Long-Term Debt (Tables)

12 Months Ended

Dec. 31, 2012

Debt Disclosure [Abstract]

Long-term debt

Long-term debt consists of the following:

$ in millions			December 31
			2012		2011
Fixed-rate notes and debentures, maturing in	Interest rate
2014	3.70	%		$ 350		$ 350
2015	1.85	%	500		500
2016	7.75	%	107		107
2018	6.75	%	200		200
2019	5.05	%	500		500
2021	3.50	%	700		700
2026	7.81	%	527		527
2031	7.75	%	466		466
2040	5.05	%	300		300
Capital leases	Various		32		37
Other	Various		253		253
Total long-term debt			3,935		3,940
Less current portion			5		5
Long-term debt, net of current portion				$3,930		$3,935

Long-term debt maturities

Maturities of long-term debt as of December 31, 2012, are as follows:

$ in millions
Year Ending December 31
2013		$ 5
2014	353
2015	502
2016	110
2017	3
Thereafter	2,951
Total principal payments	3,924
Unamortized premium on long-term debt, net of discount	11
Total long-term debt		$3,935