Long-Term Debt - Schedule of Long Term Debt (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2013		Dec. 31, 2012
Long-term debt
Total Debt Obligations	$ 8,598.0		$ 8,780.0
Total Unamortized Discount	(40)		(48)
Carrying Value of Debt	8,558		8,732
Less current portion	(21)		(216)
Long-Term Debt, less current portion	8,537		8,516
Senior Secured Term Loan
Long-term debt
Total Debt Obligations	2,611.0	[1]	2,614.0	[1]
Total Unamortized Discount	(7)		(11)
Tranche B-II 2019 Term Loan
Long-term debt
Stated interest rate (as a percent)	4.75%		4.75%
Total Debt Obligations	1,200.0		1,200.0
Tranche B-III 2019 Term Loan
Long-term debt
Stated interest rate (as a percent)	4.00%
Total Debt Obligations	815.0
Tranche B 2020 Term Loan
Long-term debt
Stated interest rate (as a percent)	4.00%
Total Debt Obligations	595.5
Tranche B 2016 Term Loan
Long-term debt
Stated interest rate (as a percent)			4.75%
Total Debt Obligations			599.0
Tranche B 2019 Term Loan
Long-term debt
Stated interest rate (as a percent)			5.25%
Total Debt Obligations			815.0
Floating Rate Senior Notes due 2015 (4.146% as of September 30, 2013 and 4.469% as of December 31, 2012)
Long-term debt
Stated interest rate (as a percent)	4.146%		4.469%
Total Debt Obligations	300.0		300.0
10% Senior Notes due 2018
Long-term debt
Stated interest rate (as a percent)	10.00%		10.00%
Total Debt Obligations	640.0		640.0
Total Unamortized Discount	(8)		(10)
11.875% Senior Notes due 2019
Long-term debt
Stated interest rate (as a percent)	11.875%		11.875%
Total Debt Obligations	605.0		605.0
Total Unamortized Discount	(9)		(9)
9.375% Senior Notes due 2019
Long-term debt
Stated interest rate (as a percent)	9.375%		9.375%
Total Debt Obligations	500.0		500.0
Total Unamortized Discount	(8)		(8)
8.125% Senior Notes due 2019
Long-term debt
Stated interest rate (as a percent)	8.125%		8.125%
Total Debt Obligations	1,200.0		1,200.0
Total Unamortized Discount	(7)		(8)
8.875% Senior Notes due 2019
Long-term debt
Stated interest rate (as a percent)	8.875%		8.875%
Total Debt Obligations	300.0		300.0
8.625% Senior Notes due 2020
Long-term debt
Stated interest rate (as a percent)	8.625%		8.625%
Total Debt Obligations	900.0		900.0
7.0% Senior Notes due 2020
Long-term debt
Stated interest rate (as a percent)	7.00%		7.00%
Total Debt Obligations	775.0		775.0
15.0% Convertible Senior Notes due 2013
Long-term debt
Stated interest rate (as a percent)	15.00%		15.00%
Total Debt Obligations	0		172.0
7.0% Convertible Senior Notes due 2015
Long-term debt
Stated interest rate (as a percent)	7.00%		7.00%
Total Debt Obligations	200.0		200.0
Total Unamortized Discount	(1)		(2)
7.0% Convertible Senior Notes due 2015 Series B
Long-term debt
Stated interest rate (as a percent)	7.00%		7.00%
Total Debt Obligations	275.0		275.0
6.5% Convertible Senior Notes due 2016
Long-term debt
Stated interest rate (as a percent)	6.50%		6.50%
Total Debt Obligations	201.0		201.0
Capital Leases
Long-term debt
Total Debt Obligations	78.0		86.0
Other
Long-term debt
Total Debt Obligations	$ 13.0		$ 12.0

[1] * The $1.2 billion Tranche B-II 2019 Term Loan due 2019, the $815 million Tranche B-III 2019 Term Loan due 2019 and the $595.5 million Tranche B 2020 Term Loan due 2020 had interest rates of 4.75%, 4.00% and 4.00%, respectively, as of September 30, 2013. The $599 million Tranche B 2016 Term Loan due 2016, the $815 million Tranche B 2019 Term Loan due 2019 and the $1.2 billion Tranche B-II 2019 Term Loan due 2019 had interest rates of 4.75%, 5.25% and 4.75%, respectively, as of December 31, 2012.