Revenues - Summary of Breakdown of Revenues by Type of Good or Service (Parenthetical) (Detail) - ARS ($) $ in Millions	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure of revenue [abstract]
Revenue from natural gas produced by the Company	$ 70,256	$ 71,491	$ 55,882

The amount of revenue arising from the sale of natural gas. [Refer: Current natural gas; Revenue]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2020-01-01
-Paragraph 112
-Subparagraph c
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-URIDate 2020-01-01

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Data Type:	xbrli:monetaryItemType
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Period Type:	duration