Revenue - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended		7 Months Ended	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Total
Disaggregation of Revenue [Line Items]
Revenue	$ 682	$ 2,987		$ 2,784	$ 7,691
Total | Marcellus
Disaggregation of Revenue [Line Items]
Revenue	259	1,324		1,126	3,085
Total | Haynesville
Disaggregation of Revenue [Line Items]
Revenue	310	1,093		968	2,733
Total | Eagle Ford
Disaggregation of Revenue [Line Items]
Revenue	113	570		690	1,774
Total | Powder River Basin
Disaggregation of Revenue [Line Items]
Revenue					99
Natural Gas
Disaggregation of Revenue [Line Items]
Revenue	587	2,496		2,153	6,049
Natural Gas | Marcellus
Disaggregation of Revenue [Line Items]
Revenue	259	1,324		1,126	3,085
Natural Gas | Haynesville
Disaggregation of Revenue [Line Items]
Revenue	310	1,093		968	2,733
Natural Gas | Eagle Ford
Disaggregation of Revenue [Line Items]
Revenue	18	79		59	211
Natural Gas | Powder River Basin
Disaggregation of Revenue [Line Items]
Revenue					20
Oil
Disaggregation of Revenue [Line Items]
Revenue	71	437		548	1,456
Oil | Marcellus
Disaggregation of Revenue [Line Items]
Revenue	0	0		0	0
Oil | Haynesville
Disaggregation of Revenue [Line Items]
Revenue	0	0		0	0
Oil | Eagle Ford
Disaggregation of Revenue [Line Items]
Revenue	71	437		548	1,390
Oil | Powder River Basin
Disaggregation of Revenue [Line Items]
Revenue					66
NGL
Disaggregation of Revenue [Line Items]
Revenue	24	54		83	186
NGL | Marcellus
Disaggregation of Revenue [Line Items]
Revenue	0	0		0	0
NGL | Haynesville
Disaggregation of Revenue [Line Items]
Revenue	0	0		0	0
NGL | Eagle Ford
Disaggregation of Revenue [Line Items]
Revenue	24	54		83	173
NGL | Powder River Basin
Disaggregation of Revenue [Line Items]
Revenue					13
Marketing
Disaggregation of Revenue [Line Items]
Revenue	724	1,206	$ 20	1,987	3,296
Natural Gas
Disaggregation of Revenue [Line Items]
Revenue	219	827		735	1,872
Oil
Disaggregation of Revenue [Line Items]
Revenue	448	328		1,117	1,231
NGL
Disaggregation of Revenue [Line Items]
Revenue	$ 57	$ 51		$ 135	$ 193