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Natural Gas and Oil Property Transactions - Narrative (Details) $ in Millions					1 Months Ended
	Jan. 10, 2024	Nov. 30, 2023 USD ($)	Apr. 28, 2023 USD ($)	Mar. 20, 2023 USD ($)	Nov. 30, 2023 USD ($) $ / bbl	Mar. 31, 2024 USD ($)	Aug. 31, 2023 USD ($)	Feb. 28, 2023 USD ($)	Jan. 31, 2023 USD ($)
Contingent Consideration
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Derivative, fair value, net						$ 33
Southwestern
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Share conversion ratio	0.0867
WTI NYMEX Price Average $75 to $80 per Barrel | Minimum
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Average sales price (in usd per unit) | $ / bbl					75
WTI NYMEX Price Average $75 to $80 per Barrel | Maximum
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Average sales price (in usd per unit) | $ / bbl					80
WTI NYMEX Price Average Above $80 per Barrel
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Average sales price (in usd per unit) | $ / bbl					80
Disposed of by Sale | Portion of Eagle Ford Assets
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration									$ 1,425
Purchase price				$ 225
Gain (loss) on sale of oil and natural gas properties				337
Disposed of by Sale | Portion of Eagle Ford Assets | Other Current Assets
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Deferred consideration reflected with assets						56
Disposed of by Sale | Portion of Eagle Ford Assets | Other Noncurrent Assets
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Deferred consideration reflected with assets						82
Disposed of by Sale | Portion of Remaining Eagle Ford Assets
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration								$ 1,400
Purchase price			$ 225
Gain (loss) on sale of oil and natural gas properties			470
Disposed of by Sale | Portion of Remaining Eagle Ford Assets | Other Current Assets
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Deferred consideration reflected with assets						56
Disposed of by Sale | Portion of Remaining Eagle Ford Assets | Other Noncurrent Assets
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Deferred consideration reflected with assets						146
Disposed of by Sale | Portion Eagle Ford Assets to SilverBow Resources, Inc
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration							$ 700
Purchase price		$ 50			$ 50
Gain (loss) on sale of oil and natural gas properties		140
Disposed of by Sale | Portion Eagle Ford Assets to SilverBow Resources, Inc | WTI NYMEX Price Average $75 to $80 per Barrel
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration		25			25
Disposed of by Sale | Portion Eagle Ford Assets to SilverBow Resources, Inc | WTI NYMEX Price Average Above $80 per Barrel
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration		$ 50			$ 50
Disposed of by Sale | Portion Eagle Ford Assets to SilverBow Resources, Inc | Other Current Assets
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Deferred consideration reflected with assets						$ 47
Disposed of by Sale | First Three Years | Portion of Eagle Ford Assets
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Deferred consideration paid in installments				60
Disposed of by Sale | Fourth Year | Portion of Eagle Ford Assets
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Deferred consideration paid in installments				$ 45
Disposed of by Sale | Next Four Years | Portion of Remaining Eagle Ford Assets
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Deferred consideration paid in installments			$ 56

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