Long-Term Debt Debt Balances and Interest Rates (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012		Feb. 17, 2012	Dec. 31, 2011
Debt Instrument [Line Items]
Debt, long-term and short-term	$ 3,766.0
Debt, total long-term and short-term	3,771.0			4,066.0
Current maturities of long-term debt	(40.0)			(201.0)
Debt	3,731.0			3,865.0
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Long-term Debt, Weighted Average Interest Rate	0.00%	[1]
Debt, long-term and short-term	0			0
Term Loan [Member]
Debt Instrument [Line Items]
Long-term Debt, Weighted Average Interest Rate	3.90%	[1]
Debt, long-term and short-term	1,339.5			1,540.5
Senior secured notes due 2018 [Member]
Debt Instrument [Line Items]
Long-term Debt, Weighted Average Interest Rate	8.00%	[1]
Debt, long-term and short-term	500.0			500.0
Senior notes due 2019 [Member]
Debt Instrument [Line Items]
Long-term Debt, Weighted Average Interest Rate	8.50%	[1]
Debt, long-term and short-term	1,305.0			1,175.0
Premium, Unamortized	5.0		5.7	0
Subordinated Debt [Member]
Debt Instrument [Line Items]
Long-term Debt, Weighted Average Interest Rate	12.535%	[1]
Debt, long-term and short-term	621.5			721.5
Senior notes due 2015 [Member]
Debt Instrument [Line Items]
Long-term Debt, Weighted Average Interest Rate	0.00%	[1]
Debt, long-term and short-term	$ 0			$ 129.0

[1] Weighted-average interest rate as of December 31, 2012.