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28 Deferred revenue (Details) - ARS ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Summary of deferred revenue [line items]
Non-current	$ 1,471	$ 368
Current	37	7
Nonrefundable customer contributions [member]
Summary of deferred revenue [line items]
Non-current	1,471	368
Current	$ 37	$ 7

X

- Definition

Schedule of summary of deferred revenue line items.

+ References

No definition available.

+ Details

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Namespace Prefix:	edn_
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X

- Definition

The amount of deferred income classified as current. [Refer: Deferred income]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2020-01-01
-Paragraph 78
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_78&doctype=Standard
-URIDate 2020-01-01

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X

- Definition

The amount of deferred income classified as non-current. [Refer: Deferred income]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2020-01-01
-Paragraph 78
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_78&doctype=Standard
-URIDate 2020-01-01

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X

- Details

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Namespace Prefix:
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Balance Type:
Period Type: