Natural Gas and Oil Property Transactions - Narrative (Details) - USD ($) shares in Millions				1 Months Ended	3 Months Ended		4 Months Ended	5 Months Ended	6 Months Ended
	Mar. 25, 2022	Mar. 09, 2022	Nov. 01, 2021	Feb. 09, 2021	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022
Business Acquisition [Line Items]
Natural gas and oil derivatives				$ 382,000,000	$ 514,000,000	$ 740,000,000		$ 694,000,000	$ 2,639,000,000
Costs and expenses				494,000,000	2,179,000,000	1,123,000,000		1,718,000,000	3,908,000,000
Share-based compensation				3,000,000				3,000,000	10,000,000
Nonoperating expense				(5,560,000,000)	27,000,000	9,000,000		(1,000,000)	43,000,000
Natural gas, oil and NGL
Business Acquisition [Line Items]
Revenue				$ 398,000,000	2,790,000,000	$ 892,000,000		$ 1,445,000,000	4,704,000,000
6.75% Senior Notes | Senior Notes
Business Acquisition [Line Items]
Interest rate, stated percentage			6.75%
Debt assumed			$ 950,000,000
Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from divestitures of property and equipment	$ 450,000,000
Gain (loss) on sale of oil and natural gas properties					$ 20,000,000				299,000,000
Marcellus
Business Acquisition [Line Items]
Consideration transferred		$ 2,770,000,000
Cash		$ 2,000,000,000
Shares issued in acquisition (in shares)		9.4
Natural gas and oil derivatives							$ 312,000,000
Costs and expenses							178,000,000
Marcellus | Natural gas, oil and NGL
Business Acquisition [Line Items]
Revenue							$ 473,000,000
Marcellus | Exit credit facility
Business Acquisition [Line Items]
Borrowings		$ 914,000,000
Vine Energy Corporation (Vine)
Business Acquisition [Line Items]
Consideration transferred			1,490,000,000
Cash			$ 253,000,000
Natural gas and oil derivatives									568,000,000
Costs and expenses									443,000,000
Common stock issued in the merger (in shares)			18.7
Extinguishment of debt			$ 163,000,000
Premium paid with cash			13,000,000
Share-based compensation			6,000,000
Nonoperating expense									23,000,000
Vine Energy Corporation (Vine) | Natural gas, oil and NGL
Business Acquisition [Line Items]
Revenue									$ 878,000,000
Vine Energy Corporation (Vine) | New RBL
Business Acquisition [Line Items]
Borrowings			0
Vine Energy Corporation (Vine) | Scenario, Plan [Member]
Business Acquisition [Line Items]
Cash			$ 90,000,000