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Derivative and Financial Instruments - Schedule of Net Exposures from Outstanding Commodity Derivative Contracts (Details) - Commodity Contract - Bcf	9 Months Ended	12 Months Ended
	Sep. 30, 2022	Dec. 31, 2021
Natural Gas and Power, Fixed Price | Long
Trading Activity, Gains and Losses, Net [Line Items]
Commodity derivatives - volumetric material net exposures		4
Natural Gas and Power, Fixed Price | Short
Trading Activity, Gains and Losses, Net [Line Items]
Commodity derivatives - volumetric material net exposures	18
Natural Gas and Power, Basis | Short
Trading Activity, Gains and Losses, Net [Line Items]
Commodity derivatives - volumetric material net exposures	2	22

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