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Schedule I- Investments | 12 Months Ended
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Dec. 31, 2019
Summary of Investments, Other than Investments in Related Parties [Abstract] |
Schedule I - Summary Of Investments, Other Than Investments In Related Parties | SCHEDULE I MBIA INC. AND SUBSIDIARIES SUMMARY OF INVESTMENTS, OTHER THAN INVESTMENTS IN RELATED PARTIES December 31, 2019 (In millions)
|  | December 31, 2019 |
Type of investment |  | Cost |  |  | Fair Value |  |  | Amount at which shown in the balance sheet |
Available-for-sale: |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury and government agency |  | $ | 640 |  |  | $ | 685 |  |  | $ | 685 |
State and municipal bonds |  |  | 178 |  |  |  | 200 |  |  |  | 200 |
Foreign governments |  |  | 2 |  |  |  | 2 |  |  |  | 2 |
Corporate obligations |  |  | 1,078 |  |  |  | 1,129 |  |  |  | 1,129 |
Mortgage-backed securities: |  |  |  |  |  |  |  |  |  |  |  |
Residential mortgage-backed agency |  |  | 317 |  |  |  | 320 |  |  |  | 320 |
Residential mortgage-backed non-agency |  |  | 23 |  |  |  | 19 |  |  |  | 19 |
Commercial mortgage-backed |  |  | 20 |  |  |  | 20 |  |  |  | 20 |
Asset-backed securities: |  |  |  |  |  |  |  |  |  |  |  |
Collateralized debt obligations |  |  | 139 |  |  |  | 137 |  |  |  | 137 |
Other asset-backed |  |  | 317 |  |  |  | 317 |  |  |  | 317 |
Total long-term available-for-sale |  |  | 2,714 |  |  |  | 2,829 |  |  |  | 2,829 |
Short-term available-for-sale |  |  | 270 |  |  |  | 270 |  |  |  | 270 |
Total available-for-sale |  |  | 2,984 |  |  |  | 3,099 |  |  |  | 3,099 |
Investments at fair value |  |  | 359 |  |  |  | 363 |  |  |  | 363 |
Total investments |  | $ | 3,343 |  |  | $ | 3,462 |  |  | $ | 3,462 |
Assets of consolidated variable interest entities: |  |  |  |  |  |  |  |  |  |  |  |
Investments at fair value |  |  | 100 |  |  |  | 83 |  |  |  | 83 |
Held-to-maturity: |  |  |  |  |  |  |  |  |  |  |  |
Corporate obligations |  |  | 890 |  |  |  | 892 |  |  |  | 890 |
Loans receivable |  |  | 135 |  |  |  | 136 |  |  |  | 136 |
Total investments of consolidated variable interest entities |  | $ | 1,125 |  |  | $ | 1,111 |  |  | $ | 1,109 |

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- Definition The entire disclosure of information about investment held by insurance company, excluding investment in related party. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 15 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -Section S99 -Paragraph 7 -Subparagraph (SX 210.12-15) -URI http://asc.fasb.org/extlink&oid=50485924&loc=d3e611379-123010 + Details
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