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31 Benefit plans (Details 4) $ in Millions	Dec. 31, 2020 ARS ($)
Discount Rate 4% [member]
DisclosureOfBenefitPlansLineItems [Line Items]
Obligation	$ 910
Variation	$ 77
Percent	9.00%
Discount Rate 6% [member]
DisclosureOfBenefitPlansLineItems [Line Items]
Obligation	$ 767
Variation	$ (66)
Percent	(8.00%)
Salary Increase 0% [member]
DisclosureOfBenefitPlansLineItems [Line Items]
Obligation	$ 764
Variation	$ (69)
Percent	(8.00%)
Salary Increase 2% [member]
DisclosureOfBenefitPlansLineItems [Line Items]
Obligation	$ 913
Variation	$ 80
Percent	10.00%

X

- Definition

The amount of obligation.

+ References

No definition available.

+ Details

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Namespace Prefix:	edn_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- 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 increase (decrease) in a defined benefit obligation that would have been caused by an increase in a significant actuarial assumption that was reasonably possible at the end of the reporting period. [Refer: Actuarial assumptions [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 19
-IssueDate 2020-01-01
-Paragraph 145
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2020-en-r&anchor=para_145_a&doctype=Standard
-URIDate 2020-01-01

+ Details

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Period Type:	instant

X

- Definition

The reasonably possible percentage of the increase in the actuarial assumption used to determine the present value of defined benefit obligation. [Refer: Actuarial assumptions [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 19
-IssueDate 2020-01-01
-Paragraph 145
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2020-en-r&anchor=para_145_a&doctype=Standard
-URIDate 2020-01-01

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X

- Details

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- Details

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- Details

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- Details

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