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Debt (Tables) | 12 Months Ended
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Dec. 31, 2015
Debt Disclosure [Abstract] |
Long-term debt |
|  |  | As of December 31, |
| In millions |  | 2015 |  | 2014 |
| 6.400% Senior Notes due 2022 (1) |  | $ | 266 |  | $ | 266 |
| 7.000% Debentures due 2025 |  |  | 46 |  |  | 56 |
| 7.150% Debentures due 2027 |  |  | 100 |  |  | 100 |
| 6.625% Debentures due 2028 |  |  | 141 |  |  | 141 |
| 5.700% Senior Notes due 2034 (2) |  |  | 21 |  |  | 21 |
| Accrued interest |  |  | 8 |  |  | 8 |
|  |  |  | 582 |  |  | 592 |
| 14% Surplus Notes due 2033 (3) |  |  | 940 |  |  | 940 |
| Accrued interest |  |  | 386 |  |  | 278 |
| Total |  | $ | 1,908 |  | $ | 1,810 |
| ________________ |  |  |  |  |  |
| (1) - Callable on or after August 15, 2006 at 100.00. |
| (2) - Callable anytime at the greater of 100.00 or the present value of the remaining scheduled |
| payments of principal and interest. |
| (3) - Callable on or after January 15, 2018 and every fifth anniversary thereafter at 100.00. |
Aggregate maturity of debt obligations |
In millions |  | 2016 |  | 2017 |  | 2018 |  | 2019 |  | 2020 |  | Thereafter |  | Total
Corporate debt |  | $ | - |  | $ | - |  | $ | - |  | $ | - |  | $ | - |  | $ | 574 |  | $ | 574
14% Surplus Notes due 2033 (1) |  |  | - |  |  | - |  |  | 940 |  |  | - |  |  | - |  |  | - |  |  | 940
Total debt obligations due |  | $ | - |  | $ | - |  | $ | 940 |  | $ | - |  | $ | - |  | $ | 574 |  | $ | 1,514
__________ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
(1) - Callable on or after January 15, 2018 and every fifth anniversary thereafter at 100.00 subject to the prior approval by the Superintendent of the NYSDFS.
Principal payments due under investment agreement obligations |
|  |  | Principal |
| In millions |  | Amount |
| Maturity date: |  |  |  |
| 2016 |  | $ | 36 |
| 2017 |  |  | 55 |
| 2018 |  |  | 17 |
| 2019 |  |  | 7 |
| 2020 |  |  | 37 |
| Thereafter |  |  | 373 |
| Total expected principal payments (1) |  | $ | 525 |
| Less discount and other adjustments (2) |  |  | 63 |
| Total |  | $ | 462 |
| ________________ |  |  |
| (1)- Amounts reflect principal due at maturity for investment agreements issued at a discount. |
| (2)- Includes discounts of $69 million on investment agreements, net of accrued interest of $6 million. |
Principal payments due under medium-term note obligations based on contractual maturity |
|  |  | Principal |
| In millions |  | Amount |
| Maturity date: |  |  |  |
| 2016 |  | $ | 112 |
| 2017 |  |  | 39 |
| 2018 |  |  | 59 |
| 2019 |  |  | 55 |
| 2020 |  |  | 1 |
| Thereafter |  |  | 1,098 |
| Total expected principal payments (1) |  | $ | 1,364 |
| Less discount and other adjustments (2) |  |  | 348 |
| Total |  | $ | 1,016 |
| ________________ |  |  |
| (1)- Amounts reflect principal due at maturity for notes issued at a discount or premium. |
| (2)- Includes discounts of $296 million, fair value adjustments of $56 million, net of accrued interest of $4 million. |
Maturity of VIE notes, by segment |
| In millions |  |  |
| Maturity date: |  |  |  |
| 2016 |  | $ | 567 |
| 2017 |  |  | 516 |
| 2018 |  |  | 505 |
| 2019 |  |  | 364 |
| 2020 |  |  | 314 |
| Thereafter |  |  | 2,785 |
| Total |  | $ | 5,051 (1) |
| _______________ |  |  |  |
| (1) - Includes $2.4 billion of VIE notes accounted for at fair value as of December 31, 2015.

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