The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

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Fixed interest rate related to the interest rate derivative.

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Number of interest rate derivative instruments held by the entity at the reporting date.

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Derivative Financial Instruments - Additional Information (Details) - Interest Rate Swap $ in Millions	12 Months Ended
	Dec. 31, 2019 USD ($)	Jun. 30, 2019 USD ($) derivative_agreement	Feb. 28, 2019 USD ($) derivative_agreement
Derivative [Line Items]
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months	$ (22)
Designated as Hedging Instrument
Derivative [Line Items]
Number of Interest Rate Derivatives Held \| derivative_agreement		6	5
Cash Flow Hedging \| Designated as Hedging Instrument
Derivative [Line Items]
Derivative, notional amount		$ 1,500	$ 2,500
Derivative, Fixed Interest Rate		1.58%	2.48%
One Counterparty \| Cash Flow Hedging \| Designated as Hedging Instrument
Derivative [Line Items]
Derivative, notional amount			$ 700
Three Counterparties \| Cash Flow Hedging \| Designated as Hedging Instrument
Derivative [Line Items]
Derivative, notional amount			$ 450
Six Counterparties \| Cash Flow Hedging \| Designated as Hedging Instrument
Derivative [Line Items]
Derivative, notional amount		$ 250