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Investments (Tables) | 12 Months Ended
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Dec. 31, 2011
Available-For-Sale In Consolidated Investment Portfolio |
|  | 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 |  |  |  | (125) |
Commercial mortgage-backed |  |  | 58 |  |  |  | 1 |  |  |  | (10) |  |  |  | 49 |  |  |  | — |
Asset-backed securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collateralized debt obligations |  |  | 251 |  |  |  | — |  |  |  | (118) |  |  |  | 133 |  |  |  | (69) |
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 |  |  |  | (233) |
Tax-exempt bonds: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
State and municipal bonds |  |  | 1,122 |  |  |  | 41 |  |  |  | (2) |  |  |  | 1,161 |  |  |  | — |
Total tax-exempt bonds |  |  | 1,122 |  |  |  | 41 |  |  |  | (2) |  |  |  | 1,161 |  |  |  | — |
Total fixed-maturity investments |  |  | 7,492 |  |  |  | 262 |  |  |  | (418) |  |  |  | 7,336 |  |  |  | (233) |
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 |  |  | $ | (233) |
(1)—Represents the amount of other-than-temporary losses recognized in accumulated other comprehensive income (loss) since the adoption of the accounting guidance for other-than-temporary impairments.
|  | December 31, 2010 |
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 |  | $ | 1,055 |  |  | $ | 12 |  |  | $ | (3) |  |  | $ | 1,064 |  |  | $ | — |
Foreign governments |  |  | 451 |  |  |  | 19 |  |  |  | (1) |  |  |  | 469 |  |  |  | — |
Corporate obligations |  |  | 2,922 |  |  |  | 49 |  |  |  | (127) |  |  |  | 2,844 |  |  |  | — |
Mortgage-backed securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Residential mortgage-backed agency |  |  | 1,537 |  |  |  | 39 |  |  |  | (13) |  |  |  | 1,563 |  |  |  | — |
Residential mortgage-backed non-agency |  |  | 627 |  |  |  | 36 |  |  |  | (180) |  |  |  | 483 |  |  |  | (155) |
Commercial mortgage-backed |  |  | 199 |  |  |  | 24 |  |  |  | (19) |  |  |  | 204 |  |  |  | — |
Asset-backed securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collateralized debt obligations |  |  | 472 |  |  |  | 1 |  |  |  | (180) |  |  |  | 293 |  |  |  | (86) |
Other asset-backed |  |  | 732 |  |  |  | 1 |  |  |  | (112) |  |  |  | 621 |  |  |  | — |
State and municipal bonds |  |  | 797 |  |  |  | 7 |  |  |  | (52) |  |  |  | 752 |  |  |  | — |
Total taxable bonds |  |  | 8,792 |  |  |  | 188 |  |  |  | (687) |  |  |  | 8,293 |  |  |  | (241) |
Tax-exempt bonds: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
State and municipal bonds |  |  | 2,907 |  |  |  | 19 |  |  |  | (104) |  |  |  | 2,822 |  |  |  | — |
Total tax-exempt bonds |  |  | 2,907 |  |  |  | 19 |  |  |  | (104) |  |  |  | 2,822 |  |  |  | — |
Total fixed-maturity investments |  |  | 11,699 |  |  |  | 207 |  |  |  | (791) |  |  |  | 11,115 |  |  |  | (241) |
Other investments: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Perpetual preferred securities |  |  | 195 |  |  |  | 8 |  |  |  | (12) |  |  |  | 191 |  |  |  | — |
Other investments |  |  | 38 |  |  |  | 3 |  |  |  | — |  |  |  | 41 |  |  |  | — |
Money market securities |  |  | 552 |  |  |  | — |  |  |  | — |  |  |  | 552 |  |  |  | — |
Total other investments |  |  | 785 |  |  |  | 11 |  |  |  | (12) |  |  |  | 784 |  |  |  | — |
Assets of consolidated VIEs: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Asset-backed securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collateralized debt obligations |  |  | 91 |  |  |  | — |  |  |  | (1) |  |  |  | 90 |  |  |  | — |
Other asset-backed |  |  | 98 |  |  |  | 2 |  |  |  | — |  |  |  | 100 |  |  |  | — |
Other investments: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Money market securities |  |  | 149 |  |  |  | — |  |  |  | — |  |  |  | 149 |  |  |  | — |
Total available-for-sale investments |  | $ | 12,822 |  |  | $ | 220 |  |  | $ | (804) |  |  | $ | 12,238 |  |  | $ | (241) |
(1)—Represents the amount of other-than-temporary losses recognized in accumulated other comprehensive income (loss) since the adoption of the accounting guidance for other-than-temporary impairments.
Available-For-Sale Securities In Continuous Unrealized Loss Position |
|  | 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 tax-exempt 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) |
Total other investments |  |  | 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) |
|  | December 31, 2010 |
|  | 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 |  | $ | 370 |  |  | $ | (3 | ) |  | $ | — |  |  | $ | — |  |  | $ | 370 |  |  | $ | (3 | )
Foreign governments |  |  | 33 |  |  |  | (1 | ) |  |  | — |  |  |  | — |  |  |  | 33 |  |  |  | (1 | )
Corporate obligations |  |  | 685 |  |  |  | (13 | ) |  |  | 725 |  |  |  | (114 | ) |  |  | 1,410 |  |  |  | (127 | )
Mortgage-backed securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Residential mortgage-backed agency |  |  | 785 |  |  |  | (11 | ) |  |  | 59 |  |  |  | (2 | ) |  |  | 844 |  |  |  | (13 | )
Residential mortgage-backed non-agency |  |  | 51 |  |  |  | (2 | ) |  |  | 336 |  |  |  | (178 | ) |  |  | 387 |  |  |  | (180 | )
Commercial mortgage-backed |  |  | 11 |  |  |  | — |  |  |  | 85 |  |  |  | (19 | ) |  |  | 96 |  |  |  | (19 | )
Asset-backed securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collateralized debt obligations |  |  | 3 |  |  |  | — |  |  |  | 278 |  |  |  | (180 | ) |  |  | 281 |  |  |  | (180 | )
Other asset-backed |  |  | 61 |  |  |  | (2 | ) |  |  | 480 |  |  |  | (110 | ) |  |  | 541 |  |  |  | (112 | )
State and municipal bonds |  |  | 437 |  |  |  | (26 | ) |  |  | 135 |  |  |  | (26 | ) |  |  | 572 |  |  |  | (52 | )
Total taxable bonds |  |  | 2,436 |  |  |  | (58 | ) |  |  | 2,098 |  |  |  | (629 | ) |  |  | 4,534 |  |  |  | (687 | )
Tax-exempt bonds: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
State and municipal bonds |  |  | 2,002 |  |  |  | (83 | ) |  |  | 181 |  |  |  | (21 | ) |  |  | 2,183 |  |  |  | (104 | )
Total tax-exempt bonds |  |  | 2,002 |  |  |  | (83 | ) |  |  | 181 |  |  |  | (21 | ) |  |  | 2,183 |  |  |  | (104 | )
Total fixed-maturity investments |  |  | 4,438 |  |  |  | (141 | ) |  |  | 2,279 |  |  |  | (650 | ) |  |  | 6,717 |  |  |  | (791 | )
Other investments: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Perpetual preferred securities |  |  | 20 |  |  |  | — |  |  |  | 140 |  |  |  | (12 | ) |  |  | 160 |  |  |  | (12 | )
Other investments |  |  | 3 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 3 |  |  |  | — |
Total other investments |  |  | 23 |  |  |  | — |  |  |  | 140 |  |  |  | (12 | ) |  |  | 163 |  |  |  | (12 | )
Assets of consolidated VIEs: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Asset-backed securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collateralized debt obligations |  |  | 62 |  |  |  | (1 | ) |  |  | 5 |  |  |  | — |  |  |  | 67 |  |  |  | (1 | )
Other asset-backed |  |  | 7 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 7 |  |  |  | — |
Total |  | $ | 4,530 |  |  | $ | (142 | ) |  | $ | 2,424 |  |  | $ | (662 | ) |  | $ | 6,954 |  |  | $ | (804 | )
Fair Values And Gross Unrealized Losses By Credit Rating Category Of Asset Backed Securities |
In millions |  | Aaa |  |  | Aa |  |  | A |  |  | Baa |  |  | Below 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 |  | $ | 5 |  |  | $ | — |  |  | $ | 5 |  |  | $ | — |  |  | $ | 6 |  |  | $ | (2) |  |  | $ | 1 |  |  | $ | (3) |  |  | $ | 23 |  |  | $ | (57) |  |  | $ | — |  |  | $ | — |  |  | $ | 40 |  |  | $ | (62) |
Corporate CDO |  |  | 45 |  |  |  | (8) |  |  |  | 65 |  |  |  | (8) |  |  |  | — |  |  |  | — |  |  |  | 21 |  |  |  | (9) |  |  |  | 63 |  |  |  | (45) |  |  |  | 39 |  |  |  | (9) |  |  |  | 233 |  |  |  | (79) |
Auto loans |  |  | 2 |  |  |  | — |  |  |  | 2 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 13 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 17 |  |  |  | — |
Credit cards |  |  | 3 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 3 |  |  |  | — |
Equipment leases |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 19 |  |  |  | (2) |  |  |  | 7 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 26 |  |  |  | (2) |
Small business/ student loans |  |  | 16 |  |  |  | (2) |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 11 |  |  |  | (1) |  |  |  | — |  |  |  | — |  |  |  | 27 |  |  |  | (3) |
Other ABS |  |  | 4 |  |  |  | — |  |  |  | 29 |  |  |  | (5) |  |  |  | 54 |  |  |  | (11) |  |  |  | 61 |  |  |  | (7) |  |  |  | 12 |  |  |  | (3) |  |  |  | 133 |  |  |  | (43) |  |  |  | 293 |  |  |  | (69) |
Total |  | $ | 75 |  |  | $ | (10) |  |  | $ | 101 |  |  | $ | (13) |  |  | $ | 79 |  |  | $ | (15) |  |  | $ | 90 |  |  | $ | (19) |  |  | $ | 122 |  |  | $ | (106) |  |  | $ | 172 |  |  | $ | (52) |  |  | $ | 639 |  |  | $ | (215) |
Fair Values And Gross Unrealized Losses By Credit Rating Category Of Mortgage Backed Securities |
In millions |  | Aaa |  |  | Aa |  |  | A |  |  | Baa |  |  | Below 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 |  | $ | 69 |  |  | $ | — |  |  | $ | 39 |  |  | $ | (10) |  |  | $ | 10 |  |  | $ | (1) |  |  | $ | 2 |  |  | $ | — |  |  | $ | 34 |  |  | $ | (16) |  |  | $ | 13 |  |  | $ | (12) |  |  | $ | 167 |  |  | $ | (39) |
Home equity |  |  | 2 |  |  |  | — |  |  |  | 80 |  |  |  | (22) |  |  |  | 1 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 84 |  |  |  | (40) |  |  |  | 1 |  |  |  | — |  |  |  | 168 |  |  |  | (62) |
Pass-through securities |  |  | 20 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 20 |  |  |  | — |
Other |  |  | — |  |  |  | — |  |  |  | 9 |  |  |  | (4) |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 7 |  |  |  | (4) |  |  |  | — |  |  |  | — |  |  |  | 16 |  |  |  | (8) |
CMBS |  |  | 2 |  |  |  | — |  |  |  | 1 |  |  |  | — |  |  |  | 2 |  |  |  | — |  |  |  | 23 |  |  |  | (9) |  |  |  | 1 |  |  |  | (1) |  |  |  | 1 |  |  |  | — |  |  |  | 30 |  |  |  | (10) |
Total |  | $ | 93 |  |  | $ | — |  |  | $ | 129 |  |  | $ | (36) |  |  | $ | 13 |  |  | $ | (1) |  |  | $ | 25 |  |  | $ | (9) |  |  | $ | 126 |  |  | $ | (61) |  |  | $ | 15 |  |  | $ | (12) |  |  | $ | 401 |  |  | $ | (119) |
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 |  | $ | 70 |  |  | $ | — |  |  | $ | 71 |  |  | $ | (8) |  |  | $ | 209 |  |  | $ | (37) |  |  | $ | 224 |  |  | $ | (35) |  |  | $ | 27 |  |  | $ | — |  |  | $ | 116 |  |  | $ | (26) |  |  | $ | 717 |  |  | $ | (106) |
Held-To-Maturity Securities In Continuous Unrealized Loss Position |
|  | 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) |
Total |  | $ | 284 |  |  | $ | (31) |  |  | $ | 2,185 |  |  | $ | (340) |  |  | $ | 2,469 |  |  | $ | (371) |
|  | December 31, 2010 |
|  | 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 |  | $ | — |  |  | $ | — |  |  | $ | 3,760 |  |  | $ | (279) |  |  | $ | 3,760 |  |  | $ | (279) |
Total |  | $ | — |  |  | $ | — |  |  | $ | 3,760 |  |  | $ | (279) |  |  | $ | 3,760 |  |  | $ | (279) |
Investment Securities, Unrealized Loss Position For Longer Than 12 Months 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) |
5% to less than 16% |  |  | 56 |  |  | $ | 2,341 |  |  | $ | 2,091 |
16% to less than 26% |  |  | 42 |  |  |  | 1,047 |  |  |  | 821 |
26% to 50% |  |  | 79 |  |  |  | 532 |  |  |  | 350 |
Greater than 50% |  |  | 41 |  |  |  | 167 |  |  |  | 47 |
Total |  |  | 218 |  |  | $ | 4,087 |  |  | $ | 3,309 |
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) |  | $ | 338 |  |  | $ | (78) |  |  | $ | 17 |
Other |  |  | 111 |  |  |  | (24) |  |  |  | — |
Total asset-backed |  |  | 449 |  |  |  | (102) |  |  |  | 17 |
Mortgage-backed: |  |  |  |  |  |  |  |  |  |  |  |
MBIA(1) |  |  | 18 |  |  |  | (5) |  |  |  | — |
Other |  |  | 239 |  |  |  | (95) |  |  |  | — |
Total mortgage-backed |  |  | 257 |  |  |  | (100) |  |  |  | — |
Corporate obligations: |  |  |  |  |  |  |  |  |  |  |  |
MBIA(1) |  |  | 97 |  |  |  | (17) |  |  |  | — |
Other |  |  | 74 |  |  |  | (15) |  |  |  | — |
Total corporate obligations |  |  | 171 |  |  |  | (32) |  |  |  | — |
Other: |  |  |  |  |  |  |  |  |  |  |  |
MBIA(1) |  |  | 102 |  |  |  | (16) |  |  |  | — |
Other |  |  | 30 |  |  |  | — |  |  |  | — |
Total other |  |  | 132 |  |  |  | (16) |  |  |  | — |
Total |  | $ | 1,009 |  |  | $ | (250) |  |  | $ | 17 |
(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 |  | $ | 639 |  |  | $ | 640 |  |  | $ | — |  |  | $ | — |
Due after one year through five years |  |  | 1,451 |  |  |  | 1,465 |  |  |  | 2 |  |  |  | 2 |
Due after five years through ten years |  |  | 683 |  |  |  | 707 |  |  |  | — |  |  |  | — |
Due after ten years through fifteen years |  |  | 578 |  |  |  | 583 |  |  |  | — |  |  |  | — |
Due after fifteen years |  |  | 1,789 |  |  |  | 1,801 |  |  |  | — |  |  |  | — |
Mortgage-backed |  |  | 1,581 |  |  |  | 1,567 |  |  |  | 119 |  |  |  | 93 |
Asset-backed |  |  | 771 |  |  |  | 573 |  |  |  | 153 |  |  |  | 138 |
Total fixed-maturity investments |  | $ | 7,492 |  |  | $ | 7,336 |  |  | $ | 274 |  |  | $ | 233 |
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 |  |  | — |  |  |  | — |  |  |  | 3,843 |  |  |  | 3,489 |
Total held-to-maturity investments |  | $ | 1 |  |  | $ | 1 |  |  | $ | 3,843 |  |  | $ | 3,489 |
(1)—Relates to tax credit investments reported in "Other investments" on the Company's consolidated balance sheets.

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