XML 58 R28.htm IDEA: XBRL DOCUMENT ﻿
v2.3.0.11

Investments (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2011
Available For Sale In Consolidated Investment Portfolio |
|  | June 30, 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 |  | $ | 914 |  |  | $ | 16 |  |  | $ | (1) |  |  | $ | 929 |  |  | $ | - |
Foreign governments |  |  | 377 |  |  |  | 17 |  |  |  | - |  |  |  | 394 |  |  |  | - |
Corporate obligations |  |  | 2,183 |  |  |  | 49 |  |  |  | (73) |  |  |  | 2,159 |  |  |  | - |
Mortgage-backed securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Residential mortgage-backed agency |  |  | 1,363 |  |  |  | 43 |  |  |  | (5) |  |  |  | 1,401 |  |  |  | - |
Residential mortgage-backed non-agency |  |  | 552 |  |  |  | 54 |  |  |  | (114) |  |  |  | 492 |  |  |  | (136) |
Commercial mortgage-backed |  |  | 87 |  |  |  | 1 |  |  |  | (7) |  |  |  | 81 |  |  |  | - |
Asset-backed securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collateralized debt obligations |  |  | 413 |  |  |  | - |  |  |  | (130) |  |  |  | 283 |  |  |  | (49) |
Other asset-backed |  |  | 673 |  |  |  | 6 |  |  |  | (121) |  |  |  | 558 |  |  |  | - |
State and municipal bonds |  |  | 812 |  |  |  | 14 |  |  |  | (32) |  |  |  | 794 |  |  |  | - |
Total taxable bonds |  |  | 7,374 |  |  |  | 200 |  |  |  | (483) |  |  |  | 7,091 |  |  |  | (185) |
Tax-exempt bonds: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
State and municipal bonds |  |  | 2,640 |  |  |  | 23 |  |  |  | (40) |  |  |  | 2,623 |  |  |  | - |
Total tax-exempt bonds |  |  | 2,640 |  |  |  | 23 |  |  |  | (40) |  |  |  | 2,623 |  |  |  | - |
Total fixed-maturity investments |  |  | 10,014 |  |  |  | 223 |  |  |  | (523) |  |  |  | 9,714 |  |  |  | (185) |
Other investments: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Perpetual preferred securities |  |  | 176 |  |  |  | 2 |  |  |  | (8) |  |  |  | 170 |  |  |  | - |
Other investments |  |  | 30 |  |  |  | 2 |  |  |  | - |  |  |  | 32 |  |  |  | - |
Money market securities |  |  | 750 |  |  |  | - |  |  |  | - |  |  |  | 750 |  |  |  | - |
Total other investments |  |  | 956 |  |  |  | 4 |  |  |  | (8) |  |  |  | 952 |  |  |  | - |
Assets of consolidated VIEs: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Asset-backed securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collateralized debt obligations |  |  | 82 |  |  |  | 1 |  |  |  | (1) |  |  |  | 82 |  |  |  | - |
Other asset-backed |  |  | 52 |  |  |  | 1 |  |  |  | - |  |  |  | 53 |  |  |  | - |
Other investments: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Money market securities |  |  | 145 |  |  |  | - |  |  |  | - |  |  |  | 145 |  |  |  | - |
Total available-for-sale investments |  | $ | 11,249 |  |  | $ | 229 |  |  | $ | (532) |  |  | $ | 10,946 |  |  | $ | (185) |
(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 |
|  | June 30, 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 |  | $ | 30 |  |  | $ | (1) |  |  | $ | - |  |  | $ | - |  |  | $ | 30 |  |  | $ | (1) |
Foreign governments |  |  | 17 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 17 |  |  |  | - |
Corporate obligations |  |  | 320 |  |  |  | (6) |  |  |  | 539 |  |  |  | (67) |  |  |  | 859 |  |  |  | (73) |
Mortgage-backed securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Residential mortgage-backed agency |  |  | 391 |  |  |  | (4) |  |  |  | 54 |  |  |  | (1) |  |  |  | 445 |  |  |  | (5) |
Residential mortgage-backed non-agency |  |  | 51 |  |  |  | (3) |  |  |  | 293 |  |  |  | (111) |  |  |  | 344 |  |  |  | (114) |
Commercial mortgage-backed |  |  | 9 |  |  |  | (1) |  |  |  | 51 |  |  |  | (6) |  |  |  | 60 |  |  |  | (7) |
Asset-backed securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collateralized debt obligations |  |  | 6 |  |  |  | (2) |  |  |  | 252 |  |  |  | (128) |  |  |  | 258 |  |  |  | (130) |
Other asset-backed |  |  | 36 |  |  |  | (1) |  |  |  | 387 |  |  |  | (120) |  |  |  | 423 |  |  |  | (121) |
State and municipal bonds |  |  | 308 |  |  |  | (9) |  |  |  | 138 |  |  |  | (23) |  |  |  | 446 |  |  |  | (32) |
Total taxable bonds |  |  | 1,168 |  |  |  | (27) |  |  |  | 1,714 |  |  |  | (456) |  |  |  | 2,882 |  |  |  | (483) |
Tax-exempt bonds: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
State and municipal bonds |  |  | 1,190 |  |  |  | (25) |  |  |  | 190 |  |  |  | (16) |  |  |  | 1,380 |  |  |  | (41) |
Total tax-exempt bonds |  |  | 1,190 |  |  |  | (25) |  |  |  | 190 |  |  |  | (16) |  |  |  | 1,380 |  |  |  | (41) |
Total fixed-maturity investments |  |  | 2,358 |  |  |  | (52) |  |  |  | 1,904 |  |  |  | (472) |  |  |  | 4,262 |  |  |  | (524) |
Other investments: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Perpetual preferred securities |  |  | 44 |  |  |  | (1) |  |  |  | 89 |  |  |  | (7) |  |  |  | 133 |  |  |  | (8) |
Total other investments |  |  | 44 |  |  |  | (1) |  |  |  | 89 |  |  |  | (7) |  |  |  | 133 |  |  |  | (8) |
Assets of consolidated VIEs: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Asset-backed securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collateralized debt obligations |  |  | 5 |  |  |  | - |  |  |  | 12 |  |  |  | - |  |  |  | 17 |  |  |  | - |
Total |  | $ | 2,407 |  |  | $ | (53) |  |  | $ | 2,005 |  |  | $ | (479) |  |  | $ | 4,412 |  |  | $ | (532) |
|  | 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 |  | $ | 2 |  |  | $ | - |  |  | $ | 16 |  |  | $ | (4) |  |  | $ | 7 |  |  | $ | (2) |  |  | $ | - |  |  | $ | - |  |  | $ | 56 |  |  | $ | (92) |  |  | $ | - |  |  | $ | - |  |  | $ | 81 |  |  | $ | (98) |
Corporate CDO |  |  | 59 |  |  |  | (6) |  |  |  | 17 |  |  |  | (4) |  |  |  | 68 |  |  |  | (11) |  |  |  | 22 |  |  |  | (7) |  |  |  | 44 |  |  |  | (15) |  |  |  | 26 |  |  |  | (3) |  |  |  | 236 |  |  |  | (46) |
Auto loans |  |  | - |  |  |  | - |  |  |  | 2 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 13 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 15 |  |  |  | - |
Credit cards |  |  | 42 |  |  |  | - |  |  |  | 5 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 1 |  |  |  | - |  |  |  | 48 |  |  |  | - |
Equipment leases |  |  | 1 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 31 |  |  |  | (2) |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 32 |  |  |  | (2) |
Small business/ student loans |  |  | 19 |  |  |  | (2) |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 12 |  |  |  | (1) |  |  |  | - |  |  |  | - |  |  |  | 31 |  |  |  | (3) |
Other ABS |  |  | 11 |  |  |  | - |  |  |  | 20 |  |  |  | (3) |  |  |  | 33 |  |  |  | (6) |  |  |  | 131 |  |  |  | (10) |  |  |  | 23 |  |  |  | (6) |  |  |  | 37 |  |  |  | (77) |  |  |  | 255 |  |  |  | (102) |
Total |  | $ | 134 |  |  | $ | (8) |  |  | $ | 60 |  |  | $ | (11) |  |  | $ | 108 |  |  | $ | (19) |  |  | $ | 184 |  |  | $ | (19) |  |  | $ | 148 |  |  | $ | (114) |  |  | $ | 64 |  |  | $ | (80) |  |  | $ | 698 |  |  | $ | (251) |
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 |  | $ | 63 |  |  | $ | - |  |  | $ | 50 |  |  | $ | (15) |  |  | $ | 11 |  |  | $ | (1) |  |  | $ | - |  |  | $ | - |  |  | $ | 36 |  |  | $ | (21) |  |  | $ | 1 |  |  | $ | (3) |  |  | $ | 161 |  |  | $ | (40) |
Home equity |  |  | 27 |  |  |  | - |  |  |  | 90 |  |  |  | (22) |  |  |  | 2 |  |  |  | - |  |  |  | 1 |  |  |  | - |  |  |  | 99 |  |  |  | (45) |  |  |  | - |  |  |  | - |  |  |  | 219 |  |  |  | (67) |
Pass-through securities |  |  | 391 |  |  |  | (5) |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 391 |  |  |  | (5) |
Other |  |  | - |  |  |  | - |  |  |  | 18 |  |  |  | (4) |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 9 |  |  |  | (4) |  |  |  | - |  |  |  | - |  |  |  | 27 |  |  |  | (8) |
CMBS |  |  | 1 |  |  |  | - |  |  |  | 17 |  |  |  | (1) |  |  |  | 1 |  |  |  | - |  |  |  | 27 |  |  |  | (5) |  |  |  | 1 |  |  |  | - |  |  |  | 4 |  |  |  | - |  |  |  | 51 |  |  |  | (6) |
Total |  | $ | 482 |  |  | $ | (5) |  |  | $ | 175 |  |  | $ | (42) |  |  | $ | 14 |  |  | $ | (1) |  |  | $ | 28 |  |  | $ | (5) |  |  | $ | 145 |  |  | $ | (70) |  |  | $ | 5 |  |  | $ | (3) |  |  | $ | 849 |  |  | $ | (126) |
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 |  | $ | 83 |  |  | $ | - |  |  | $ | 174 |  |  | $ | (16) |  |  | $ | 295 |  |  | $ | (23) |  |  | $ | 227 |  |  | $ | (30) |  |  | $ | 79 |  |  | $ | (2) |  |  | $ | 1 |  |  | $ | (2) |  |  | $ | 859 |  |  | $ | (73) |
Held To Maturity Securities In Continuous Unrealized Loss Position |
|  |  | 0000000000 |  |  |  | 0000000000 |  |  |  | 0000000000 |  |  |  | 0000000000 |  |  |  | 0000000000 |  |  |  | 0000000000 |
|  | June 30, 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 |  | $ | - |  |  | $ | - |  |  | $ | 3,383 |  |  | $ | (235) |  |  | $ | 3,383 |  |  | $ | (235) |
Total |  | $ | - |  |  | $ | - |  |  | $ | 3,383 |  |  | $ | (235) |  |  | $ | 3,383 |  |  | $ | (235) |
|  | 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% |
|  |  | 000000000000 |  |  |  | 000000000000 |  |  |  | 000000000000 |
Percentage Book Value Exceeded Market Value |  | Number of Securities |  |  | Book Value (in millions) |  |  | Fair Value (in millions) |
5% to 15% |  |  | 96 |  |  | $ | 2,124 |  |  | $ | 1,959 |
16% to 25% |  |  | 50 |  |  |  | 444 |  |  |  | 357 |
26% to 50% |  |  | 66 |  |  |  | 292 |  |  |  | 187 |
Greater than 50% |  |  | 42 |  |  |  | 248 |  |  |  | 71 |
Total |  |  | 254 |  |  | $ | 3,108 |  |  | $ | 2,574 |
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) |  | $ | 332 |  |  | $ | (78 | ) |  | $ | 16 |
Other |  |  | 93 |  |  |  | (20 | ) |  |  | - |
Total asset-backed |  |  | 425 |  |  |  | (98 | ) |  |  | 16 |
Mortgage-backed: |  |  |  |  |  |  |  |  |  |  |  |
MBIA(1) |  |  | 15 |  |  |  | (5 | ) |  |  | 5 |
Other |  |  | 292 |  |  |  | (107 | ) |  |  | - |
Total mortgage-backed |  |  | 307 |  |  |  | (112 | ) |  |  | 5 |
Corporate obligations: |  |  |  |  |  |  |  |  |  |  |  |
MBIA(1) |  |  | 173 |  |  |  | (13 | ) |  |  | - |
Other |  |  | 56 |  |  |  | (11 | ) |  |  | - |
Total corporate obligations |  |  | 229 |  |  |  | (24 | ) |  |  | - |
Other: |  |  |  |  |  |  |  |  |  |  |  |
MBIA(1) |  |  | 280 |  |  |  | (32 | ) |  |  | - |
Other |  |  | 302 |  |  |  | (12 | ) |  |  | - |
Total other |  |  | 582 |  |  |  | (44 | ) |  |  | - |
Total |  | $ | 1,543 |  |  | $ | (278 | ) |  | $ | 21 |
(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. |
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 |  |  | - |  |  |  | - |  |  |  | 3,934 |  |  |  | 3,703 |
Total held-to-maturity investments |  | $ | 1 |  |  | $ | 1 |  |  | $ | 3,934 |  |  | $ | 3,703 |
(1) - Relates to tax credit investments reported in "Other investments" on the Company's consolidated balance sheet. |
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 |  | $ | 960 |  |  | $ | 962 |  |  | $ | - |  |  | $ | - |
Due after one year through five years |  |  | 1,086 |  |  |  | 1,126 |  |  |  | - |  |  |  | - |
Due after five years through ten years |  |  | 1,123 |  |  |  | 1,133 |  |  |  | - |  |  |  | - |
Due after ten years through fifteen years |  |  | 777 |  |  |  | 779 |  |  |  | - |  |  |  | - |
Due after fifteen years |  |  | 2,980 |  |  |  | 2,899 |  |  |  | - |  |  |  | - |
Mortgage-backed |  |  | 2,002 |  |  |  | 1,974 |  |  |  | - |  |  |  | - |
Asset-backed |  |  | 1,086 |  |  |  | 841 |  |  |  | 134 |  |  |  | 135 |
Total fixed-maturity investments |  | $ | 10,014 |  |  | $ | 9,714 |  |  | $ | 134 |  |  | $ | 135 |

X
- Definition Schedule of Available For Sale Securities Continuous Unrealized Loss Position + Details
Name: | mbi_ScheduleOfAvailableForSaleSecuritiesContinuousUnrealizedLossPositionTextBlock
Namespace Prefix: | mbi
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Schedule of Fair Values and Gross Unrealized Losses by Credit Rating Category of Asset Backed Securities [Table Text Block] + Details
Name: | mbi_ScheduleOfFairValuesAndGrossUnrealizedLossesByCreditRatingCategoryOfAssetBackedSecuritiesTableTextBlock
Namespace Prefix: | mbi
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Schedule of Fair Values and Gross Unrealized Losses by Credit Rating Category of Corporate Obligations [Table Text Block] + Details
Name: | mbi_ScheduleOfFairValuesAndGrossUnrealizedLossesByCreditRatingCategoryOfCorporateObligationsTableTextBlock
Namespace Prefix: | mbi
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Schedule of Fair Values and Gross Unrealized Losses by Credit Rating Category of Mortgage Backed Securities [Table Text Block] + Details
Name: | mbi_ScheduleOfFairValuesAndGrossUnrealizedLossesByCreditRatingCategoryOfMortgageBackedSecuritiesTableTextBlock
Namespace Prefix: | mbi
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Schedule Of Held To Maturity Securities Continuous Unrealized Loss Position + Details
Name: | mbi_ScheduleOfHeldToMaturitySecuritiesContinuousUnrealizedLossPositionTextBlock
Namespace Prefix: | mbi
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Schedule Of Investments Securities Book Value Exceeding Market Value By More Than Five Percent [Text Block] + Details
Name: | mbi_ScheduleOfInvestmentsSecuritiesBookValueExceedingMarketValueByMoreThanFivePercentTextBlock
Namespace Prefix: | mbi
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Securities held in unrealized loss position and insured by financial guarantor and the related insurance loss reserve on company insured investments. + Details
Name: | mbi_SecuritiesHeldInUnrealizedLossPositionAndInsuredByFinancialGuarantorAndRelatedInsuranceLossReserveOnCompanyInsuredInvestmentsTextBlock
Namespace Prefix: | mbi
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of available-for-sale securities which consist of all investments in certain debt and equity securities neither classified as trading or held-to-maturity securities. A debt security represents a creditor relationship with an enterprise. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62557-112803 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Staff Position (FSP) -Number FAS115-1/124-1 -Paragraph 17 -Subparagraph a, b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62586-112803 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 19, 20, 21 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27290-111563 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 03-1 -Paragraph 21 -Subparagraph a, b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27357-111563 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27198-111563 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27337-111563 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27161-111563 + Details
Name: | us-gaap_AvailableForSaleSecuritiesTextBlock
Namespace Prefix: | us-gaap
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments. + Details
Name: | us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock
Namespace Prefix: | us-gaap
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration