Schedule Of Property Plant And Equipment By Segment [Line Items]

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- Definition

Amount of increase (decrease) in capitalized exploratory well costs.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 235
-Section 50
-Paragraph 1B
-Subparagraph a
-URI http://asc.fasb.org/extlink&oid=123377692&loc=SL6806780-109447

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- Definition

The amount of exploratory well costs that have been capitalized for a period of greater than one year after the completion of drilling.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 235
-Section 50
-Paragraph 1B
-Subparagraph b
-URI http://asc.fasb.org/extlink&oid=123377692&loc=SL6806780-109447

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- Definition

Dry hole costs from oil and gas producing activities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 360
-Section 25
-Paragraph 9
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=96866604&loc=d3e64954-109465

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 235
-Section 50
-Paragraph 23
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=123377692&loc=d3e62136-109447

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Property, Plant and Equipment - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Schedule Of Property Plant And Equipment By Segment [Line Items]
Amounts capitalized greater than one year after completion of drilling	$ 80	$ 98
Exploratory well cost capitalized during the year		$ 40	$ 34	$ 6
Permian Basin
Schedule Of Property Plant And Equipment By Segment [Line Items]
Dry well cost	$ 28