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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Face (par) amount of debt instrument at time of issuance.

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Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of unamortized debt discount (premium) and debt issuance costs.

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Represents the quantification of the effect of changes in the valuation technique and related inputs, during the period, used to measure the liability at fair value as of the statement of financial position reporting date.

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For a debtor, the aggregate gain (loss) recognized on the restructuring of payables arises from the difference between the book value of the debt before the restructuring and the fair value of the payments on the debt after restructuring is complete.

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Amount of long-term debt and capital lease obligation due after one year or beyond the normal operating cycle, if longer.

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Amount of long-term debt and capital leases due within one year or the normal operating cycle, if longer.

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Amount of long-term debt and capital lease obligations including current maturities.

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Long-Term and Other Debt - Schedule of Outstanding Debt (Details)	3 Months Ended	9 Months Ended
	Sep. 30, 2018 USD ($)	Sep. 30, 2018 USD ($)	Feb. 28, 2018 USD ($)	Feb. 14, 2018 USD ($)	Feb. 14, 2018 EUR (€)	Dec. 31, 2017 USD ($)	Oct. 30, 2017 USD ($)
Debt Instrument
Face value	$ 8,915,000,000	$ 8,915,000,000
Unamortized debt discount/premium and deferred financing costs, net	(133,200,000)	(133,200,000)
Total long-term debt outstanding	8,781,800,000	8,781,800,000				$ 8,776,600,000
Less: current portion of long-term debt	(46,800,000)	(46,800,000)				(40,300,000)
Long-term debt, excluding current portion	8,735,000,000	8,735,000,000				8,736,300,000
Fair value of debt	8,935,000,000	8,935,000,000
Gain (loss) on remeasurement of debt	$ (4,000,000)	29,400,000
Term Loan B-5
Debt Instrument
Principal debt amount				$ 900,000,000.0
2025 Secured Notes
Debt Instrument
Debt interest rate			(2.946%)
Principal debt amount				$ 900,000,000			$ 350,000,000
2026 Secured Euro Notes
Debt Instrument
Principal debt amount \| €					€ 325,000,000.0
2026 Unsecured Euro Notes
Debt Instrument
Principal debt amount \| €					€ 250,000,000.0
Senior Secured and Unsecured Notes, Maturing 2026
Debt Instrument
Reduction of debt due to change in foreign currency exchange rate		$ 36,100,000
Senior Notes \| 2022 Secured Notes
Debt Instrument
Debt interest rate	(7.00%)	(7.00%)
Face value	$ 0	$ 0
Unamortized debt discount/premium and deferred financing costs, net	0	0
Total long-term debt outstanding	$ 0	$ 0				2,130,700,000
Senior Notes \| 2025 Secured Notes
Debt Instrument
Debt interest rate	(5.00%)	(5.00%)	(2.946%)
Face value	$ 1,250,000,000	$ 1,250,000,000
Unamortized debt discount/premium and deferred financing costs, net	(18,000,000)	(18,000,000)
Total long-term debt outstanding	$ 1,232,000,000	$ 1,232,000,000				343,700,000
Principal debt amount			$ 460,000,000.0
Senior Notes \| 2026 Secured Euro Notes
Debt Instrument
Debt interest rate	(3.375%)	(3.375%)
Face value	$ 382,200,000	$ 382,200,000
Unamortized debt discount/premium and deferred financing costs, net	(5,500,000)	(5,500,000)
Total long-term debt outstanding	$ 376,700,000	$ 376,700,000				0
Senior Notes \| Unsecured Notes
Debt Instrument
Debt interest rate	(10.00%)	(10.00%)
Face value	$ 2,200,000,000	$ 2,200,000,000
Unamortized debt discount/premium and deferred financing costs, net	(25,400,000)	(25,400,000)
Total long-term debt outstanding	$ 2,174,600,000	$ 2,174,600,000				2,170,100,000
Senior Notes \| 2026 Unsecured Euro Notes
Debt Instrument
Debt interest rate	(5.50%)	(5.50%)
Face value	$ 294,000,000	$ 294,000,000
Unamortized debt discount/premium and deferred financing costs, net	(4,300,000)	(4,300,000)
Total long-term debt outstanding	$ 289,700,000	$ 289,700,000				0
Subordinated Notes \| 2020 Notes
Debt Instrument
Debt interest rate	(6.25%)	(6.25%)
Face value	$ 243,500,000	$ 243,500,000
Unamortized debt discount/premium and deferred financing costs, net	(1,200,000)	(1,200,000)
Total long-term debt outstanding	$ 242,300,000	$ 242,300,000				241,800,000
Subordinated Notes \| 2021 Notes
Debt Instrument
Debt interest rate	(6.625%)	(6.625%)
Face value	$ 340,600,000	$ 340,600,000
Unamortized debt discount/premium and deferred financing costs, net	(3,600,000)	(3,600,000)
Total long-term debt outstanding	$ 337,000,000	$ 337,000,000				336,000,000
Capital Lease Obligations \| Capital lease obligations as of September 30, 2018 payable monthly through 2019
Debt Instrument
Debt interest rate	(3.90%)	(3.90%)
Face value	$ 6,000,000	$ 6,000,000
Unamortized debt discount/premium and deferred financing costs, net	0	0
Total long-term debt outstanding	6,000,000	6,000,000				10,700,000
Revolving Credit Facility \| Senior Secured Credit Facilities \| 2018 Revolver, varying interest rate
Debt Instrument
Face value	12,200,000	12,200,000
Unamortized debt discount/premium and deferred financing costs, net	0	0
Total long-term debt outstanding	12,200,000	12,200,000				100,500,000
Revolving Credit Facility \| Senior Secured Credit Facilities \| 2020 Revolver, varying interest rate
Debt Instrument
Face value	32,800,000	32,800,000
Unamortized debt discount/premium and deferred financing costs, net	0	0
Total long-term debt outstanding	32,800,000	32,800,000				249,500,000
Term Loan Facility \| Senior Secured Credit Facilities \| Term Loan B-4
Debt Instrument
Face value	0	0
Unamortized debt discount/premium and deferred financing costs, net	0	0
Total long-term debt outstanding	0	0				3,193,600,000
Term Loan Facility \| Senior Secured Credit Facilities \| Term Loan B-5
Debt Instrument
Face value	4,153,700,000	4,153,700,000
Unamortized debt discount/premium and deferred financing costs, net	(75,200,000)	(75,200,000)
Total long-term debt outstanding	$ 4,078,500,000	$ 4,078,500,000				$ 0