XML 61 R40.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Debt (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2018
Debt Disclosure [Abstract] |
Long-term debt |
|  |  | As of December 31, |
| In millions |  | 2018 |  | 2017 |
| 6.400% Senior Notes due 2022 (1) |  | $ | 265 |  | $ | 265 |
| 7.000% Debentures due 2025 |  |  | 46 |  |  | 46 |
| 7.150% Debentures due 2027 |  |  | 100 |  |  | 100 |
| 6.625% Debentures due 2028 |  |  | 141 |  |  | 141 |
| 5.700% Senior Notes due 2034 (2) |  |  | 21 |  |  | 21 |
| Surplus Notes due 2033 (3) |  |  | 940 |  |  | 940 |
| Accrued interest |  |  | 751 |  |  | 624 |
| Debt issuance costs |  |  | (15) |  |  | (16) |
| Total |  | $ | 2,249 |  | $ | 2,121 |
| ________________ |  |  |  |  |  |
| (1) - Callable on or after August 15, 2006 at par. |
| (2) - Callable anytime at the greater of par or the present value of the remaining scheduled |
| payments of principal and interest. |
| (3) - Contractual interest rate is based on three month LIBOR plus 11.26%. |
Aggregate maturity of debt obligations |
In millions |  | 2019 |  | 2020 |  | 2021 |  | 2022 |  | 2023 |  | Thereafter |  | Total
Corporate debt |  | $ | - |  | $ | - |  | $ | - |  | $ | 265 |  | $ | - |  | $ | 308 |  | $ | 573
Surplus Notes due 2033 |  |  | - |  |  | - |  |  | - |  |  | - |  |  | - |  |  | 940 |  |  | 940
Total debt obligations due |  | $ | - |  | $ | - |  | $ | - |  | $ | 265 |  | $ | - |  | $ | 1,248 |  | $ | 1,513
Principal payments due under investment agreement obligations |
|  |  | Principal |
| In millions |  | Amount |
| Maturity date: |  |  |  |
| 2019 |  | $ | 7 |
| 2020 |  |  | 35 |
| 2021 |  |  | 2 |
| 2022 |  |  | 2 |
| 2023 |  |  | 20 |
| Thereafter (through 2037) |  |  | 295 |
| Total expected principal payments (1) |  | $ | 361 |
| Less discount and other adjustments (2) |  |  | 50 |
| Total |  | $ | 311 |
| ________________ |  |  |
| (1)- Amounts reflect principal due at maturity for investment agreements issued at a discount. |
| (2)- Discount is net of carrying amount adjustment of $4 million and accrued interest adjustment of $5 million. |
Principal payments due under medium-term note obligations based on contractual maturity |
|  |  | Principal |
| In millions |  | Amount |
| Maturity date: |  |  |  |
| 2019 |  | $ | 58 |
| 2020 |  |  | - |
| 2021 |  |  | - |
| 2022 |  |  | 58 |
| 2023 |  |  | - |
| Thereafter (through 2036) |  |  | 835 |
| Total expected principal payments (1) |  | $ | 951 |
| Less discount and other adjustments (2) |  |  | 229 |
| Total |  | $ | 722 |
| ________________ |  |  |
| (1)- Amounts reflect principal due at maturity for notes issued at a discount. |
| (2)- Discount is net of carrying amount adjustment of $34 million and accrued interest adjustment of $5 million. |
Maturity of VIE notes, by segment |
|  |  | Principal |  |
| In millions |  | Amount |  |
| Maturity date: |  |  |  |  |
| 2019 |  | $ | 108 |  |
| 2020 |  |  | 396 |  |
| 2021 |  |  | 72 |  |
| 2022 |  |  | 41 |  |
| 2023 |  |  | 13 |  |
| Thereafter (through 2052) |  |  | 1,111 |  |
| Total |  | $ | 1,741 | (1) |
| _______________ |  |  |  |  |
| (1) - Includes $480 million of VIE notes accounted for at fair value as of December 31, 2018.

X
- Definition Expected principal payments due under investment agreements [Table Text Block]. + References No definition available. + Details
Name: | mbi_ExpectedPrincipalPaymentsDueUnderinvestmentAgreementsTableTextBlock
Namespace Prefix: | mbi_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Schedule of maturity of variable interest entities notes, by segment [Table Text Block]. + References No definition available. + Details
Name: | mbi_ScheduleOfMaturityOfVariableInterestEntitiesNotesBySegmentTableTextBlock
Namespace Prefix: | mbi_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Schedule of principal payments due under medium-term note obligations based on contractual maturity [Table Text Block]. + References No definition available. + Details
Name: | mbi_ScheduleOfPrincipalPaymentsDueUnderMediumTermNoteObligationsBasedOnContractualMaturityTableTextBlock
Namespace Prefix: | mbi_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_DebtDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28541-108399 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21506-112644 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(e),(f)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21521-112644 Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21538-112644 Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823 Reference 9: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400 Reference 10: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644 + Details
Name: | us-gaap_ScheduleOfDebtInstrumentsTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the combined aggregate amount of maturities and sinking fund requirements for all long-term borrowings for each of the five years following the date of the latest balance sheet date presented. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 + Details
Name: | us-gaap_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration