v3.21.2

DERIVATIVE INSTRUMENTS Narrative (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Energy Hedges [Member]
Derivative [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax	$ (90)
Proceeds from Hedge, Investing Activities	9	$ 32
Payments for (Proceeds from) Hedge, Investing Activities	10	$ 0
Interest Rate Swap [Member]
Derivative [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax	4
Derivative, Notional Amount	200
Interest Rate Derivatives, at Fair Value, Net	6
Fair Value, Inputs, Level 2 [Member] \| Energy Hedges [Member]
Derivative [Line Items]
Derivative Liability	79		$ 0
Fair Value, Inputs, Level 2 [Member] \| Interest Rate Swap [Member]
Derivative [Line Items]
Derivative Liability	6		$ 10
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 2 [Member] \| Energy Hedges [Member]
Derivative [Line Items]
Derivative Asset	$ 0

Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

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Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Nominal or face amount used to calculate payment on derivative.

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Fair value as of the balance sheet date of interest rate derivative assets, net of interest rate derivative liabilities, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized on the balance sheet.

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No definition available.

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Amount, after tax and reclassification, of gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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The cash outflow or inflow for a financial contract that meets the hedge criteria as either a cash flow hedge, fair value hedge, or hedge of a net investment in a foreign operation.

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No definition available.

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The cash inflow for a financial contract that meets the hedge criteria as either a cash flow hedge, fair value hedge, or hedge of a net investment in a foreign operation.

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COVANTA HOLDING CORP 10-Q