Natural Gas and Oil Property Transactions - Narrative (Details) shares in Millions, $ in Millions							1 Months Ended		2 Months Ended	9 Months Ended	10 Months Ended	11 Months Ended	12 Months Ended
	Nov. 30, 2023 USD ($)	Apr. 28, 2023 USD ($)	Mar. 20, 2023 USD ($)	Mar. 25, 2022 USD ($)	Mar. 09, 2022 USD ($) shares	Nov. 01, 2021 USD ($) shares	Nov. 30, 2023 USD ($) $ / bbl	Feb. 09, 2021 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Aug. 31, 2023 USD ($)	Feb. 28, 2023 USD ($)	Jan. 31, 2023 USD ($)
Business Acquisition [Line Items]
Derivative (gains) losses, net								$ 382				$ 1,127	$ (1,728)	$ 2,680
Costs and expenses								494				4,611	5,579	7,963
Share-based compensation								3				9	33	22
Nonoperating expense								(5,560)				42	25	129
Contingent Consideration
Business Acquisition [Line Items]
Derivative, fair value, net													12
WTI NYMEX Price Average Above $80 per Barrel
Business Acquisition [Line Items]
Average sales price (in usd per unit) | $ / bbl							80
Minimum | WTI NYMEX Price Average $75 to $80 per Barrel
Business Acquisition [Line Items]
Average sales price (in usd per unit) | $ / bbl							75
Maximum | WTI NYMEX Price Average $75 to $80 per Barrel
Business Acquisition [Line Items]
Average sales price (in usd per unit) | $ / bbl							80
Disposal group, disposed of by sale, not discontinued operations
Business Acquisition [Line Items]
Gain (loss) on sale of oil and natural gas properties														293
Proceeds from divestitures of property and equipment				$ 450
Disposal group, disposed of by sale, not discontinued operations | Post-Close Adjustments
Business Acquisition [Line Items]
Gain (loss) on sale of oil and natural gas properties										$ 13
Portion of Eagle Ford Assets | Disposal group, disposed of by sale, not discontinued operations
Business Acquisition [Line Items]
Consideration received																	$ 1,425
Purchase price			$ 225
Gain (loss) on sale of oil and natural gas properties			337
Property, plant and equipment										811	$ 811			811
Other assets held-for-sale										8	8			8
Derivative liabilities										65	65			65
ARO liabilities										57	57			57
Other liabilities										$ 22	22			22
Portion of Eagle Ford Assets | Disposal group, disposed of by sale, not discontinued operations | Short-term derivative asset
Business Acquisition [Line Items]
Deferred consideration reflected with assets													58
Portion of Eagle Ford Assets | Disposal group, disposed of by sale, not discontinued operations | Long-term derivative asset
Business Acquisition [Line Items]
Deferred consideration reflected with assets													135
Portion of Eagle Ford Assets | Disposal group, disposed of by sale, not discontinued operations | First Three Years
Business Acquisition [Line Items]
Deferred consideration paid in installments			60
Portion of Eagle Ford Assets | Disposal group, disposed of by sale, not discontinued operations | Fourth Year
Business Acquisition [Line Items]
Deferred consideration paid in installments			$ 45
Portion Of Remaining Eagle Ford Assets | Disposal group, disposed of by sale, not discontinued operations
Business Acquisition [Line Items]
Consideration received																$ 1,400
Purchase price		$ 225
Gain (loss) on sale of oil and natural gas properties		470
ARO liabilities		53
Portion Of Remaining Eagle Ford Assets | Disposal group, disposed of by sale, not discontinued operations | Short-term derivative asset
Business Acquisition [Line Items]
Deferred consideration reflected with assets													55
Portion Of Remaining Eagle Ford Assets | Disposal group, disposed of by sale, not discontinued operations | Long-term derivative asset
Business Acquisition [Line Items]
Deferred consideration reflected with assets													144
Portion Of Remaining Eagle Ford Assets | Disposal group, disposed of by sale, not discontinued operations | Next Four Years
Business Acquisition [Line Items]
Deferred consideration paid in installments		$ 56
Final Portion of Eagle Ford Assets | Disposal group, disposed of by sale, not discontinued operations
Business Acquisition [Line Items]
Consideration received															$ 700
Purchase price															$ 50
Gain (loss) on sale of oil and natural gas properties	$ 140
ARO liabilities	11						$ 11
Final Portion of Eagle Ford Assets | Disposal group, disposed of by sale, not discontinued operations | WTI NYMEX Price Average $75 to $80 per Barrel
Business Acquisition [Line Items]
Consideration received	25						25
Final Portion of Eagle Ford Assets | Disposal group, disposed of by sale, not discontinued operations | WTI NYMEX Price Average Above $80 per Barrel
Business Acquisition [Line Items]
Consideration received	$ 50						$ 50
Final Portion of Eagle Ford Assets | Disposal group, disposed of by sale, not discontinued operations | Short-term derivative asset
Business Acquisition [Line Items]
Deferred consideration reflected with assets													46
Natural gas, oil and NGL
Business Acquisition [Line Items]
Revenues								398				4,401	3,547	9,892
Marketing
Business Acquisition [Line Items]
Revenues								$ 239				2,263	$ 2,500	4,231
6.75% senior notes due 2029 | Senior notes
Business Acquisition [Line Items]
Interest rate						6.75%							6.75%
Liabilities incurred						$ 950
Marcellus
Business Acquisition [Line Items]
Consideration transferred					$ 2,770
Cash					$ 2,000
Issuance of common stock for Acquisition (in shares) | shares					9.4
Acquisition related costs														41
Measurement period adjustments, cash and current liabilities					$ 39
Derivative (gains) losses, net											379
Costs and expenses											483
Marcellus | Natural gas, oil and NGL
Business Acquisition [Line Items]
Revenues											1,331
Marcellus | Marketing
Business Acquisition [Line Items]
Revenues											$ 20
Marcellus | Exit credit facility
Business Acquisition [Line Items]
Revolving credit facility					$ 914
Vine Acquisition
Business Acquisition [Line Items]
Consideration transferred						1,490
Cash						$ 253
Acquisition related costs												59
Revenues									$ 290					1,863
Derivative (gains) losses, net									(144)					624
Costs and expenses									177					924
Common stock issued for acquisition (in shares) | shares						18.7
Cash consideration						$ 90
Extinguishment of debt						163
Premium paid with cash						13
Severance costs												36
Cash severance												15
Non-cash severance												$ 21
Measurement period adjustments, deferred tax liabilities and unproved properties						19
Share-based compensation						$ 6
Nonoperating expense									$ 12					$ 39