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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Long-Term and Other Debt - Schedule of Outstanding Debt (Details)	3 Months Ended	6 Months Ended
	Jun. 30, 2018 USD ($)	Jun. 30, 2018 USD ($)	Feb. 28, 2018 USD ($)	Feb. 14, 2018 USD ($)	Feb. 14, 2018 EUR (€)	Dec. 31, 2017 USD ($)	Oct. 30, 2017 USD ($)
Debt Instrument
Face value	$ 9,032,400,000	$ 9,032,400,000
Unamortized debt discount/premium and deferred financing costs, net	(138,500,000)	(138,500,000)
Debt Issuance Costs, Net				$ (25,800,000)
Total long-term debt outstanding	8,893,900,000	8,893,900,000				$ 8,776,600,000
Less: current portion of long-term debt	(48,700,000)	(48,700,000)				(40,300,000)
Long-term debt, excluding current portion	8,845,200,000	8,845,200,000				8,736,300,000
Fair value of debt	9,095,800,000	9,095,800,000
Gain on remeasurement of debt	$ 34,500,000	$ 33,400,000
Term Loan B-5
Debt Instrument
Principal debt amount				900,000,000.0
2025 Secured Notes
Debt Instrument
Principal debt amount				$ 900,000,000			$ 350,000,000
Debt interest rate			2.946%
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
Capital lease obligations, 3.9% as of June 30, 2018 payable monthly through 2019
Debt Instrument
Debt interest rate	3.90%	3.90%
Senior Secured and Unsecured Notes, Maturing 2026
Debt Instrument
Reduction of debt due to change in foreign currency exchange rate		$ 41,200,000
Senior Notes \| 2022 Secured Notes
Debt Instrument
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
Debt interest rate	7.00%	7.00%
Senior Notes \| 2025 Secured Notes
Debt Instrument
Face value	$ 1,250,000,000	$ 1,250,000,000
Unamortized debt discount/premium and deferred financing costs, net	(18,400,000)	(18,400,000)
Total long-term debt outstanding	$ 1,231,600,000	$ 1,231,600,000				343,700,000
Principal debt amount			$ 460,000,000.0
Debt interest rate	5.00%	5.00%	2.946%
Senior Notes \| 2026 Secured Euro Notes
Debt Instrument
Face value	$ 379,400,000	$ 379,400,000
Unamortized debt discount/premium and deferred financing costs, net	(5,500,000)	(5,500,000)
Total long-term debt outstanding	$ 373,900,000	$ 373,900,000				0
Debt interest rate	3.375%	3.375%
Senior Notes \| Unsecured Notes
Debt Instrument
Face value	$ 2,200,000,000	$ 2,200,000,000
Unamortized debt discount/premium and deferred financing costs, net	(26,900,000)	(26,900,000)
Total long-term debt outstanding	$ 2,173,100,000	$ 2,173,100,000				2,170,100,000
Debt interest rate	10.00%	10.00%
Senior Notes \| 2026 Unsecured Euro Notes
Debt Instrument
Face value	$ 291,900,000	$ 291,900,000
Unamortized debt discount/premium and deferred financing costs, net	(4,300,000)	(4,300,000)
Total long-term debt outstanding	$ 287,600,000	$ 287,600,000				0
Debt interest rate	5.50%	5.50%
Subordinated Notes \| 2020 Notes
Debt Instrument
Face value	$ 243,500,000	$ 243,500,000
Unamortized debt discount/premium and deferred financing costs, net	(1,300,000)	(1,300,000)
Total long-term debt outstanding	$ 242,200,000	$ 242,200,000				241,800,000
Debt interest rate	6.25%	6.25%
Subordinated Notes \| 2021 Notes
Debt Instrument
Face value	$ 340,600,000	$ 340,600,000
Unamortized debt discount/premium and deferred financing costs, net	(4,000,000)	(4,000,000)
Total long-term debt outstanding	$ 336,600,000	$ 336,600,000				336,000,000
Debt interest rate	6.625%	6.625%
Capital Lease Obligations \| Capital lease obligations, 3.9% as of June 30, 2018 payable monthly through 2019
Debt Instrument
Face value	$ 7,900,000	$ 7,900,000
Unamortized debt discount/premium and deferred financing costs, net	0	0
Total long-term debt outstanding	$ 7,900,000	$ 7,900,000				10,700,000
Debt interest rate	3.90%	3.90%
Revolving Credit Facility \| Senior Secured Credit Facilities \| 2018 Revolver, varying interest rate
Debt Instrument
Face value	$ 42,000,000	$ 42,000,000
Unamortized debt discount/premium and deferred financing costs, net	0	0
Total long-term debt outstanding	42,000,000	42,000,000				100,500,000
Revolving Credit Facility \| Senior Secured Credit Facilities \| 2020 Revolver, varying interest rate
Debt Instrument
Face value	113,000,000	113,000,000
Unamortized debt discount/premium and deferred financing costs, net	0	0
Total long-term debt outstanding	113,000,000	113,000,000				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	4,164,100,000	4,164,100,000
Unamortized debt discount/premium and deferred financing costs, net	(78,100,000)	(78,100,000)
Total long-term debt outstanding	$ 4,086,000,000	$ 4,086,000,000				$ 0