Lease liabilities - Additional information (Detail) - ARS ($) $ in Millions	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019
Lease liabilities [abstract]
Financial expenses resulting from lease contracts	$ 5,706	$ 2,885
Financial expenses on leases	4,739	2,574
Financial expenses on leases capitalized in Property, plant and equipment	$ 967	$ 311

The amount of interest costs that an entity incurs in connection with the borrowing of funds that are directly attributable to the acquisition, construction or production of a qualifying asset and which form part of the cost of that asset.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2020-01-01
-Paragraph 112
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_112_c&doctype=Standard
-URIDate 2020-01-01

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Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration