Debt Facilities - Senior Notes (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Jan. 02, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Long term debt, gross	$ 1,546,283		$ 1,370,118
Total long term debt	10,174,097
Senior Notes
Debt Instrument [Line Items]
Long term debt, gross	8,626,100		9,029,211
Less amount representing unamortized debt issuance cost	(73,075)		(78,030)
Add amount representing unamortized debt premium	1,121		1,716
Total long term debt	8,554,146		8,952,897
Less current portion	(300,401)		(643,224)
Total	8,253,745		8,309,673
Senior Notes \| 5.000% Infomart Senior Notes
Debt Instrument [Line Items]
Long term debt, gross	$ 450,000		$ 450,000
Effective interest rate	4.46%		4.46%
Interest rate (percent)	5.00%
Senior Notes \| 5.375% Senior Notes due 2022
Debt Instrument [Line Items]
Long term debt, gross	$ 0		$ 343,711
Effective interest rate	0.00%		5.56%
Interest rate (percent)	5.375%	5.375%
Senior Notes \| 2.625% Senior Notes due 2024
Debt Instrument [Line Items]
Long term debt, gross	$ 1,000,000		$ 1,000,000
Effective interest rate	2.79%		2.79%
Interest rate (percent)	2.625%
Senior Notes \| 2.875% Euro Senior Notes due 2024
Debt Instrument [Line Items]
Long term debt, gross	$ 825,300		$ 841,500
Effective interest rate	3.08%		3.08%
Interest rate (percent)	2.875%
Senior Notes \| 2.875% Euro Senior Notes due 2025
Debt Instrument [Line Items]
Long term debt, gross	$ 1,100,400		$ 1,122,000
Effective interest rate	3.04%		3.04%
Interest rate (percent)	2.875%
Senior Notes \| 2.900% Senior Notes due 2026
Debt Instrument [Line Items]
Long term debt, gross	$ 600,000		$ 600,000
Effective interest rate	3.04%		3.04%
Interest rate (percent)	2.90%
Senior Notes \| 5.875% Senior Notes due 2026
Debt Instrument [Line Items]
Long term debt, gross	$ 1,100,000		$ 1,100,000
Effective interest rate	6.03%		6.03%
Interest rate (percent)	5.875%
Senior Notes \| 2.875% Euro Senior Notes due 2026
Debt Instrument [Line Items]
Long term debt, gross	$ 1,100,400		$ 1,122,000
Effective interest rate	3.04%		3.04%
Interest rate (percent)	2.875%
Senior Notes \| 5.375% Senior Notes due 2027
Debt Instrument [Line Items]
Long term debt, gross	$ 1,250,000		$ 1,250,000
Effective interest rate	5.51%		5.51%
Interest rate (percent)	5.375%
Senior Notes \| 3.200% Senior Notes due 2029
Debt Instrument [Line Items]
Long term debt, gross	$ 1,200,000		$ 1,200,000
Effective interest rate	3.30%		3.30%
Interest rate (percent)	3.20%

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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