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Commitments and Contingencies (Narrative) (Details)
Jun. 12, 2018
company
individual
Dec. 31, 2022
USD ($)
lease
Sep. 01, 2021
USD ($)
Commitments And Contingencies [Line Items]      
Obligation under transportation agreements   $ 10,414,000,000  
Guarantee obligations relative to the firms transportation agreements and gathering project and services   929,000,000  
Maturities of operating leases (ASC 842):      
2023   53,000,000  
2024   41,000,000  
2025   35,000,000  
2026   31,000,000  
2027   27,000,000  
Thereafter   20,000,000  
Number of plaintiffs | individual 51    
Number of defendants | company 15    
Indemnification liability   0  
Pending regulatory approval and/or construction      
Commitments And Contingencies [Line Items]      
Obligation under transportation agreements   1,326,000,000  
Indigo Agreement      
Commitments And Contingencies [Line Items]      
Obligation under transportation agreements   30,000,000 $ 34,000,000
Liability for the estimated future payments   16,000,000 17,000,000
Purchase or volume commitments with gathering fresh water      
Commitments And Contingencies [Line Items]      
Obligation under transportation agreements   26,000,000 $ 81,000,000
Pressure Pumping Equipment | Exploration and Production      
Commitments And Contingencies [Line Items]      
Aggregate annual lease payment   9,000,000  
Drilling Rigs | Exploration and Production      
Commitments And Contingencies [Line Items]      
Aggregate annual lease payment   $ 12,000,000  
Number of leases | lease   7  
Office Space, Vehicles And Equipment      
Maturities of operating leases (ASC 842):      
2023   $ 40,000,000  
2024   35,000,000  
2025   32,000,000  
2026   29,000,000  
2027   25,000,000  
Thereafter   18,000,000  
Compression Rentals      
Maturities of operating leases (ASC 842):      
2023   20,000,000  
2024   10,000,000  
2025   2,000,000  
2026   $ 1,000,000