Debt (Tables)

9 Months Ended

Sep. 30, 2011

Debt Disclosure [Abstract]

Summary of Outstanding Debt

The following summarizes debt outstanding:

	September 30, 2011								December 31, 2010
	Carrying Value			Fair Value (1)		Interest Rate (2)			Carrying Value			Fair Value (1)		Interest Rate (2)
	(in millions, except percentages)
Credit facility	$	65		$	65		2.92	%	$	-		$	-		-
11.75% senior notes due 2017		41			47		12.73	%		250			288		12.73	%
9.875% senior notes due 2018		16			18		10.25	%		256			279		10.25	%
6.50% senior notes due 2019		750			687		6.62	%		-			-		-
8.625% senior notes due 2020		1,300			1,334		9.00	%		1,300			1,396		9.00	%
7.75% senior notes due 2021		1,000			996		8.00	%		1,000			1,021		8.00	%
Less current maturities		-			-					-			-
		3,172		$	3,147					2,806		$	2,984
Unamortized discount		(53	)							(63	)
Total debt, net of discount	$	3,119							$	2,743

(1) The carrying value of the Credit Facility is estimated to be substantially the same as its fair value.  Fair values of the senior notes were estimated based on prices quoted from third-party financial institutions.

(2) Represents variable interest rate for the Credit Facility and effective interest rates for the senior notes.