XML 206 R188.htm IDEA: XBRL DOCUMENT
v3.24.1.u1

Equity and Remuneration to Shareholders - Schedule of Income Reserves (Details) - BRL (R$) R$ in Millions | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | --- | ---
Equity And Remuneration To Shareholders |  |  |
Legal reserve | R$ 1,674 | R$ 1,387 | R$ 1,181
Statutory reserve | 57 | 57 | 57
Profit retention reserve | 8,842 | 6,546 | 7,331
Unrealized profit reserve | 835 | 835 | 835
Incentive tax reserve | 213 | 150 | 124
Reserve for mandatory dividends not distributed | 1,420 | 1,420 | 1,420
Income reserves | R$ 13,041 | R$ 10,395 | R$ 10,948

X
- Definition Equity And Remuneration To Shareholders Abstract + References No definition available. + Details
Name: | cig_EquityAndRemunerationToShareholdersAbstract
Namespace Prefix: | cig_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Legal reserve. + References No definition available. + Details
Name: | cig_LegalReserve
Namespace Prefix: | cig_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Profit retention reserve. + References No definition available. + Details
Name: | cig_ProfitRetentionReserve
Namespace Prefix: | cig_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Reserve for mandatory dividends not distributed. + References No definition available. + Details
Name: | cig_ReserveForMandatoryDividendsNotDistributed
Namespace Prefix: | cig_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Tax incentives reserve. + References No definition available. + Details
Name: | cig_TaxIncentivesReserve
Namespace Prefix: | cig_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount refers to unrealized profit reserve. + References No definition available. + Details
Name: | cig_UnrealizedProfitReserve
Namespace Prefix: | cig_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition A component of equity representing the entity's cumulative undistributed earnings or deficit. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph IG6 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_IG6&doctype=Implementation%20Guidance -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 78 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_78_e&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_RetainedEarnings
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition A component of equity representing reserves created based on legal requirements. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 55 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_55&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_StatutoryReserve
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant