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RISK-MANAGEMENT AND HEDGING ACTIVITIES USING DERIVATIVES - Schedule of Notional Quantities for Derivative Instruments (Details) - Futures and Swaps | 9 Months Ended | 12 Months Ended
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Sep. 30, 2025 Bcf MMBbls | Dec. 31, 2024 MMBbls Bcf
- Natural gas (Bcf) | Sold / Receiver | Fixed price | Derivatives designated as hedging instruments: |  |
Derivative [Line Items] |  |
Derivative, nonmonetary notional amount, volume | 17.2 | 12.2
- Natural gas (Bcf) | Sold / Receiver | Fixed price | Derivatives not designated as hedging instruments: |  |
Derivative [Line Items] |  |
Derivative, nonmonetary notional amount, volume |  | 8.0
- Natural gas (Bcf) | Sold / Receiver | Basis | Derivatives designated as hedging instruments: |  |
Derivative [Line Items] |  |
Derivative, nonmonetary notional amount, volume | 10.0 | 11.2
- Natural gas (Bcf) | Sold / Receiver | Basis | Derivatives not designated as hedging instruments: |  |
Derivative [Line Items] |  |
Derivative, nonmonetary notional amount, volume |  | 3.7
- Natural gas (Bcf) | Sold / Receiver | Swing Swaps | Derivatives not designated as hedging instruments: |  |
Derivative [Line Items] |  |
Derivative, nonmonetary notional amount, volume | 0.7 | 0.2
- Natural gas (Bcf) | Purchased / Payor | Fixed price | Derivatives not designated as hedging instruments: |  |
Derivative [Line Items] |  |
Derivative, nonmonetary notional amount, volume | 1.2 |
- Natural gas (Bcf) | Purchased / Payor | Basis | Derivatives not designated as hedging instruments: |  |
Derivative [Line Items] |  |
Derivative, nonmonetary notional amount, volume | 4.6 |
- NGLs, Refined Products and crude oil (MMBbl) | Sold / Receiver | Fixed price | Derivatives designated as hedging instruments: |  |
Derivative [Line Items] |  |
Derivative, nonmonetary notional amount, volume | MMBbls | 20.8 | 12.2
- NGLs, Refined Products and crude oil (MMBbl) | Sold / Receiver | Fixed price | Derivatives not designated as hedging instruments: |  |
Derivative [Line Items] |  |
Derivative, nonmonetary notional amount, volume | MMBbls | 1.3 | 2.7
- NGLs, Refined Products and crude oil (MMBbl) | Sold / Receiver | Basis | Derivatives not designated as hedging instruments: |  |
Derivative [Line Items] |  |
Derivative, nonmonetary notional amount, volume | MMBbls | 0.5 | 0.2

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