Revenue - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Total
Disaggregation of Revenue [Line Items]
Revenue	$ 2,021	$ 378	$ 4,321	$ 967
Total | Haynesville
Disaggregation of Revenue [Line Items]
Revenue	845	186	1,666	458
Total | Northeast Appalachia
Disaggregation of Revenue [Line Items]
Revenue	643	192	1,543	509
Total | Southwest Appalachia
Disaggregation of Revenue [Line Items]
Revenue	533		1,112
Natural Gas
Disaggregation of Revenue [Line Items]
Revenue	1,759	378	3,774	967
Natural Gas | Haynesville
Disaggregation of Revenue [Line Items]
Revenue	845	186	1,666	458
Natural Gas | Northeast Appalachia
Disaggregation of Revenue [Line Items]
Revenue	643	192	1,543	509
Natural Gas | Southwest Appalachia
Disaggregation of Revenue [Line Items]
Revenue	271		565
Oil
Disaggregation of Revenue [Line Items]
Revenue	86	0	164	0
Oil | Haynesville
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Oil | Northeast Appalachia
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Oil | Southwest Appalachia
Disaggregation of Revenue [Line Items]
Revenue	86		164
NGL
Disaggregation of Revenue [Line Items]
Revenue	176	0	383	0
NGL | Haynesville
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
NGL | Northeast Appalachia
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
NGL | Southwest Appalachia
Disaggregation of Revenue [Line Items]
Revenue	176		383
Marketing
Disaggregation of Revenue [Line Items]
Revenue	788	136	1,698	448
Natural Gas
Disaggregation of Revenue [Line Items]
Revenue	719	136	1,556	333
Oil
Disaggregation of Revenue [Line Items]
Revenue	33	0	67	82
NGL
Disaggregation of Revenue [Line Items]
Revenue	$ 36	$ 0	$ 75	$ 33