XML 111 R93.htm IDEA: XBRL DOCUMENT v3.24.1.u1

Recoverable Taxes - Additional Information (Details) - BRL (R$) R$ in Millions	6 Months Ended
	Jun. 30, 2021	Dec. 31, 2023	Dec. 31, 2022
IfrsStatementLineItems [Line Items]
Recognized operational revenue	R$ 220
PIS/PasepTaxes and Cofins [member]
IfrsStatementLineItems [Line Items]
Tax payables		R$ 1,335	R$ 1,453

X

- Definition

Ifrs Statement Line Items

+ References

No definition available.

+ Details

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Namespace Prefix:	cig_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Represent information about the recognized operational revenue.

+ References

No definition available.

+ Details

Name:	cig_RecognizedOperationalRevenue
Namespace Prefix:	cig_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

The amount of current excise tax payables. [Refer: Excise tax payables]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2023-01-01
-Paragraph 78
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_78&doctype=Standard
-URIDate 2023-03-23

+ Details

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: