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Schedule I - Summary Of Investments, Other Than Investments In Related Parties | 12 Months Ended
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Dec. 31, 2012
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, 2012 (In millions)
|  | December 31, 2012 |
Type of investment |  | Cost |  |  | Fair Value |  |  | Amount at which shown in the balance sheet |
Available-for-sale: |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury and government agency |  | $ | 752 |  |  | $ | 791 |  |  | $ | 791 |
State and municipal bonds |  |  | 1,417 |  |  |  | 1,502 |  |  |  | 1,502 |
Foreign governments |  |  | 151 |  |  |  | 164 |  |  |  | 164 |
Corporate obligations |  |  | 916 |  |  |  | 945 |  |  |  | 945 |
Mortgage-backed securities: |  |  |  |  |  |  |  |  |  |  |  |
Residential mortgage-backed agency |  |  | 928 |  |  |  | 946 |  |  |  | 946 |
Residential mortgage-backed non-agency |  |  | 79 |  |  |  | 80 |  |  |  | 80 |
Commercial mortgage-backed |  |  | 46 |  |  |  | 42 |  |  |  | 42 |
Asset-backed securities: |  |  |  |  |  |  |  |  |  |  |  |
Collateralized debt obligations |  |  | 157 |  |  |  | 87 |  |  |  | 87 |
Other asset-backed |  |  | 136 |  |  |  | 128 |  |  |  | 128 |
Total long-term available-for-sale |  |  | 4,582 |  |  |  | 4,685 |  |  |  | 4,685 |
Short-term available-for-sale |  |  | 881 |  |  |  | 888 |  |  |  | 888 |
Equity available-for-sale |  |  | 22 |  |  |  | 23 |  |  |  | 23 |
Total available-for-sale |  |  | 5,485 |  |  |  | 5,596 |  |  |  | 5,596 |
Investments at fair value |  |  | 264 |  |  |  | 257 |  |  |  | 257 |
Other investments |  |  | 9 |  |  |  | 9 |  |  |  | 9 |
Total investments |  | $ | 5,758 |  |  | $ | 5,862 |  |  | $ | 5,862 |
Assets of consolidated variable interest entities: |  |  |  |  |  |  |  |  |  |  |  |
Available-for-sale: |  |  |  |  |  |  |  |  |  |  |  |
State and municipal bonds |  | $ | 33 |  |  | $ | 36 |  |  | $ | 36 |
Corporate obligations |  |  | 175 |  |  |  | 178 |  |  |  | 178 |
Mortgage-backed securities: |  |  |  |  |  |  |  |  |  |  |  |
Residential mortgage-backed non-agency |  |  | 92 |  |  |  | 82 |  |  |  | 82 |
Asset-backed securities: |  |  |  |  |  |  |  |  |  |  |  |
Collateralized debt obligations |  |  | 97 |  |  |  | 89 |  |  |  | 89 |
Other asset-backed |  |  | 20 |  |  |  | 20 |  |  |  | 20 |
Total long-term available-for-sale |  |  | 417 |  |  |  | 405 |  |  |  | 405 |
Short-term available-for-sale |  |  | 220 |  |  |  | 220 |  |  |  | 220 |
Total available-for-sale |  |  | 637 |  |  |  | 625 |  |  |  | 625 |
Investments at fair value |  |  | 1,843 |  |  |  | 1,735 |  |  |  | 1,735 |
Held-to-maturity: |  |  |  |  |  |  |  |  |  |  |  |
Corporate obligations |  |  | 2,829 |  |  |  | 2,674 |  |  |  | 2,829 |
Total held-to-maturity |  |  | 2,829 |  |  |  | 2,674 |  |  |  | 2,829 |
Total investments of consolidated variable interest entities |  | $ | 5,309 |  |  | $ | 5,034 |  |  | $ | 5,189 |

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- Definition The entire disclosure for the schedule applicable to insurance companies summarizing investments held as of the most recent audited balance sheet. At a minimum, such summary is by three major categories of investments including: (1) fixed maturities primarily consisting of bonds, including convertibles and bonds with warrants, and redeemable preferred stocks, (2) equity securities primarily consisting of common stocks and nonredeemable preferred stocks, and (3) other investments including mortgage loans on real estate, real estate held for investment, real estate acquired in satisfaction of debt, policy loans, other long-term investments, and short-term investments not otherwise categorized. The information provided with respect to each item within each category includes: (A) the original cost of equity securities and, as to fixed maturity securities, original cost reduced by repayments and adjusted for amortization of premiums or accrual of discounts, (B) fair value as of the reporting date, and (C) the amount at which the item within each category is shown in the statement of financial position; with respect to (C), if the amount at which shown in the statement of financial position is different from the items original [amortized] cost or fair value, an explanation of the difference may be included herein. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 15 -Article 12 Reference 2: http://www.xbrl.org/2003/role/presentationRef -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=6955306&loc=d3e611379-123010 + Details
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