v3.26.1
Derivative and Hedging Activities - Schedule of Estimated Fair Values of Our Natural Gas and Oil Derivative Instrument Assets (Liabilities) (Details) - Energy Related Derivative
$ in Millions
3 Months Ended 12 Months Ended
Mar. 31, 2026
USD ($)
MMBbls
Bcf
Dec. 31, 2025
USD ($)
MMBbls
Bcf
Derivative [Line Items]    
Fair Value $ 556 $ 307
Natural gas (Bcf):    
Derivative [Line Items]    
Notional Volume | Bcf 2,723 2,484
Fair Value $ 576 $ 305
Natural gas (Bcf): | Fixed-price instruments    
Derivative [Line Items]    
Notional Volume | Bcf 869 756
Fair Value $ 264 $ 128
Natural gas (Bcf): | Two-way collars    
Derivative [Line Items]    
Notional Volume | Bcf 858 1,143
Fair Value $ 252 $ 212
Natural gas (Bcf): | Three-way collars    
Derivative [Line Items]    
Notional Volume | Bcf 680 175
Fair Value $ 95 $ 32
Natural gas (Bcf): | Call options (sold)    
Derivative [Line Items]    
Notional Volume | Bcf 55 73
Fair Value $ (4) $ (1)
Natural gas (Bcf): | Basis protection instruments    
Derivative [Line Items]    
Notional Volume | Bcf 261 337
Fair Value $ (31) $ (66)
Oil (MMBbls):    
Derivative [Line Items]    
Notional Volume | MMBbls 2 0
Fair Value $ (2) $ 2
Oil (MMBbls): | Two-way collars    
Derivative [Line Items]    
Notional Volume | MMBbls 2 0
Fair Value $ (2) $ 0
Oil (MMBbls): | Three-way collars    
Derivative [Line Items]    
Notional Volume | MMBbls 0 0
Fair Value $ 0 $ 2
NGLs (MMBbls):    
Derivative [Line Items]    
Notional Volume | MMBbls 4 0
Fair Value $ (18) $ 0
NGLs (MMBbls): | Fixed-price instruments    
Derivative [Line Items]    
Notional Volume | MMBbls 4 0
Fair Value $ (18) $ 0