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Variable Interest Entities (Tables) | 3 Months Ended
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Mar. 31, 2012
Variable Interest Entities [Abstract] |
Summary Of Nonconsolidated VIEs Assets And Liabilities |
|  | March 31, 2012 |
|  |  |  |  |  |  |  | Carrying Value of Assets |  |  | Carrying Value of Liabilities |
In millions |  | VIE Assets |  |  | Maximum Exposure to Loss |  |  | Investments (1) |  |  | Premiums Receivable (2) |  |  | Insurance Loss Recoverable (3) |  |  | Unearned Premium Revenue (4) |  |  | Loss and Loss Adjustment Expense Reserves (5) |  |  | Derivative Liabilities (6) |
Insurance: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Global structured finance: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collateralized debt obligations |  | $ | 25,175 |  |  | $ | 13,686 |  |  | $ | 39 |  |  | $ | 60 |  |  | $ | - |  |  | $ | 52 |  |  | $ | 3 |  |  | $ | 175 |
Mortgage-backed residential |  |  | 45,442 |  |  |  | 15,851 |  |  |  | 11 |  |  |  | 84 |  |  |  | 2,854 |  |  |  | 82 |  |  |  | 442 |  |  |  | 6 |
Mortgage-backed commercial |  |  | 5,046 |  |  |  | 2,655 |  |  |  | - |  |  |  | 2 |  |  |  | - |  |  |  | 2 |  |  |  | - |  |  |  | - |
Consumer asset-backed |  |  | 7,326 |  |  |  | 4,056 |  |  |  | 12 |  |  |  | 23 |  |  |  | - |  |  |  | 22 |  |  |  | 20 |  |  |  | - |
Corporate asset-backed |  |  | 27,455 |  |  |  | 13,309 |  |  |  | 87 |  |  |  | 170 |  |  |  | 20 |  |  |  | 185 |  |  |  | - |  |  |  | - |
Total global structured finance |  |  | 110,444 |  |  |  | 49,557 |  |  |  | 149 |  |  |  | 339 |  |  |  | 2,874 |  |  |  | 343 |  |  |  | 465 |  |  |  | 181 |
Global public finance |  |  | 42,975 |  |  |  | 22,042 |  |  |  | - |  |  |  | 215 |  |  |  | - |  |  |  | 270 |  |  |  | - |  |  |  | - |
Total insurance |  | $ | 153,419 |  |  | $ | 71,599 |  |  | $ | 149 |  |  | $ | 554 |  |  | $ | 2,874 |  |  | $ | 613 |  |  | $ | 465 |  |  | $ | 181 |
(1) - Reported within "Investments" on MBIA's consolidated balance sheets. (2) - Reported within "Premiums receivable" on MBIA's consolidated balance sheets. (3) - Reported within "Insurance loss recoverable" on MBIA's consolidated balance sheets. (4) - Reported within "Unearned premium revenue" on MBIA's consolidated balance sheets. (5) - Reported within "Loss and loss adjustment expense reserves" on MBIA's consolidated balance sheets. (6) - Reported within "Derivative liabilities" on MBIA's consolidated balance sheets.
|  | December 31, 2011 |
|  |  |  |  |  |  |  | Carrying Value of Assets |  |  | Carrying Value of Liabilities |
In millions |  | VIE Assets |  |  | Maximum Exposure to Loss |  |  | Investments (1) |  |  | Premiums Receivable (2) |  |  | Insurance Loss Recoverable (3) |  |  | Unearned Premium Revenue (4) |  |  | Loss and Loss Adjustment Expense Reserves (5) |  |  | Derivative Liabilities (6) |
Insurance: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Global structured finance: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collateralized debt obligations |  | $ | 26,507 |  |  | $ | 15,466 |  |  | $ | 42 |  |  | $ | 67 |  |  | $ | - |  |  | $ | 58 |  |  | $ | 3 |  |  | $ | 113 |
Mortgage-backed residential |  |  | 47,669 |  |  |  | 16,379 |  |  |  | 25 |  |  |  | 87 |  |  |  | 2,773 |  |  |  | 86 |  |  |  | 428 |  |  |  | 5 |
Mortgage-backed commercial |  |  | 5,001 |  |  |  | 2,644 |  |  |  | - |  |  |  | 2 |  |  |  | - |  |  |  | 2 |  |  |  | - |  |  |  | - |
Consumer asset-backed |  |  | 8,015 |  |  |  | 4,563 |  |  |  | 16 |  |  |  | 26 |  |  |  | - |  |  |  | 25 |  |  |  | 23 |  |  |  | - |
Corporate asset-backed |  |  | 29,855 |  |  |  | 15,577 |  |  |  | 241 |  |  |  | 192 |  |  |  | 22 |  |  |  | 205 |  |  |  | - |  |  |  | 1 |
Total global structured finance |  |  | 117,047 |  |  |  | 54,629 |  |  |  | 324 |  |  |  | 374 |  |  |  | 2,795 |  |  |  | 376 |  |  |  | 454 |  |  |  | 119 |
Global public finance |  |  | 42,106 |  |  |  | 21,774 |  |  |  | - |  |  |  | 215 |  |  |  | - |  |  |  | 270 |  |  |  | - |  |  |  | - |
Total insurance |  | $ | 159,153 |  |  | $ | 76,403 |  |  | $ | 324 |  |  | $ | 589 |  |  | $ | 2,795 |  |  | $ | 646 |  |  | $ | 454 |  |  | $ | 119 |
(1) - Reported within "Investments" on MBIA's consolidated balance sheets. (2) - Reported within "Premiums receivable" on MBIA's consolidated balance sheets. (3) - Reported within "Insurance loss recoverable" on MBIA's consolidated balance sheets. (4) - Reported within "Unearned premium revenue" on MBIA's consolidated balance sheets. (5) - Reported within "Loss and loss adjustment expense reserves" on MBIA's consolidated balance sheets.
(6) | - Reported within "Derivative liabilities" on MBIA's consolidated balance sheets.

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- Definition Schedule Of Summary Of Nonconsolidated VIEs Assets And Liabilities [Text Block] + References No definition available. + Details
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