Long-Term and Other Debt - Outstanding Debt (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Face Value	$ 8,235.3
Unamortized debt discount	(21.3)
Unamortized deferred financing costs and discount	(139.8)
Total long-term debt outstanding	8,074.2	$ 8,207.0
Less: current portion of long-term debt	(49.3)	(50.3)
Long-term debt, excluding current portion	8,024.9	8,156.7
Debt instrument, fair value	8,221.8
Senior Notes
Debt Instrument [Line Items]
Face Value	$ 3,150.0
Senior Notes \| Senior Secured Notes, maturing 2022
Debt Instrument [Line Items]
Debt Instrument, interest rate, stated percentage	7.00%
Face Value	$ 950.0
Unamortized debt discount	0.0
Unamortized deferred financing costs and discount	(13.7)
Total long-term debt outstanding	$ 936.3	933.6
Senior Notes \| Senior Unsecured Notes, maturing 2022
Debt Instrument [Line Items]
Debt Instrument, interest rate, stated percentage	10.00%
Face Value	$ 2,200.0
Unamortized debt discount	0.0
Unamortized deferred financing costs and discount	(36.0)
Total long-term debt outstanding	2,164.0	2,157.9
Senior Subordinated Notes
Debt Instrument [Line Items]
Face Value	$ 834.1
Senior Subordinated Notes \| Senior Subordinated Notes, maturing 2018
Debt Instrument [Line Items]
Debt Instrument, interest rate, stated percentage	8.125%
Face Value	$ 250.0
Unamortized debt discount	0.0
Unamortized deferred financing costs and discount	(1.3)
Total long-term debt outstanding	$ 248.7	248.0
Senior Subordinated Notes \| Senior Subordinated Notes, maturing 2020
Debt Instrument [Line Items]
Debt Instrument, interest rate, stated percentage	6.25%
Face Value	$ 243.5
Unamortized debt discount	0.0
Unamortized deferred financing costs and discount	(2.3)
Total long-term debt outstanding	$ 241.2	296.4
Senior Subordinated Notes \| Senior Subordinated Notes, maturing 2021
Debt Instrument [Line Items]
Debt Instrument, interest rate, stated percentage	6.625%
Face Value	$ 340.6
Unamortized debt discount	(1.5)
Unamortized deferred financing costs and discount	(4.6)
Total long-term debt outstanding	334.5	342.6
Capital Lease Obligations
Debt Instrument [Line Items]
Face Value	$ 15.2
Capital Lease Obligations \| Capital lease obligations
Debt Instrument [Line Items]
Debt Instrument, interest rate, stated percentage	3.90%
Face Value	$ 15.2
Unamortized debt discount	0.0
Unamortized deferred financing costs and discount	0.0
Total long-term debt outstanding	15.2	25.7
Revolver \| Secured Debt \| Senior Secured Revolver, maturing 2018
Debt Instrument [Line Items]
Face Value	45.0
Unamortized debt discount	0.0
Unamortized deferred financing costs and discount	0.0
Total long-term debt outstanding	45.0	95.0
Term Loan \| Secured Debt \| Senior Secured Term Loan B-1, maturing 2020
Debt Instrument [Line Items]
Face Value	2,231.0
Unamortized debt discount	(6.1)
Unamortized deferred financing costs and discount	(41.4)
Total long-term debt outstanding	2,183.5	2,193.7
Term Loan \| Secured Debt \| Senior Secured Term Loan B-2, maturing 2021
Debt Instrument [Line Items]
Face Value	1,960.0
Unamortized debt discount	(13.7)
Unamortized deferred financing costs and discount	(40.5)
Total long-term debt outstanding	$ 1,905.8	$ 1,914.1

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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-Name Accounting Standards Codification
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