Long-Term Debt and Revolving Promissory Note (Tables)

9 Months Ended

Sep. 30, 2013

Debt Disclosure [Abstract]

Schedule of long-term debt, including unamortized discounts and premiums

Long-term debt, including unamortized discounts and premiums, is as follows:

	Interest Rates	Maturities	September 30, 2013			December 31, 2012
			(Dollars in millions)
Senior notes	6.125% - 8.375%	2014 - 2053	$	7,411		7,386
Capital lease and other obligations	Various	Various	85			112
Unamortized premiums, net			86			127
Total long-term debt			7,582			7,625
Less current maturities			(42		)	(804	)
Long-term debt, excluding current maturities			$	7,540		6,821