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Investments (Tables) | 9 Months Ended
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Sep. 30, 2012
Available-For-Sale In Consolidated Investment Portfolio |
|  | September 30, 2012 |
In millions |  | Amortized Cost |  |  | Gross Unrealized Gains |  |  | Gross Unrealized Losses |  |  | Fair Value |  |  | Other-Than- Temporary Impairments(1) |
Fixed-maturity investments: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Taxable bonds: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury and government agency |  | $ | 896 |  |  | $ | 44 |  |  | $ | (1) |  |  | $ | 939 |  |  | $ | - |
Foreign governments |  |  | 318 |  |  |  | 22 |  |  |  | - |  |  |  | 340 |  |  |  | - |
Corporate obligations |  |  | 1,068 |  |  |  | 59 |  |  |  | (21) |  |  |  | 1,106 |  |  |  | 3 |
Mortgage-backed securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Residential mortgage-backed agency |  |  | 988 |  |  |  | 48 |  |  |  | - |  |  |  | 1,036 |  |  |  | - |
Residential mortgage-backed non-agency |  |  | 187 |  |  |  | 16 |  |  |  | (36) |  |  |  | 167 |  |  |  | (24) |
Commercial mortgage-backed |  |  | 46 |  |  |  | 1 |  |  |  | (4) |  |  |  | 43 |  |  |  | - |
Asset-backed securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collateralized debt obligations |  |  | 165 |  |  |  | - |  |  |  | (74) |  |  |  | 91 |  |  |  | (26) |
Other asset-backed |  |  | 195 |  |  |  | 3 |  |  |  | (14) |  |  |  | 184 |  |  |  | - |
State and municipal bonds |  |  | 895 |  |  |  | 73 |  |  |  | (11) |  |  |  | 957 |  |  |  | - |
Total taxable bonds |  |  | 4,758 |  |  |  | 266 |  |  |  | (161) |  |  |  | 4,863 |  |  |  | (47) |
Tax-exempt bonds: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
State and municipal bonds |  |  | 886 |  |  |  | 60 |  |  |  | - |  |  |  | 946 |  |  |  | - |
Total fixed-maturity investments |  |  | 5,644 |  |  |  | 326 |  |  |  | (161) |  |  |  | 5,809 |  |  |  | (47) |
Other investments: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Perpetual preferred securities |  |  | 31 |  |  |  | - |  |  |  | - |  |  |  | 31 |  |  |  | - |
Other investments |  |  | 10 |  |  |  | - |  |  |  | - |  |  |  | 10 |  |  |  | - |
Money market securities |  |  | 583 |  |  |  | - |  |  |  | - |  |  |  | 583 |  |  |  | - |
Total other investments |  |  | 624 |  |  |  | - |  |  |  | - |  |  |  | 624 |  |  |  | - |
Assets of consolidated VIEs: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate obligations |  |  | 177 |  |  |  | 7 |  |  |  | (7) |  |  |  | 177 |  |  |  | - |
Mortgage-backed securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Residential mortgage-backed non-agency |  |  | 99 |  |  |  | - |  |  |  | (12) |  |  |  | 87 |  |  |  | - |
Asset-backed securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collateralized debt obligations |  |  | 108 |  |  |  | - |  |  |  | (11) |  |  |  | 97 |  |  |  | - |
Other asset-backed |  |  | 25 |  |  |  | 1 |  |  |  | - |  |  |  | 26 |  |  |  | - |
State and municipal bonds |  |  | 37 |  |  |  | 3 |  |  |  | - |  |  |  | 40 |  |  |  | - |
Other investments: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Money market securities |  |  | 15 |  |  |  | - |  |  |  | - |  |  |  | 15 |  |  |  | - |
Total available-for-sale investments |  | $ | 6,729 |  |  | $ | 337 |  |  | $ | (191) |  |  | $ | 6,875 |  |  | $ | (47) |
(1) - Represents unrealized gains or losses on other than temporarily impaired securities recognized in accumulated other comprehensive income (loss), which includes the non-credit component of impairments, as well as all subsequent changes in fair value of such impaired securities.
|  | December 31, 2011 |
In millions |  | Amortized Cost |  |  | Gross Unrealized Gains |  |  | Gross Unrealized Losses |  |  | Fair Value |  |  | Other-Than- Temporary Impairments(1) |
Fixed-maturity investments: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Taxable bonds: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury and government agency |  | $ | 1,091 |  |  | $ | 39 |  |  | $ | - |  |  | $ | 1,130 |  |  | $ | - |
Foreign governments |  |  | 326 |  |  |  | 23 |  |  |  | - |  |  |  | 349 |  |  |  | - |
Corporate obligations |  |  | 1,698 |  |  |  | 43 |  |  |  | (106) |  |  |  | 1,635 |  |  |  | (2) |
Mortgage-backed securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Residential mortgage-backed agency |  |  | 1,198 |  |  |  | 47 |  |  |  | - |  |  |  | 1,245 |  |  |  | - |
Residential mortgage-backed non-agency |  |  | 325 |  |  |  | 31 |  |  |  | (83) |  |  |  | 273 |  |  |  | (57) |
Commercial mortgage-backed |  |  | 58 |  |  |  | 1 |  |  |  | (10) |  |  |  | 49 |  |  |  | - |
Asset-backed securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collateralized debt obligations |  |  | 251 |  |  |  | - |  |  |  | (118) |  |  |  | 133 |  |  |  | (43) |
Other asset-backed |  |  | 520 |  |  |  | 2 |  |  |  | (82) |  |  |  | 440 |  |  |  | (37) |
State and municipal bonds |  |  | 903 |  |  |  | 35 |  |  |  | (17) |  |  |  | 921 |  |  |  | - |
Total taxable bonds |  |  | 6,370 |  |  |  | 221 |  |  |  | (416) |  |  |  | 6,175 |  |  |  | (139) |
Tax-exempt bonds: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
State and municipal bonds |  |  | 1,122 |  |  |  | 41 |  |  |  | (2) |  |  |  | 1,161 |  |  |  | - |
Total fixed-maturity investments |  |  | 7,492 |  |  |  | 262 |  |  |  | (418) |  |  |  | 7,336 |  |  |  | (139) |
Other investments: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Perpetual preferred securities |  |  | 127 |  |  |  | - |  |  |  | (19) |  |  |  | 108 |  |  |  | - |
Other investments |  |  | 22 |  |  |  | 1 |  |  |  | - |  |  |  | 23 |  |  |  | - |
Money market securities |  |  | 911 |  |  |  | - |  |  |  | - |  |  |  | 911 |  |  |  | - |
Total other investments |  |  | 1,060 |  |  |  | 1 |  |  |  | (19) |  |  |  | 1,042 |  |  |  | - |
Assets of consolidated VIEs: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate obligations |  |  | 2 |  |  |  | - |  |  |  | - |  |  |  | 2 |  |  |  | - |
Mortgage-backed securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Residential mortgage-backed non-agency |  |  | 119 |  |  |  | - |  |  |  | (26) |  |  |  | 93 |  |  |  | - |
Asset-backed securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collateralized debt obligations |  |  | 112 |  |  |  | - |  |  |  | (15) |  |  |  | 97 |  |  |  | - |
Other asset-backed |  |  | 41 |  |  |  | - |  |  |  | - |  |  |  | 41 |  |  |  | - |
Other investments: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Money market securities |  |  | 199 |  |  |  | - |  |  |  | - |  |  |  | 199 |  |  |  | - |
Total available-for-sale investments |  | $ | 9,025 |  |  | $ | 263 |  |  | $ | (478) |  |  | $ | 8,810 |  |  | $ | (139) |
(1) - Represents unrealized gains or losses on other than temporarily impaired securities recognized in accumulated other comprehensive income (loss), which includes the non-credit component of impairments, as well as all subsequent changes in fair value of such impaired securities.
Available-For-Sale Securities In Continuous Unrealized Loss Position |
|  | September 30, 2012 |
|  | Less than 12 Months |  |  | 12 Months or Longer |  |  | Total |
In millions |  | Fair Value |  |  | Unrealized Losses |  |  | Fair Value |  |  | Unrealized Losses |  |  | Fair Value |  |  | Unrealized Losses |
Fixed-maturity investments: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Taxable bonds: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury and government agency |  | $ | 197 |  |  | $ | (1) |  |  | $ | - |  |  | $ | - |  |  | $ | 197 |  |  | $ | (1) |
Foreign governments |  |  | 24 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 24 |  |  |  | - |
Corporate obligations |  |  | 60 |  |  |  | - |  |  |  | 49 |  |  |  | (21) |  |  |  | 109 |  |  |  | (21) |
Mortgage-backed securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Residential mortgage-backed agency |  |  | 8 |  |  |  | - |  |  |  | 41 |  |  |  | - |  |  |  | 49 |  |  |  | - |
Residential mortgage-backed non-agency |  |  | 2 |  |  |  | - |  |  |  | 102 |  |  |  | (36) |  |  |  | 104 |  |  |  | (36) |
Commercial mortgage-backed |  |  | 3 |  |  |  | - |  |  |  | 27 |  |  |  | (4) |  |  |  | 30 |  |  |  | (4) |
Asset-backed securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collateralized debt obligations |  |  | 2 |  |  |  | - |  |  |  | 83 |  |  |  | (74) |  |  |  | 85 |  |  |  | (74) |
Other asset-backed |  |  | 1 |  |  |  | - |  |  |  | 88 |  |  |  | (14) |  |  |  | 89 |  |  |  | (14) |
State and municipal bonds |  |  | 6 |  |  |  | - |  |  |  | 66 |  |  |  | (11) |  |  |  | 72 |  |  |  | (11) |
Total taxable bonds |  |  | 303 |  |  |  | (1) |  |  |  | 456 |  |  |  | (160) |  |  |  | 759 |  |  |  | (161) |
Tax-exempt bonds: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
State and municipal bonds |  |  | 1 |  |  |  | - |  |  |  | 22 |  |  |  | - |  |  |  | 23 |  |  |  | - |
Total fixed-maturity investments |  |  | 304 |  |  |  | (1) |  |  |  | 478 |  |  |  | (160) |  |  |  | 782 |  |  |  | (161) |
Other investments: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Perpetual preferred securities |  |  | - |  |  |  | - |  |  |  | 3 |  |  |  | - |  |  |  | 3 |  |  |  | - |
Assets of consolidated VIEs: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate obligations |  |  | - |  |  |  | - |  |  |  | 54 |  |  |  | (7) |  |  |  | 54 |  |  |  | (7) |
Mortgage-backed securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Residential mortgage-backed non-agency |  |  | - |  |  |  | - |  |  |  | 87 |  |  |  | (12) |  |  |  | 87 |  |  |  | (12) |
Asset-backed securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collateralized debt obligations |  |  | - |  |  |  | - |  |  |  | 96 |  |  |  | (11) |  |  |  | 96 |  |  |  | (11) |
Other asset-backed |  |  | - |  |  |  | - |  |  |  | 3 |  |  |  | - |  |  |  | 3 |  |  |  | - |
Total |  | $ | 304 |  |  | $ | (1) |  |  | $ | 721 |  |  | $ | (190) |  |  | $ | 1,025 |  |  | $ | (191) |
|  | December 31, 2011 |
|  | Less than 12 Months |  |  | 12 Months or Longer |  |  | Total |
In millions |  | Fair Value |  |  | Unrealized Losses |  |  | Fair Value |  |  | Unrealized Losses |  |  | Fair Value |  |  | Unrealized Losses |
Fixed-maturity investments: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Taxable bonds: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury and government agency |  | $ | 200 |  |  | $ | - |  |  | $ | - |  |  | $ | - |  |  | $ | 200 |  |  | $ | - |
Foreign governments |  |  | 20 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 20 |  |  |  | - |
Corporate obligations |  |  | 297 |  |  |  | (15) |  |  |  | 418 |  |  |  | (91) |  |  |  | 715 |  |  |  | (106) |
Mortgage-backed securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Residential mortgage-backed agency |  |  | 20 |  |  |  | - |  |  |  | 49 |  |  |  | - |  |  |  | 69 |  |  |  | - |
Residential mortgage-backed non-agency |  |  | 34 |  |  |  | (5) |  |  |  | 167 |  |  |  | (78) |  |  |  | 201 |  |  |  | (83) |
Commercial mortgage-backed |  |  | 17 |  |  |  | (2) |  |  |  | 22 |  |  |  | (8) |  |  |  | 39 |  |  |  | (10) |
Asset-backed securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collateralized debt obligations |  |  | 13 |  |  |  | (2) |  |  |  | 117 |  |  |  | (116) |  |  |  | 130 |  |  |  | (118) |
Other asset-backed |  |  | 53 |  |  |  | (7) |  |  |  | 328 |  |  |  | (75) |  |  |  | 381 |  |  |  | (82) |
State and municipal bonds |  |  | 152 |  |  |  | (2) |  |  |  | 76 |  |  |  | (15) |  |  |  | 228 |  |  |  | (17) |
Total taxable bonds |  |  | 806 |  |  |  | (33) |  |  |  | 1,177 |  |  |  | (383) |  |  |  | 1,983 |  |  |  | (416) |
Tax-exempt bonds: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
State and municipal bonds |  |  | 14 |  |  |  | - |  |  |  | 75 |  |  |  | (2) |  |  |  | 89 |  |  |  | (2) |
Total fixed-maturity investments |  |  | 820 |  |  |  | (33) |  |  |  | 1,252 |  |  |  | (385) |  |  |  | 2,072 |  |  |  | (418) |
Other investments: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Perpetual preferred securities |  |  | 47 |  |  |  | (3) |  |  |  | 45 |  |  |  | (16) |  |  |  | 92 |  |  |  | (19) |
Assets of consolidated VIEs: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate obligations |  |  | 2 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 2 |  |  |  | - |
Mortgage-backed securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Residential mortgage-backed non-agency |  |  | 3 |  |  |  | - |  |  |  | 90 |  |  |  | (26) |  |  |  | 93 |  |  |  | (26) |
Asset-backed securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collateralized debt obligations |  |  | 9 |  |  |  | - |  |  |  | 88 |  |  |  | (15) |  |  |  | 97 |  |  |  | (15) |
Other asset-backed |  |  | 31 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 31 |  |  |  | - |
Total |  | $ | 912 |  |  | $ | (36) |  |  | $ | 1,475 |  |  | $ | (442) |  |  | $ | 2,387 |  |  | $ | (478) |
Fair Values And Gross Unrealized Losses By Credit Rating Category Of Asset Backed Securities |
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Below |  |  |  |  |  |  |  |  |  |  |  |  |
In millions |  | Aaa |  |  | Aa |  |  | A |  |  | Baa |  |  | Investment Grade |  |  | Not Rated |  |  | Total |
Asset- backed Sector |  | Fair Value |  |  | Unrealized Loss |  |  | Fair Value |  |  | Unrealized Loss |  |  | Fair Value |  |  | Unrealized Loss |  |  | Fair Value |  |  | Unrealized Loss |  |  | Fair Value |  |  | Unrealized Loss |  |  | Fair Value |  |  | Unrealized Loss |  |  | Fair Value |  |  | Unrealized Loss |
ABS CDO |  | $ | 9 |  |  | $ | - |  |  | $ | - |  |  | $ | - |  |  | $ | 4 |  |  | $ | - |  |  | $ | - |  |  | $ | - |  |  | $ | 17 |  |  | $ | (51) |  |  | $ | - |  |  | $ | - |  |  | $ | 30 |  |  | $ | (51) |
Corporate CDO |  |  | 29 |  |  |  | (2) |  |  |  | 64 |  |  |  | (9) |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 91 |  |  |  | (30) |  |  |  | 19 |  |  |  | (2) |  |  |  | 203 |  |  |  | (43) |
Small business/ student loans |  |  | 5 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 10 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 15 |  |  |  | - |
Other ABS |  |  | 3 |  |  |  | - |  |  |  | 1 |  |  |  | - |  |  |  | 3 |  |  |  | - |  |  |  | 1 |  |  |  | - |  |  |  | 10 |  |  |  | (2) |  |  |  | 7 |  |  |  | (3) |  |  |  | 25 |  |  |  | (5) |
Total |  | $ | 46 |  |  | $ | (2) |  |  | $ | 65 |  |  | $ | (9) |  |  | $ | 7 |  |  | $ | - |  |  | $ | 1 |  |  | $ | - |  |  | $ | 128 |  |  | $ | (83) |  |  | $ | 26 |  |  | $ | (5) |  |  | $ | 273 |  |  | $ | (99) |
Fair Values And Gross Unrealized Losses By Credit Rating Category Of Mortgage Backed Securities |
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Below |  |  |  |  |  |  |  |  |  |  |  |  |
In millions |  | Aaa |  |  | Aa |  |  | A |  |  | Baa |  |  | Investment Grade |  |  | Not Rated |  |  | Total |
Mortgage- backed Securities |  | Fair Value |  |  | Unrealized Loss |  |  | Fair Value |  |  | Unrealized Loss |  |  | Fair Value |  |  | Unrealized Loss |  |  | Fair Value |  |  | Unrealized Loss |  |  | Fair Value |  |  | Unrealized Loss |  |  | Fair Value |  |  | Unrealized Loss |  |  | Fair Value |  |  | Unrealized Loss |
RMBS: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collateralized |  | $ | 41 |  |  | $ | - |  |  | $ | 24 |  |  | $ | - |  |  | $ | - |  |  | $ | - |  |  | $ | - |  |  | $ | - |  |  | $ | 30 |  |  | $ | (5) |  |  | $ | 14 |  |  | $ | (7) |  |  | $ | 109 |  |  | $ | (12) |
Home equity |  |  | - |  |  |  | - |  |  |  | 57 |  |  |  | (10) |  |  |  | - |  |  |  | - |  |  |  | 3 |  |  |  | (1) |  |  |  | 56 |  |  |  | (21) |  |  |  | - |  |  |  | - |  |  |  | 116 |  |  |  | (32) |
Pass-through securities |  |  | 8 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 8 |  |  |  | - |
Other |  |  | - |  |  |  | - |  |  |  | 8 |  |  |  | (3) |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 8 |  |  |  | (3) |
CMBS |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 27 |  |  |  | (4) |  |  |  | 2 |  |  |  | (1) |  |  |  | - |  |  |  | - |  |  |  | 29 |  |  |  | (5) |
Total |  | $ | 49 |  |  | $ | - |  |  | $ | 89 |  |  | $ | (13) |  |  | $ | - |  |  | $ | - |  |  | $ | 30 |  |  | $ | (5) |  |  | $ | 88 |  |  | $ | (27) |  |  | $ | 14 |  |  | $ | (7) |  |  | $ | 270 |  |  | $ | (52) |
Fair Values And Gross Unrealized Losses By Credit Rating Category Of Corporate Obligations |
In millions |  | Aaa |  |  | Aa |  |  | A |  |  | Baa |  |  | Below Investment Grade |  |  | Not Rated |  |  | Total |
|  | Fair Value |  |  | Unrealized Loss |  |  | Fair Value |  |  | Unrealized Loss |  |  | Fair Value |  |  | Unrealized Loss |  |  | Fair Value |  |  | Unrealized Loss |  |  | Fair Value |  |  | Unrealized Loss |  |  | Fair Value |  |  | Unrealized Loss |  |  | Fair Value |  |  | Unrealized Loss |
Corporate Obligations |  | $ | - |  |  | $ | - |  |  | $ | 4 |  |  | $ | - |  |  | $ | 74 |  |  | $ | (6) |  |  | $ | 59 |  |  | $ | (7) |  |  | $ | 14 |  |  | $ | (3) |  |  | $ | 12 |  |  | $ | (12) |  |  | $ | 163 |  |  | $ | (28) |
Held To Maturity Securities In a Continuous Unrealized Loss Position |
|  | September 30, 2012 |
|  | Less than 12 Months |  |  | 12 Months or Longer |  |  | Total |
In millions |  | Fair Value |  |  | Unrealized Losses |  |  | Fair Value |  |  | Unrealized Losses |  |  | Fair Value |  |  | Unrealized Losses |
Assets of consolidated VIEs: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other asset-backed securities |  | $ | - |  |  | $ | - |  |  | $ | 2,350 |  |  | $ | (168) |  |  | $ | 2,350 |  |  | $ | (168) |
|  | December 31, 2011 |
|  | Less than 12 Months |  |  | 12 Months or Longer |  |  | Total |
In millions |  | Fair Value |  |  | Unrealized Losses |  |  | Fair Value |  |  | Unrealized Losses |  |  | Fair Value |  |  | Unrealized Losses |
Assets of consolidated VIEs: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other asset-backed securities |  | $ | 284 |  |  | $ | (31) |  |  | $ | 2,185 |  |  | $ | (340) |  |  | $ | 2,469 |  |  | $ | (371) |
Investment Securities Whose Book Value Exceeded Market Value By More Than 5% |
Percentage Book Value Exceeded Market Value |  | Number of Securities |  |  | Book Value (in millions) |  |  | Fair Value (in millions) |
Greater than 5% to less than 16% |  |  | 35 |  |  | $ | 279 |  |  | $ | 250 |
16% to less than 26% |  |  | 23 |  |  |  | 791 |  |  |  | 621 |
26% to 50% |  |  | 34 |  |  |  | 120 |  |  |  | 75 |
Greater than 50% |  |  | 26 |  |  |  | 87 |  |  |  | 18 |
Total |  |  | 118 |  |  | $ | 1,277 |  |  | $ | 964 |
Securities Held In Unrealized Loss Position and Insured By Financial Guarantor And The Related Insurance Loss Reserve On Company Insured Investments |
In millions |  | Fair Value |  |  | Unrealized Loss |  |  | Insurance Loss Reserve(2) |
Asset-backed: |  |  |  |  |  |  |  |  |  |  |  |
MBIA(1) |  | $ | 148 |  |  | $ | (63) |  |  | $ | 18 |
Other |  |  | 27 |  |  |  | (7) |  |  |  | - |
Total asset-backed |  |  | 175 |  |  |  | (70) |  |  |  | 18 |
Mortgage-backed: |  |  |  |  |  |  |  |  |  |  |  |
MBIA(1) |  |  | 10 |  |  |  | (1) |  |  |  | - |
Other |  |  | 184 |  |  |  | (43) |  |  |  | - |
Total mortgage-backed |  |  | 194 |  |  |  | (44) |  |  |  | - |
Corporate obligations: |  |  |  |  |  |  |  |  |  |  |  |
Other |  |  | 9 |  |  |  | (12) |  |  |  | - |
Total corporate obligations |  |  | 9 |  |  |  | (12) |  |  |  | - |
Other: |  |  |  |  |  |  |  |  |  |  |  |
MBIA(1) |  |  | 72 |  |  |  | (11) |  |  |  | - |
Other |  |  | 8 |  |  |  | - |  |  |  | - |
Total other |  |  | 80 |  |  |  | (11) |  |  |  | - |
Total |  | $ | 458 |  |  | $ | (137) |  |  | $ | 18 |
(1) - Includes investments insured by MBIA Corp. and National. (2) - Insurance loss reserve estimates are based on the proportion of par value owned to the total amount of par value insured.
Available-For-Sale [Member] |
Distribution Of Investments By Contractual Maturity |
|  |  |  |  |  |  |  | Consolidated VIEs |
In millions |  | Amortized Cost |  |  | Fair Value |  |  | Amortized Cost |  |  | Fair Value |
Due in one year or less |  | $ | 828 |  |  | $ | 830 |  |  | $ | 7 |  |  | $ | 7 |
Due after one year through five years |  |  | 844 |  |  |  | 872 |  |  |  | 123 |  |  |  | 132 |
Due after five years through ten years |  |  | 591 |  |  |  | 635 |  |  |  | - |  |  |  | - |
Due after ten years through fifteen years |  |  | 437 |  |  |  | 468 |  |  |  | 84 |  |  |  | 78 |
Due after fifteen years |  |  | 1,363 |  |  |  | 1,483 |  |  |  | - |  |  |  | - |
Mortgage-backed |  |  | 1,221 |  |  |  | 1,246 |  |  |  | 99 |  |  |  | 87 |
Asset-backed |  |  | 360 |  |  |  | 275 |  |  |  | 133 |  |  |  | 123 |
Total fixed-maturity investments |  | $ | 5,644 |  |  | $ | 5,809 |  |  | $ | 446 |  |  | $ | 427 |
Held-To-Maturity [Member] |
Distribution Of Investments By Contractual Maturity |
|  |  |  |  |  |  |  | Consolidated VIEs |
In millions |  | Amortized Cost |  |  | Fair Value |  |  | Amortized Cost |  |  | Fair Value |
Due in one year or less |  | $ | - |  |  | $ | - |  |  | $ | - |  |  | $ | - |
Due after one year through five years(1) |  |  | 1 |  |  |  | 1 |  |  |  | - |  |  |  | - |
Due after five years through ten years |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Due after ten years through fifteen years |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Due after fifteen years |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Mortgage-backed |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Asset-backed |  |  | - |  |  |  | - |  |  |  | 3,015 |  |  |  | 2,867 |
Total held-to-maturity investments |  | $ | 1 |  |  | $ | 1 |  |  | $ | 3,015 |  |  | $ | 2,867 |
(1) - Relates to tax credit investments reported in “Other investments” on the Company’s consolidated balance sheets.

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