Derivative and Hedging Activities - Schedule of Estimated Fair Values of Our Natural Gas and Oil Derivative Instrument Assets (Liabilities) (Details) - Energy Related Derivative $ in Millions	3 Months Ended	12 Months Ended
Mar. 31, 2024 USD ($) Bcf	Dec. 31, 2023 USD ($) Bcf
Derivative [Line Items]
Fair Value	$ 632	$ 699
Eagle Ford divestiture
Derivative [Line Items]
Fair Value	$ 33	$ 12
Natural Gas
Derivative [Line Items]
Notional Volume \| Bcf	1,314	1,479
Fair Value	$ 599	$ 687
Natural Gas \| Fixed-price swaps
Derivative [Line Items]
Notional Volume \| Bcf	314	343
Fair Value	$ 199	$ 188
Natural Gas \| Collars
Derivative [Line Items]
Notional Volume \| Bcf	511	558
Fair Value	$ 451	$ 497
Natural Gas \| Basis protection swaps
Derivative [Line Items]
Notional Volume \| Bcf	489	578
Fair Value	$ (51)	$ 2

Fair values as of the balance sheet date of the net amount of all assets and liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 5
-SubTopic 10
-Topic 815
-Publisher FASB
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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 815
-SubTopic 40
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Subparagraph (f)
-Publisher FASB
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