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, 2025 USD ($) Bcf MMBbls	Dec. 31, 2024 USD ($) MMBbls Bcf
Derivative [Line Items]
Fair Value	$ (1,023)	$ (54)
Natural gas (Bcf):
Derivative [Line Items]
Notional Volume | Bcf	2,486	2,199
Fair Value	$ (1,011)	$ (49)
Natural gas (Bcf): | Fixed-price swaps
Derivative [Line Items]
Notional Volume | Bcf	391	369
Fair Value	$ (279)	$ (28)
Natural gas (Bcf): | Collars
Derivative [Line Items]
Notional Volume | Bcf	1,499	1,098
Fair Value	$ (695)	$ (27)
Natural gas (Bcf): | Three-way collars
Derivative [Line Items]
Notional Volume | Bcf	121	161
Fair Value	$ (9)	$ 60
Natural gas (Bcf): | Call Option | Long
Derivative [Line Items]
Notional Volume | Bcf	55	73
Fair Value	$ 7	$ 1
Natural gas (Bcf): | Call Option | Short
Derivative [Line Items]
Notional Volume | Bcf	183	219
Fair Value	$ (49)	$ (16)
Natural gas (Bcf): | Basis protection swaps
Derivative [Line Items]
Notional Volume | Bcf	237	279
Fair Value	$ 14	$ (39)
Oil (MMBbls):
Derivative [Line Items]
Notional Volume | MMBbls	1	2
Fair Value	$ 4	$ 4
Oil (MMBbls): | Three-way collars
Derivative [Line Items]
Notional Volume | MMBbls	1	2
Fair Value	$ 4	$ 4
NGLs (MMBbls):
Derivative [Line Items]
Notional Volume | MMBbls	5	7
Fair Value	$ (16)	$ (9)
NGLs (MMBbls): | Fixed-price swaps
Derivative [Line Items]
Notional Volume | MMBbls	5	7
Fair Value	$ (16)	$ (9)