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14 Property, plant and equipment (Details Narrative) - ARS ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Direct costs | $ 1,846,000 | $ 1,533,500 | $ 2,137,900
General Rodriguez transformer station [member] |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Direct costs | $ 1,453,200 |  |

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- Definition The amount of direct costs. + References No definition available. + Details
Name: | edn_DirectCosts
Namespace Prefix: | edn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
Name: | ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=edn_GeneralRodriguezTransformerStationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |