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v3.21.2

RISK MANAGEMENT AND HEDGING ACTIVITIES USING DERIVATIVES, Part 2 (Details) $ in Millions | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2021 USD ($) MMBbls Bcf | Sep. 30, 2020 USD ($) | Dec. 31, 2020 USD ($) Bcf MMBbls
Derivative [Line Items] |  |  |
Realized Loss on Settled Interest Rate Swaps Recorded in AOCI |  | $ 48.3 |
Notional Amount Of Cash Flow Hedge Instruments Settled |  | $ 1,300.0 |
Derivatives designated as Hedging Instrument | Futures | - Natural gas (Bcf) | Fixed price | Sold/ Receiver |  |  |
Derivative [Line Items] |  |  |
Derivative, Nonmonetary Notional Amount, Volume | Bcf | 38.1 |  | 43.3
Derivatives designated as Hedging Instrument | Futures | - Natural gas (Bcf) | Basis | Sold/ Receiver |  |  |
Derivative [Line Items] |  |  |
Derivative, Nonmonetary Notional Amount, Volume | Bcf | 35.8 |  | 43.3
Derivatives designated as Hedging Instrument | Futures | - Crude oil and NGLs (MMBbl) | Fixed price | Sold/ Receiver |  |  |
Derivative [Line Items] |  |  |
Derivative, Nonmonetary Notional Amount, Volume | MMBbls | 9.1 |  | 4.6
Derivatives designated as Hedging Instrument | Interest Rate Contracts | Purchased/ Payor |  |  |
Derivative [Line Items] |  |  |
Derivative, Notional Amount | $ 1,100.0 |  | $ 1,100.0
Derivatives not designated as hedging instruments | Futures | - Crude oil and NGLs (MMBbl) | Fixed price | Purchased/ Payor |  |  |
Derivative [Line Items] |  |  |
Derivative, Nonmonetary Notional Amount, Volume | MMBbls | 0.2 |  | 0.8
Derivatives not designated as hedging instruments | Futures | - Crude oil and NGLs (MMBbl) | Fixed price | Sold/ Receiver |  |  |
Derivative [Line Items] |  |  |
Derivative, Nonmonetary Notional Amount, Volume | MMBbls | 0.2 |  | 0.8
Forecasted Debt Issuances [Member] | Cash Flow Hedging [Member] | Forward contracts | Interest Rate Contracts |  |  |
Derivative [Line Items] |  |  |
Derivative, Notional Amount | $ 1,100.0 |  | $ 1,100.0

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- Definition Realized Loss resulting from the settlement of interes rate swaps designated as cash flow hedges recorded in accumulated other comprehensive income (loss). + References No definition available. + Details
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- Definition 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. + References No definition available. + Details
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