XML 151 R136.htm IDEA: XBRL DOCUMENT v3.23.1

TAXES PAYABLE AND AMOUNTS TO BE REFUNDED TO CUSTOMERS (Details Narrative) - BRL (R$) R$ in Millions	1 Months Ended			12 Months Ended
	Jun. 22, 2022	May 25, 2021	Aug. 18, 2020	Dec. 31, 2022	Jun. 30, 2022
Taxes Payable And Amounts To Be Refunded To Customers
Tax credits					R$ 624
Tax credits				R$ 1,479
Negative financial component	R$ 2,811	R$ 1,573	R$ 714
Tax payable term				10 years
Liability				R$ 176
Amounts unduly paid				10 years

X

- Definition

Amounts unduly paid.

+ References

No definition available.

+ Details

Name:	cig_AmountsUndulyPaid
Namespace Prefix:	cig_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Negative financial component.

+ References

No definition available.

+ Details

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

X

- References

No definition available.

+ Details

Name:	cig_RegulatoryDeferralAccountCreditBalanceAndRelatedDeferredTaxLiability
Namespace Prefix:	cig_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- References

No definition available.

+ Details

Name:	cig_TaxPayableTerm
Namespace Prefix:	cig_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

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

X

- Definition

The amount of liabilities that the entity does not separately disclose in the same statement or note.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2022-03-24
-Paragraph 55
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_55&doctype=Standard
-URIDate 2022-03-24

+ Details

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

X

- Definition

The amount of unused tax credits for which no deferred tax asset is recognised in the statement of financial position. [Refer: Unused tax credits [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 12
-IssueDate 2022-03-24
-Paragraph 81
-Subparagraph e
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=12&code=ifrs-tx-2022-en-r&anchor=para_81_e&doctype=Standard
-URIDate 2022-03-24

+ Details

Name:	ifrs-full_UnusedTaxCreditsForWhichNoDeferredTaxAssetRecognised
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant