Supplemental Disclosures About Natural Gas, Oil and NGL Producing Activities (unaudited) - Schedule of Exploration Expense and Cost Incurred (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Acquisition of properties:
Proved properties	$ 10,010	$ 10	$ 2,321
Unproved properties	4,393	52	795
Exploratory costs	17	15	15
Development costs	1,420	1,721	1,918
Costs incurred	15,840	$ 1,798	5,049
Southwestern
Acquisition of properties:
Proved properties	10,000
Unproved properties	$ 4,300
Marcellus
Acquisition of properties:
Proved properties			2,300
Unproved properties			$ 800