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Derivatives - Commodity Related Derivatives (Details) - Not Designated as Hedging Instrument [Member]
Dec. 31, 2021
Boe
MMBTU
Natural Gas Liquids | West [Member]  
Derivative Instruments and Hedging Activities Disclosures [Line Items]  
Derivative Nonmonetary Notional Amount Net Long Short Position Volume | Boe 302,000
Natural Gas Liquids | West [Member] | Basis Swap  
Derivative Instruments and Hedging Activities Disclosures [Line Items]  
Derivative Nonmonetary Notional Amount Net Long Short Position Volume | Boe (19,649,000)
Public Utilities, Inventory, Natural Gas | West [Member]  
Derivative Instruments and Hedging Activities Disclosures [Line Items]  
Derivative Nonmonetary Notional Amount Net Long Short Position Volume (22,375,500)
Public Utilities, Inventory, Natural Gas | West [Member] | Basis Swap  
Derivative Instruments and Hedging Activities Disclosures [Line Items]  
Derivative Nonmonetary Notional Amount Net Long Short Position Volume (33,050,500)
Public Utilities, Inventory, Natural Gas | Sequent  
Derivative Instruments and Hedging Activities Disclosures [Line Items]  
Derivative Nonmonetary Notional Amount Net Long Short Position Volume 623,763,087 [1]
Public Utilities, Inventory, Natural Gas | Sequent | Long  
Derivative Instruments and Hedging Activities Disclosures [Line Items]  
Derivative Nonmonetary Notional Amount Net Long Short Position Volume 4,000,000,000
Public Utilities, Inventory, Natural Gas | Sequent | Short  
Derivative Instruments and Hedging Activities Disclosures [Line Items]  
Derivative Nonmonetary Notional Amount Net Long Short Position Volume (3,400,000,000)
[1] Derivative instruments include both long and short natural gas positions. The volume represents the net of long natural gas positions of 4.0 billion MMBtu (million British thermal units) and short natural gas positions of 3.4 billion MMBtu