Long-Term Debt and Revolving Promissory Note (Tables)

12 Months Ended

Dec. 31, 2013

Debt Disclosure [Abstract]

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

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

			Successor
	Interest Rates	Maturities	December 31, 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	72			112
Unamortized premiums, net			75			127
Total long-term debt			7,558			7,625
Less current maturities			(637		)	(804	)
Long-term debt, excluding current maturities			$	6,921		6,821
Note payable-affiliate	6.765%	2022	$	754		701

Schedule of aggregate maturities of the entity's long-term debt (excluding unamortized premiums, discounts, and other)

Aggregate maturities of our long-term debt (excluding unamortized premiums, discounts, and other and excluding note payable-affiliate):

	(Dollars in millions)
2014	$	637
2015	122
2016	237
2017	500
2018	—
2019 and thereafter	5,987
Total long-term debt	$	7,483

Schedule of amount of gross interest expense, net of capitalized interest and interest expense (income)-affiliates

The following table presents the amount of gross interest expense, net of capitalized interest and interest expense (income)-affiliates:

	Successor							Predecessor
	Year   Ended   December 31,   2013			Year   Ended   December 31,   2012		Nine Months   Ended   December 31,    2011		Three Months    Ended    March 31,    2011
	(Dollars in millions)
Interest expense:
Gross interest expense	$	467		461		305		153
Capitalized interest	(17		)	(18	)	(5	)	(3	)
Total interest expense	$	450		443		300		150
Interest expense (income)-affiliates	$	64		24		(1	)	—