Debt (Tables)

12 Months Ended

Dec. 31, 2016

Debt Disclosure [Abstract]

Long-term debt

	As of December 31,
In millions	2016		2015
6.400% Senior Notes due 2022 (1)	$	266	$	266
7.000% Debentures due 2025		46		46
7.150% Debentures due 2027		100		100
6.625% Debentures due 2028		141		141
5.700% Senior Notes due 2034 (2)		21		21
Surplus Notes due 2033 (3)		940		940
Accrued interest		506		394
Debt issuance costs		(34)		(19)
Total	$	1,986	$	1,889
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(1) - Callable on or after August 15, 2006 at par.
(2) - Callable anytime at the greater of par or the present value of the remaining scheduled
payments of principal and interest.
(3) - Contractual interest rate is based on three month LIBOR plus 11.26%.

Aggregate maturity of debt obligations

In millions	2017		2018		2019		2020		2021		Thereafter		Total
Corporate debt	$	-	$	-	$	-	$	-	$	-	$	574	$	574
Surplus Notes due 2033		-		940		-		-		-		-		940
Total debt obligations due	$	-	$	940	$	-	$	-	$	-	$	574	$	1,514

Principal payments due under investment agreement obligations

	Principal
In millions	Amount
Maturity date:
2017	$	56
2018		17
2019		7
2020		35
2021		3
Thereafter		342
Total expected principal payments (1)	$	460
Less discount and other adjustments (2)		61
Total	$	399
________________
(1)- Amounts reflect principal due at maturity for investment agreements issued at a discount.
(2)- Includes discounts net of carrying amount adjustments of $66 million, net of accrued interest of $5 million.

Principal payments due under medium-term note obligations based on contractual maturity

	Principal
In millions	Amount
Maturity date:
2017	$	36
2018		57
2019		54
2020		-
2021		106
Thereafter		975
Total expected principal payments (1)	$	1,228
Less discount and other adjustments (2)		333
Total	$	895
________________
(1)- Amounts reflect principal due at maturity for notes issued at a discount.
(2)- Includes discounts net of carrying amount adjustments and bifurcated embedded derivatives of $279 million, fair value adjustments of $57 million, net of accrued interest of $3 million.

Maturity of VIE notes, by segment

	Principal
In millions	Amount
Maturity date:
2017	$	220
2018		238
2019		173
2020		124
2021		140
Thereafter		1,346
Total	$	2,241	(1)
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(1) - Includes $1.4 billion of VIE notes accounted for at fair value as of December 31, 2016.