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31 Benefit plans (Details) - ARS ($) $ in Millions | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | --- | ---
Benefit Plans |  |  |
Non-current | $ 749 | $ 713 |
Current | 84 | 70 |
Total Benefit plans | $ 833 | $ 783 | $ 874

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- Definition The amount of current liabilities benefit plans. + References No definition available. + Details
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Namespace Prefix: | edn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition The amount of benefit plans. + References No definition available. + Details
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Namespace Prefix: | edn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- References No definition available. + Details
Name: | edn_BenefitPlansAbstract
Namespace Prefix: | edn_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition The amount of assets of a retirement benefit plan less liabilities other than the actuarial present value of promised retirement benefits. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 26 -IssueDate 2020-01-01 -Paragraph 35 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=26&code=ifrs-tx-2020-en-r&anchor=para_35_a&doctype=Standard -URIDate 2020-01-01 + Details
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Period Type: | instant