepaymentsOfNotesPayable`	$-141.00M	USD	3 Qtrs
Principal paydowns of long-term debt	`RepaymentOfPaydownsOfLongtermDebt`	$1.00M	USD	3 Qtrs
Principal paydowns of long-term debt	`RepaymentOfPaydownsOfLongtermDebt`	$1.00M	USD	3 Qtrs
Principal paydowns of long-term debt	`RepaymentOfPaydownsOfLongtermDebt`	-	USD	3 Qtrs
Principal paydowns of long-term debt	`RepaymentOfPaydownsOfLongtermDebt`	-	USD	3 Qtrs
Purchases of treasury stock	`PaymentsForRepurchaseOfCommonStock`	$35.00M	USD	3 Qtrs
Purchases of treasury stock	`PaymentsForRepurchaseOfCommonStock`	$35.00M	USD	3 Qtrs
Purchases of treasury stock	`PaymentsForRepurchaseOfCommonStock`	$4.00M	USD	3 Qtrs
Purchases of treasury stock	`PaymentsForRepurchaseOfCommonStock`	$4.00M	USD	3 Qtrs
Cash provided (used) by discontinued operations	`CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations`	$5.00M	USD	3 Qtrs
Cash provided (used) by discontinued operations	`CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations`	$5.00M	USD	3 Qtrs
Cash provided (used) by discontinued operations	`CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations`	$-9.00M	USD	3 Qtrs
Cash provided (used) by discontinued operations	`CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations`	$-9.00M	USD	3 Qtrs
Net cash provided (used) by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-137.00M	USD	3 Qtrs
Net cash provided (used) by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-137.00M	USD	3 Qtrs
Net cash provided (used) by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-117.00M	USD	3 Qtrs
Net cash provided (used) by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-117.00M	USD	3 Qtrs
Net increase (decrease) in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-3.00M	USD	3 Qtrs
Net increase (decrease) in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-3.00M	USD	3 Qtrs
Net increase (decrease) in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-34.00M	USD	3 Qtrs
Net increase (decrease) in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-34.00M	USD	3 Qtrs
Cash and cash equivalents - beginning of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$108.00M	USD	Point-in-time
Cash and cash equivalents - beginning of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$108.00M	USD	Point-in-time
Cash and cash equivalents - beginning of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$78.00M	USD	Point-in-time
Cash and cash equivalents - beginning of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$78.00M	USD	Point-in-time
Cash and cash equivalents - beginning of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$74.00M	USD	Point-in-time
Cash and cash equivalents - beginning of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$74.00M	USD	Point-in-time
Cash and cash equivalents - beginning of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$75.00M	USD	Point-in-time
Cash and cash equivalents - beginning of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$75.00M	USD	Point-in-time
Cash and cash equivalents - end of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$108.00M	USD	Point-in-time
Cash and cash equivalents - end of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$108.00M	USD	Point-in-time
Cash and cash equivalents - end of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$78.00M	USD	Point-in-time
Cash and cash equivalents - end of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$78.00M	USD	Point-in-time
Cash and cash equivalents - end of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$74.00M	USD	Point-in-time
Cash and cash equivalents - end of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$74.00M	USD	Point-in-time
Cash and cash equivalents - end of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$75.00M	USD	Point-in-time
Cash and cash equivalents - end of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$75.00M	USD	Point-in-time
Net income (loss)	`ProfitLoss`	$-393.00M	USD	3 Qtrs
Net income (loss)	`ProfitLoss`	$-393.00M	USD	3 Qtrs
Net income (loss)	`ProfitLoss`	$-348.00M	USD	3 Qtrs
Net income (loss)	`ProfitLoss`	$-348.00M	USD	3 Qtrs
Net income (loss)	`ProfitLoss`	$-52.00M	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$-52.00M	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$-186.00M	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$-186.00M	USD	1 Quarter
Income (loss) from discontinued operations, net of income taxes	`IncomeLossFromDiscontinuedOperationsNetOfIncomeTax`	$2.00M	USD	3 Qtrs
Income (loss) from discontinued operations, net of income taxes	`IncomeLossFromDiscontinuedOperationsNetOfIncomeTax`	$2.00M	USD	3 Qtrs
Income (loss) from discontinued operations, net of income taxes	`IncomeLossFromDiscontinuedOperationsNetOfIncomeTax`	$2.00M	USD	3 Qtrs
Income (loss) from discontinued operations, net of income taxes	`IncomeLossFromDiscontinuedOperationsNetOfIncomeTax`	$2.00M	USD	3 Qtrs
Income (loss) from continuing operations	`IncomeLossFromContinuingOperations`	$-51.00M	USD	1 Quarter
Income (loss) from continuing operations	`IncomeLossFromContinuingOperations`	$-51.00M	USD	1 Quarter
Income (loss) from continuing operations	`IncomeLossFromContinuingOperations`	$-346.00M	USD	3 Qtrs
Income (loss) from continuing operations	`IncomeLossFromContinuingOperations`	$-346.00M	USD	3 Qtrs
Income (loss) from continuing operations	`IncomeLossFromContinuingOperations`	$-185.00M	USD	1 Quarter
Income (loss) from continuing operations	`IncomeLossFromContinuingOperations`	$-185.00M	USD	1 Quarter
Income (loss) from continuing operations	`IncomeLossFromContinuingOperations`	$-391.00M	USD	3 Qtrs
Income (loss) from continuing operations	`IncomeLossFromContinuingOperations`	$-391.00M	USD	3 Qtrs
Unearned premium revenue	`IncreaseDecreaseInUnearnedPremiums`	$-24.00M	USD	3 Qtrs
Unearned premium revenue	`IncreaseDecreaseInUnearnedPremiums`	$-24.00M	USD	3 Qtrs
Unearned premium revenue	`IncreaseDecreaseInUnearnedPremiums`	$-26.00M	USD	3 Qtrs
Unearned premium revenue	`IncreaseDecreaseInUnearnedPremiums`	$-26.00M	USD	3 Qtrs
Loss and loss adjustment expense reserves	`IncreaseDecreaseInLiabilityForClaimsAndClaimsAdjustmentExpenseReserve`	$1.00M	USD	3 Qtrs
Loss and loss adjustment expense reserves	`IncreaseDecreaseInLiabilityForClaimsAndClaimsAdjustmentExpenseReserve`	$1.00M	USD	3 Qtrs
Loss and loss adjustment expense reserves	`IncreaseDecreaseInLiabilityForClaimsAndClaimsAdjustmentExpenseReserve`	$51.00M	USD	3 Qtrs
Loss and loss adjustment expense reserves	`IncreaseDecreaseInLiabilityForClaimsAndClaimsAdjustmentExpenseReserve`	$51.00M	USD	3 Qtrs
Insurance loss recoverable	`IncreaseDecreaseInInsuranceLossRecoverable`	$40.00M	USD	3 Qtrs
Insurance loss recoverable	`IncreaseDecreaseInInsuranceLossRecoverable`	$40.00M	USD	3 Qtrs
Insurance loss recoverable	`IncreaseDecreaseInInsuranceLossRecoverable`	$19.00M	USD	3 Qtrs
Insurance loss recoverable	`IncreaseDecreaseInInsuranceLossRecoverable`	$19.00M	USD	3 Qtrs
Accrued interest payable	`IncreaseDecreaseInInterestPayableNet`	$118.00M	USD	3 Qtrs
Accrued interest payable	`IncreaseDecreaseInInterestPayableNet`	$118.00M	USD	3 Qtrs
Accrued interest payable	`IncreaseDecreaseInInterestPayableNet`	$121.00M	USD	3 Qtrs
Accrued interest payable	`IncreaseDecreaseInInterestPayableNet`	$121.00M	USD	3 Qtrs
Other assets and liabilities	`IncreaseDecreaseInOtherOperatingLiabilities`	$4.00M	USD	3 Qtrs
Other assets and liabilities	`IncreaseDecreaseInOtherOperatingLiabilities`	$4.00M	USD	3 Qtrs
Other assets and liabilities	`IncreaseDecreaseInOtherOperatingLiabilities`	$-11.00M	USD	3 Qtrs
Other assets and liabilities	`IncreaseDecreaseInOtherOperatingLiabilities`	$-11.00M	USD	3 Qtrs
Net realized investment gains (losses)	`RealizedInvestmentGainsLosses`	$-3.00M	USD	3 Qtrs
Net realized investment gains (losses)	`RealizedInvestmentGainsLosses`	$-3.00M	USD	3 Qtrs
Net realized investment gains (losses)	`RealizedInvestmentGainsLosses`	$-23.00M	USD	3 Qtrs
Net realized investment gains (losses)	`RealizedInvestmentGainsLosses`	$-23.00M	USD	3 Qtrs
Net (gains) losses on financial instruments at fair value and foreign exchange	`IncreaseDecreaseInNetGainsLossesOnFinancialInstrumentsAtFairValueAndForeignExchange`	$-27.00M	USD	3 Qtrs
Net (gains) losses on financial instruments at fair value and foreign exchange	`IncreaseDecreaseInNetGainsLossesOnFinancialInstrumentsAtFairValueAndForeignExchange`	$-27.00M	USD	3 Qtrs
Net (gains) losses on financial instruments at fair value and foreign exchange	`IncreaseDecreaseInNetGainsLossesOnFinancialInstrumentsAtFairValueAndForeignExchange`	$-79.00M	USD	3 Qtrs
Net (gains) losses on financial instruments at fair value and foreign exchange	`IncreaseDecreaseInNetGainsLossesOnFinancialInstrumentsAtFairValueAndForeignExchange`	$-79.00M	USD	3 Qtrs
Other net realized (gains) losses	`IncreaseDecreaseInOtherNetRealizedGainsLosses`	$29.00M	USD	3 Qtrs
Other net realized (gains) losses	`IncreaseDecreaseInOtherNetRealizedGainsLosses`	$29.00M	USD	3 Qtrs
Other net realized (gains) losses	`IncreaseDecreaseInOtherNetRealizedGainsLosses`	$7.00M	USD	3 Qtrs
Other net realized (gains) losses	`IncreaseDecreaseInOtherNetRealizedGainsLosses`	$7.00M	USD	3 Qtrs
Other operating	`OtherNoncashIncomeExpense`	$7.00M	USD	3 Qtrs
Other operating	`OtherNoncashIncomeExpense`	$7.00M	USD	3 Qtrs
Other operating	`OtherNoncashIncomeExpense`	$-29.00M	USD	3 Qtrs
Other operating	`OtherNoncashIncomeExpense`	$-29.00M	USD	3 Qtrs
Total adjustments to income (loss) from continuing operations	`AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities`	$212.00M	USD	3 Qtrs
Total adjustments to income (loss) from continuing operations	`AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities`	$212.00M	USD	3 Qtrs
Total adjustments to income (loss) from continuing operations	`AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities`	$153.00M	USD	3 Qtrs
Total adjustments to income (loss) from continuing operations	`AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities`	$153.00M	USD	3 Qtrs
Net cash provided (used) by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$-179.00M	USD	3 Qtrs
Net cash provided (used) by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$-179.00M	USD	3 Qtrs
Net cash provided (used) by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$-193.00M	USD	3 Qtrs
Net cash provided (used) by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$-193.00M	USD	3 Qtrs
Loans receivable disposed of a variable interest entity	`LoansReceivableDisposedOfVariableInterestEntity`	$28.00M	USD	3 Qtrs
Loans receivable disposed of a variable interest entity	`LoansReceivableDisposedOfVariableInterestEntity`	$28.00M	USD	3 Qtrs
Loans receivable disposed of a variable interest entity	`LoansReceivableDisposedOfVariableInterestEntity`	-	USD	3 Qtrs
Loans receivable disposed of a variable interest entity	`LoansReceivableDisposedOfVariableInterestEntity`	-	USD	3 Qtrs
Other investments, received from sale of net assets held for sale	`OtherInvestmentsReceivedFromSaleOfNetAssetsHeldForSale`	$3.00M	USD	3 Qtrs
Other investments, received from sale of net assets held for sale	`OtherInvestmentsReceivedFromSaleOfNetAssetsHeldForSale`	$3.00M	USD	3 Qtrs
Other investments, received from sale of net assets held for sale	`OtherInvestmentsReceivedFromSaleOfNetAssetsHeldForSale`	-	USD	3 Qtrs
Other investments, received from sale of net assets held for sale	`OtherInvestmentsReceivedFromSaleOfNetAssetsHeldForSale`	-	USD	3 Qtrs
Variable interest entity notes disposed of upon deconsolidation	`VariableInterestEntityNotesDisposedOfUponDeconsolidation`	-	USD	3 Qtrs
Variable interest entity notes disposed of upon deconsolidation	`VariableInterestEntityNotesDisposedOfUponDeconsolidation`	-	USD	3 Qtrs
Variable interest entity notes disposed of upon deconsolidation	`VariableInterestEntityNotesDisposedOfUponDeconsolidation`	$22.00M	USD	3 Qtrs
Variable interest entity notes disposed of upon deconsolidation	`VariableInterestEntityNotesDisposedOfUponDeconsolidation`	$22.00M	USD	3 Qtrs

Stockholders Equity 44 line items

Line Item	Tag	Value	Unit	Period
Total equity balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$-1.65B	USD	Point-in-time
Total equity balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$-1.65B	USD	Point-in-time
Total equity balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$-1.23B	USD	Point-in-time
Total equity balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$-1.23B	USD	Point-in-time
Total equity balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$-1.99B	USD	Point-in-time
Total equity balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$-1.99B	USD	Point-in-time
Balance (in common stock shares)	`CommonStockSharesIssued`	283.19M	shares	Point-in-time
Balance (in common stock shares)	`CommonStockSharesIssued`	283.19M	shares	Point-in-time
Balance (in common stock shares)	`CommonStockSharesIssued`	283.19M	shares	Point-in-time
Balance (in common stock shares)	`CommonStockSharesIssued`	283.19M	shares	Point-in-time
Balance (in treasury stock shares)	`TreasuryStockCommonShares`	232.16M	shares	Point-in-time
Balance (in treasury stock shares)	`TreasuryStockCommonShares`	232.16M	shares	Point-in-time
Balance (in treasury stock shares)	`TreasuryStockCommonShares`	232.32M	shares	Point-in-time
Balance (in treasury stock shares)	`TreasuryStockCommonShares`	232.32M	shares	Point-in-time
Net income (loss) attributable to MBIA Inc.	`NetIncomeLoss`	$-185.00M	USD	1 Quarter
Net income (loss) attributable to MBIA Inc.	`NetIncomeLoss`	$-185.00M	USD	1 Quarter
Net income (loss) attributable to MBIA Inc.	`NetIncomeLoss`	$-56.00M	USD	1 Quarter
Net income (loss) attributable to MBIA Inc.	`NetIncomeLoss`	$-56.00M	USD	1 Quarter
Net income (loss) attributable to MBIA Inc.	`NetIncomeLoss`	$-353.00M	USD	3 Qtrs
Net income (loss) attributable to MBIA Inc.	`NetIncomeLoss`	$-353.00M	USD	3 Qtrs
Net income (loss) attributable to MBIA Inc.	`NetIncomeLoss`	$-396.00M	USD	3 Qtrs
Net income (loss) attributable to MBIA Inc.	`NetIncomeLoss`	$-396.00M	USD	3 Qtrs
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$-50.00M	USD	1 Quarter
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$-50.00M	USD	1 Quarter
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$51.00M	USD	3 Qtrs
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$51.00M	USD	3 Qtrs
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$49.00M	USD	1 Quarter
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$49.00M	USD	1 Quarter
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$20.00M	USD	3 Qtrs
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$20.00M	USD	3 Qtrs
Total equity balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$-1.65B	USD	Point-in-time
Total equity balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$-1.65B	USD	Point-in-time
Total equity balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$-1.23B	USD	Point-in-time
Total equity balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$-1.23B	USD	Point-in-time
Total equity balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$-1.99B	USD	Point-in-time
Total equity balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$-1.99B	USD	Point-in-time
Balance (in treasury stock shares)	`TreasuryStockCommonShares`	232.16M	shares	Point-in-time
Balance (in treasury stock shares)	`TreasuryStockCommonShares`	232.16M	shares	Point-in-time
Balance (in treasury stock shares)	`TreasuryStockCommonShares`	232.32M	shares	Point-in-time
Balance (in treasury stock shares)	`TreasuryStockCommonShares`	232.32M	shares	Point-in-time
Balance (in preferred stock shares)	`PreferredStockSharesIssued`	0.00	shares	Point-in-time
Balance (in preferred stock shares)	`PreferredStockSharesIssued`	0.00	shares	Point-in-time
Balance (in preferred stock shares)	`PreferredStockSharesIssued`	0.00	shares	Point-in-time
Balance (in preferred stock shares)	`PreferredStockSharesIssued`	0.00	shares	Point-in-time

Comprehensive Income 56 line items

Line Item	Tag	Value	Unit	Period
Net income (loss) attributable to MBIA Inc.	`NetIncomeLoss`	$-185.00M	USD	1 Quarter
Net income (loss) attributable to MBIA Inc.	`NetIncomeLoss`	$-185.00M	USD	1 Quarter
Net income (loss) attributable to MBIA Inc.	`NetIncomeLoss`	$-56.00M	USD	1 Quarter
Net income (loss) attributable to MBIA Inc.	`NetIncomeLoss`	$-56.00M	USD	1 Quarter
Net income (loss) attributable to MBIA Inc.	`NetIncomeLoss`	$-353.00M	USD	3 Qtrs
Net income (loss) attributable to MBIA Inc.	`NetIncomeLoss`	$-353.00M	USD	3 Qtrs
Net income (loss) attributable to MBIA Inc.	`NetIncomeLoss`	$-396.00M	USD	3 Qtrs
Net income (loss) attributable to MBIA Inc.	`NetIncomeLoss`	$-396.00M	USD	3 Qtrs
Unrealized gains (losses) arising during the period	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax`	$-65.00M	USD	1 Quarter
Unrealized gains (losses) arising during the period	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax`	$-65.00M	USD	1 Quarter
Unrealized gains (losses) arising during the period	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax`	$18.00M	USD	3 Qtrs
Unrealized gains (losses) arising during the period	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax`	$18.00M	USD	3 Qtrs
Unrealized gains (losses) arising during the period	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax`	$-37.00M	USD	3 Qtrs
Unrealized gains (losses) arising during the period	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax`	$-37.00M	USD	3 Qtrs
Unrealized gains (losses) arising during the period	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax`	$44.00M	USD	1 Quarter
Unrealized gains (losses) arising during the period	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax`	$44.00M	USD	1 Quarter
Reclassification adjustments for (gains) losses included in net income (loss)	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax`	$-3.00M	USD	1 Quarter
Reclassification adjustments for (gains) losses included in net income (loss)	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax`	$-3.00M	USD	1 Quarter
Reclassification adjustments for (gains) losses included in net income (loss)	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax`	$-16.00M	USD	3 Qtrs
Reclassification adjustments for (gains) losses included in net income (loss)	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax`	$-16.00M	USD	3 Qtrs
Reclassification adjustments for (gains) losses included in net income (loss)	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax`	$-2.00M	USD	3 Qtrs
Reclassification adjustments for (gains) losses included in net income (loss)	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax`	$-2.00M	USD	3 Qtrs
Reclassification adjustments for (gains) losses included in net income (loss)	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax`	-	USD	1 Quarter
Reclassification adjustments for (gains) losses included in net income (loss)	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax`	-	USD	1 Quarter
Unrealized gains (losses) arising during the period	`OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionUnrealizedGainLossArisingDuringPeriodBeforeTax`	$-4.00M	USD	3 Qtrs
Unrealized gains (losses) arising during the period	`OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionUnrealizedGainLossArisingDuringPeriodBeforeTax`	$-4.00M	USD	3 Qtrs
Unrealized gains (losses) arising during the period	`OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionUnrealizedGainLossArisingDuringPeriodBeforeTax`	$3.00M	USD	3 Qtrs
Unrealized gains (losses) arising during the period	`OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionUnrealizedGainLossArisingDuringPeriodBeforeTax`	$3.00M	USD	3 Qtrs
Unrealized gains (losses) arising during the period	`OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionUnrealizedGainLossArisingDuringPeriodBeforeTax`	$5.00M	USD	1 Quarter
Unrealized gains (losses) arising during the period	`OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionUnrealizedGainLossArisingDuringPeriodBeforeTax`	$5.00M	USD	1 Quarter
Unrealized gains (losses) arising during the period	`OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionUnrealizedGainLossArisingDuringPeriodBeforeTax`	$1.00M	USD	1 Quarter
Unrealized gains (losses) arising during the period	`OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionUnrealizedGainLossArisingDuringPeriodBeforeTax`	$1.00M	USD	1 Quarter
Reclassification adjustments for (gains) losses included in net income (loss)	`OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionReclassificationAdjustmentFromAociForDerecognitionBeforeTax`	$-11.00M	USD	1 Quarter
Reclassification adjustments for (gains) losses included in net income (loss)	`OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionReclassificationAdjustmentFromAociForDerecognitionBeforeTax`	$-11.00M	USD	1 Quarter
Reclassification adjustments for (gains) losses included in net income (loss)	`OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionReclassificationAdjustmentFromAociForDerecognitionBeforeTax`	$-28.00M	USD	3 Qtrs
Reclassification adjustments for (gains) losses included in net income (loss)	`OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionReclassificationAdjustmentFromAociForDerecognitionBeforeTax`	$-28.00M	USD	3 Qtrs
Reclassification adjustments for (gains) losses included in net income (loss)	`OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionReclassificationAdjustmentFromAociForDerecognitionBeforeTax`	-	USD	1 Quarter
Reclassification adjustments for (gains) losses included in net income (loss)	`OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionReclassificationAdjustmentFromAociForDerecognitionBeforeTax`	-	USD	1 Quarter
Reclassification adjustments for (gains) losses included in net income (loss)	`OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionReclassificationAdjustmentFromAociForDerecognitionBeforeTax`	$-45.00M	USD	3 Qtrs
Reclassification adjustments for (gains) losses included in net income (loss)	`OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionReclassificationAdjustmentFromAociForDerecognitionBeforeTax`	$-45.00M	USD	3 Qtrs
Total other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$-50.00M	USD	1 Quarter
Total other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$-50.00M	USD	1 Quarter
Total other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$51.00M	USD	3 Qtrs
Total other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$51.00M	USD	3 Qtrs
Total other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$49.00M	USD	1 Quarter
Total other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$49.00M	USD	1 Quarter
Total other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$20.00M	USD	3 Qtrs
Total other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$20.00M	USD	3 Qtrs
Comprehensive income (loss) attributable to MBIA Inc.	`ComprehensiveIncomeNetOfTax`	$-235.00M	USD	1 Quarter
Comprehensive income (loss) attributable to MBIA Inc.	`ComprehensiveIncomeNetOfTax`	$-235.00M	USD	1 Quarter
Comprehensive income (loss) attributable to MBIA Inc.	`ComprehensiveIncomeNetOfTax`	$-345.00M	USD	3 Qtrs
Comprehensive income (loss) attributable to MBIA Inc.	`ComprehensiveIncomeNetOfTax`	$-345.00M	USD	3 Qtrs
Comprehensive income (loss) attributable to MBIA Inc.	`ComprehensiveIncomeNetOfTax`	$-7.00M	USD	1 Quarter
Comprehensive income (loss) attributable to MBIA Inc.	`ComprehensiveIncomeNetOfTax`	$-7.00M	USD	1 Quarter
Comprehensive income (loss) attributable to MBIA Inc.	`ComprehensiveIncomeNetOfTax`	$-333.00M	USD	3 Qtrs
Comprehensive income (loss) attributable to MBIA Inc.	`ComprehensiveIncomeNetOfTax`	$-333.00M	USD	3 Qtrs

Data is extracted from SEC EDGAR XBRL filings. Values shown are as reported in the filing.