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Derivative Financial Instruments (Details) - USD ($)	3 Months Ended		6 Months Ended
Derivative Financial Instruments (Details) - USD ($)	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Derivative [Line Items]
Derivative, Notional Amount	$ 3,225,000,000		$ 3,225,000,000
Gain (Loss) on Interest Rate Derivative Instruments Not Designated as Hedging Instruments	(28,000,000)	$ (5,000,000)	(97,900,000)	$ (8,564,000)
Prepaid expenses and other current assets	176,545,000		176,545,000		$ 151,102,000
Other assets	324,453,000		324,453,000		247,519,000
Accrued expenses and other current liabilities	612,921,000		612,921,000		477,366,000
Other liabilities	509,876,000		509,876,000		305,435,000
Interest Rate Derivatives, at Fair Value, Net	313,377,000		313,377,000		84,218,000
Accumulated other comprehensive loss	(145,879,000)		(145,879,000)		(58,376,000)
Interest Rate Swap, June 2018
Derivative [Line Items]
Derivative, Notional Amount	3,000,000,000		3,000,000,000
Interest Rate Swap, June 2018 \| Not Designated as Hedging Instrument
Derivative [Line Items]
Accrued expenses and other current liabilities	64,265,000		64,265,000
Other liabilities	249,112,000		249,112,000
Interest Rate Swap, January 2019 (unhedged) [Member] \| Not Designated as Hedging Instrument
Derivative [Line Items]
Derivative, Notional Amount	125,000,000		125,000,000
Interest Rate Swap, February 2019 (unhedged) [Member] \| Not Designated as Hedging Instrument
Derivative [Line Items]
Derivative, Notional Amount	300,000,000		300,000,000
Interest Rate Swaps, October 2019 [Member] \| Not Designated as Hedging Instrument
Derivative [Line Items]
Derivative, Notional Amount	2,800,000,000		2,800,000,000
Cash Flow Hedging \| Interest Rate Swap, June 2018 \| Designated as Hedging Instrument
Derivative [Line Items]
Accrued expenses and other current liabilities					15,334,000
Other liabilities					68,884,000
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Derivative [Line Items]
Accumulated other comprehensive loss	$ (147,000,000)		$ (147,000,000)		$ (59,000,000)