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v3.21.1

29 Borrowings (Details 4) - ARS ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
USD |  |
Disclosure of detailed information about borrowings [line items] |  |
Deb structure, beginning | $ 11,159 |
Deb structure, ending | $ 8,261 | $ 11,159
Class 9 [member] | Fixed rate par note [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Rate | 9.75% | 9.75%
Year of maturity | 2022 | 2022
Class 9 [member] | Fixed rate par note [member] | USD |  |
Disclosure of detailed information about borrowings [line items] |  |
Deb structure, beginning | $ 137 | $ 166
Debt repurchase | (39) | (29)
Deb structure, ending | $ 98 | $ 137

X
- Definition The amount of corporate note debt repurchase. + References No definition available. + Details
Name: | edn_CorporateNoteDebtRepurchase
Namespace Prefix: | edn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of corporate note program. + References No definition available. + Details
Name: | edn_CorporateNoteProgram
Namespace Prefix: | edn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount of corporate note year of maturity. + References No definition available. + Details
Name: | edn_CorporateNoteYearOfMaturity
Namespace Prefix: | edn_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of rate corporate note. + References No definition available. + Details
Name: | edn_RateCorporateNote
Namespace Prefix: | edn_
Data Type: | num:percentItemType
Balance Type: | na
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
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Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | srt_CurrencyAxis=currency_USD
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_ClassesOfLiabilitiesAxis=edn_CorporateNote2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialInstrumentsAxis=edn_FixedRateParNoteMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |