Properties and Equipment Exploration (Details) $ in Millions	12 Months Ended
Dec. 31, 2020 USD ($) Wells
Property, Plant and Equipment [Line Items]
Oil and Gas, Exploratory Well Drilled, Net Nonproductive, Number \| Wells	0
Capitalized Exploratory Well Costs that Have Been Capitalized for Period Greater than One Year \| $	$ 7.5

Number of exploratory oil and gas wells incapable of producing either oil or gas in sufficient quantity to justify completion as oil or gas well.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher SEC
-Name Regulation S-K (SK)
-Number 229
-Section 1205
-Paragraph (a)
-Subparagraph (1)

+ Details

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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

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.

+ References

No definition available.

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