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Supplementary Oil And Gas Information (Unaudited) - Natural Gas Narrative (Details) - Natural Gas - Bcf	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Reserve Quantities [Line Items]
Change in proved developed and undeveloped reserves, net (in MMbbl)	928	3,617	2,919
Extensions and discoveries (in MMbbl)	251	545	173
Improved recovery (in MMbbl)	192	161	159
Purchases of reserves in place (in MMbbl)	228	1,654	2,615
Sales of reserves in place (in Bcf)	0	1	4
Production (in Bcf)	693	587	524
Economic revisions due to prices (in Bcf)	(575)	708	100
Revisions of prior estimates (in Bcf)	1,526	1,136	399

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- Definition

Proved Developed And Undeveloped Reserves, Economic Revisions Due To Prices

+ References

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- Definition

Additions to proved reserves that result from (1) extension of the proved acreage of previously discovered (old) reservoirs through additional drilling in periods after discovery and (2) discovery of new fields with proved reserves or of new reservoirs of proved reserves in old fields.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher SEC
-Name Form 20-F
-Section Item 18
-Subsection Instruction 2

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- Definition

Changes in proved reserve estimates resulting from application of improved recovery techniques.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

Volume increase (decrease) of proved reserves of oil and gas.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher SEC
-Name Form 20-F
-Section Item 18
-Subsection Instruction 2

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- Definition

Production of proved reserves.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher SEC
-Name Form 20-F
-Section Item 18
-Subsection Instruction 2

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Purchase of minerals in place.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher SEC
-Name Form 20-F
-Section Item 18
-Subsection Instruction 2

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Revisions represent changes in previous estimates of proved reserves, either upward or downward, resulting from new information (except for an increase in proved acreage) normally obtained from development drilling and production history or resulting from change in economic factors.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher SEC
-Name Form 20-F
-Section Item 18
-Subsection Instruction 2

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Sales of minerals in place.

+ References

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-Section Item 18
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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