Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

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Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Amount of noncurrent assets classified as other.

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-Name Accounting Standards Codification
-Topic 210
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Derivative Financial Instruments (Details) - USD ($)	Jun. 30, 2019	Jan. 31, 2019	Jan. 01, 2019	Dec. 31, 2018
Derivative [Line Items]
Prepaid expenses and other current assets	$ 127,630,000		$ 128,926,000
Other assets	249,039,000		245,449,000
Accrued expenses and other current liabilities	445,913,000		427,539,000	$ 398,079,000
Other liabilities	297,874,000		$ 234,771,000
Derivative, notional amount	4,225,000,000	$ 725,000,000
Interest Rate Cash Flow Hedge Liability at Fair Value	94,940			20,268
Interest Rate Swap, April 2017 \| Not Designated as Hedging Instrument
Derivative [Line Items]
Derivative, notional amount	1,000,000,000
Cash Flow Hedging \| Interest Rate Swap, June 2018 \| Designated as Hedging Instrument
Derivative [Line Items]
Prepaid expenses and other current assets	0			6,525
Other assets	0			1,236
Accrued expenses and other current liabilities	21,117			1,989
Other liabilities	73,823			$ 26,040
Derivative, notional amount	1,500,000,000
Cash Flow Hedging \| Interest Rate Swap, August 2018 \| Designated as Hedging Instrument
Derivative [Line Items]
Derivative, notional amount	1,000,000,000
Cash Flow Hedging \| Interest Rate Swap Three [Member] \| Designated as Hedging Instrument
Derivative [Line Items]
Derivative, notional amount	425,000,000
Cash Flow Hedging \| Interest Rate Swap, February 2019 \| Designated as Hedging Instrument
Derivative [Line Items]
Derivative, notional amount	$ 300,000,000