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Schedule of net finance costs (Details) - ARS ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
IfrsStatementLineItems [Line Items] |  |  |
Total financial income | $ 65 | $ 83 | $ 118
Total finance costs | (26,961) | (13,996) | (13,889)
Total other finance costs | 1,741 | (2,852) | (7,236)
Total net finance costs | (25,155) | (16,765) | (21,007)
Financial interest member |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Total financial income | 65 | 38 | 113
Other interest member |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Total financial income |  | 45 | 5
Commercial interest member |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Total finance costs | (22,232) | (9,031) | (6,139)
Interest and other expenses member |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Total finance costs | (4,688) | (4,783) | (7,704)
Fiscal interest member |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Total finance costs | (4) | (165) | (11)
Bank fees and expenses member |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Total finance costs | (37) | (17) | (35)
Changes fair value financial assets member |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Total other finance costs | 3,967 | 1,492 | 578
Net gain repurchase notes member |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Total other finance costs | 3 | 626 | 939
Exchange differences member |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Total other finance costs | (1,602) | (4,458) | (8,561)
Adjustment present value receivables member |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Total other finance costs | (150) | (195) | (157)
Recovery of provision for credit r d s a member |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Total other finance costs | 580 |  |
Other financial expense member |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Total other finance costs | $ (1,057) | $ (317) | $ (35)

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- Definition The element represents finance income expense net. + References No definition available. + Details
Name: | edn_FinanceIncomeExpenseNet
Namespace Prefix: | edn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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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 element represents other finance costs. + References No definition available. + Details
Name: | edn_OtherFinanceCosts
Namespace Prefix: | edn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition The amount of costs associated with financing activities of the entity. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 82 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_82_b&doctype=Standard -URIDate 2021-03-24 + Details
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Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition The amount of income associated with interest and other financing activities of the entity. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 85 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_85&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_FinanceIncome
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | edn_FinancialIncomeExpenseAxis=edn_CommercialInterestMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |