Revenue - Disaggregated Revenue (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Total
Disaggregation of Revenue [Line Items]
Revenue	$ 2,300	$ 589
Total | Haynesville
Disaggregation of Revenue [Line Items]
Revenue	821	272
Total | Northeast Appalachia
Disaggregation of Revenue [Line Items]
Revenue	900	317
Total | Southwest Appalachia
Disaggregation of Revenue [Line Items]
Revenue	579
Natural Gas
Disaggregation of Revenue [Line Items]
Revenue	2,015	589
Natural Gas | Haynesville
Disaggregation of Revenue [Line Items]
Revenue	821	272
Natural Gas | Northeast Appalachia
Disaggregation of Revenue [Line Items]
Revenue	900	317
Natural Gas | Southwest Appalachia
Disaggregation of Revenue [Line Items]
Revenue	294
Oil
Disaggregation of Revenue [Line Items]
Revenue	78	0
Oil | Haynesville
Disaggregation of Revenue [Line Items]
Revenue	0	0
Oil | Northeast Appalachia
Disaggregation of Revenue [Line Items]
Revenue	0	0
Oil | Southwest Appalachia
Disaggregation of Revenue [Line Items]
Revenue	78
NGL
Disaggregation of Revenue [Line Items]
Revenue	207	0
NGL | Haynesville
Disaggregation of Revenue [Line Items]
Revenue	0	0
NGL | Northeast Appalachia
Disaggregation of Revenue [Line Items]
Revenue	0	0
NGL | Southwest Appalachia
Disaggregation of Revenue [Line Items]
Revenue	207
Marketing
Disaggregation of Revenue [Line Items]
Revenue	910	312
Natural Gas
Disaggregation of Revenue [Line Items]
Revenue	837	197
Oil
Disaggregation of Revenue [Line Items]
Revenue	34	82
NGL
Disaggregation of Revenue [Line Items]
Revenue	$ 39	$ 33