v3.26.1
Derivative and Financial Instruments - Schedule of Net Exposures from Outstanding Commodity Derivative Contracts (Details) - Short - Commodity Contract - Bcf
3 Months Ended 9 Months Ended
Mar. 31, 2026
Sep. 30, 2025
Natural Gas and Power, Fixed Price    
Trading Activity, Gains and Losses, Net [Line Items]    
Commodity derivatives - volumetric material net exposures (20) (15)
Natural Gas and Power, Basis    
Trading Activity, Gains and Losses, Net [Line Items]    
Commodity derivatives - volumetric material net exposures (15) (17)