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Schedule of financial assets and liabilities measured at fair value (Details) - ARS ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
IfrsStatementLineItems [Line Items] |  |
Assets | $ 16,800 | $ 7,462
Government bonds member |  |
IfrsStatementLineItems [Line Items] |  |
Assets | 8,872 | 3,352
Mutual funds member |  |
IfrsStatementLineItems [Line Items] |  |
Assets | 6,579 | $ 4,110
Cash and cash equivalents | $ 1,349 |

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- Definition The element represents cashand cashequivalents at fair value. + References No definition available. + Details
Name: | edn_CashandCashequivalentsAtFairValue
Namespace Prefix: | edn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

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- Definition The fair value of financial assets. [Refer: At fair value [member]; Financial assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2021-01-01 -Paragraph 25 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_25&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_FinancialAssetsAtFairValue
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Details
Name: | ifrs-full_ClassesOfAssetsAxis=edn_GovernmentBondsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_ClassesOfAssetsAxis=edn_MutualFundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |