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34 Provisions (Details) - ARS ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Summary of provisions [line items] |  |
Provisions, beginning | $ 2,808 |
Provisions, ending | 2,431 | $ 2,808
Non-current liabilities [member] |  |
Summary of provisions [line items] |  |
Provisions, beginning | 2,808 | 2,240
Increases | 1,107 | 1,687
Decreases | (105) | (28)
Recovery | (587) |
Result from exposure to inflation for the year | (792) | (1,091)
Provisions, ending | 2,431 | 2,808
Current liabilities [member] |  |
Summary of provisions [line items] |  |
Provisions, beginning | 291 | 392
Increases | 163 | 174
Decreases | (12) | (105)
Recovery |  |
Result from exposure to inflation for the year | (84) | (170)
Provisions, ending | $ 358 | $ 291

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

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- Definition The amount of increase provisions. + References No definition available. + Details
Name: | edn_IncreasesProvisions
Namespace Prefix: | edn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Represent information about the recovery. + References No definition available. + Details
Name: | edn_Recovery
Namespace Prefix: | edn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition The amount of result from exposure to inflation provisions. + References No definition available. + Details
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Namespace Prefix: | edn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Schedule of summary of provision line items. + References No definition available. + Details
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Namespace Prefix: | edn_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition The amount of liabilities of uncertain timing or amount. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 54 -Subparagraph l -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_54_l&doctype=Standard -URIDate 2020-01-01 + Details
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Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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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: |