Long-Term Debt (Tables)

9 Months Ended

Sep. 30, 2015

Debt Disclosure [Abstract]

Long-Term Debt

We provide detail on our long-term debt balances in the following table as of the end of the 2015third quarter and year-end 2014:

	At Period End
($ in millions)	September 30, 2015			December 31, 2014
Senior Notes:
Series G, interest rate of 5.8%, face amount of $316, maturing November 10, 2015 (effective interest rate of 6.8%)	$	316		$	314
Series H, interest rate of 6.2%, face amount of $289, maturing June 15, 2016 (effective interest rate of 6.3%)	289			289
Series I, interest rate of 6.4%, face amount of $293, maturing June 15, 2017 (effective interest rate of 6.5%)	293			293
Series K, interest rate of 3.0%, face amount of $600, maturing March 1, 2019 (effective interest rate of 4.4%)	597			596
Series L, interest rate of 3.3%, face amount of $350, maturing September 15, 2022 (effective interest rate of 3.4%)	349			349
Series M, interest rate of 3.4%, face amount of $350, maturing October 15, 2020 (effective interest rate of 3.6%)	348			348
Series N, interest rate of 3.1%, face amount of $400, maturing October 15, 2021 (effective interest rate of 3.4%)	398			397
Series O, interest rate of 2.9%, face amount of $450, maturing March 1, 2021 (effective interest rate of 3.1%)	449			—
Series P, interest rate of 3.8%, face amount of $350, maturing October 1, 2025 (effective interest rate of 4.0%)	346			—
Commercial paper, average interest rate of 0.5% at September 30, 2015	803			1,072
$2,000 Credit Facility	—			—
Other	116			123
	4,304			3,781
Less current portion classified in:
Current portion of long-term debt	(615		)	(324		)
	$	3,689		$	3,457

Debt Principal Payments (Net of Unamortized Discounts)

The following table presents future principal payments that are due for our debt as of the end of the 2015third quarter:

Debt Principal Payments ($ in millions)	Amount
2015	$	320
2016	298
2017	302
2018	812
2019	607
Thereafter	1,965
Balance at September 30, 2015	$	4,304