Fair Value of Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2012

Fair Value Disclosures [Abstract]

Schedule of fair value of liabilities measured on a recurring basis

The table below presents the fair values for each class of Level 3’s liabilities as well as the input levels used to determine these fair values as of March 31, 2012 and December 31, 2011:

					Fair Value Measurement Using
	Total Carrying Value in Consolidated Balance Sheet				Quoted Prices in Active Markets for Identical Assets (Level 1)				Significant Other Observable Inputs (Level 2)
	March 31, 2012		December 31, 2011		March 31, 2012		December 31, 2011		March 31, 2012		December 31, 2011
	(dollars in millions)
Liabilities Recorded at Fair Value in the Financial Statements:
Derivatives:
Interest Rate Swap Liabilities (included in other non-current liabilities)	$	83	$	90	$	—	$	—	$	83	$	90
Total Derivative Liabilities Recorded at Fair Value in the Financial Statements	$	83	$	90	$	—	$	—	$	83	$	90
Liabilities Not Recorded at Fair Value in the Financial Statements:
Long-term Debt, including the current portion:
Term Loans	$	2,568	$	2,567	$	2,591	$	2,518	$	—	$	—
Senior Notes	4,807		4,716		5,134		4,822		—		—
Convertible Notes	842		939		329		247		969		834
Commercial Mortgage	64		65		—		—		73		73
Capital Leases and Other	145		163		—		—		145		163
Total Long-term Debt, including the current portion:	$	8,426	$	8,450	$	8,054	$	7,587	$	1,187	$	1,070