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29. Provisions (Details) - ARS ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017
SummaryOfProvisionsLineItems [Line Items] |  |
Provisions, beginning | $ 883,119 |
Provisions, ending | 1,070,150 | $ 883,119
Non-current liabilities |  |
SummaryOfProvisionsLineItems [Line Items] |  |
Provisions, beginning | 883,119 | 504,038
Increases | 472,067 | 411,975
Decreases | (85,662) | (4)
Result from exposure to inflation | (199,374) | (32,890)
Provisions, ending | 1,070,150 | 883,119
Current liabilities |  |
SummaryOfProvisionsLineItems [Line Items] |  |
Provisions, beginning | 190,858 | 129,808
Increases | 252,030 | 130,389
Decreases | (239,585) | (58,930)
Result from exposure to inflation | (15,868) | (10,409)
Provisions, ending | $ 187,435 | $ 190,858

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- 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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- References No definition available. + Details
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Namespace Prefix: | EDN_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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

X
- 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 2018-01-01 -Paragraph 54 -Subparagraph l -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_54_l&doctype=Standard -URIDate 2018-03-16 + Details
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Namespace Prefix: | ifrs-full_
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Period Type: | instant

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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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Balance Type: |
Period Type: |