2018 Q4 Form 10-K Financial Statement
#000119312519057808 Filed on February 28, 2019
Income Statement
| Concept | 2018 Q4 | 2018 | 2017 Q4 |
|---|---|---|---|
| Revenue | -$26.00M | $162.0M | $254.0M |
| YoY Change | -110.24% | -62.59% | -561.82% |
| Cost Of Revenue | $63.00M | ||
| YoY Change | -90.78% | ||
| Gross Profit | $99.00M | ||
| YoY Change | -139.6% | ||
| Gross Profit Margin | 61.11% | ||
| Selling, General & Admin | $91.00M | ||
| YoY Change | -29.46% | ||
| % of Gross Profit | 91.92% | ||
| Research & Development | |||
| YoY Change | |||
| % of Gross Profit | |||
| Depreciation & Amortization | |||
| YoY Change | |||
| % of Gross Profit | |||
| Operating Expenses | -$94.00M | $91.00M | $240.0M |
| YoY Change | -139.17% | -29.46% | 92.0% |
| Operating Profit | $8.000M | ||
| YoY Change | -102.11% | ||
| Interest Expense | -$75.00M | $206.0M | -$69.00M |
| YoY Change | 8.7% | 4.57% | 27.78% |
| % of Operating Profit | 2575.0% | ||
| Other Income/Expense, Net | |||
| YoY Change | |||
| Pretax Income | -$9.000M | -$296.0M | -$58.00M |
| YoY Change | -84.48% | -55.22% | -75.63% |
| Income Tax | -$2.000M | $0.00 | -$21.00M |
| % Of Pretax Income | |||
| Net Earnings | -$7.000M | -$296.0M | -$37.00M |
| YoY Change | -81.08% | -81.56% | -86.04% |
| Net Earnings / Revenue | -182.72% | -14.57% | |
| Basic Earnings Per Share | -$3.33 | ||
| Diluted Earnings Per Share | -$78.83K | -$3.33 | -$386.2K |
| COMMON SHARES | |||
| Basic Shares Outstanding | 90.69M shares | 89.00M | 91.78M shares |
| Diluted Shares Outstanding | 89.01M shares |
Balance Sheet
| Concept | 2018 Q4 | 2018 | 2017 Q4 |
|---|---|---|---|
| SHORT-TERM ASSETS | |||
| Cash & Short-Term Investments | |||
| YoY Change | |||
| Cash & Equivalents | $280.0M | $222.0M | $146.0M |
| Short-Term Investments | |||
| Other Short-Term Assets | |||
| YoY Change | |||
| Inventory | |||
| Prepaid Expenses | |||
| Receivables | |||
| Other Receivables | |||
| Total Short-Term Assets | |||
| YoY Change | |||
| LONG-TERM ASSETS | |||
| Property, Plant & Equipment | |||
| YoY Change | |||
| Goodwill | |||
| YoY Change | |||
| Intangibles | |||
| YoY Change | |||
| Long-Term Investments | $5.709B | $5.709B | $7.813B |
| YoY Change | -26.93% | -26.93% | -5.27% |
| Other Assets | $0.00 | ||
| YoY Change | -100.0% | ||
| Total Long-Term Assets | |||
| YoY Change | |||
| TOTAL ASSETS | |||
| Total Short-Term Assets | |||
| Total Long-Term Assets | |||
| Total Assets | $8.076B | $8.107B | $9.095B |
| YoY Change | -11.2% | -10.86% | -18.34% |
| SHORT-TERM LIABILITIES | |||
| YoY Change | |||
| Accounts Payable | |||
| YoY Change | |||
| Accrued Expenses | |||
| YoY Change | |||
| Deferred Revenue | |||
| YoY Change | |||
| Short-Term Debt | $0.00 | $0.00 | $0.00 |
| YoY Change | |||
| Long-Term Debt Due | |||
| YoY Change | |||
| Total Short-Term Liabilities | |||
| YoY Change | |||
| LONG-TERM LIABILITIES | |||
| Long-Term Debt | $2.249B | $5.013B | $2.121B |
| YoY Change | 6.03% | -8.95% | 6.8% |
| Other Long-Term Liabilities | $410.0M | $410.0M | $433.0M |
| YoY Change | -5.31% | -5.31% | -51.62% |
| Total Long-Term Liabilities | $2.249B | $5.423B | $2.121B |
| YoY Change | 6.03% | -8.69% | 6.8% |
| TOTAL LIABILITIES | |||
| Total Short-Term Liabilities | |||
| Total Long-Term Liabilities | $2.249B | $5.423B | $2.121B |
| Total Liabilities | $6.944B | $6.975B | $7.670B |
| YoY Change | -9.47% | -9.06% | -2.89% |
| SHAREHOLDERS EQUITY | |||
| Retained Earnings | $966.0M | $1.095B | |
| YoY Change | -11.78% | -59.44% | |
| Common Stock | $284.0M | $284.0M | |
| YoY Change | 0.0% | 0.0% | |
| Preferred Stock | |||
| YoY Change | |||
| Treasury Stock (at cost) | $3.000B | $3.118B | |
| YoY Change | -3.78% | 11.8% | |
| Treasury Stock Shares | 193.8M shares | 192.2M shares | |
| Shareholders Equity | $1.119B | $1.132B | $1.413B |
| YoY Change | |||
| Total Liabilities & Shareholders Equity | $8.076B | $8.107B | $9.095B |
| YoY Change | -11.2% | -10.86% | -18.34% |
Cashflow Statement
| Concept | 2018 Q4 | 2018 | 2017 Q4 |
|---|---|---|---|
| OPERATING ACTIVITIES | |||
| Net Income | -$7.000M | -$296.0M | -$37.00M |
| YoY Change | -81.08% | -81.56% | -86.04% |
| Depreciation, Depletion And Amortization | |||
| YoY Change | |||
| Cash From Operating Activities | $4.000M | -$319.0M | $41.00M |
| YoY Change | -90.24% | -51.07% | -144.09% |
| INVESTING ACTIVITIES | |||
| Capital Expenditures | -$1.000M | $1.000M | $0.00 |
| YoY Change | 0.0% | ||
| Acquisitions | |||
| YoY Change | |||
| Other Investing Activities | $371.0M | $0.00 | $376.0M |
| YoY Change | -1.33% | -100.0% | 100.0% |
| Cash From Investing Activities | $370.0M | $1.206B | $376.0M |
| YoY Change | -1.6% | 0.33% | 100.0% |
| FINANCING ACTIVITIES | |||
| Cash Dividend Paid | |||
| YoY Change | |||
| Common Stock Issuance & Retirement, Net | $44.00M | ||
| YoY Change | -86.67% | ||
| Debt Paid & Issued, Net | |||
| YoY Change | |||
| Cash From Financing Activities | -272.0M | -$752.0M | -405.0M |
| YoY Change | -32.84% | 27.67% | 229.27% |
| NET CHANGE | |||
| Cash From Operating Activities | 4.000M | -$319.0M | 41.00M |
| Cash From Investing Activities | 370.0M | $1.206B | 376.0M |
| Cash From Financing Activities | -272.0M | -$752.0M | -405.0M |
| Net Change In Cash | 102.0M | $135.0M | 12.00M |
| YoY Change | 750.0% | -446.15% | -142.86% |
| FREE CASH FLOW | |||
| Cash From Operating Activities | $4.000M | -$319.0M | $41.00M |
| Capital Expenditures | -$1.000M | $1.000M | $0.00 |
| Free Cash Flow | $5.000M | -$320.0M | $41.00M |
| YoY Change | -87.8% | -51.0% | -144.09% |
Facts In Submission
| Frame | Concept Type | Concept / XBRL Key | Value | Unit |
|---|---|---|---|---|
| CY2018Q4 | us-gaap |
Cash Including Discontinued Operations
CashIncludingDiscontinuedOperations
|
0 | USD |
| CY2018 | mbi |
Percentage Of Policyholders Surplus
PercentageOfPolicyholdersSurplus
|
0.1 | pure |
| CY2018 | mbi |
Percentage Of Adjusted Net Investment Income
PercentageOfAdjustedNetInvestmentIncome
|
1 | pure |
| CY2017Q4 | mbi |
Number Of Policies
NumberOfPolicies
|
375 | |
| CY2017Q4 | us-gaap |
Schedule Of Insured Financial Obligations With Credit Deterioration Insured Contractual Payments Outstanding
ScheduleOfInsuredFinancialObligationsWithCreditDeteriorationInsuredContractualPaymentsOutstanding
|
17445000000 | USD |
| CY2017Q4 | us-gaap |
Schedule Of Insured Financial Obligations With Credit Deterioration Net Claim Liability
ScheduleOfInsuredFinancialObligationsWithCreditDeteriorationNetClaimLiability
|
478000000 | USD |
| CY2018 | us-gaap |
Assumed Premiums Written
AssumedPremiumsWritten
|
0 | USD |
| CY2016 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
-2.54 | |
| CY2018 | mbi |
Net Other Than Temporary Impairments
NetOtherThanTemporaryImpairments
|
5000000 | USD |
| CY2017 | mbi |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale And For Writedown Of Securities Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAociForSaleAndForWritedownOfSecuritiesTax
|
-1000000 | USD |
| CY2017 | us-gaap |
Increase Decrease In Accrued Liabilities
IncreaseDecreaseInAccruedLiabilities
|
-29000000 | USD |
| CY2017 | us-gaap |
Payments For Operating Activities
PaymentsForOperatingActivities
|
130000000 | USD |
| CY2018 | us-gaap |
Increase Decrease In Unearned Premiums
IncreaseDecreaseInUnearnedPremiums
|
-165000000 | USD |
| CY2018Q4 | us-gaap |
Financial Guarantee Insurance Contracts Premium Expected To Be Collected More Than Two And Within Three Years From Balance Sheet Date
FinancialGuaranteeInsuranceContractsPremiumExpectedToBeCollectedMoreThanTwoAndWithinThreeYearsFromBalanceSheetDate
|
30000000 | USD |
| CY2018Q4 | us-gaap |
Preferred Stock Shares Authorized
PreferredStockSharesAuthorized
|
10000000 | shares |
| CY2018 | us-gaap |
Benefits Losses And Expenses
BenefitsLossesAndExpenses
|
458000000 | USD |
| CY2016 | us-gaap |
Payments For Operating Activities
PaymentsForOperatingActivities
|
134000000 | USD |
| CY2016 | us-gaap |
Interest Expense
InterestExpense
|
197000000 | USD |
| CY2016 | mbi |
Revenues Of Consolidated Vies
RevenuesOfConsolidatedVies
|
31000000 | USD |
| CY2018Q4 | us-gaap |
Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
|
8076000000 | USD |
| CY2018 | dei |
Document Fiscal Year Focus
DocumentFiscalYearFocus
|
2018 | |
| CY2017 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
-1605000000 | USD |
| CY2017 | mbi |
Other Comprehensive Income Unrealized Holding Gain Loss Arising During Period On Securities With Other Than Temporary Impairment Losses Before Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossArisingDuringPeriodOnSecuritiesWithOtherThanTemporaryImpairmentLossesBeforeTax
|
-3000000 | USD |
| CY2018Q4 | mbi |
Number Of Policies
NumberOfPolicies
|
300 | |
| CY2016 | us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
8000000 | USD |
| CY2018 | dei |
Entity Registrant Name
EntityRegistrantName
|
MBIA INC | |
| CY2017 | us-gaap |
Assumed Premiums Written
AssumedPremiumsWritten
|
0 | USD |
| CY2018Q4 | mbi |
Fair Value Of Securities On Deposit With Various Regulatory Authorities
FairValueOfSecuritiesOnDepositWithVariousRegulatoryAuthorities
|
11000000 | USD |
| CY2018Q4 | us-gaap |
Security Owned And Pledged As Collateral Fair Value
SecurityOwnedAndPledgedAsCollateralFairValue
|
314000000 | USD |
| CY2018 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
89013711 | shares |
| CY2018 | us-gaap |
Number Of Operating Segments
NumberOfOperatingSegments
|
3 | segments |
| CY2018Q4 | us-gaap |
Financial Guarantee Insurance Contracts Premium Expected To Be Collected During Fourth Quarter Following Balance Sheet Date
FinancialGuaranteeInsuranceContractsPremiumExpectedToBeCollectedDuringFourthQuarterFollowingBalanceSheetDate
|
12000000 | USD |
| CY2018Q4 | mbi |
Number Of Other Lawsuits
NumberOfOtherLawsuits
|
0 | Lawsuits |
| CY2016 | us-gaap |
Proceeds From Sale Of Available For Sale Securities
ProceedsFromSaleOfAvailableForSaleSecurities
|
2412000000 | USD |
| CY2016 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
-338000000 | USD |
| CY2017 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
4000000 | USD |
| CY2017 | us-gaap |
Treasury Stock Value Acquired Cost Method
TreasuryStockValueAcquiredCostMethod
|
325000000 | USD |
| CY2018 | us-gaap |
Repayments Of Notes Payable
RepaymentsOfNotesPayable
|
598000000 | USD |
| CY2018 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
0 | USD |
| CY2018 | us-gaap |
Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
|
44000000 | USD |
| CY2017 | us-gaap |
Revenues
Revenues
|
433000000 | USD |
| CY2017 | us-gaap |
Unrealized Gain Loss On Derivatives
UnrealizedGainLossOnDerivatives
|
0 | USD |
| CY2018 | us-gaap |
Direct Premiums Written
DirectPremiumsWritten
|
3000000 | USD |
| CY2018 | us-gaap |
Interest Expense
InterestExpense
|
206000000 | USD |
| CY2018 | us-gaap |
Payments For Losses And Loss Adjustment Expense
PaymentsForLossesAndLossAdjustmentExpense
|
385000000 | USD |
| CY2016 | us-gaap |
Gain Loss On Derivative Instruments Net Pretax
GainLossOnDerivativeInstrumentsNetPretax
|
-19000000 | USD |
| CY2018 | mbi |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale And For Writedown Of Securities Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAociForSaleAndForWritedownOfSecuritiesTax
|
0 | USD |
| CY2016 | mbi |
Vie Interest Net
VieInterestNet
|
57000000 | USD |
| CY2017 | us-gaap |
Proceeds From Sale Of Available For Sale Securities
ProceedsFromSaleOfAvailableForSaleSecurities
|
2256000000 | USD |
| CY2018Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
280000000 | USD |
| CY2018Q4 | us-gaap |
Treasury Stock Value
TreasuryStockValue
|
3000000000 | USD |
| CY2018Q4 | us-gaap |
Reinsurance Payable
ReinsurancePayable
|
20000000 | USD |
| CY2017 | us-gaap |
Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
|
-4000000 | USD |
| CY2016 | us-gaap |
Proceeds From Sale And Collection Of Loans Receivable
ProceedsFromSaleAndCollectionOfLoansReceivable
|
261000000 | USD |
| CY2016 | us-gaap |
Incremental Common Shares Attributable To Share Based Payment Arrangements
IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
|
0 | shares |
| CY2017 | us-gaap |
Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities
ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities
|
568000000 | USD |
| CY2018 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax
|
5000000 | USD |
| CY2018Q4 | us-gaap |
Schedule Of Insured Financial Obligations With Credit Deterioration Insured Contractual Payments Outstanding
ScheduleOfInsuredFinancialObligationsWithCreditDeteriorationInsuredContractualPaymentsOutstanding
|
14861000000 | USD |
| CY2017 | us-gaap |
Undistributed Earnings Loss Allocated To Participating Securities Diluted
UndistributedEarningsLossAllocatedToParticipatingSecuritiesDiluted
|
0 | USD |
| CY2016 | us-gaap |
Interest Paid Net
InterestPaidNet
|
148000000 | USD |
| CY2017 | us-gaap |
Proceeds From Sale And Collection Of Loans Receivable
ProceedsFromSaleAndCollectionOfLoansReceivable
|
259000000 | USD |
| CY2018Q4 | mbi |
Aggregate Amount Insurance In Force Outstanding Ceded To Reinsurers
AggregateAmountInsuranceInForceOutstandingCededToReinsurers
|
4200000000 | USD |
| CY2018 | us-gaap |
Stock Issued During Period Value Share Based Compensation
StockIssuedDuringPeriodValueShareBasedCompensation
|
7000000 | USD |
| CY2016 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
|
-339000000 | USD |
| CY2018Q4 | us-gaap |
Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value
AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue
|
1476000000 | USD |
| CY2018 | mbi |
Net Gains Losses On Financial Instruments At Fair Value And Foreign Exchange
NetGainsLossesOnFinancialInstrumentsAtFairValueAndForeignExchange
|
-17000000 | USD |
| CY2018 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-296000000 | USD |
| CY2018 | us-gaap |
Nature Of Operations
NatureOfOperations
|
<div><p style='text-align:left;margin-top:0pt;margin-bottom:0pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;font-weight:bold;margin-left:0pt;' >Note 1: Business Developments and Risks and Uncertainties</font></p><p style='text-align:left;margin-top:13pt;margin-bottom:4.5pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;font-weight:bold;font-style:italic;margin-left:0pt;' >Summary</font></p><p style='text-align:left;margin-top:0pt;margin-bottom:9pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;margin-left:0pt;' >MBIA Inc., together with its consolidated subsidiaries, (collectively, “MBIA” or the “Company”) operates within the financial guarantee insurance industry. MBIA manages three operating segments: 1) United States (“U.S.”) public finance</font><font style='font-family:Times New Roman;font-size:10pt;' > insurance; 2) corporate; and 3) international and structured finance insurance.</font><font style='font-family:Times New Roman;font-size:10pt;' > </font><font style='font-family:Times New Roman;font-size:10pt;' >The Company’s U.S. public finance insurance business is </font><font style='font-family:Times New Roman;font-size:10pt;' >managed</font><font style='font-family:Times New Roman;font-size:10pt;' > through National Public Finance Guarantee Corporation (“National”), the corporate segment is </font><font style='font-family:Times New Roman;font-size:10pt;' >operated through MBIA Inc. and several of its subsidiaries, including our service company, MBIA Services Corporation (“MBIA Services”) </font><font style='font-family:Times New Roman;font-size:10pt;' >and its international and structu</font><font style='font-family:Times New Roman;font-size:10pt;' >red finance insurance business is primarily operated through MBIA Insurance Corporation and its subsidiaries (“MBIA Corp.”). </font><font style='font-family:Times New Roman;font-size:10pt;' >Effective on January 10, 2017, MBIA Corp.’s wholly-owned subsidiar</font><font style='font-family:Times New Roman;font-size:10pt;' >y, MBIA UK (Holdings) Limited (“MBIA UK Holdings”), sold its oper</font><font style='font-family:Times New Roman;font-size:10pt;' >ating subsidiary, </font><font style='font-family:Times New Roman;font-size:10pt;' >MBIA UK Insurance Limited (“MBIA UK”)</font><font style='font-family:Times New Roman;font-size:10pt;' >, to Assured Guaranty Corp. (“Assured”), a subsidiary of Assured Guaranty Ltd. Refer below for a further discussion of the sale of MBIA UK. Unless otherwise indicated or the context otherwise requires,</font><font style='font-family:Times New Roman;font-size:10pt;' > references to “MBIA Corp.” are </font><font style='font-family:Times New Roman;font-size:10pt;' >(i) for any references relating to the period ended January 10, 2017, to MBIA Insurance Corporation, together with its subsidiaries, MBIA UK, and MBIA Mexico S.A. de C.V. (“MBIA Mexico”) and (ii) for any references relating </font><font style='font-family:Times New Roman;font-size:10pt;' >to the period after January 10, 2017, to MBIA Insurance Corporation together with MBIA Mexico.</font></p><p style='text-align:left;margin-top:0pt;margin-bottom:9pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;margin-left:0pt;' >Refer to “</font><font style='font-family:Times New Roman;font-size:10pt;' >Note 12: Business Segments</font><font style='font-family:Times New Roman;font-size:10pt;' >” </font><font style='font-family:Times New Roman;font-size:10pt;' >for further information about the Company’s operating segments. </font></p><p style='text-align:left;margin-top:9pt;margin-bottom:4.5pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;font-weight:bold;font-style:italic;margin-left:0pt;' >Business Developments</font></p><p style='text-align:left;margin-top:4.5pt;margin-bottom:4.5pt;line-height:13.8pt;' ><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;margin-left:0pt;' >Financial Strength Ratings</font></p><p style='text-align:left;margin-top:0pt;margin-bottom:9pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;margin-left:0pt;' >In June of </font><font style='font-family:Times New Roman;font-size:10pt;' >2017, Standar</font><font style='font-family:Times New Roman;font-size:10pt;' >d & Poor’s Financial Services LLC (“S&P”)</font><font style='font-family:Times New Roman;font-size:10pt;' > downgraded the financial </font><font style='font-family:Times New Roman;font-size:10pt;' >strength rating of National </font><font style='font-family:Times New Roman;font-size:10pt;' >which made </font><font style='font-family:Times New Roman;font-size:10pt;' >it</font><font style='font-family:Times New Roman;font-size:10pt;' > </font><font style='font-family:Times New Roman;font-size:10pt;' >difficult for National to compete with higher-rated competitors</font><font style='font-family:Times New Roman;font-size:10pt;' >. Theref</font><font style='font-family:Times New Roman;font-size:10pt;' >ore, </font><font style='font-family:Times New Roman;font-size:10pt;' >at that time, </font><font style='font-family:Times New Roman;font-size:10pt;' >National ceased its efforts to </font><font style='font-family:Times New Roman;font-size:10pt;' >w</font><font style='font-family:Times New Roman;font-size:10pt;' >rit</font><font style='font-family:Times New Roman;font-size:10pt;' >e </font><font style='font-family:Times New Roman;font-size:10pt;' >new </font><font style='font-family:Times New Roman;font-size:10pt;' >financial guaran</font><font style='font-family:Times New Roman;font-size:10pt;' >tee business. The Company then terminated its agreements with S&P, Kroll Bond Rating Agency (“Kroll”) and Moody’s Investors Services (“Moody’s”) to provide financial strength ratings to MBIA Inc. and certain of its subsidiaries. S&P and Kroll subsequently </font><font style='font-family:Times New Roman;font-size:10pt;' >withdrew all of their ratings. On January 17, 2018, Moody’s downgraded the financial strength rating of National to Baa2 from A3 with a stable outlook, affirmed the financial strength rating of MBIA Corp. at Caa1 with a developing outlook, downgraded MBIA </font><font style='font-family:Times New Roman;font-size:10pt;' >Inc.’s rating to Ba3 with a stable outlook from Ba1 with a negative outlook, and affirmed the financial strength rating of MBIA Mexico at Caa1/B3.mx with a developing outlook. </font><font style='font-family:Times New Roman;font-size:10pt;' >Moody’s, at its discretion and in the absence of a contract with the Company, co</font><font style='font-family:Times New Roman;font-size:10pt;' >ntinues to maintain ratings on MBIA Inc. and its subsidiaries.</font></p><p style='text-align:left;margin-top:4.5pt;margin-bottom:4.5pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;margin-left:0pt;' >Stock Warrants</font></p><p style='text-align:left;margin-top:0pt;margin-bottom:9pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;margin-left:0pt;' >In April and June of 2018, the holder of certain MBIA Inc. warrants exercised its right to purchase,</font><font style='font-family:Times New Roman;font-size:10pt;' > in total, 11.85 million shares of MBIA Inc. common stock at an exercise price of $9.59 per share. As a result, the Company issued a total of 1.3 million shares of MBIA Inc. common stock to the holder in accordance with the cashless settlement provision of</font><font style='font-family:Times New Roman;font-size:10pt;' > the warrants. </font><font style='font-family:Times New Roman;font-size:10pt;' >As of </font><font style='font-family:Times New Roman;font-size:10pt;' >December 31,</font><font style='font-family:Times New Roman;font-size:10pt;' > </font><font style='font-family:Times New Roman;font-size:10pt;' >2018</font><font style='font-family:Times New Roman;font-size:10pt;' >, there were no warrants outstanding. </font><font style='font-family:Times New Roman;font-size:10pt;' > </font></p></div><p style='line-height:20pt;' /><div><p style='text-align:left;margin-top:4.5pt;margin-bottom:0pt;line-height:13.8pt;' ><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;margin-left:0pt;' >Sale of MBIA UK </font></p><p style='text-align:left;margin-top:4.5pt;margin-bottom:9pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;margin-left:0pt;' >On January 10, 2017, MBIA UK Holdings sold its operating subsidiary, MBIA UK, and made a cash payment of $</font><font style='font-family:Times New Roman;font-size:10pt;' >23</font><font style='font-family:Times New Roman;font-size:10pt;' > million, to Assured in exchange for the receipt by MBIA UK Holdings of certain notes owned by Assured that were issued by Zohar </font><font style='font-family:Times New Roman;font-size:10pt;' >II 2005-1, Limited (“Zohar II”) with an aggregate outstanding principal amount of $</font><font style='font-family:Times New Roman;font-size:10pt;' >347</font><font style='font-family:Times New Roman;font-size:10pt;' > million as of January 10, 2017 (the “Sale Transaction”). During 2017, the Company recorded a gain of $</font><font style='font-family:Times New Roman;font-size:10pt;' >5</font><font style='font-family:Times New Roman;font-size:10pt;' > million to adjust the carrying value of MBIA UK to its fair value</font><font style='font-family:Times New Roman;font-size:10pt;' > less costs to sell as of the sale date. These results were reflected in the Company’s international and structured finance insurance segment and included in “Other net realized gains (losses)” on the Company’s consolidated statement of operations.</font></p><p style='text-align:left;margin-top:9pt;margin-bottom:4.5pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;font-weight:bold;font-style:italic;margin-left:0pt;' >Risks a</font><font style='font-family:Times New Roman;font-size:10pt;font-weight:bold;font-style:italic;' >nd Uncertainties</font></p><p style='text-align:left;margin-top:4.5pt;margin-bottom:4.5pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;margin-left:0pt;' >The Company’s financial statements 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 revi</font><font style='font-family:Times New Roman;font-size:10pt;' >se its estimates and assumptions or could cause actual results to differ from the Company’s estimates. The discussion below highlights the significant risks and uncertainties that could have a material effect on the Company’s financial statements and busin</font><font style='font-family:Times New Roman;font-size:10pt;' >ess objectives in future periods. </font></p><p style='text-align:left;margin-top:9pt;margin-bottom:4.5pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;margin-left:0pt;' >U.S. Public Finance Market Conditions</font></p><p style='text-align:left;margin-top:0pt;margin-bottom:9pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;margin-left:0pt;' >National continues to surveil and remediate its existing insured portfolio and will seek opportunities to enhance shareholder value using its substantial financial resources, while p</font><font style='font-family:Times New Roman;font-size:10pt;' >rotecting the interests of all policyholders. </font><font style='font-family:Times New Roman;font-size:10pt;' >Certain state and local governments and territory obligors that National insures are under financial and budgetary stress. This could lead to an increase in defaults by such entities on the payment of their obl</font><font style='font-family:Times New Roman;font-size:10pt;' >igations and losses or impairments on a greater number of National’s insured transactions. National monitors and analyzes these situations and other stressed credits closely, and the overall extent and duration of this stress is uncertain. </font></p><p style='text-align:left;margin-top:0pt;margin-bottom:9pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;margin-left:0pt;' >The Commonweal</font><font style='font-family:Times New Roman;font-size:10pt;' >th of </font><font style='font-family:Times New Roman;font-size:10pt;' >Puerto Rico </font><font style='font-family:Times New Roman;font-size:10pt;' >and certain of its instrumentalities (“Puerto Rico”) are</font><font style='font-family:Times New Roman;font-size:10pt;' > experiencing </font><font style='font-family:Times New Roman;font-size:10pt;' >significant </font><font style='font-family:Times New Roman;font-size:10pt;' >fiscal stress and constrained liquidity due to, among other things, Puerto Rico’s structural budget imbalance, </font><font style='font-family:Times New Roman;font-size:10pt;' >the lack of </font><font style='font-family:Times New Roman;font-size:10pt;' >access to the capital markets, a</font><font style='font-family:Times New Roman;font-size:10pt;' > </font><font style='font-family:Times New Roman;font-size:10pt;' >stagnating local economy, net migration of people out of Puerto Rico and a high debt burden</font><font style='font-family:Times New Roman;font-size:10pt;' >.</font><font style='font-family:Times New Roman;font-size:10pt;' > </font><font style='font-family:Times New Roman;font-size:10pt;' >Puerto Rico continues in its efforts to rebuild its infrastructure and to otherwise recover from the impact of Hurricane Maria in 2017, aided in part by Federal Em</font><font style='font-family:Times New Roman;font-size:10pt;' >ergency Management Agency and other federal agencies. As part of the Title III proceedings under Puerto Rico Oversight, Management and Economic Stability Act (“PROMESA”), Puerto Rico submitted several draft fiscal plans and an independent </font><font style='font-family:Times New Roman;font-size:10pt;' >Financial Oversig</font><font style='font-family:Times New Roman;font-size:10pt;' >ht and Management Board for Puerto Rico </font><font style='font-family:Times New Roman;font-size:10pt;' >(“Oversight Board”) voted to certify the most recent fiscal plan. The current plan, or any revisions thereto, can provide no assurance that National will fully recover past amounts paid or future amounts that may be </font><font style='font-family:Times New Roman;font-size:10pt;' >covered under its insurance policies. In addition, th</font><font style='font-family:Times New Roman;font-size:10pt;' >e extent and duration of such aid is inherently uncertain, and the </font><font style='font-family:Times New Roman;font-size:10pt;' >necessary and greater involvement of the federal government, through its actions to deliver disaster relief and other support services, </font><font style='font-family:Times New Roman;font-size:10pt;' >in addition to the role of the Oversight Board and the role of Puerto Rico in its own recovery, heightens political risk in connection with the restructuring of legacy debt. This risk could lead the Oversight Board, Puerto Rico or the federal government to</font><font style='font-family:Times New Roman;font-size:10pt;' > seek to extract greater concessions from creditors based on the uncertainty of Puerto Rico’s long term recovery prospects. In this event, losses at National on select Puerto Rico exposures could increase materially.</font></p><p style='text-align:left;margin-top:0pt;margin-bottom:9pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;margin-left:0pt;' >Puerto Rico defaulted on scheduled debt</font><font style='font-family:Times New Roman;font-size:10pt;' > service for National insured bonds and National paid gross claims in the aggregate of $</font><font style='font-family:Times New Roman;font-size:10pt;' >276</font><font style='font-family:Times New Roman;font-size:10pt;' > million during 2018. On January 1, 2019, Puerto Rico also defaulted on scheduled debt service for National insured bonds and National paid gross claims in the aggre</font><font style='font-family:Times New Roman;font-size:10pt;' >gate of $</font><font style='font-family:Times New Roman;font-size:10pt;' >65</font><font style='font-family:Times New Roman;font-size:10pt;' > million. </font></p><p style='text-align:left;margin-top:9pt;margin-bottom:4.5pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;margin-left:0pt;' >MBIA Corp. </font><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;' >Insured Portfolio</font><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;' > </font></p><p style='text-align:left;margin-top:0pt;margin-bottom:9pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;margin-left:0pt;' >MBIA Corp.’s primary objectives are to satisfy all claims by its policyholders and to maximize future recoveries, if any, for its senior lending and surplus note holders, and then its preferred stock </font><font style='font-family:Times New Roman;font-size:10pt;' >holders. MBIA Corp. is executing this strategy by, among other things, pursuing various actions focused on maximizing the collection of recoveries and by reducing potential losses on its insurance exposures. </font><font style='font-family:Times New Roman;font-size:10pt;' >MBIA Corp.’s insured portfolio </font><font style='font-family:Times New Roman;font-size:10pt;' >performance </font><font style='font-family:Times New Roman;font-size:10pt;' >could</font><font style='font-family:Times New Roman;font-size:10pt;' > deteriorate and result in additional significant loss reserves and claim payments. </font><font style='font-family:Times New Roman;font-size:10pt;' >MBIA Corp.’s ability to meet its obligations is limited by available liquidity and its ability to </font><font style='font-family:Times New Roman;font-size:10pt;' >secure</font><font style='font-family:Times New Roman;font-size:10pt;' > additional </font><font style='font-family:Times New Roman;font-size:10pt;' >liquidity </font><font style='font-family:Times New Roman;font-size:10pt;' >through financing and other transactions. Ther</font><font style='font-family:Times New Roman;font-size:10pt;' >e can be no assurance that MBIA Corp. will be successful in generating sufficient </font><font style='font-family:Times New Roman;font-size:10pt;' >resources </font><font style='font-family:Times New Roman;font-size:10pt;' >to meet its obligations. </font></p><p style='text-align:left;margin-top:9pt;margin-bottom:4.5pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;text-decoration:underline;margin-left:0pt;' >Zohar and RMBS Recoveries</font></p><p style='text-align:left;margin-top:0pt;margin-bottom:9pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;margin-left:0pt;' >Payment of claims totaling $</font><font style='font-family:Times New Roman;font-size:10pt;' >919</font><font style='font-family:Times New Roman;font-size:10pt;' > million in November of 2015 and January of 2017, on MBIA</font><font style='font-family:Times New Roman;font-size:10pt;' > Corp.’s policies insuri</font><font style='font-family:Times New Roman;font-size:10pt;' >ng the C</font><font style='font-family:Times New Roman;font-size:10pt;' >lass A-1 and A-2 notes issued by Zohar CDO 2003-1, Limited (“Zohar I”) and insuring certain notes issued by Zohar II, entitles</font><font style='font-family:Times New Roman;font-size:10pt;' > MBIA Corp. to reimbursement of such amounts plus interest and expenses and/or to exercise certain rights and remedies to </font><font style='font-family:Times New Roman;font-size:10pt;' >seek recovery of such amounts. </font><font style='font-family:Times New Roman;font-size:10pt;' >MBIA Corp. anticipates that the primary source of the recoveries will come from the monetization of the assets of Zohar I and Zohar II, which include, among other things, loans made to, and equity interests in, companies purp</font><font style='font-family:Times New Roman;font-size:10pt;' >ortedly controlled by the sponsor and former collateral manager of Zohar I and Zohar II (the “Zohar Sponsor”) (all the assets of Zohar I and Zohar II, the “Zohar Assets”). </font><font style='font-family:Times New Roman;font-size:10pt;' >On March 11, 2018, the then-director of Zohar I and Zohar II placed those funds into</font><font style='font-family:Times New Roman;font-size:10pt;' > voluntary bankruptcy proceedings in federal bankruptcy court in the District of Delaware (the “Zohar Funds Bankruptcy Cases”). On May 21, 2018, the Court granted the Zohar funds’ motion to approve a settlement (the “Zohar Bankruptcy Settlement”) which est</font><font style='font-family:Times New Roman;font-size:10pt;' >ablished a process by which the debtor funds, through an independent director and a chief restructuring officer, will work with the original sponsor of the funds to monetize the Zohar Assets and repay creditors, including MBIA Corp. In addition, the Zohar </font><font style='font-family:Times New Roman;font-size:10pt;' >Bankruptcy Settlement provides for a stay of all pending litigation between the parties for a </font><font style='font-family:Times New Roman;font-size:10pt;' >minimum of fifteen months. </font><font style='font-family:Times New Roman;font-size:10pt;' >Subsequent to the Zohar Bankruptcy Settlement, the Company deconsolidated Zohar I and Zohar II as variable interest entities (“VIEs” or</font><font style='font-family:Times New Roman;font-size:10pt;' > “VIE”) and, as of </font><font style='font-family:Times New Roman;font-size:10pt;' >December 31,</font><font style='font-family:Times New Roman;font-size:10pt;' > </font><font style='font-family:Times New Roman;font-size:10pt;' >2018</font><font style='font-family:Times New Roman;font-size:10pt;' >, salvage and subrogation recoveries related to Zohar I and Zohar II are reported within “Insurance loss recoverable” on the Company’s consolidated balance sheet. Refer to “Note 4: Variable Interest Entities” for addi</font><font style='font-family:Times New Roman;font-size:10pt;' >tional information about the deconsolidation of the Zohar funds. Notwithstanding the Zohar Bankruptcy Settlement, </font><font style='font-family:Times New Roman;font-size:10pt;' >there can be no assurance that the value of the Zohar Assets will be sufficient to permit MBIA Corp. to recover all or substantially all of th</font><font style='font-family:Times New Roman;font-size:10pt;' >e payments it made on Zohar I and Zohar II. </font></p><p style='text-align:left;margin-top:4.5pt;margin-bottom:0pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;margin-left:0pt;' >MBIA Corp. also projects to collect excess spread from insured residential mortgage-backed securities (“RMBS”), and to recover proceeds from Credit Suisse Securities (USA) LLC, DLJ Mortgage Capital, Inc. and Se</font><font style='font-family:Times New Roman;font-size:10pt;' >lect Portfolio Servicing Inc. (collectively, “Credit Suisse”) arising from its failure to repurchase ineligible loans that were included in a Credit Suisse sponsored RMBS transaction. However, the amount and timing of these collections and recoveries are u</font><font style='font-family:Times New Roman;font-size:10pt;' >ncertain. </font></p><p style='text-align:left;margin-top:4.5pt;margin-bottom:4.5pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;margin-left:0pt;' >Failure to </font><font style='font-family:Times New Roman;font-size:10pt;' >collect </font><font style='font-family:Times New Roman;font-size:10pt;' >a substantial amount of </font><font style='font-family:Times New Roman;font-size:10pt;' >its expected recoveries </font><font style='font-family:Times New Roman;font-size:10pt;' >could impede </font><font style='font-family:Times New Roman;font-size:10pt;' >MBIA Corp.’s </font><font style='font-family:Times New Roman;font-size:10pt;' >ability to make payments when due on other policies. </font><font style='font-family:Times New Roman;font-size:10pt;' >MBIA Corp. believes that if the New York State Department of Financial Services (“NYSDFS”) conclude</font><font style='font-family:Times New Roman;font-size:10pt;' >s at any time that MBIA Insurance Corporation will not be able to pay its policyholder claims, the NYSDFS would likely put MBIA Insurance Corporation into a rehabilitation or liquidation proceeding under Article 74 of the New York Insurance Law</font><font style='font-family:Times New Roman;font-size:10pt;' > (“NYIL”)</font><font style='font-family:Times New Roman;font-size:10pt;' > an</font><font style='font-family:Times New Roman;font-size:10pt;' >d/or take such other actions as the NYSDFS may deem necessary to protect the interests of MBIA Insurance Corporation’s policyholders. The determination to commence such a proceeding or take other such actions is within the exclusive control of the NYSDFS. </font></p><p style='text-align:left;margin-top:4.5pt;margin-bottom:4.5pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;margin-left:0pt;' >Given the separation of MBIA Inc. </font><font style='font-family:Times New Roman;font-size:10pt;' >and MBIA Corp. as distinct legal entities, the absence of any cross defaults between the entities and the lack of reliance by MBIA Inc. on MBIA Corp. for the receipt of dividends, the Company does not believe that a rehab</font><font style='font-family:Times New Roman;font-size:10pt;' >ilitation or liquidation proceeding with respect to MBIA Insurance Corporation would have any significant liquidity impact on MBIA Inc.</font><font style='font-family:Times New Roman;font-size:10pt;' > </font><font style='font-family:Times New Roman;font-size:10pt;' >Such a proceeding could have material adverse consequen</font><font style='font-family:Times New Roman;font-size:10pt;' >ces for MBIA Corp., including the termination of insured credit default swaps (“CDS”) and other derivative contracts for which counterparties may assert market-based claims, the acceleration of debt obligations issued by affiliates and insured by MBIA Corp</font><font style='font-family:Times New Roman;font-size:10pt;' >., the loss of control of MBIA Insurance Corporation to a rehabilitator or liquidator, and unplanned costs.</font></p><p style='text-align:left;margin-top:4.5pt;margin-bottom:4.5pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;margin-left:0pt;' >Refer to “</font><font style='font-family:Times New Roman;font-size:10pt;' >Note 6: Loss and Loss Adjustment Expense Reserves</font><font style='font-family:Times New Roman;font-size:10pt;' >” for </font><font style='font-family:Times New Roman;font-size:10pt;' >additional </font><font style='font-family:Times New Roman;font-size:10pt;' >information about MBIA Corp.’s </font><font style='font-family:Times New Roman;font-size:10pt;' >r</font><font style='font-family:Times New Roman;font-size:10pt;' >ecoveries</font><font style='font-family:Times New Roman;font-size:10pt;' >.</font></p><p style='text-align:left;margin-top:9pt;margin-bottom:4.5pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;margin-left:0pt;' >Corporate Liquidity </font></p><p style='text-align:left;margin-top:0pt;margin-bottom:0pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;margin-left:0pt;' >Based on the Company’s projections of National’s dividends, </font><font style='font-family:Times New Roman;font-size:10pt;' >additional anticipated releases under its tax sharing agreement and related tax escrow account (“</font><font style='font-family:Times New Roman;font-size:10pt;' >Tax Escrow Account</font><font style='font-family:Times New Roman;font-size:10pt;' >”)</font><font style='font-family:Times New Roman;font-size:10pt;' >, and other cash inflows, the Company expects that MBIA Inc. will have sufficie</font><font style='font-family:Times New Roman;font-size:10pt;' >nt cash to satisfy its debt service and general corporate needs. However, MBIA Inc. continues to have liquidity risk </font><font style='font-family:Times New Roman;font-size:10pt;' >that </font><font style='font-family:Times New Roman;font-size:10pt;' >could be triggered by deterioration in the performance of invested assets, interruption of or reduction in dividends or tax payments r</font><font style='font-family:Times New Roman;font-size:10pt;' >eceived from operating subsidiaries, impaired access to the capital markets, as well as other factors, which </font><font style='font-family:Times New Roman;font-size:10pt;' >are not </font><font style='font-family:Times New Roman;font-size:10pt;' >anticipated at this time. Furthermore, failure by MBIA Inc. to settle liabilities that are insured by MBIA Corp. could result in claims on </font><font style='font-family:Times New Roman;font-size:10pt;' >MBIA Corp.</font></p></div> | |
| CY2017 | us-gaap |
Cash And Cash Equivalents Period Increase Decrease
CashAndCashEquivalentsPeriodIncreaseDecrease
|
-41000000 | USD |
| CY2018 | us-gaap |
Increase Decrease In Liability For Claims And Claims Adjustment Expense Reserve
IncreaseDecreaseInLiabilityForClaimsAndClaimsAdjustmentExpenseReserve
|
-46000000 | USD |
| CY2018 | us-gaap |
Increase Decrease In Premiums Receivable
IncreaseDecreaseInPremiumsReceivable
|
-60000000 | USD |
| CY2017 | us-gaap |
Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance
EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance
|
-1.169 | pure |
| CY2016 | mbi |
Net Gains Losses On Financial Instruments At Fair Value And Foreign Exchange
NetGainsLossesOnFinancialInstrumentsAtFairValueAndForeignExchange
|
84000000 | USD |
| CY2016 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.35 | pure |
| CY2018 | mbi |
Insurance Loss Recoverable And Changes In Recoveries Of Unpaid Losses Change In Discount Rate
InsuranceLossRecoverableAndChangesInRecoveriesOfUnpaidLossesChangeInDiscountRate
|
-14000000 | USD |
| CY2018Q4 | mbi |
Financial Guarantee Insurance Contracts Premium Expected To Be Collected During Sixteenth Year And Thereafter From Balance Sheet Date
FinancialGuaranteeInsuranceContractsPremiumExpectedToBeCollectedDuringSixteenthYearAndThereafterFromBalanceSheetDate
|
72000000 | USD |
| CY2018Q4 | us-gaap |
Reinsurance Recoverables
ReinsuranceRecoverables
|
6000000 | USD |
| CY2017 | mbi |
Expense From Transactions With Other Operating Segments Of Same Entity
ExpenseFromTransactionsWithOtherOperatingSegmentsOfSameEntity
|
0 | USD |
| CY2018Q4 | mbi |
Aggregate Amount Of Insured Par Outstanding Ceded To Reinsurers
AggregateAmountOfInsuredParOutstandingCededToReinsurers
|
2194000000 | USD |
| CY2016 | mbi |
Expenses Of Consolidated Vies
ExpensesOfConsolidatedVies
|
39000000 | USD |
| CY2016 | us-gaap |
Fair Value Adjustment Of Warrants
FairValueAdjustmentOfWarrants
|
0 | USD |
| CY2017 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
-13.5 | |
| CY2018Q4 | mbi |
Insurance Loss Recoverable And Changes In Recoveries Of Unpaid Losses
InsuranceLossRecoverableAndChangesInRecoveriesOfUnpaidLosses
|
1583000000 | USD |
| CY2018 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
-3.33 | |
| CY2018 | us-gaap |
Insured Financial Obligations With Credit Deterioration Remaining Weighted Average Contract Period
InsuredFinancialObligationsWithCreditDeteriorationRemainingWeightedAverageContractPeriod
|
P8Y10M24D | |
| CY2018 | mbi |
Premiums Earned Net Financial Guarantee Insurance Contracts And Insured Derivatives
PremiumsEarnedNetFinancialGuaranteeInsuranceContractsAndInsuredDerivatives
|
162000000 | USD |
| CY2018 | us-gaap |
Revenues
Revenues
|
162000000 | USD |
| CY2018 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.21 | pure |
| CY2017 | mbi |
Payments For Deconsolidation Of Variable Interest Entity
PaymentsForDeconsolidationOfVariableInterestEntity
|
0 | USD |
| CY2018 | us-gaap |
Treasury Stock Value Acquired Cost Method
TreasuryStockValueAcquiredCostMethod
|
48000000 | USD |
| CY2018 | us-gaap |
Effect Of Exchange Rate On Cash And Cash Equivalents Continuing Operations
EffectOfExchangeRateOnCashAndCashEquivalentsContinuingOperations
|
-1000000 | USD |
| CY2018Q4 | us-gaap |
Summary Of Investments Other Than Investments In Related Parties Cost
SummaryOfInvestmentsOtherThanInvestmentsInRelatedPartiesCost
|
4118000000 | USD |
| CY2018 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax
|
-60000000 | USD |
| CY2017Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
|
0 | shares |
| CY2016 | mbi |
Premiums Written Financial Guarantee Insurance Contracts Percentage Of Amount Assumed To Net
PremiumsWrittenFinancialGuaranteeInsuranceContractsPercentageOfAmountAssumedToNet
|
0 | pure |
| CY2018Q4 | us-gaap |
Summary Of Investments Other Than Investments In Related Parties Carrying Amount
SummaryOfInvestmentsOtherThanInvestmentsInRelatedPartiesCarryingAmount
|
4072000000 | USD |
| CY2017 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
118930282 | shares |
| CY2018 | mbi |
Increase Decrease In Insurance Loss Recoverable
IncreaseDecreaseInInsuranceLossRecoverable
|
213000000 | USD |
| CY2017 | us-gaap |
Proceeds From Interest And Dividends Received
ProceedsFromInterestAndDividendsReceived
|
248000000 | USD |
| CY2018 | us-gaap |
Description Of New Accounting Pronouncements Not Yet Adopted
DescriptionOfNewAccountingPronouncementsNotYetAdopted
|
<div><p style='text-align:left;margin-top:0pt;margin-bottom:4.5pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;font-weight:bold;font-style:italic;margin-left:0pt;' >Recent </font><font style='font-family:Times New Roman;font-size:10pt;font-weight:bold;font-style:italic;' >Accounting Developments</font><font style='font-family:Times New Roman;font-size:10pt;font-weight:bold;font-style:italic;' > </font></p><p style='text-align:left;margin-top:0pt;margin-bottom:4.5pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;margin-left:0pt;' >Leases (Topic 842) (ASU 2016-02)</font></p><p style='text-align:left;margin-top:0pt;margin-bottom:9pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;margin-left:0pt;' >In February of 2016, the FASB issued ASU 2016-02, “Leases (Topic 842)”</font><font style='font-family:Times New Roman;font-size:10pt;' >,</font><font style='font-family:Times New Roman;font-size:10pt;' > that amends </font><font style='font-family:Times New Roman;font-size:10pt;' >the accounting guidance for leasing transactions. ASU 2016-02 requires a lessee to classify lease contracts as finance or operating leases, and to recognize assets and liabilities for the rights and obligations created by leasing transactions with lease te</font><font style='font-family:Times New Roman;font-size:10pt;' >rms more than twelve months. ASU 2016-02 substantially retains the criteria for classifying leasing transactions as finance or operating leases. For finance leases, a lessee recognizes a right-of-use asset and a lease liability initially measured at the pr</font><font style='font-family:Times New Roman;font-size:10pt;' >esent value of the lease payments, and recognizes interest expense on the lease liability separately from the amortization of the right-of-use asset. For operating leases, a lessee recognizes a right-of-use asset and a lease liability initially measured at</font><font style='font-family:Times New Roman;font-size:10pt;' > the present value of the lease payments, and recognizes lease expense on a straight-line basis. ASU 2016-02 is effective for interim and annual periods beginning January 1, 2019 with early adoption permitted, and is applied on a modified retrospective bas</font><font style='font-family:Times New Roman;font-size:10pt;' >is. </font></p><p style='text-align:left;margin-top:0pt;margin-bottom:9pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;margin-left:0pt;' >The Company plans to adopt ASU 2016-02 in its entirety in the first quarter of 2019, using an additional (and optional) modified retrospective transition approach and will recognize and measure all leases that exist at the adoption date. Comparative p</font><font style='font-family:Times New Roman;font-size:10pt;' >eriods will be presented in accordance with Topic 840, Leases, and do not include any retrospective adjustments to comparative periods to reflect the adoption of ASU 2016-02. Based on the Company’s leases as of January 1, 2019, the Company expects to recor</font><font style='font-family:Times New Roman;font-size:10pt;' >d a right-of-use asset </font><font style='font-family:Times New Roman;font-size:10pt;' >and lease liability of $</font><font style='font-family:Times New Roman;font-size:10pt;' >23</font><font style='font-family:Times New Roman;font-size:10pt;' > million. The gross up of the assets and liabilities does not have a cumulative effect adjustment to the opening balance of retained earnings and does not impact the Company’s statement of operations. Refer </font><font style='font-family:Times New Roman;font-size:10pt;' >to “Note 20: Commitments and Contingencies” for information about the Company’s lease commitments. </font></p><p style='text-align:left;margin-top:0pt;margin-bottom:4.5pt;line-height:13.8pt;' ><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;margin-left:0pt;' >Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments (ASU 2016-13)</font></p><p style='text-align:left;margin-top:0pt;margin-bottom:9pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;margin-left:0pt;' >In June of 2016, the FASB issued ASU </font><font style='font-family:Times New Roman;font-size:10pt;' >2016-13, “Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments.” ASU 2016-13 requires financing receivables and other financial assets measured at amortized cost to be presented at the net amount expected t</font><font style='font-family:Times New Roman;font-size:10pt;' >o be collected by recording an allowance for credit losses with changes in the allowance recorded as credit loss expense or reversal of credit loss expense based on management’s current estimate of expected credit losses each period. ASU 2016-13 does not a</font><font style='font-family:Times New Roman;font-size:10pt;' >pply to credit losses on financial guarantee insurance contracts within the scope of Topic 944, “Financial Services-Insurance.” ASU 2016-13 also requires impairment relating to credit losses on </font><font style='font-family:Times New Roman;font-size:10pt;' >AFS</font><font style='font-family:Times New Roman;font-size:10pt;' > debt securities to be presented through an allowance for c</font><font style='font-family:Times New Roman;font-size:10pt;' >redit losses with changes in the allowance recorded in the period of the change as credit loss expense or reversal of credit loss expense. Any impairment amount not recorded through an allowance for credit losses on </font><font style='font-family:Times New Roman;font-size:10pt;' >AFS</font><font style='font-family:Times New Roman;font-size:10pt;' > debt securities is recorded through </font><font style='font-family:Times New Roman;font-size:10pt;' >other comprehensive income. ASU 2016-13 is effective for interim and annual periods beginning January 1, 2020 with early adoption permitted beginning January 1, 2019. ASU 2016-13 is applied on a modified retrospective basis except that prospective applicat</font><font style='font-family:Times New Roman;font-size:10pt;' >ion is applied to </font><font style='font-family:Times New Roman;font-size:10pt;' >AFS</font><font style='font-family:Times New Roman;font-size:10pt;' > debt securities with other-than-temporary impairments </font><font style='font-family:Times New Roman;font-size:10pt;' >(“OTTI”) </font><font style='font-family:Times New Roman;font-size:10pt;' >recognized before the date of adoption. The Company is evaluating the impact of adopting ASU 2016-13</font><font style='font-family:Times New Roman;font-size:10pt;' >. </font></p><p style='text-align:left;margin-top:0pt;margin-bottom:4.5pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;margin-left:0pt;' >Fair Value Measurement (Topic 820): Disclosure Framework—Changes to </font><font style='font-family:Times New Roman;font-size:10pt;font-style:italic;' >the Disclosure Requirements for Fair Value Measurement (ASU 2018-13)</font></p><p style='text-align:left;margin-top:0pt;margin-bottom:9pt;line-height:12pt;' ><font style='font-family:Times New Roman;font-size:10pt;margin-left:0pt;' >In August of 2018, the FASB issued ASU 2018-13, “Fair Value Measurement (Topic 820): Disclosure Framework—Changes to the Disclosure Requirements for Fair Value Measurement.” ASU 2018-13 m</font><font style='font-family:Times New Roman;font-size:10pt;' >odifies the disclosure requirements on fair value measurements. ASU 2018-13 is effective for interim and annual periods beginning January 1, 2020 with early adoption permitted to remove or modify disclosures upon issuance of the standard and delay adoption</font><font style='font-family:Times New Roman;font-size:10pt;' > of the additional disclosures until the effective date. Upon the effective date, certain amendments should be applied prospectively, while others are to be applied retrospectively to all periods presented. The Company is evaluating the impact of adopting </font><font style='font-family:Times New Roman;font-size:10pt;' >ASU 2018-13. Since the amendments of ASU 2018-13 only impact disclosure requirements, the Company does not expect the adoption of ASU 2018-13 to have an impact on its consolidated financial statements.</font></p></div> | |
| CY2017 | us-gaap |
Payments For Proceeds From Derivative Instrument Investing Activities
PaymentsForProceedsFromDerivativeInstrumentInvestingActivities
|
64000000 | USD |
| CY2017 | mbi |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale And For Writedown Of Securities Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAociForSaleAndForWritedownOfSecuritiesBeforeTax
|
-7000000 | USD |
| CY2018 | us-gaap |
Undistributed Earnings Loss Allocated To Participating Securities Diluted
UndistributedEarningsLossAllocatedToParticipatingSecuritiesDiluted
|
0 | USD |
| CY2018Q4 | us-gaap |
Common Stock Shares Issued
CommonStockSharesIssued
|
283625689 | shares |
| CY2017 | mbi |
Collections For Cases
CollectionsForCases
|
124000000 | USD |
| CY2018 | us-gaap |
Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance
EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance
|
-0.209 | pure |
| CY2016 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
133001088 | shares |
| CY2017 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax
|
0 | USD |
| CY2018 | mbi |
Revenues Of Consolidated Vies
RevenuesOfConsolidatedVies
|
-111000000 | USD |
| CY2017 | us-gaap |
Effect Of Exchange Rate On Cash And Cash Equivalents Continuing Operations
EffectOfExchangeRateOnCashAndCashEquivalentsContinuingOperations
|
-2000000 | USD |
| CY2017 | us-gaap |
Derivative Gain Loss On Derivative Net
DerivativeGainLossOnDerivativeNet
|
-68000000 | USD |
| CY2018 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
|
-65000000 | USD |
| CY2017 | us-gaap |
Repayments Of Medium Term Notes
RepaymentsOfMediumTermNotes
|
157000000 | USD |
| CY2016 | us-gaap |
Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost
EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost
|
-0.014 | pure |
| CY2018 | us-gaap |
Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
|
30000000 | USD |
| CY2016 | us-gaap |
Increase Decrease In Accrued Liabilities
IncreaseDecreaseInAccruedLiabilities
|
7000000 | USD |
| CY2018 | us-gaap |
Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost
EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost
|
0 | pure |
| CY2017 | us-gaap |
Direct Premiums Written
DirectPremiumsWritten
|
-1000000 | USD |
| CY2018 | mbi |
Effective Income Tax Rate Reconciliation Mark To Market On Warrants
EffectiveIncomeTaxRateReconciliationMarkToMarketOnWarrants
|
-0.007 | pure |
| CY2018Q4 | us-gaap |
Preferred Stock Shares Issued
PreferredStockSharesIssued
|
0 | shares |
| CY2018Q4 | us-gaap |
Financial Guarantee Insurance Contracts Future Expected Premium Revenue To Be Recognized
FinancialGuaranteeInsuranceContractsFutureExpectedPremiumRevenueToBeRecognized
|
662000000 | USD |
| CY2018Q4 | us-gaap |
Financial Guarantee Insurance Contracts Future Expected Premium Revenue To Be Recognized During Fourth Quarter Following Balance Sheet Date
FinancialGuaranteeInsuranceContractsFutureExpectedPremiumRevenueToBeRecognizedDuringFourthQuarterFollowingBalanceSheetDate
|
19000000 | USD |
| CY2018 | us-gaap |
Selling General And Administrative Expense
SellingGeneralAndAdministrativeExpense
|
91000000 | USD |
| CY2016 | us-gaap |
Net Income Loss Available To Common Stockholders Diluted
NetIncomeLossAvailableToCommonStockholdersDiluted
|
-338000000 | USD |
| CY2018 | us-gaap |
Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net
OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet
|
5000000 | USD |
| CY2018Q4 | us-gaap |
Financial Guarantee Insurance Contracts Premium Expected To Be Collected More Than Three And Within Four Years From Balance Sheet Date
FinancialGuaranteeInsuranceContractsPremiumExpectedToBeCollectedMoreThanThreeAndWithinFourYearsFromBalanceSheetDate
|
26000000 | USD |
| CY2016 | us-gaap |
Unrealized Gain Loss On Derivatives
UnrealizedGainLossOnDerivatives
|
21000000 | USD |
| CY2018Q4 | us-gaap |
Financial Guarantee Insurance Contracts Premium Expected To Be Collected During Third Quarter Following Balance Sheet Date
FinancialGuaranteeInsuranceContractsPremiumExpectedToBeCollectedDuringThirdQuarterFollowingBalanceSheetDate
|
6000000 | USD |
| CY2016 | us-gaap |
Effect Of Exchange Rate On Cash And Cash Equivalents Continuing Operations
EffectOfExchangeRateOnCashAndCashEquivalentsContinuingOperations
|
-2000000 | USD |
| CY2018 | mbi |
Other Comprehensive Income Unrealized Holding Gain Loss Arising During Period On Securities With Other Than Temporary Impairment Losses Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossArisingDuringPeriodOnSecuritiesWithOtherThanTemporaryImpairmentLossesTax
|
0 | USD |
| CY2018 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
-319000000 | USD |
| CY2018 | us-gaap |
Undistributed Earnings Loss Allocated To Participating Securities Basic
UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic
|
0 | USD |
| CY2018Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
|
-156000000 | USD |
| CY2018 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
-3.33 | |
| CY2018 | mbi |
Payments For Net Realized Losses On Insured Derivatives Paid
PaymentsForNetRealizedLossesOnInsuredDerivativesPaid
|
56000000 | USD |
| CY2018Q4 | us-gaap |
Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value
AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue
|
944000000 | USD |
| CY2018 | us-gaap |
Repayments Of Other Long Term Debt
RepaymentsOfOtherLongTermDebt
|
37000000 | USD |
| CY2016 | us-gaap |
Increase Decrease In Liability For Claims And Claims Adjustment Expense Reserve
IncreaseDecreaseInLiabilityForClaimsAndClaimsAdjustmentExpenseReserve
|
29000000 | USD |
| CY2018 | us-gaap |
Financial Guarantee Insurance Contracts Premium Received Over Contract Period Premium Receivable Weighted Average Collection Period1
FinancialGuaranteeInsuranceContractsPremiumReceivedOverContractPeriodPremiumReceivableWeightedAverageCollectionPeriod1
|
P9Y7M2D | |
| CY2018 | us-gaap |
Incremental Common Shares Attributable To Share Based Payment Arrangements
IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
|
0 | shares |
| CY2018Q4 | us-gaap |
Summary Of Investments Other Than Investments In Related Parties Fair Value
SummaryOfInvestmentsOtherThanInvestmentsInRelatedPartiesFairValue
|
4072000000 | USD |
| CY2018Q4 | us-gaap |
Derivative Collateral Right To Reclaim Cash
DerivativeCollateralRightToReclaimCash
|
0 | USD |
| CY2017 | us-gaap |
Payments For Losses And Loss Adjustment Expense
PaymentsForLossesAndLossAdjustmentExpense
|
768000000 | USD |
| CY2018Q4 | us-gaap |
Schedule Of Insured Financial Obligations With Credit Deterioration Net Claim Liability
ScheduleOfInsuredFinancialObligationsWithCreditDeteriorationNetClaimLiability
|
-608000000 | USD |
| CY2016 | us-gaap |
Increase Decrease Cash Collateral From Counterparties
IncreaseDecreaseCashCollateralFromCounterparties
|
49000000 | USD |
| CY2018Q4 | us-gaap |
Treasury Stock Shares
TreasuryStockShares
|
193803976 | shares |
| CY2017 | us-gaap |
Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost
EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost
|
0 | pure |
| CY2018Q4 | us-gaap |
Additional Paid In Capital
AdditionalPaidInCapital
|
3025000000 | USD |
| CY2018 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
|
-296000000 | USD |
| CY2016 | mbi |
Effective Income Tax Rate Reconciliation Mark To Market On Warrants
EffectiveIncomeTaxRateReconciliationMarkToMarketOnWarrants
|
-0.015 | pure |
| CY2017 | us-gaap |
Effective Income Tax Rate Reconciliation Other Adjustments
EffectiveIncomeTaxRateReconciliationOtherAdjustments
|
0.001 | pure |
| CY2016 | mbi |
Net Other Than Temporary Impairments
NetOtherThanTemporaryImpairments
|
5000000 | USD |
| CY2018 | us-gaap |
Net Income Loss Available To Common Stockholders Diluted
NetIncomeLossAvailableToCommonStockholdersDiluted
|
-296000000 | USD |
| CY2016 | us-gaap |
Proceeds From Insurance Premiums Collected
ProceedsFromInsurancePremiumsCollected
|
115000000 | USD |
| CY2018 | us-gaap |
Proceeds From Sale Of Trading Securities Heldforinvestment
ProceedsFromSaleOfTradingSecuritiesHeldforinvestment
|
212000000 | USD |
| CY2018Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
1119000000 | USD |
| CY2018Q4 | us-gaap |
Available For Sale Securities Continuous Unrealized Loss Position Fair Value
AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue
|
2420000000 | USD |
| CY2018 | dei |
Amendment Flag
AmendmentFlag
|
false | |
| CY2018 | mbi |
Proceeds From Consolidation Of Variable Interest Entity
ProceedsFromConsolidationOfVariableInterestEntity
|
0 | USD |
| CY2017 | us-gaap |
Increase Decrease In Premiums Receivable
IncreaseDecreaseInPremiumsReceivable
|
-49000000 | USD |
| CY2017 | us-gaap |
Proceeds From Notes Payable
ProceedsFromNotesPayable
|
328000000 | USD |
| CY2016 | mbi |
Revenue From Transactions With Other Operating Segments Of Same Entity
RevenueFromTransactionsWithOtherOperatingSegmentsOfSameEntity
|
0 | USD |
| CY2018Q4 | us-gaap |
Assets
Assets
|
8076000000 | USD |
| CY2016 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
-149000000 | USD |
| CY2018Q4 | us-gaap |
Minority Interest Amount Represented By Preferred Stock
MinorityInterestAmountRepresentedByPreferredStock
|
13000000 | USD |
| CY2018 | mbi |
Proceeds From Reinsurance And Recoveries
ProceedsFromReinsuranceAndRecoveries
|
61000000 | USD |
| CY2017 | us-gaap |
Proceeds From Insurance Premiums Collected
ProceedsFromInsurancePremiumsCollected
|
61000000 | USD |
| CY2017 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax
|
-22000000 | USD |
| CY2016 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
133001088 | shares |
| CY2016 | us-gaap |
Selling General And Administrative Expense
SellingGeneralAndAdministrativeExpense
|
177000000 | USD |
| CY2018 | us-gaap |
Proceeds From Insurance Premiums Collected
ProceedsFromInsurancePremiumsCollected
|
86000000 | USD |
| CY2017 | us-gaap |
Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax
OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax
|
125000000 | USD |
| CY2016 | us-gaap |
Revenue From Contract With Customer Including Assessed Tax
RevenueFromContractWithCustomerIncludingAssessedTax
|
480000000 | USD |
| CY2016 | us-gaap |
Undistributed Earnings Loss Allocated To Participating Securities Basic
UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic
|
0 | USD |
| CY2018Q4 | us-gaap |
Common Stock Value
CommonStockValue
|
284000000 | USD |
| CY2017 | us-gaap |
Stock Issued During Period Value Share Based Compensation
StockIssuedDuringPeriodValueShareBasedCompensation
|
7000000 | USD |
| CY2018Q4 | us-gaap |
Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss
AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss
|
47000000 | USD |
| CY2016 | us-gaap |
Payments For Proceeds From Derivative Instrument Investing Activities
PaymentsForProceedsFromDerivativeInstrumentInvestingActivities
|
44000000 | USD |
| CY2018Q4 | us-gaap |
Schedule Of Insured Financial Obligations With Credit Deterioration Reductions Of Gross Claim Liability Net Discount
ScheduleOfInsuredFinancialObligationsWithCreditDeteriorationReductionsOfGrossClaimLiabilityNetDiscount
|
670000000 | USD |
| CY2016 | us-gaap |
Payments For Proceeds From Short Term Investments
PaymentsForProceedsFromShortTermInvestments
|
125000000 | USD |
| CY2018Q4 | mbi |
Percentage Of Securities Book Value Exceeded Market Value
PercentageOfSecuritiesBookValueExceededMarketValue
|
0.05 | pure |
| CY2017 | us-gaap |
Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net
OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet
|
106000000 | USD |
| CY2017 | mbi |
Insurance Loss Recoverable And Changes In Recoveries Of Unpaid Losses Other
InsuranceLossRecoverableAndChangesInRecoveriesOfUnpaidLossesOther
|
6000000 | USD |
| CY2016 | us-gaap |
Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities
AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities
|
189000000 | USD |
| CY2018 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax
|
5000000 | USD |
| CY2018 | us-gaap |
Fair Value Adjustment Of Warrants
FairValueAdjustmentOfWarrants
|
0 | USD |
| CY2018 | mbi |
Other Comprehensive Income Unrealized Holding Gain Loss Arising During Period On Securities With Other Than Temporary Impairment Losses Before Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossArisingDuringPeriodOnSecuritiesWithOtherThanTemporaryImpairmentLossesBeforeTax
|
41000000 | USD |
| CY2016 | us-gaap |
Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
|
110000000 | USD |
| CY2017 | us-gaap |
Payments To Acquire Available For Sale Securities
PaymentsToAcquireAvailableForSaleSecurities
|
1811000000 | USD |
| CY2017 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
-13.5 | |
| CY2018 | us-gaap |
Increase Decrease In Accrued Liabilities
IncreaseDecreaseInAccruedLiabilities
|
-9000000 | USD |
| CY2019Q1 | dei |
Entity Common Stock Shares Outstanding
EntityCommonStockSharesOutstanding
|
89622622 | shares |
| CY2018 | us-gaap |
Financial Guarantee Insurance Contracts Premium Received Over Contract Period Premium Receivable Weighted Average Risk Free Discount Rate
FinancialGuaranteeInsuranceContractsPremiumReceivedOverContractPeriodPremiumReceivableWeightedAverageRiskFreeDiscountRate
|
0.03 | pure |
| CY2016 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-338000000 | USD |
| CY2018 | dei |
Trading Symbol
TradingSymbol
|
MBI | |
| CY2017 | us-gaap |
Benefits Losses And Expenses
BenefitsLossesAndExpenses
|
1094000000 | USD |
| CY2017 | mbi |
Other Comprehensive Income Unrealized Holding Gain Loss Arising During Period On Securities With Other Than Temporary Impairment Losses After Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossArisingDuringPeriodOnSecuritiesWithOtherThanTemporaryImpairmentLossesAfterTax
|
-3000000 | USD |
| CY2017 | mbi |
Net Other Than Temporary Impairments
NetOtherThanTemporaryImpairments
|
106000000 | USD |
| CY2018Q4 | us-gaap |
Available For Sale Securities Continuous Unrealized Loss Position Accumulated Loss
AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss
|
167000000 | USD |
| CY2018Q4 | us-gaap |
Variable Interest Entity Consolidated Carrying Amount Liabilities
VariableInterestEntityConsolidatedCarryingAmountLiabilities
|
1700000000 | USD |
| CY2017 | us-gaap |
Repayments Of Other Long Term Debt
RepaymentsOfOtherLongTermDebt
|
75000000 | USD |
| CY2017 | mbi |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale And For Writedown Of Securities Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAociForSaleAndForWritedownOfSecuritiesNetOfTax
|
-6000000 | USD |
| CY2017 | us-gaap |
Other Noncash Income Expense
OtherNoncashIncomeExpense
|
12000000 | USD |
| CY2016 | us-gaap |
Payments To Acquire Available For Sale Securities
PaymentsToAcquireAvailableForSaleSecurities
|
2661000000 | USD |
| CY2018 | dei |
Current Fiscal Year End Date
CurrentFiscalYearEndDate
|
--12-31 | |
| CY2017 | us-gaap |
Ceded Premiums Written
CededPremiumsWritten
|
1000000 | USD |
| CY2018Q4 | us-gaap |
Preferred Stock Shares Outstanding
PreferredStockSharesOutstanding
|
0 | shares |
| CY2017 | us-gaap |
Payments To Acquire Trading Securities Heldforinvestment
PaymentsToAcquireTradingSecuritiesHeldforinvestment
|
263000000 | USD |
| CY2017 | us-gaap |
Increase Decrease In Liability For Claims And Claims Adjustment Expense Reserve
IncreaseDecreaseInLiabilityForClaimsAndClaimsAdjustmentExpenseReserve
|
778000000 | USD |
| CY2017 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax
|
-2000000 | USD |
| CY2018Q4 | us-gaap |
Schedule Of Insured Financial Obligations With Credit Deterioration Gross Claim Liability
ScheduleOfInsuredFinancialObligationsWithCreditDeteriorationGrossClaimLiability
|
977000000 | USD |
| CY2018Q4 | 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
|
48000000 | USD |
| CY2018Q4 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
1132000000 | USD |
| CY2018 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
-296000000 | USD |
| CY2016 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.002 | pure |
| CY2016Q4 | us-gaap |
Cash Including Discontinued Operations
CashIncludingDiscontinuedOperations
|
73000000 | USD |
| CY2017 | mbi |
Premiums Written Financial Guarantee Insurance Contracts Percentage Of Amount Assumed To Net
PremiumsWrittenFinancialGuaranteeInsuranceContractsPercentageOfAmountAssumedToNet
|
0 | pure |
| CY2018Q4 | mbi |
Reinsurance Recoverables Secured By Letters Of Credit Or Trust Amount
ReinsuranceRecoverablesSecuredByLettersOfCreditOrTrustAmount
|
30000000 | USD |
| CY2017 | us-gaap |
Premiums Written Net
PremiumsWrittenNet
|
-2000000 | USD |
| CY2018 | us-gaap |
Effective Income Tax Rate Reconciliation Repatriation Of Foreign Earnings
EffectiveIncomeTaxRateReconciliationRepatriationOfForeignEarnings
|
0 | pure |
| CY2016 | us-gaap |
Repayments Of Other Long Term Debt
RepaymentsOfOtherLongTermDebt
|
85000000 | USD |
| CY2017 | mbi |
Proceeds From Consolidation Of Variable Interest Entity
ProceedsFromConsolidationOfVariableInterestEntity
|
18000000 | USD |
| CY2016 | us-gaap |
Cash And Cash Equivalents Period Increase Decrease
CashAndCashEquivalentsPeriodIncreaseDecrease
|
-262000000 | USD |
| CY2018 | us-gaap |
Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Before Reclassification And Tax
OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax
|
2000000 | USD |
| CY2017 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
|
-661000000 | USD |
| CY2018Q4 | us-gaap |
Deferred Tax Assets Tax Credit Carryforwards Foreign
DeferredTaxAssetsTaxCreditCarryforwardsForeign
|
62000000 | USD |
| CY2017 | us-gaap |
Increase Decrease In Interest Payable Net
IncreaseDecreaseInInterestPayableNet
|
116000000 | USD |
| CY2018 | us-gaap |
Increase Decrease Cash Collateral From Counterparties
IncreaseDecreaseCashCollateralFromCounterparties
|
0 | USD |
| CY2016 | us-gaap |
Derivative Gain Loss On Derivative Net
DerivativeGainLossOnDerivativeNet
|
-15000000 | USD |
| CY2017 | mbi |
Increase Decrease In Insurance Loss Recoverable
IncreaseDecreaseInInsuranceLossRecoverable
|
681000000 | USD |
| CY2018Q4 | us-gaap |
Commitments And Contingencies
CommitmentsAndContingencies
|
USD | |
| CY2018 | us-gaap |
Proceeds From Sale And Maturity Of Held To Maturity Securities
ProceedsFromSaleAndMaturityOfHeldToMaturitySecurities
|
0 | USD |
| CY2018Q4 | us-gaap |
Financial Guarantee Insurance Contracts Premium Expected To Be Collected More Than One And Within Two Years From Balance Sheet Date
FinancialGuaranteeInsuranceContractsPremiumExpectedToBeCollectedMoreThanOneAndWithinTwoYearsFromBalanceSheetDate
|
32000000 | USD |
| CY2017 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-1605000000 | USD |
| CY2018Q4 | us-gaap |
Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
|
1 | |
| CY2016 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
-1000000 | USD |
| CY2018 | us-gaap |
Gain Loss On Derivative Instruments Net Pretax
GainLossOnDerivativeInstrumentsNetPretax
|
-25000000 | USD |
| CY2017 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
118930282 | shares |
| CY2016 | mbi |
Increase Decrease In Insurance Loss Recoverable
IncreaseDecreaseInInsuranceLossRecoverable
|
74000000 | USD |
| CY2018Q4 | us-gaap |
Liabilities
Liabilities
|
6944000000 | USD |
| CY2018 | us-gaap |
Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities
ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities
|
329000000 | USD |
| CY2018 | us-gaap |
Proceeds From Interest And Dividends Received
ProceedsFromInterestAndDividendsReceived
|
205000000 | USD |
| CY2018Q4 | us-gaap |
Financial Guarantee Insurance Contracts Premium Expected To Be Collected More Than Four And Within Five Years From Balance Sheet Date
FinancialGuaranteeInsuranceContractsPremiumExpectedToBeCollectedMoreThanFourAndWithinFiveYearsFromBalanceSheetDate
|
23000000 | USD |
| CY2017 | us-gaap |
Increase Decrease In Deferred Policy Acquisition Costs
IncreaseDecreaseInDeferredPolicyAcquisitionCosts
|
-22000000 | USD |
| CY2017 | us-gaap |
Increase Decrease In Unearned Premiums
IncreaseDecreaseInUnearnedPremiums
|
-206000000 | USD |
| CY2017 | us-gaap |
Interest Paid Net
InterestPaidNet
|
177000000 | USD |
| CY2018 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax
|
5000000 | USD |
| CY2018 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax
|
0 | USD |
| CY2018 | us-gaap |
Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax
OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax
|
2000000 | USD |
| CY2018Q4 | mbi |
Transactions Guaranteed On Behalf Of Various Affiliates
TransactionsGuaranteedOnBehalfOfVariousAffiliates
|
2000000000 | USD |
| CY2017 | mbi |
Expenses Of Consolidated Vies
ExpensesOfConsolidatedVies
|
85000000 | USD |
| CY2017 | us-gaap |
Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Before Reclassification And Tax
OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax
|
146000000 | USD |
| CY2017 | us-gaap |
Net Income Loss Available To Common Stockholders Diluted
NetIncomeLossAvailableToCommonStockholdersDiluted
|
-1605000000 | USD |
| CY2018 | dei |
Document Period End Date
DocumentPeriodEndDate
|
2018-12-31 | |
| CY2017 | mbi |
Vie Interest Net
VieInterestNet
|
35000000 | USD |
| CY2018Q4 | 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
|
61000000 | USD |
| CY2018Q4 | us-gaap |
Preferred Stock Value
PreferredStockValue
|
0 | USD |
| CY2018 | us-gaap |
Premiums Written Net
PremiumsWrittenNet
|
2000000 | USD |
| CY2018Q4 | us-gaap |
Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
|
966000000 | USD |
| CY2016 | us-gaap |
Premiums Written Net
PremiumsWrittenNet
|
36000000 | USD |
| CY2016 | us-gaap |
Proceeds From Interest And Dividends Received
ProceedsFromInterestAndDividendsReceived
|
318000000 | USD |
| CY2017 | us-gaap |
Proceeds From Issuance Of Other Long Term Debt
ProceedsFromIssuanceOfOtherLongTermDebt
|
17000000 | USD |
| CY2017 | us-gaap |
Financial Guarantee Insurance Contracts Premium Received Over Contract Period Premium Receivable Weighted Average Risk Free Discount Rate
FinancialGuaranteeInsuranceContractsPremiumReceivedOverContractPeriodPremiumReceivableWeightedAverageRiskFreeDiscountRate
|
0.028 | pure |
| CY2018 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
89013711 | shares |
| CY2017 | us-gaap |
Interest Expense
InterestExpense
|
197000000 | USD |
| CY2018Q4 | us-gaap |
Financial Guarantee Insurance Contracts Premium Receivable Premium Expected To Be Collected
FinancialGuaranteeInsuranceContractsPremiumReceivablePremiumExpectedToBeCollected
|
357000000 | USD |
| CY2018Q4 | us-gaap |
Schedule Of Insured Financial Obligations With Credit Deterioration Reductions Of Gross Claim Liability Gross Potential Recoveries
ScheduleOfInsuredFinancialObligationsWithCreditDeteriorationReductionsOfGrossClaimLiabilityGrossPotentialRecoveries
|
2255000000 | USD |
| CY2018 | us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
0 | USD |
| CY2018 | us-gaap |
Payments For Proceeds From Short Term Investments
PaymentsForProceedsFromShortTermInvestments
|
-420000000 | USD |
| CY2018 | mbi |
Increase Decrease In Other Net Realized Gains Losses
IncreaseDecreaseInOtherNetRealizedGainsLosses
|
171000000 | USD |
| CY2018 | mbi |
Insurance Loss Recoverable And Changes In Recoveries Of Unpaid Losses Change In Assumptions
InsuranceLossRecoverableAndChangesInRecoveriesOfUnpaidLossesChangeInAssumptions
|
1091000000 | USD |
| CY2018Q4 | us-gaap |
Financial Guarantee Insurance Contracts Future Expected Premium Revenue To Be Recognized During First Quarter Following Balance Sheet Date
FinancialGuaranteeInsuranceContractsFutureExpectedPremiumRevenueToBeRecognizedDuringFirstQuarterFollowingBalanceSheetDate
|
20000000 | USD |
| CY2017 | us-gaap |
Fair Value Adjustment Of Warrants
FairValueAdjustmentOfWarrants
|
0 | USD |
| CY2017 | mbi |
Effective Income Tax Rate Reconciliation Mark To Market On Warrants
EffectiveIncomeTaxRateReconciliationMarkToMarketOnWarrants
|
0.014 | pure |
| CY2018Q4 | us-gaap |
Schedule Of Insured Financial Obligations With Credit Deterioration Insured Contractual Payments Outstanding Principal
ScheduleOfInsuredFinancialObligationsWithCreditDeteriorationInsuredContractualPaymentsOutstandingPrincipal
|
7206000000 | USD |
| CY2017 | us-gaap |
Increase Decrease Cash Collateral From Counterparties
IncreaseDecreaseCashCollateralFromCounterparties
|
4000000 | USD |
| CY2017 | mbi |
Increase Decrease In Loss Adjustment Expense Recoveries
IncreaseDecreaseInLossAdjustmentExpenseRecoveries
|
-1000000 | USD |
| CY2018 | mbi |
Expenses Of Consolidated Vies
ExpensesOfConsolidatedVies
|
98000000 | USD |
| CY2018 | us-gaap |
Financial Guarantee Insurance Contracts Premiums Receivable Adjustment Change In Period Of Contract
FinancialGuaranteeInsuranceContractsPremiumsReceivableAdjustmentChangeInPeriodOfContract
|
2000000 | USD |
| CY2016 | us-gaap |
Gains Losses On Extinguishment Of Debt
GainsLossesOnExtinguishmentOfDebt
|
5000000 | USD |
| CY2016Q4 | us-gaap |
Assets
Assets
|
11137000000 | USD |
| CY2018Q4 | us-gaap |
Premiums Receivable At Carrying Value
PremiumsReceivableAtCarryingValue
|
296000000 | USD |
| CY2018 | us-gaap |
Unrealized Gain Loss On Derivatives
UnrealizedGainLossOnDerivatives
|
31000000 | USD |
| CY2017 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
-652000000 | USD |
| CY2016 | mbi |
Increase Decrease In Other Net Realized Gains Losses
IncreaseDecreaseInOtherNetRealizedGainsLosses
|
282000000 | USD |
| CY2017 | us-gaap |
Financial Guarantee Insurance Contracts Premiums Receivable Adjustment Other Adjustments
FinancialGuaranteeInsuranceContractsPremiumsReceivableAdjustmentOtherAdjustments
|
12000000 | USD |
| CY2018Q4 | us-gaap |
Financial Guarantee Insurance Contracts Premium Expected To Be Collected More Than10 And Within15 Years From Balance Sheet Date
FinancialGuaranteeInsuranceContractsPremiumExpectedToBeCollectedMoreThan10AndWithin15YearsFromBalanceSheetDate
|
54000000 | USD |
| CY2016 | mbi |
Payments For Deconsolidation Of Variable Interest Entity
PaymentsForDeconsolidationOfVariableInterestEntity
|
8000000 | USD |
| CY2017 | us-gaap |
Undistributed Earnings Loss Allocated To Participating Securities Basic
UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic
|
0 | USD |
| CY2017 | us-gaap |
Financial Guarantee Insurance Contracts Premium Received Over Contract Period Premium Receivable Weighted Average Collection Period1
FinancialGuaranteeInsuranceContractsPremiumReceivedOverContractPeriodPremiumReceivableWeightedAverageCollectionPeriod1
|
P9Y5M12D | |
| CY2018 | us-gaap |
Other Income
OtherIncome
|
0 | USD |
| CY2018 | us-gaap |
Financial Guarantee Insurance Contracts Premium Receivable New Business Written
FinancialGuaranteeInsuranceContractsPremiumReceivableNewBusinessWritten
|
0 | USD |
| CY2018Q4 | mbi |
Investment Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions For Continuous Twelve Month Period
InvestmentSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsForContinuousTwelveMonthPeriod
|
182 | security |
| CY2016 | mbi |
Increase Decrease In Net Gains Losses On Financial Instruments At Fair Value And Foreign Exchange
IncreaseDecreaseInNetGainsLossesOnFinancialInstrumentsAtFairValueAndForeignExchange
|
84000000 | USD |
| CY2018 | mbi |
Effective Income Tax Rate Reconciliation Deferred Tax Inventory Adjustment
EffectiveIncomeTaxRateReconciliationDeferredTaxInventoryAdjustment
|
-0.01 | pure |
| CY2018 | us-gaap |
Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
|
0 | USD |
| CY2017 | us-gaap |
Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
|
109000000 | USD |
| CY2016 | mbi |
Proceeds From Reinsurance And Recoveries
ProceedsFromReinsuranceAndRecoveries
|
99000000 | USD |
| CY2016 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
1000000 | USD |
| CY2018Q4 | us-gaap |
Variable Interest Entity Consolidated Carrying Amount Assets
VariableInterestEntityConsolidatedCarryingAmountAssets
|
1700000000 | USD |
| CY2018Q4 | 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
|
69000000 | USD |
| CY2017 | us-gaap |
Financial Guarantee Insurance Contracts Premiums Receivable Accretion Of Discount On Premium Receivable
FinancialGuaranteeInsuranceContractsPremiumsReceivableAccretionOfDiscountOnPremiumReceivable
|
10000000 | USD |
| CY2018 | mbi |
Payments For Deconsolidation Of Variable Interest Entity
PaymentsForDeconsolidationOfVariableInterestEntity
|
7000000 | USD |
| CY2018 | mbi |
Collections For Cases
CollectionsForCases
|
56000000 | USD |
| CY2018 | us-gaap |
Other Comprehensive Income Foreign Currency Translation Gain Loss Arising During Period Tax
OtherComprehensiveIncomeForeignCurrencyTranslationGainLossArisingDuringPeriodTax
|
0 | USD |
| CY2016 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
-5000000 | USD |
| CY2017 | us-gaap |
Other Comprehensive Income Foreign Currency Translation Gain Loss Arising During Period Tax
OtherComprehensiveIncomeForeignCurrencyTranslationGainLossArisingDuringPeriodTax
|
21000000 | USD |
| CY2016 | us-gaap |
Increase Decrease In Deferred Policy Acquisition Costs
IncreaseDecreaseInDeferredPolicyAcquisitionCosts
|
-41000000 | USD |
| CY2016 | us-gaap |
Revenues
Revenues
|
294000000 | USD |
| CY2017 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
1000000 | USD |
| CY2018 | us-gaap |
Payments To Acquire Trading Securities Heldforinvestment
PaymentsToAcquireTradingSecuritiesHeldforinvestment
|
189000000 | USD |
| CY2017 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
-1496000000 | USD |
| CY2018 | us-gaap |
Proceeds From Sale Of Available For Sale Securities
ProceedsFromSaleOfAvailableForSaleSecurities
|
2117000000 | USD |
| CY2016 | us-gaap |
Proceeds From Issuance Of Other Long Term Debt
ProceedsFromIssuanceOfOtherLongTermDebt
|
19000000 | USD |
| CY2016 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
5000000 | USD |
| CY2018 | mbi |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale And For Writedown Of Securities Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAociForSaleAndForWritedownOfSecuritiesBeforeTax
|
-5000000 | USD |
| CY2018 | us-gaap |
Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities
AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities
|
-23000000 | USD |
| CY2018 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
1000000 | USD |
| CY2017 | mbi |
Insurance Loss Recoverable And Changes In Recoveries Of Unpaid Losses Accretion Of Recoveries
InsuranceLossRecoverableAndChangesInRecoveriesOfUnpaidLossesAccretionOfRecoveries
|
11000000 | USD |
| CY2016 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
-2.54 | |
| CY2018Q4 | us-gaap |
Operating Leases Future Minimum Payments Due
OperatingLeasesFutureMinimumPaymentsDue
|
34000000 | USD |
| CY2016 | us-gaap |
Payments To Acquire Trading Securities Heldforinvestment
PaymentsToAcquireTradingSecuritiesHeldforinvestment
|
199000000 | USD |
| CY2018 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
-266000000 | USD |
| CY2018Q4 | us-gaap |
Schedule Of Insured Financial Obligations With Credit Deterioration Insured Contractual Payments Outstanding Interest
ScheduleOfInsuredFinancialObligationsWithCreditDeteriorationInsuredContractualPaymentsOutstandingInterest
|
7655000000 | USD |
| CY2018Q4 | us-gaap |
Financial Guarantee Insurance Contracts Future Expected Premium Revenue To Be Recognized During Second Quarter Following Balance Sheet Date
FinancialGuaranteeInsuranceContractsFutureExpectedPremiumRevenueToBeRecognizedDuringSecondQuarterFollowingBalanceSheetDate
|
19000000 | USD |
| CY2017 | us-gaap |
Repayments Of Notes Payable
RepaymentsOfNotesPayable
|
368000000 | USD |
| CY2018 | us-gaap |
Payments For Operating Activities
PaymentsForOperatingActivities
|
83000000 | USD |
| CY2018Q4 | us-gaap |
Financial Guarantee Insurance Contracts Premium Expected To Be Collected During Second Quarter Following The Balance Sheet Date
FinancialGuaranteeInsuranceContractsPremiumExpectedToBeCollectedDuringSecondQuarterFollowingTheBalanceSheetDate
|
12000000 | USD |
| CY2016 | us-gaap |
Increase Decrease In Unearned Premiums
IncreaseDecreaseInUnearnedPremiums
|
-263000000 | USD |
| CY2018 | us-gaap |
Interest Paid Net
InterestPaidNet
|
146000000 | USD |
| CY2018 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
1000000 | USD |
| CY2018 | us-gaap |
Ceded Premiums Written
CededPremiumsWritten
|
1000000 | USD |
| CY2018 | mbi |
Other Comprehensive Income Unrealized Holding Gain Loss Arising During Period On Securities With Other Than Temporary Impairment Losses After Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossArisingDuringPeriodOnSecuritiesWithOtherThanTemporaryImpairmentLossesAfterTax
|
41000000 | USD |
| CY2017 | us-gaap |
Selling General And Administrative Expense
SellingGeneralAndAdministrativeExpense
|
129000000 | USD |
| CY2018Q4 | us-gaap |
Financial Guarantee Insurance Contracts Premium Expected To Be Collected More Than Five And Within10 Years From Balance Sheet Date
FinancialGuaranteeInsuranceContractsPremiumExpectedToBeCollectedMoreThanFiveAndWithin10YearsFromBalanceSheetDate
|
86000000 | USD |
| CY2018 | us-gaap |
Derivative Gain Loss On Derivative Net
DerivativeGainLossOnDerivativeNet
|
-27000000 | USD |
| CY2017 | us-gaap |
Effective Income Tax Rate Reconciliation Repatriation Of Foreign Earnings
EffectiveIncomeTaxRateReconciliationRepatriationOfForeignEarnings
|
0 | pure |
| CY2017 | mbi |
Payments For Net Realized Losses On Insured Derivatives Paid
PaymentsForNetRealizedLossesOnInsuredDerivativesPaid
|
52000000 | USD |
| CY2016 | us-gaap |
Treasury Stock Value Acquired Cost Method
TreasuryStockValueAcquiredCostMethod
|
105000000 | USD |
| CY2016 | us-gaap |
Assumed Premiums Written
AssumedPremiumsWritten
|
0 | USD |
| CY2017 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax
|
-2000000 | USD |
| CY2017 | mbi |
Revenues Of Consolidated Vies
RevenuesOfConsolidatedVies
|
185000000 | USD |
| CY2017 | mbi |
Other Comprehensive Income Unrealized Holding Gain Loss Arising During Period On Securities With Other Than Temporary Impairment Losses Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossArisingDuringPeriodOnSecuritiesWithOtherThanTemporaryImpairmentLossesTax
|
0 | USD |
| CY2018Q4 | mbi |
Financial Guarantee Insurance Contracts Future Expected Premium Revenue To Be Recognized During Sixth Through Tenth Year Following Balance Sheet Date
FinancialGuaranteeInsuranceContractsFutureExpectedPremiumRevenueToBeRecognizedDuringSixthThroughTenthYearFollowingBalanceSheetDate
|
171000000 | USD |
| CY2018 | us-gaap |
Proceeds From Notes Payable
ProceedsFromNotesPayable
|
0 | USD |
| CY2017 | us-gaap |
Payments For Proceeds From Short Term Investments
PaymentsForProceedsFromShortTermInvestments
|
67000000 | USD |
| CY2017 | mbi |
Net Gains Losses On Financial Instruments At Fair Value And Foreign Exchange
NetGainsLossesOnFinancialInstrumentsAtFairValueAndForeignExchange
|
-24000000 | USD |
| CY2018 | mbi |
Insurance Loss Recoverable And Changes In Recoveries Of Unpaid Losses Accretion Of Recoveries
InsuranceLossRecoverableAndChangesInRecoveriesOfUnpaidLossesAccretionOfRecoveries
|
26000000 | USD |
| CY2016 | us-gaap |
Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance
EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance
|
-0.022 | pure |
| CY2017 | mbi |
Revenue From Transactions With Other Operating Segments Of Same Entity
RevenueFromTransactionsWithOtherOperatingSegmentsOfSameEntity
|
0 | USD |
| CY2018Q4 | us-gaap |
Preferred Stock Par Or Stated Value Per Share
PreferredStockParOrStatedValuePerShare
|
1 | |
| CY2016 | us-gaap |
Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
|
-5000000 | USD |
| CY2018Q4 | mbi |
Financial Guarantee Insurance Contracts Future Expected Premium Revenue To Be Recognized During Sixteenth Year And Thereafter Following Balance Sheet Date
FinancialGuaranteeInsuranceContractsFutureExpectedPremiumRevenueToBeRecognizedDuringSixteenthYearAndThereafterFollowingBalanceSheetDate
|
90000000 | USD |
| CY2016 | mbi |
Effective Income Tax Rate Reconciliation Deferred Tax Inventory Adjustment
EffectiveIncomeTaxRateReconciliationDeferredTaxInventoryAdjustment
|
0.036 | pure |
| CY2016 | us-gaap |
Proceeds From Sale And Maturity Of Held To Maturity Securities
ProceedsFromSaleAndMaturityOfHeldToMaturitySecurities
|
1799000000 | USD |
| CY2017 | us-gaap |
Financial Guarantee Insurance Contracts Premium Receivable New Business Written
FinancialGuaranteeInsuranceContractsPremiumReceivableNewBusinessWritten
|
3000000 | USD |
| CY2018 | us-gaap |
Proceeds From Sale And Collection Of Loans Receivable
ProceedsFromSaleAndCollectionOfLoansReceivable
|
614000000 | USD |
| CY2018 | mbi |
Increase Decrease In Net Gains Losses On Financial Instruments At Fair Value And Foreign Exchange
IncreaseDecreaseInNetGainsLossesOnFinancialInstrumentsAtFairValueAndForeignExchange
|
8000000 | USD |
| CY2018 | mbi |
Increase Decrease In Loss Adjustment Expense Recoveries
IncreaseDecreaseInLossAdjustmentExpenseRecoveries
|
-8000000 | USD |
| CY2017 | us-gaap |
Gains Losses On Extinguishment Of Debt
GainsLossesOnExtinguishmentOfDebt
|
28000000 | USD |
| CY2018 | us-gaap |
Financial Guarantee Insurance Contracts Premiums Receivable Accretion Of Discount On Premium Receivable
FinancialGuaranteeInsuranceContractsPremiumsReceivableAccretionOfDiscountOnPremiumReceivable
|
9000000 | USD |
| CY2018Q4 | 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
|
55000000 | USD |
| CY2016 | us-gaap |
Proceeds From Sale Of Trading Securities Heldforinvestment
ProceedsFromSaleOfTradingSecuritiesHeldforinvestment
|
260000000 | USD |
| CY2017 | us-gaap |
Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
|
330000000 | USD |
| CY2018 | us-gaap |
Cash And Cash Equivalents Period Increase Decrease
CashAndCashEquivalentsPeriodIncreaseDecrease
|
134000000 | USD |
| CY2017 | us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
23000000 | USD |
| CY2017 | us-gaap |
Other Income
OtherIncome
|
31000000 | USD |
| CY2017 | mbi |
Premiums Earned Net Financial Guarantee Insurance Contracts And Insured Derivatives
PremiumsEarnedNetFinancialGuaranteeInsuranceContractsAndInsuredDerivatives
|
202000000 | USD |
| CY2018 | us-gaap |
Other Noncash Income Expense
OtherNoncashIncomeExpense
|
-18000000 | USD |
| CY2018 | us-gaap |
Repayments Of Medium Term Notes
RepaymentsOfMediumTermNotes
|
85000000 | USD |
| CY2017 | us-gaap |
Proceeds From Sale And Maturity Of Held To Maturity Securities
ProceedsFromSaleAndMaturityOfHeldToMaturitySecurities
|
0 | USD |
| CY2016 | mbi |
Premiums Earned Net Financial Guarantee Insurance Contracts And Insured Derivatives
PremiumsEarnedNetFinancialGuaranteeInsuranceContractsAndInsuredDerivatives
|
304000000 | USD |
| CY2017 | us-gaap |
Incremental Common Shares Attributable To Share Based Payment Arrangements
IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
|
0 | shares |
| CY2016 | us-gaap |
Other Income
OtherIncome
|
-282000000 | USD |
| CY2016 | us-gaap |
Effective Income Tax Rate Reconciliation Other Adjustments
EffectiveIncomeTaxRateReconciliationOtherAdjustments
|
-0.003 | pure |
| CY2016 | us-gaap |
Direct Premiums Written
DirectPremiumsWritten
|
37000000 | USD |
| CY2017 | mbi |
Proceeds From Reinsurance And Recoveries
ProceedsFromReinsuranceAndRecoveries
|
170000000 | USD |
| CY2016 | us-gaap |
Stock Issued During Period Value Share Based Compensation
StockIssuedDuringPeriodValueShareBasedCompensation
|
8000000 | USD |
| CY2016 | mbi |
Proceeds From Consolidation Of Variable Interest Entity
ProceedsFromConsolidationOfVariableInterestEntity
|
9000000 | USD |
| CY2017 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
940000000 | USD |
| CY2018 | mbi |
Insurance Loss Recoverable And Changes In Recoveries Of Unpaid Losses Other
InsuranceLossRecoverableAndChangesInRecoveriesOfUnpaidLossesOther
|
-2000000 | USD |
| CY2017 | mbi |
Insurance Loss Recoverable And Changes In Recoveries Of Unpaid Losses Change In Discount Rate
InsuranceLossRecoverableAndChangesInRecoveriesOfUnpaidLossesChangeInDiscountRate
|
3000000 | USD |
| CY2018 | us-gaap |
Increase Decrease In Deferred Policy Acquisition Costs
IncreaseDecreaseInDeferredPolicyAcquisitionCosts
|
-21000000 | USD |
| CY2018Q4 | us-gaap |
Financial Guarantee Insurance Contracts Future Expected Premium Revenue To Be Recognized During Third Quarter Following Balance Sheet Date
FinancialGuaranteeInsuranceContractsFutureExpectedPremiumRevenueToBeRecognizedDuringThirdQuarterFollowingBalanceSheetDate
|
19000000 | USD |
| CY2018 | us-gaap |
Payments For Proceeds From Derivative Instrument Investing Activities
PaymentsForProceedsFromDerivativeInstrumentInvestingActivities
|
24000000 | USD |
| CY2017 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax
|
-1000000 | USD |
| CY2018Q4 | us-gaap |
Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss
AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss
|
120000000 | USD |
| CY2017 | mbi |
Increase Decrease In Other Net Realized Gains Losses
IncreaseDecreaseInOtherNetRealizedGainsLosses
|
-59000000 | USD |
| CY2017 | mbi |
Increase Decrease In Net Gains Losses On Financial Instruments At Fair Value And Foreign Exchange
IncreaseDecreaseInNetGainsLossesOnFinancialInstrumentsAtFairValueAndForeignExchange
|
106000000 | USD |
| CY2018 | us-gaap |
Increase Decrease In Interest Payable Net
IncreaseDecreaseInInterestPayableNet
|
157000000 | USD |
| CY2018Q4 | us-gaap |
Schedule Of Insured Financial Obligations With Credit Deterioration Statement Of Financial Position Unearned Premium Revenue
ScheduleOfInsuredFinancialObligationsWithCreditDeteriorationStatementOfFinancialPositionUnearnedPremiumRevenue
|
72000000 | USD |
| CY2017 | us-gaap |
Financial Guarantee Insurance Contracts Premiums Receivable Adjustment Change In Period Of Contract
FinancialGuaranteeInsuranceContractsPremiumsReceivableAdjustmentChangeInPeriodOfContract
|
-15000000 | USD |
| CY2016 | us-gaap |
Payments For Losses And Loss Adjustment Expense
PaymentsForLossesAndLossAdjustmentExpense
|
351000000 | USD |
| CY2018 | us-gaap |
Proceeds From Issuance Of Other Long Term Debt
ProceedsFromIssuanceOfOtherLongTermDebt
|
12000000 | USD |
| CY2018 | mbi |
Premiums Written Financial Guarantee Insurance Contracts Percentage Of Amount Assumed To Net
PremiumsWrittenFinancialGuaranteeInsuranceContractsPercentageOfAmountAssumedToNet
|
0 | pure |
| CY2018 | us-gaap |
Effective Income Tax Rate Reconciliation Other Adjustments
EffectiveIncomeTaxRateReconciliationOtherAdjustments
|
0.016 | pure |
| CY2016 | us-gaap |
Effective Income Tax Rate Reconciliation Repatriation Of Foreign Earnings
EffectiveIncomeTaxRateReconciliationRepatriationOfForeignEarnings
|
-0.33 | pure |
| CY2016 | us-gaap |
Increase Decrease In Premiums Receivable
IncreaseDecreaseInPremiumsReceivable
|
-75000000 | USD |
| CY2018 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
0 | USD |
| CY2018 | us-gaap |
Financial Guarantee Insurance Contracts Premiums Receivable Adjustment Other Adjustments
FinancialGuaranteeInsuranceContractsPremiumsReceivableAdjustmentOtherAdjustments
|
-10000000 | USD |
| CY2017 | mbi |
Insurance Loss Recoverable And Changes In Recoveries Of Unpaid Losses Change In Assumptions
InsuranceLossRecoverableAndChangesInRecoveriesOfUnpaidLossesChangeInAssumptions
|
68000000 | USD |
| CY2016 | us-gaap |
Benefits Losses And Expenses
BenefitsLossesAndExpenses
|
633000000 | USD |
| CY2017 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
|
-21000000 | USD |
| CY2016Q4 | mbi |
Insurance Loss Recoverable And Changes In Recoveries Of Unpaid Losses
InsuranceLossRecoverableAndChangesInRecoveriesOfUnpaidLosses
|
583000000 | USD |
| CY2017 | us-gaap |
Gain Loss On Derivative Instruments Net Pretax
GainLossOnDerivativeInstrumentsNetPretax
|
-51000000 | USD |
| CY2016 | mbi |
Payments For Net Realized Losses On Insured Derivatives Paid
PaymentsForNetRealizedLossesOnInsuredDerivativesPaid
|
43000000 | USD |
| CY2016 | us-gaap |
Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities
ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities
|
680000000 | USD |
| CY2018 | us-gaap |
Payments To Acquire Available For Sale Securities
PaymentsToAcquireAvailableForSaleSecurities
|
2265000000 | USD |
| CY2017 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
944000000 | USD |
| CY2018Q4 | us-gaap |
Schedule Of Insured Financial Obligations With Credit Deterioration Number Of Contracts Issued And Outstanding
ScheduleOfInsuredFinancialObligationsWithCreditDeteriorationNumberOfContractsIssuedAndOutstanding
|
121 | |
| CY2016 | us-gaap |
Repayments Of Medium Term Notes
RepaymentsOfMediumTermNotes
|
120000000 | USD |
| CY2016 | us-gaap |
Ceded Premiums Written
CededPremiumsWritten
|
1000000 | USD |
| CY2017 | mbi |
Effective Income Tax Rate Reconciliation Deferred Tax Inventory Adjustment
EffectiveIncomeTaxRateReconciliationDeferredTaxInventoryAdjustment
|
0.008 | pure |
| CY2016 | us-gaap |
Other Noncash Income Expense
OtherNoncashIncomeExpense
|
-38000000 | USD |
| CY2018Q4 | mbi |
Financial Guarantee Insurance Contracts Future Expected Premium Revenue To Be Recognized During Eleventh Through Fifteenth Year Following Balance Sheet Date
FinancialGuaranteeInsuranceContractsFutureExpectedPremiumRevenueToBeRecognizedDuringEleventhThroughFifteenthYearFollowingBalanceSheetDate
|
91000000 | USD |
| CY2016 | us-gaap |
Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net
OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet
|
5000000 | USD |
| CY2018Q4 | us-gaap |
Financial Guarantee Insurance Contracts Premium Expected To Be Collected During First Quarter Following Balance Sheet Date
FinancialGuaranteeInsuranceContractsPremiumExpectedToBeCollectedDuringFirstQuarterFollowingBalanceSheetDate
|
4000000 | USD |
| CY2016 | us-gaap |
Undistributed Earnings Loss Allocated To Participating Securities Diluted
UndistributedEarningsLossAllocatedToParticipatingSecuritiesDiluted
|
0 | USD |
| CY2017 | us-gaap |
Proceeds From Sale Of Trading Securities Heldforinvestment
ProceedsFromSaleOfTradingSecuritiesHeldforinvestment
|
326000000 | USD |
| CY2018 | us-gaap |
Financial Guarantee Insurance Contracts Claim Liability Weighted Average Risk Free Discount Rate
FinancialGuaranteeInsuranceContractsClaimLiabilityWeightedAverageRiskFreeDiscountRate
|
0.0279 | pure |
| CY2018 | mbi |
Revenue From Transactions With Other Operating Segments Of Same Entity
RevenueFromTransactionsWithOtherOperatingSegmentsOfSameEntity
|
0 | USD |
| CY2018 | mbi |
Weighted Average Contractual Maturity Period Of Securities Unrealized Loss Position
WeightedAverageContractualMaturityPeriodOfSecuritiesUnrealizedLossPosition
|
P11Y | |
| CY2018Q4 | us-gaap |
Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held
OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld
|
37000000 | USD |
| CY2018 | us-gaap |
Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions Additional Credit Losses
OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsAdditionalCreditLosses
|
5000000 | USD |
| CY2018 | us-gaap |
Gains Losses On Extinguishment Of Debt
GainsLossesOnExtinguishmentOfDebt
|
3000000 | USD |
| CY2018 | mbi |
Expense From Transactions With Other Operating Segments Of Same Entity
ExpenseFromTransactionsWithOtherOperatingSegmentsOfSameEntity
|
0 | USD |
| CY2018 | us-gaap |
Noncash Or Part Noncash Divestiture Amount Of Consideration Received1
NoncashOrPartNoncashDivestitureAmountOfConsiderationReceived1
|
0 | USD |
| CY2018Q4 | us-gaap |
Available For Sale Securities Amortized Cost
AvailableForSaleSecuritiesAmortizedCost
|
3817000000 | USD |
| CY2018Q4 | us-gaap |
Available For Sale Securities Accumulated Gross Unrealized Gain Before Tax
AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
|
131000000 | USD |
| CY2018Q4 | us-gaap |
Available For Sale Securities Accumulated Gross Unrealized Loss Before Tax
AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
|
167000000 | USD |
| CY2018Q4 | us-gaap |
Available For Sale Securities
AvailableForSaleSecurities
|
3781000000 | USD |
| CY2018Q4 | mbi |
Available For Sale Cumulative Other Than Temporary Impairment Of Securities
AvailableForSaleCumulativeOtherThanTemporaryImpairmentOfSecurities
|
26000000 | USD |
| CY2015Q4 | us-gaap |
Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held
OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld
|
26000000 | USD |
| CY2017Q4 | us-gaap |
Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held
OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld
|
32000000 | USD |
| CY2018 | us-gaap |
Proceeds From Sale Of Available For Sale Securities Debt
ProceedsFromSaleOfAvailableForSaleSecuritiesDebt
|
2117000000 | USD |
| CY2018 | us-gaap |
Available For Sale Securities Gross Realized Gains
AvailableForSaleSecuritiesGrossRealizedGains
|
6000000 | USD |
| CY2018 | us-gaap |
Available For Sale Securities Gross Realized Losses
AvailableForSaleSecuritiesGrossRealizedLosses
|
19000000 | USD |
| CY2017 | us-gaap |
Proceeds From Sale Of Available For Sale Securities Debt
ProceedsFromSaleOfAvailableForSaleSecuritiesDebt
|
2256000000 | USD |
| CY2017 | us-gaap |
Available For Sale Securities Gross Realized Gains
AvailableForSaleSecuritiesGrossRealizedGains
|
40000000 | USD |
| CY2017 | us-gaap |
Available For Sale Securities Gross Realized Losses
AvailableForSaleSecuritiesGrossRealizedLosses
|
22000000 | USD |
| CY2017 | us-gaap |
Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions Additional Credit Losses
OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsAdditionalCreditLosses
|
5000000 | USD |
| CY2017 | mbi |
Unvested Restricted Stock And Units That Receive Nonforfeitable Dividends Or Dividend Equivalents That Have Met Service Condition
UnvestedRestrictedStockAndUnitsThatReceiveNonforfeitableDividendsOrDividendEquivalentsThatHaveMetServiceCondition
|
311772 | shares |
| CY2018 | mbi |
Unvested Restricted Stock And Units That Receive Nonforfeitable Dividends Or Dividend Equivalents That Have Met Service Condition
UnvestedRestrictedStockAndUnitsThatReceiveNonforfeitableDividendsOrDividendEquivalentsThatHaveMetServiceCondition
|
815453 | shares |
| CY2017 | us-gaap |
Noncash Or Part Noncash Divestiture Amount Of Consideration Received1
NoncashOrPartNoncashDivestitureAmountOfConsiderationReceived1
|
332000000 | USD |
| CY2018 | us-gaap |
Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions No Previous Impairment
OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsNoPreviousImpairment
|
0 | USD |
| CY2017 | us-gaap |
Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions No Previous Impairment
OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsNoPreviousImpairment
|
11000000 | USD |
| CY2018 | us-gaap |
Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Securities Sold
OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsSecuritiesSold
|
0 | USD |
| CY2018 | us-gaap |
Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Change In Status
OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsChangeInStatus
|
0 | USD |
| CY2018Q4 | mbi |
Accumulatedothercomprehensiveincomelossdeferredincometaxes
Accumulatedothercomprehensiveincomelossdeferredincometaxes
|
8000000 | USD |
| CY2017Q4 | us-gaap |
Variable Interest Entity Consolidated Carrying Amount Assets
VariableInterestEntityConsolidatedCarryingAmountAssets
|
3200000000 | USD |
| CY2017Q4 | us-gaap |
Variable Interest Entity Consolidated Carrying Amount Liabilities
VariableInterestEntityConsolidatedCarryingAmountLiabilities
|
2300000000 | USD |
| CY2015Q4 | us-gaap |
Premiums Receivable At Carrying Value
PremiumsReceivableAtCarryingValue
|
409000000 | USD |
| CY2017Q4 | us-gaap |
Premiums Receivable At Carrying Value
PremiumsReceivableAtCarryingValue
|
369000000 | USD |
| CY2017Q4 | us-gaap |
Assets
Assets
|
9095000000 | USD |
| CY2017Q4 | us-gaap |
Liabilities
Liabilities
|
7670000000 | USD |
| CY2017Q4 | us-gaap |
Treasury Stock Value
TreasuryStockValue
|
3118000000 | USD |
| CY2017Q4 | us-gaap |
Common Stock Value
CommonStockValue
|
284000000 | USD |
| CY2017Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
|
-19000000 | USD |
| CY2017Q4 | us-gaap |
Additional Paid In Capital
AdditionalPaidInCapital
|
3171000000 | USD |
| CY2017Q4 | us-gaap |
Preferred Stock Value
PreferredStockValue
|
0 | USD |
| CY2017Q4 | us-gaap |
Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
|
1095000000 | USD |
| CY2017Q4 | us-gaap |
Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
|
9095000000 | USD |
| CY2017Q4 | us-gaap |
Minority Interest Amount Represented By Preferred Stock
MinorityInterestAmountRepresentedByPreferredStock
|
12000000 | USD |
| CY2017Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
1413000000 | USD |
| CY2017Q4 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
1425000000 | USD |
| CY2017Q4 | us-gaap |
Commitments And Contingencies
CommitmentsAndContingencies
|
USD | |
| CY2017Q4 | us-gaap |
Preferred Stock Shares Authorized
PreferredStockSharesAuthorized
|
10000000 | shares |
| CY2017Q4 | us-gaap |
Preferred Stock Shares Issued
PreferredStockSharesIssued
|
0 | shares |
| CY2017Q4 | us-gaap |
Preferred Stock Par Or Stated Value Per Share
PreferredStockParOrStatedValuePerShare
|
1 | |
| CY2017Q4 | us-gaap |
Preferred Stock Shares Outstanding
PreferredStockSharesOutstanding
|
0 | shares |
| CY2017Q4 | us-gaap |
Common Stock Shares Authorized
CommonStockSharesAuthorized
|
400000000 | shares |
| CY2017Q4 | us-gaap |
Common Stock Shares Issued
CommonStockSharesIssued
|
283717973 | shares |
| CY2017Q4 | us-gaap |
Treasury Stock Shares
TreasuryStockShares
|
192233526 | shares |
| CY2017Q4 | us-gaap |
Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
|
1 | |
| CY2017Q4 | mbi |
Accumulatedothercomprehensiveincomelossdeferredincometaxes
Accumulatedothercomprehensiveincomelossdeferredincometaxes
|
16000000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax
|
28000000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax
|
7000000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
|
21000000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax
|
1000000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax
|
-1000000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax
|
2000000 | USD |
| CY2016 | mbi |
Other Comprehensive Income Unrealized Holding Gain Loss Arising During Period On Securities With Other Than Temporary Impairment Losses Before Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossArisingDuringPeriodOnSecuritiesWithOtherThanTemporaryImpairmentLossesBeforeTax
|
10000000 | USD |
| CY2016 | mbi |
Other Comprehensive Income Unrealized Holding Gain Loss Arising During Period On Securities With Other Than Temporary Impairment Losses Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossArisingDuringPeriodOnSecuritiesWithOtherThanTemporaryImpairmentLossesTax
|
4000000 | USD |
| CY2016 | mbi |
Other Comprehensive Income Unrealized Holding Gain Loss Arising During Period On Securities With Other Than Temporary Impairment Losses After Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossArisingDuringPeriodOnSecuritiesWithOtherThanTemporaryImpairmentLossesAfterTax
|
6000000 | USD |
| CY2016 | mbi |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale And For Writedown Of Securities Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAociForSaleAndForWritedownOfSecuritiesBeforeTax
|
-4000000 | USD |
| CY2016 | mbi |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale And For Writedown Of Securities Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAociForSaleAndForWritedownOfSecuritiesTax
|
-1000000 | USD |
| CY2016 | mbi |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale And For Writedown Of Securities Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAociForSaleAndForWritedownOfSecuritiesNetOfTax
|
-3000000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Before Reclassification And Tax
OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax
|
-94000000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Foreign Currency Translation Gain Loss Arising During Period Tax
OtherComprehensiveIncomeForeignCurrencyTranslationGainLossArisingDuringPeriodTax
|
1000000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax
OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax
|
-95000000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
|
-67000000 | USD |
| CY2016 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
-405000000 | USD |
| CY2015Q4 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
3741000000 | USD |
| CY2017Q4 | us-gaap |
Cash Including Discontinued Operations
CashIncludingDiscontinuedOperations
|
0 | USD |
| CY2017Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
146000000 | USD |
| CY2017Q4 | us-gaap |
Liabilities Fair Value Disclosure
LiabilitiesFairValueDisclosure
|
1459000000 | USD |
| CY2017Q4 | us-gaap |
Available For Sale Securities Amortized Cost
AvailableForSaleSecuritiesAmortizedCost
|
4438000000 | USD |
| CY2017Q4 | us-gaap |
Available For Sale Securities Accumulated Gross Unrealized Gain Before Tax
AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
|
91000000 | USD |
| CY2017Q4 | us-gaap |
Available For Sale Securities Accumulated Gross Unrealized Loss Before Tax
AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
|
106000000 | USD |
| CY2017Q4 | us-gaap |
Available For Sale Securities
AvailableForSaleSecurities
|
4423000000 | USD |
| CY2017Q4 | mbi |
Available For Sale Cumulative Other Than Temporary Impairment Of Securities
AvailableForSaleCumulativeOtherThanTemporaryImpairmentOfSecurities
|
71000000 | USD |
| CY2016 | us-gaap |
Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions Additional Credit Losses
OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsAdditionalCreditLosses
|
4000000 | USD |
| CY2017 | us-gaap |
Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Securities Sold
OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsSecuritiesSold
|
2000000 | USD |
| CY2016 | us-gaap |
Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Securities Sold
OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsSecuritiesSold
|
1000000 | USD |
| CY2016 | us-gaap |
Proceeds From Sale Of Available For Sale Securities Debt
ProceedsFromSaleOfAvailableForSaleSecuritiesDebt
|
2412000000 | USD |
| CY2016 | us-gaap |
Available For Sale Securities Gross Realized Gains
AvailableForSaleSecuritiesGrossRealizedGains
|
84000000 | USD |
| CY2016 | us-gaap |
Available For Sale Securities Gross Realized Losses
AvailableForSaleSecuritiesGrossRealizedLosses
|
23000000 | USD |
| CY2018Q4 | us-gaap |
Interest Payable Current And Noncurrent
InterestPayableCurrentAndNoncurrent
|
751000000 | USD |
| CY2018Q4 | mbi |
Issuancecostsdebt
Issuancecostsdebt
|
15000000 | USD |
| CY2018Q4 | us-gaap |
Long Term Debt Noncurrent
LongTermDebtNoncurrent
|
2249000000 | USD |
| CY2017Q4 | us-gaap |
Interest Payable Current And Noncurrent
InterestPayableCurrentAndNoncurrent
|
624000000 | USD |
| CY2017Q4 | mbi |
Issuancecostsdebt
Issuancecostsdebt
|
16000000 | USD |
| CY2017Q4 | us-gaap |
Long Term Debt Noncurrent
LongTermDebtNoncurrent
|
2121000000 | USD |
| CY2018Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Five
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive
|
0 | USD |
| CY2018Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal After Year Five
LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive
|
1248000000 | USD |
| CY2018Q4 | us-gaap |
Long Term Debt
LongTermDebt
|
1513000000 | USD |
| CY2018 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0 | pure |
| CY2017 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
-1.428 | pure |
| CY2016Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
|
237800 | shares |
| CY2017Q4 | mbi |
Insurance Loss Recoverable And Changes In Recoveries Of Unpaid Losses
InsuranceLossRecoverableAndChangesInRecoveriesOfUnpaidLosses
|
546000000 | USD |
| CY2017Q4 | us-gaap |
Security Owned And Pledged As Collateral Fair Value
SecurityOwnedAndPledgedAsCollateralFairValue
|
353000000 | USD |
| CY2017Q4 | mbi |
Investment Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions For Continuous Twelve Month Period
InvestmentSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsForContinuousTwelveMonthPeriod
|
133 | security |
| CY2017Q4 | us-gaap |
Schedule Of Insured Financial Obligations With Credit Deterioration Reductions Of Gross Claim Liability Net Discount
ScheduleOfInsuredFinancialObligationsWithCreditDeteriorationReductionsOfGrossClaimLiabilityNetDiscount
|
178000000 | USD |
| CY2017Q4 | us-gaap |
Schedule Of Insured Financial Obligations With Credit Deterioration Gross Claim Liability
ScheduleOfInsuredFinancialObligationsWithCreditDeteriorationGrossClaimLiability
|
1082000000 | USD |
| CY2017Q4 | us-gaap |
Schedule Of Insured Financial Obligations With Credit Deterioration Reductions Of Gross Claim Liability Gross Potential Recoveries
ScheduleOfInsuredFinancialObligationsWithCreditDeteriorationReductionsOfGrossClaimLiabilityGrossPotentialRecoveries
|
782000000 | USD |
| CY2017Q4 | us-gaap |
Schedule Of Insured Financial Obligations With Credit Deterioration Insured Contractual Payments Outstanding Principal
ScheduleOfInsuredFinancialObligationsWithCreditDeteriorationInsuredContractualPaymentsOutstandingPrincipal
|
8964000000 | USD |
| CY2017Q4 | us-gaap |
Schedule Of Insured Financial Obligations With Credit Deterioration Insured Contractual Payments Outstanding Interest
ScheduleOfInsuredFinancialObligationsWithCreditDeteriorationInsuredContractualPaymentsOutstandingInterest
|
8481000000 | USD |
| CY2017Q4 | us-gaap |
Schedule Of Insured Financial Obligations With Credit Deterioration Statement Of Financial Position Unearned Premium Revenue
ScheduleOfInsuredFinancialObligationsWithCreditDeteriorationStatementOfFinancialPositionUnearnedPremiumRevenue
|
90000000 | USD |
| CY2017Q4 | us-gaap |
Schedule Of Insured Financial Obligations With Credit Deterioration Number Of Contracts Issued And Outstanding
ScheduleOfInsuredFinancialObligationsWithCreditDeteriorationNumberOfContractsIssuedAndOutstanding
|
144 | |
| CY2017Q4 | mbi |
Aggregate Amount Insurance In Force Outstanding Ceded To Reinsurers
AggregateAmountInsuranceInForceOutstandingCededToReinsurers
|
5100000000 | USD |
| CY2017Q4 | mbi |
Aggregate Amount Of Insured Par Outstanding Ceded To Reinsurers
AggregateAmountOfInsuredParOutstandingCededToReinsurers
|
2700000000 | USD |
| CY2017Q4 | us-gaap |
Reinsurance Payable
ReinsurancePayable
|
25000000 | USD |
| CY2017Q4 | us-gaap |
Derivative Collateral Right To Reclaim Cash
DerivativeCollateralRightToReclaimCash
|
0 | USD |
| CY2016 | us-gaap |
Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions No Previous Impairment
OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsNoPreviousImpairment
|
0 | USD |
| CY2018Q4 | mbi |
Approximate Percentage Of Level3 Assets At Fair Value In Total Assets Measured At Fair Value
ApproximatePercentageOfLevel3AssetsAtFairValueInTotalAssetsMeasuredAtFairValue
|
0.12 | pure |
| CY2018Q4 | mbi |
Approximate Percentage Of Level3 Liabilities At Fair Value In Total Liabilities Measured At Fair Value
ApproximatePercentageOfLevel3LiabilitiesAtFairValueInTotalLiabilitiesMeasuredAtFairValue
|
0.65 | pure |
| CY2017Q4 | mbi |
Approximate Percentage Of Level3 Assets At Fair Value In Total Assets Measured At Fair Value
ApproximatePercentageOfLevel3AssetsAtFairValueInTotalAssetsMeasuredAtFairValue
|
0.3 | pure |
| CY2017Q4 | mbi |
Approximate Percentage Of Level3 Liabilities At Fair Value In Total Liabilities Measured At Fair Value
ApproximatePercentageOfLevel3LiabilitiesAtFairValueInTotalLiabilitiesMeasuredAtFairValue
|
0.41 | pure |
| CY2017Q4 | mbi |
Percentage Of Securities Book Value Exceeded Market Value
PercentageOfSecuritiesBookValueExceededMarketValue
|
0.05 | pure |
| CY2018Q4 | mbi |
Number Of Credit Support Annexes
NumberOfCreditSupportAnnexes
|
1 | pure |
| CY2017Q4 | mbi |
Number Of Credit Support Annexes
NumberOfCreditSupportAnnexes
|
1 | pure |
| CY2018Q4 | mbi |
Insured Financial Obligations Insured Contractual Payments Outstanding Gross
InsuredFinancialObligationsInsuredContractualPaymentsOutstandingGross
|
128100000000 | USD |
| CY2018Q4 | mbi |
Insured Financial Obligations Insured Contractual Payments As Percentage Of Total Insured Contractual Obligations
InsuredFinancialObligationsInsuredContractualPaymentsAsPercentageOfTotalInsuredContractualObligations
|
1 | pure |
| CY2017Q4 | mbi |
Insured Financial Obligations Insured Contractual Payments Outstanding Gross
InsuredFinancialObligationsInsuredContractualPaymentsOutstandingGross
|
154900000000 | USD |
| CY2017Q4 | mbi |
Insured Financial Obligations Insured Contractual Payments As Percentage Of Total Insured Contractual Obligations
InsuredFinancialObligationsInsuredContractualPaymentsAsPercentageOfTotalInsuredContractualObligations
|
1 | pure |
| CY2018Q4 | mbi |
Insured Financial Obligations Outstanding Principal Amount Gross
InsuredFinancialObligationsOutstandingPrincipalAmountGross
|
69800000000 | USD |
| CY2017Q4 | mbi |
Insured Financial Obligations Outstanding Principal Amount Gross
InsuredFinancialObligationsOutstandingPrincipalAmountGross
|
87000000000 | USD |
| CY2017Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
0 | USD |
| CY2018Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
0 | USD |
| CY2018 | us-gaap |
Stock Issued During Period Shares Stock Options Exercised
StockIssuedDuringPeriodSharesStockOptionsExercised
|
0 | shares |
| CY2018 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod
|
0 | shares |
| CY2017 | us-gaap |
Stock Issued During Period Shares Stock Options Exercised
StockIssuedDuringPeriodSharesStockOptionsExercised
|
200000 | shares |
| CY2017 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod
|
37800 | shares |
| CY2016 | us-gaap |
Stock Issued During Period Shares Stock Options Exercised
StockIssuedDuringPeriodSharesStockOptionsExercised
|
2050000 | shares |
| CY2016 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod
|
37500 | shares |
| CY2018 | us-gaap |
Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price
ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice
|
0 | |
| CY2018 | us-gaap |
Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price
ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice
|
0 | |
| CY2017 | us-gaap |
Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price
ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice
|
5.05 | |
| CY2017 | us-gaap |
Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price
ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice
|
65.5624 | |
| CY2016 | us-gaap |
Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price
ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice
|
4.4722 | |
| CY2016 | us-gaap |
Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price
ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice
|
57.51 | |
| CY2018Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
|
0 | shares |
| CY2015Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
|
2325300 | shares |
| CY2016Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
|
237800 | shares |
| CY2017Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
|
0 | shares |
| CY2018Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
|
0 | shares |
| CY2015Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
|
6.3703 | |
| CY2017Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
|
0 | |
| CY2018Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
|
0 | |
| CY2016Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
|
14.6689 | |
| CY2017Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
|
0 | |
| CY2018Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
|
0 | |
| CY2018 | us-gaap |
Treasury Stock Shares Acquired
TreasuryStockSharesAcquired
|
5800000 | shares |
| CY2017 | us-gaap |
Treasury Stock Shares Acquired
TreasuryStockSharesAcquired
|
43000000 | shares |
| CY2018 | us-gaap |
Treasury Stock Acquired Average Cost Per Share
TreasuryStockAcquiredAverageCostPerShare
|
8.21 | |
| CY2017 | us-gaap |
Treasury Stock Acquired Average Cost Per Share
TreasuryStockAcquiredAverageCostPerShare
|
7.55 | |
| CY2018Q4 | us-gaap |
Stock Repurchase Program Remaining Authorized Repurchase Amount1
StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1
|
202000000 | USD |
| CY2017Q4 | us-gaap |
Stock Repurchase Program Remaining Authorized Repurchase Amount1
StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1
|
250000000 | USD |
| CY2018 | us-gaap |
Weighted Average Number Diluted Shares Outstanding Adjustment
WeightedAverageNumberDilutedSharesOutstandingAdjustment
|
4352031 | shares |
| CY2017 | us-gaap |
Weighted Average Number Diluted Shares Outstanding Adjustment
WeightedAverageNumberDilutedSharesOutstandingAdjustment
|
14127112 | shares |
| CY2016 | us-gaap |
Weighted Average Number Diluted Shares Outstanding Adjustment
WeightedAverageNumberDilutedSharesOutstandingAdjustment
|
16506438 | shares |
| CY2016 | mbi |
Unvested Restricted Stock And Units That Receive Nonforfeitable Dividends Or Dividend Equivalents That Have Met Service Condition
UnvestedRestrictedStockAndUnitsThatReceiveNonforfeitableDividendsOrDividendEquivalentsThatHaveMetServiceCondition
|
930406 | shares |
| CY2017 | us-gaap |
Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Change In Status
OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsChangeInStatus
|
11000000 | USD |
| CY2016 | us-gaap |
Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Change In Status
OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsChangeInStatus
|
0 | USD |
| CY2018 | us-gaap |
Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential
EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential
|
0 | pure |
| CY2017 | us-gaap |
Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential
EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential
|
0.082 | pure |
| CY2016 | us-gaap |
Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential
EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential
|
0 | pure |
| CY2018 | us-gaap |
Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate
EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate
|
0 | pure |
| CY2017 | us-gaap |
Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate
EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate
|
-0.714 | pure |
| CY2016 | us-gaap |
Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate
EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate
|
0 | pure |
| CY2016 | us-gaap |
Noncash Or Part Noncash Divestiture Amount Of Consideration Received1
NoncashOrPartNoncashDivestitureAmountOfConsiderationReceived1
|
0 | USD |
| CY2016 | us-gaap |
Proceeds From Notes Payable
ProceedsFromNotesPayable
|
0 | USD |
| CY2016 | us-gaap |
Repayments Of Notes Payable
RepaymentsOfNotesPayable
|
2234000000 | USD |
| CY2016Q4 | us-gaap |
Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held
OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld
|
29000000 | USD |
| CY2016Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
187000000 | USD |
| CY2018 | us-gaap |
Other Comprehensive Income Loss Financial Liability Fair Value Option Unrealized Gain Loss Arising During Period After Tax
OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionUnrealizedGainLossArisingDuringPeriodAfterTax
|
52000000 | USD |
| CY2018 | us-gaap |
Other Comprehensive Income Loss Before Reclassifications Net Of Tax
OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
|
30000000 | USD |
| CY2018 | us-gaap |
Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax
ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
|
0 | USD |
| CY2018Q1 | mbi |
Tax Cuts And Jobs Act Tax Rate
TaxCutsAndJobsActTaxRate
|
0.21 | pure |
| CY2018 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
1206000000 | USD |
| CY2017 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
1202000000 | USD |
| CY2017 | us-gaap |
Income Tax Effects Allocated Directly To Equity
IncomeTaxEffectsAllocatedDirectlyToEquity
|
21000000 | USD |
| CY2016 | us-gaap |
Income Tax Effects Allocated Directly To Equity
IncomeTaxEffectsAllocatedDirectlyToEquity
|
14000000 | USD |
| CY2018 | us-gaap |
Income Tax Expense Benefit Intraperiod Tax Allocation
IncomeTaxExpenseBenefitIntraperiodTaxAllocation
|
5000000 | USD |
| CY2017 | us-gaap |
Income Tax Expense Benefit Intraperiod Tax Allocation
IncomeTaxExpenseBenefitIntraperiodTaxAllocation
|
965000000 | USD |
| CY2016 | us-gaap |
Income Tax Expense Benefit Intraperiod Tax Allocation
IncomeTaxExpenseBenefitIntraperiodTaxAllocation
|
13000000 | USD |
| CY2017 | us-gaap |
Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
|
945000000 | USD |
| CY2016 | us-gaap |
Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
|
-8000000 | USD |
| CY2018 | us-gaap |
Deferred Foreign Income Tax Expense Benefit
DeferredForeignIncomeTaxExpenseBenefit
|
0 | USD |
| CY2017 | us-gaap |
Deferred Foreign Income Tax Expense Benefit
DeferredForeignIncomeTaxExpenseBenefit
|
-5000000 | USD |
| CY2018 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
-752000000 | USD |
| CY2017 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
-589000000 | USD |
| CY2017 | us-gaap |
Other Comprehensive Income Loss Financial Liability Fair Value Option Unrealized Gain Loss Arising During Period After Tax
OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionUnrealizedGainLossArisingDuringPeriodAfterTax
|
0 | USD |
| CY2017 | us-gaap |
Insured Financial Obligations With Credit Deterioration Remaining Weighted Average Contract Period
InsuredFinancialObligationsWithCreditDeteriorationRemainingWeightedAverageContractPeriod
|
P8Y10M24D | |
| CY2017 | mbi |
Weighted Average Contractual Maturity Period Of Securities Unrealized Loss Position
WeightedAverageContractualMaturityPeriodOfSecuritiesUnrealizedLossPosition
|
P12Y | |
| CY2018 | us-gaap |
Stock Issued During Period Value Treasury Stock Reissued
StockIssuedDuringPeriodValueTreasuryStockReissued
|
13000000 | USD |
| CY2018Q4 | us-gaap |
Reinsurance Recoverables On Paid And Unpaid Losses
ReinsuranceRecoverablesOnPaidAndUnpaidLosses
|
21000000 | USD |
| CY2017Q4 | us-gaap |
Reinsurance Recoverables On Paid And Unpaid Losses
ReinsuranceRecoverablesOnPaidAndUnpaidLosses
|
17000000 | USD |
| CY2018Q4 | us-gaap |
Class Of Warrant Or Right Exercise Price Of Warrants Or Rights1
ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
|
9.59 | |
| CY2018 | us-gaap |
Stock Issued During Period Shares Treasury Stock Reissued
StockIssuedDuringPeriodSharesTreasuryStockReissued
|
1300000 | shares |
| CY2018Q4 | us-gaap |
Operating Loss Carryforwards
OperatingLossCarryforwards
|
2400000000 | USD |
| CY2018Q4 | us-gaap |
Variable Interest Entity Entity Maximum Loss Exposure Amount
VariableInterestEntityEntityMaximumLossExposureAmount
|
7284000000 | USD |
| CY2017Q4 | us-gaap |
Variable Interest Entity Entity Maximum Loss Exposure Amount
VariableInterestEntityEntityMaximumLossExposureAmount
|
8985000000 | USD |
| CY2018 | us-gaap |
Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
|
0 | USD |
| CY2017 | us-gaap |
Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
|
4000000 | USD |
| CY2016 | us-gaap |
Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
|
4000000 | USD |
| CY2018 | us-gaap |
Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
|
1000000 | USD |
| CY2017 | us-gaap |
Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
|
0 | USD |
| CY2016 | us-gaap |
Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
|
1000000 | USD |
| CY2018 | us-gaap |
Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
|
-1000000 | USD |
| CY2016 | us-gaap |
Deferred Foreign Income Tax Expense Benefit
DeferredForeignIncomeTaxExpenseBenefit
|
2000000 | USD |
| CY2018 | mbi |
Change In Unrealized Gain Loss On Investments
ChangeInUnrealizedGainLossOnInvestments
|
-5000000 | USD |
| CY2017 | mbi |
Change In Unrealized Gain Loss On Investments
ChangeInUnrealizedGainLossOnInvestments
|
1000000 | USD |
| CY2016 | mbi |
Change In Unrealized Gain Loss On Investments
ChangeInUnrealizedGainLossOnInvestments
|
-8000000 | USD |
| CY2018 | us-gaap |
Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Tax Portion Attributable To Parent
OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossTaxPortionAttributableToParent
|
0 | USD |
| CY2017 | us-gaap |
Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Tax Portion Attributable To Parent
OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossTaxPortionAttributableToParent
|
1000000 | USD |
| CY2016 | us-gaap |
Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Tax Portion Attributable To Parent
OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossTaxPortionAttributableToParent
|
5000000 | USD |
| CY2018 | us-gaap |
Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax
OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax
|
0 | USD |
| CY2017 | us-gaap |
Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax
OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax
|
21000000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax
OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax
|
1000000 | USD |
| CY2018 | us-gaap |
Income Tax Effects Allocated Directly To Equity
IncomeTaxEffectsAllocatedDirectlyToEquity
|
5000000 | USD |
| CY2016 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
2424000000 | USD |
| CY2016 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
-2535000000 | USD |
| CY2015Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
522000000 | USD |
| CY2018Q2 | dei |
Entity Public Float
EntityPublicFloat
|
794245161 | USD |
| CY2016Q4 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
3239000000 | USD |
| CY2016Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
|
14.6689 | |
| CY2018Q4 | mbi |
Deferred Tax Liabilities Unearned Premium Revenue
DeferredTaxLiabilitiesUnearnedPremiumRevenue
|
59000000 | USD |
| CY2017Q4 | mbi |
Deferred Tax Liabilities Unearned Premium Revenue
DeferredTaxLiabilitiesUnearnedPremiumRevenue
|
75000000 | USD |
| CY2018Q4 | mbi |
Deferred Tax Liabilities Deferral Of Cod Income
DeferredTaxLiabilitiesDeferralOfCodIncome
|
0 | USD |
| CY2017Q4 | mbi |
Deferred Tax Liabilities Deferral Of Cod Income
DeferredTaxLiabilitiesDeferralOfCodIncome
|
14000000 | USD |
| CY2018Q4 | us-gaap |
Deferred Tax Liabilities Deferred Expense Deferred Policy Acquisition Cost
DeferredTaxLiabilitiesDeferredExpenseDeferredPolicyAcquisitionCost
|
16000000 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Liabilities Deferred Expense Deferred Policy Acquisition Cost
DeferredTaxLiabilitiesDeferredExpenseDeferredPolicyAcquisitionCost
|
21000000 | USD |
| CY2018Q4 | us-gaap |
Deferred Tax Liabilities Other Comprehensive Income
DeferredTaxLiabilitiesOtherComprehensiveIncome
|
0 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Liabilities Other Comprehensive Income
DeferredTaxLiabilitiesOtherComprehensiveIncome
|
0 | USD |
| CY2018Q4 | us-gaap |
Deferred Tax Liabilities Investments
DeferredTaxLiabilitiesInvestments
|
3000000 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Liabilities Investments
DeferredTaxLiabilitiesInvestments
|
11000000 | USD |
| CY2018Q4 | us-gaap |
Deferred Tax Liabilities Undistributed Foreign Earnings
DeferredTaxLiabilitiesUndistributedForeignEarnings
|
0 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Liabilities Undistributed Foreign Earnings
DeferredTaxLiabilitiesUndistributedForeignEarnings
|
1000000 | USD |
| CY2018Q4 | mbi |
Deferred Tax Liabilities Variable Interest Entities
DeferredTaxLiabilitiesVariableInterestEntities
|
55000000 | USD |
| CY2017Q4 | mbi |
Deferred Tax Liabilities Variable Interest Entities
DeferredTaxLiabilitiesVariableInterestEntities
|
38000000 | USD |
| CY2018Q4 | us-gaap |
Deferred Tax Liabilities Other
DeferredTaxLiabilitiesOther
|
0 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Liabilities Other
DeferredTaxLiabilitiesOther
|
0 | USD |
| CY2018Q4 | us-gaap |
Deferred Income Tax Liabilities
DeferredIncomeTaxLiabilities
|
133000000 | USD |
| CY2017Q4 | us-gaap |
Deferred Income Tax Liabilities
DeferredIncomeTaxLiabilities
|
160000000 | USD |
| CY2018Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Compensation And Benefits
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits
|
7000000 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Compensation And Benefits
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits
|
11000000 | USD |
| CY2018Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities
DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities
|
158000000 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities
DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities
|
131000000 | USD |
| CY2018Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Loss Reserves
DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsLossReserves
|
135000000 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Loss Reserves
DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsLossReserves
|
87000000 | USD |
| CY2018Q4 | mbi |
Deferred Tax Assets Nols And Tax Credit Carryforwards
DeferredTaxAssetsNolsAndTaxCreditCarryforwards
|
512000000 | USD |
| CY2017Q4 | mbi |
Deferred Tax Assets Nols And Tax Credit Carryforwards
DeferredTaxAssetsNolsAndTaxCreditCarryforwards
|
582000000 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Assets Tax Credit Carryforwards Foreign
DeferredTaxAssetsTaxCreditCarryforwardsForeign
|
62000000 | USD |
| CY2018Q4 | mbi |
Deferred Tax Assets Capital Loss Carryforwards And Other Than Temporary Impairments
DeferredTaxAssetsCapitalLossCarryforwardsAndOtherThanTemporaryImpairments
|
22000000 | USD |
| CY2017Q4 | mbi |
Deferred Tax Assets Capital Loss Carryforwards And Other Than Temporary Impairments
DeferredTaxAssetsCapitalLossCarryforwardsAndOtherThanTemporaryImpairments
|
22000000 | USD |
| CY2018Q4 | mbi |
Deferred Tax Assets Insured Derivatives
DeferredTaxAssetsInsuredDerivatives
|
8000000 | USD |
| CY2017Q4 | mbi |
Deferred Tax Assets Insured Derivatives
DeferredTaxAssetsInsuredDerivatives
|
14000000 | USD |
| CY2018Q4 | us-gaap |
Deferred Tax Assets Derivative Instruments
DeferredTaxAssetsDerivativeInstruments
|
30000000 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Assets Derivative Instruments
DeferredTaxAssetsDerivativeInstruments
|
13000000 | USD |
| CY2018Q4 | us-gaap |
Deferred Tax Assets Other Comprehensive Loss
DeferredTaxAssetsOtherComprehensiveLoss
|
32000000 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Assets Other Comprehensive Loss
DeferredTaxAssetsOtherComprehensiveLoss
|
5000000 | USD |
| CY2018Q4 | us-gaap |
Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax
DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax
|
0 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax
DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax
|
0 | USD |
| CY2018Q4 | us-gaap |
Deferred Tax Assets Other
DeferredTaxAssetsOther
|
1000000 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Assets Other
DeferredTaxAssetsOther
|
3000000 | USD |
| CY2018Q4 | us-gaap |
Deferred Tax Assets Gross
DeferredTaxAssetsGross
|
967000000 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Assets Gross
DeferredTaxAssetsGross
|
930000000 | USD |
| CY2018Q4 | us-gaap |
Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
|
834000000 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
|
770000000 | USD |
| CY2018Q4 | us-gaap |
Deferred Tax Assets Liabilities Net
DeferredTaxAssetsLiabilitiesNet
|
0 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Assets Liabilities Net
DeferredTaxAssetsLiabilitiesNet
|
0 | USD |
| CY2017 | us-gaap |
Revenue From Contract With Customer Including Assessed Tax
RevenueFromContractWithCustomerIncludingAssessedTax
|
370000000 | USD |
| CY2018 | us-gaap |
Revenue From Contract With Customer Including Assessed Tax
RevenueFromContractWithCustomerIncludingAssessedTax
|
317000000 | USD |
| CY2018 | dei |
Document Type
DocumentType
|
10-K | |
| CY2018 | dei |
Document Fiscal Period Focus
DocumentFiscalPeriodFocus
|
Q4 | |
| CY2018 | dei |
Entity Well Known Seasoned Issuer
EntityWellKnownSeasonedIssuer
|
Yes | |
| CY2018 | dei |
Entity Current Reporting Status
EntityCurrentReportingStatus
|
Yes | |
| CY2018 | dei |
Entity Central Index Key
EntityCentralIndexKey
|
0000814585 | |
| CY2018 | dei |
Entity Filer Category
EntityFilerCategory
|
Large Accelerated Filer | |
| CY2018 | dei |
Entity Voluntary Filers
EntityVoluntaryFilers
|
No | |
| CY2015Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
|
-61000000 | USD |
| CY2016Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
|
-128000000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Loss Before Reclassifications Net Of Tax
OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
|
-68000000 | USD |
| CY2016 | us-gaap |
Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax
ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
|
-1000000 | USD |
| CY2017 | us-gaap |
Other Comprehensive Income Loss Before Reclassifications Net Of Tax
OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
|
101000000 | USD |
| CY2017 | us-gaap |
Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax
ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
|
-8000000 | USD |
| CY2017Q4 | us-gaap |
Warrants And Rights Outstanding
WarrantsAndRightsOutstanding
|
6000000 | USD |
| CY2018Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Four
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour
|
265000000 | USD |
| CY2018Q4 | us-gaap |
Derivative Collateral Right To Reclaim Securities
DerivativeCollateralRightToReclaimSecurities
|
205000000 | USD |
| CY2017Q4 | us-gaap |
Derivative Collateral Right To Reclaim Securities
DerivativeCollateralRightToReclaimSecurities
|
237000000 | USD |
| CY2018Q4 | mbi |
Fair Value Of Credit Support Annexes
FairValueOfCreditSupportAnnexes
|
2000000 | USD |
| CY2017Q4 | mbi |
Fair Value Of Credit Support Annexes
FairValueOfCreditSupportAnnexes
|
2000000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Loss Financial Liability Fair Value Option Unrealized Gain Loss Arising During Period After Tax
OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionUnrealizedGainLossArisingDuringPeriodAfterTax
|
0 | USD |
| CY2018 | us-gaap |
Stockholders Equity Other
StockholdersEquityOther
|
1000000 | USD |
| CY2017Q4 | mbi |
Fair Value Of Securities On Deposit With Various Regulatory Authorities
FairValueOfSecuritiesOnDepositWithVariousRegulatoryAuthorities
|
10000000 | USD |
| CY2018Q4 | us-gaap |
Deferred Tax Assets Tax Credit Carryforwards Other
DeferredTaxAssetsTaxCreditCarryforwardsOther
|
26000000 | USD |
| CY2018 | mbi |
Class Of Warrant Or Right Exercised
ClassOfWarrantOrRightExercised
|
11850000 | shares |
| CY2018Q4 | us-gaap |
Class Of Warrant Or Right Outstanding
ClassOfWarrantOrRightOutstanding
|
0 | shares |
| CY2018 | us-gaap |
Policyholder Benefits And Claims Incurred Net
PolicyholderBenefitsAndClaimsIncurredNet
|
63000000 | USD |
| CY2017 | us-gaap |
Policyholder Benefits And Claims Incurred Net
PolicyholderBenefitsAndClaimsIncurredNet
|
683000000 | USD |
| CY2016 | us-gaap |
Policyholder Benefits And Claims Incurred Net
PolicyholderBenefitsAndClaimsIncurredNet
|
220000000 | USD |
| CY2018 | dei |
Entity Small Business
EntitySmallBusiness
|
false | |
| CY2018 | dei |
Entity Emerging Growth Company
EntityEmergingGrowthCompany
|
false | |
| CY2018 | dei |
Entity Shell Company
EntityShellCompany
|
false | |
| CY2018 | us-gaap |
Financial Guarantee Insurance Contracts Premium Receivable Proceeds From Premiums Received
FinancialGuaranteeInsuranceContractsPremiumReceivableProceedsFromPremiumsReceived
|
74000000 | USD |
| CY2017 | us-gaap |
Financial Guarantee Insurance Contracts Premium Receivable Proceeds From Premiums Received
FinancialGuaranteeInsuranceContractsPremiumReceivableProceedsFromPremiumsReceived
|
50000000 | USD |
