Revenue - Disaggregated Revenue (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended		5 Months Ended	6 Months Ended
	Feb. 09, 2021	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2021	Jun. 30, 2022
Total
Disaggregation of Revenue [Line Items]
Revenue	$ 398	$ 2,790	$ 892	$ 1,445	$ 4,704
Total | Marcellus
Disaggregation of Revenue [Line Items]
Revenue	119	1,152	226	389	1,761
Total | Haynesville
Disaggregation of Revenue [Line Items]
Revenue	53	988	124	194	1,640
Total | Eagle Ford
Disaggregation of Revenue [Line Items]
Revenue	193	650	458	730	1,204
Total | Powder River Basin
Disaggregation of Revenue [Line Items]
Revenue	33		84	132	99
Natural Gas
Disaggregation of Revenue [Line Items]
Revenue	196	2,225	397	687	3,553
Natural Gas | Marcellus
Disaggregation of Revenue [Line Items]
Revenue	119	1,152	226	389	1,761
Natural Gas | Haynesville
Disaggregation of Revenue [Line Items]
Revenue	53	988	124	194	1,640
Natural Gas | Eagle Ford
Disaggregation of Revenue [Line Items]
Revenue	17	85	31	74	132
Natural Gas | Powder River Basin
Disaggregation of Revenue [Line Items]
Revenue	7		16	30	20
Oil
Disaggregation of Revenue [Line Items]
Revenue	179	503	444	678	1,019
Oil | Marcellus
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0	0
Oil | Haynesville
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0	0
Oil | Eagle Ford
Disaggregation of Revenue [Line Items]
Revenue	159	503	386	592	953
Oil | Powder River Basin
Disaggregation of Revenue [Line Items]
Revenue	20		58	86	66
NGL
Disaggregation of Revenue [Line Items]
Revenue	23	62	51	80	132
NGL | Marcellus
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0	0
NGL | Haynesville
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0	0
NGL | Eagle Ford
Disaggregation of Revenue [Line Items]
Revenue	17	62	41	64	119
NGL | Powder River Basin
Disaggregation of Revenue [Line Items]
Revenue	6		10	16	13
Marketing
Disaggregation of Revenue [Line Items]
Revenue	239	1,223	539	816	2,090
Natural Gas
Disaggregation of Revenue [Line Items]
Revenue	78	637	146	243	1,045
Oil
Disaggregation of Revenue [Line Items]
Revenue	141	508	340	502	903
NGL
Disaggregation of Revenue [Line Items]
Revenue	$ 20	$ 78	$ 53	$ 71	$ 142