XML 81 R94.htm IDEA: XBRL DOCUMENT v2.4.1.9

Debt (Long-Term Debt) (Detail) (USD $)
In Millions, unless otherwise specified

12 Months Ended

Dec. 31, 2014

Dec. 31, 2013

Jan. 16, 2008

Debt Instrument [Line Items]

Long-term debt, gross

$ 592us-gaap_DebtInstrumentCarryingAmount

$ 592us-gaap_DebtInstrumentCarryingAmount

Surplus notes outstanding

940us-gaap_SurplusNotes

^[1]

940us-gaap_SurplusNotes

^[1]

1,000us-gaap_SurplusNotes

Total

1,810us-gaap_LongTermDebtNoncurrent

1,702us-gaap_LongTermDebtNoncurrent

6.400% Senior Notes Due 2022 [Member]

Debt Instrument [Line Items]

Long-term debt, gross

266us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= mbi_SixPointFourZeroZeroPercentageSeniorNotesDueTwoThousandTwentyTwoMember

^[2]

266us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= mbi_SixPointFourZeroZeroPercentageSeniorNotesDueTwoThousandTwentyTwoMember

^[2]

Long-term debt, interest rate

6.40%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= mbi_SixPointFourZeroZeroPercentageSeniorNotesDueTwoThousandTwentyTwoMember

Long-term debt, maturity year

2022

Initial Callable date

Aug. 15, 2006

7.000% Debentures Due 2025 [Member]

Debt Instrument [Line Items]

Long-term debt, gross

56us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= mbi_SevenPointZeroZeroZeroPercentageDebenturesDueTwoThousandTwentyFiveMember

56us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= mbi_SevenPointZeroZeroZeroPercentageDebenturesDueTwoThousandTwentyFiveMember

Long-term debt, interest rate

7.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= mbi_SevenPointZeroZeroZeroPercentageDebenturesDueTwoThousandTwentyFiveMember

Long-term debt, maturity year

2025

7.150% Debentures Due 2027 [Member]

Debt Instrument [Line Items]

Long-term debt, gross

100us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= mbi_SevenPointOneFiveZeroPercentageDebenturesDueTwoThousandTwentySevenMember

100us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= mbi_SevenPointOneFiveZeroPercentageDebenturesDueTwoThousandTwentySevenMember

Long-term debt, interest rate

7.15%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= mbi_SevenPointOneFiveZeroPercentageDebenturesDueTwoThousandTwentySevenMember

Long-term debt, maturity year

2027

6.625% Debentures Due 2028 [Member]

Debt Instrument [Line Items]

Long-term debt, gross

141us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= mbi_SixPointSixTwoFivePercentageDebenturesDuetwothousandtwentyEightMember

141us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= mbi_SixPointSixTwoFivePercentageDebenturesDuetwothousandtwentyEightMember

Long-term debt, interest rate

6.625%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= mbi_SixPointSixTwoFivePercentageDebenturesDuetwothousandtwentyEightMember

Long-term debt, maturity year

2028

5.700% Senior Notes Due 2034 [Member]

Debt Instrument [Line Items]

Long-term debt, gross

21us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= mbi_FivePointSevenZeroZeroPercentageSeniorNotesDueTwoThousandThirtyFourMember

^[3]

21us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= mbi_FivePointSevenZeroZeroPercentageSeniorNotesDueTwoThousandThirtyFourMember

^[3]

Long-term debt, interest rate

5.70%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= mbi_FivePointSevenZeroZeroPercentageSeniorNotesDueTwoThousandThirtyFourMember

Long-term debt, maturity year

2034

14% Surplus Notes Due 2033 [Member]

Debt Instrument [Line Items]

Accrued interest

278us-gaap_InterestPayableCurrentAndNoncurrent
/ us-gaap_DebtInstrumentAxis
= mbi_FourteenPercentageSurplusNotesDueTwoThousandThirtyThreeMember

170us-gaap_InterestPayableCurrentAndNoncurrent
/ us-gaap_DebtInstrumentAxis
= mbi_FourteenPercentageSurplusNotesDueTwoThousandThirtyThreeMember

Long-term debt, interest rate

14.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= mbi_FourteenPercentageSurplusNotesDueTwoThousandThirtyThreeMember

Long-term debt, maturity year

2033

Callable date for fifth anniversary of initial callable date

2018-01-15

MBIA Inc Senior Notes [Member]

Debt Instrument [Line Items]

Accrued interest

$ 8us-gaap_InterestPayableCurrentAndNoncurrent
/ us-gaap_DebtInstrumentAxis
= mbi_MbiaIncSeniorNotesMember

$ 8us-gaap_InterestPayableCurrentAndNoncurrent
/ us-gaap_DebtInstrumentAxis
= mbi_MbiaIncSeniorNotesMember

[1]	Callable on or after January 15, 2018 and every fifth anniversary thereafter at 100.00.
[2]	Callable on or after August 15, 2006 at 100.00.
[3]	Callable anytime at the greater of 100.00 or the present value of the remaining scheduled payments of principal and interest.

X

- Definition

Debt instrument, call date for first fifth anniversary.

+ References

No definition available.

+ Details

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Namespace Prefix:	mbi_
Data Type:	invest:dateStringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Debt instrument maturity year.

+ References

No definition available.

+ Details

Name:	mbi_DebtInstrumentMaturityYear
Namespace Prefix:	mbi_
Data Type:	xbrli:gYearItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Earliest date before maturity when the issuer can call the outstanding debt instrument for repayment or conversion to equity, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 470

-Section 50

-Paragraph 3

-Subparagraph (e)

-URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 20

-Article 5



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-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 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 16

-Article 9

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(1))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	us-gaap_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of interest payable on debt, including, but not limited to, trade payables.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.15(5))

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.15(a))

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 15

-Subparagraph a

-Article 7



Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 15

-Subparagraph 5

-Article 9

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Carrying amount of long-term debt, net of unamortized discount or premium, excluding amounts to be repaid within one year or the normal operating cycle, if longer (current maturities). Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-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

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Financial instruments issued by insurance entities (surplus notes) that are includable in surplus for statutory accounting purposes as prescribed or permitted by state laws and regulations that are liabilities of the issuer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 470

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6486086&loc=d3e24387-158525

+ Details

Name:	us-gaap_SurplusNotes
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

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Namespace Prefix:
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Balance Type:
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X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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Namespace Prefix:
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Balance Type:
Period Type:

X

- Details

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Namespace Prefix:
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X

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