XML 101 R87.htm IDEA: XBRL DOCUMENT
v3.23.2

RECOVERABLE TAXES (Details) - BRL (R$) R$ in Millions | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
IfrsStatementLineItems [Line Items] |  |
Recoverable taxes, current | R$ 1,917 | R$ 1,969
Recoverable taxes, non-current | 1,358 | 1,997
Recoverable taxes | 3,275 | 3,966
ICMS (VAT) [member] |  |
IfrsStatementLineItems [Line Items] |  |
Recoverable taxes, current | 449 | 113
Recoverable taxes, non-current | 548 | 342
PIS/PasepTaxes [member] |  |
IfrsStatementLineItems [Line Items] |  |
Recoverable taxes, current | 258 | 329
Recoverable taxes, non-current | 166 | 316
Cofins [member] |  |
IfrsStatementLineItems [Line Items] |  |
Recoverable taxes, current | 1,189 | 1,508
Recoverable taxes, non-current | 644 | 1,339
Other Tax Recoverable [member] |  |
IfrsStatementLineItems [Line Items] |  |
Recoverable taxes, current | R$ 21 | R$ 19

X
- References No definition available. + Details
Name: | cig_CurrentRecoverableTaxes
Namespace Prefix: | cig_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

X
- Definition Non-current recoverable taxes. + References No definition available. + Details
Name: | cig_NoncurrentRecoverableTaxes
Namespace Prefix: | cig_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Recoverable taxes + References No definition available. + Details
Name: | cig_RecoverableTaxes
Namespace Prefix: | cig_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | ifrs-full_ClassesOfAcquiredReceivablesAxis=cig_ICMSVATMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAcquiredReceivablesAxis=cig_PISAndPaseptaxesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAcquiredReceivablesAxis=cig_CofinsTaxMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAcquiredReceivablesAxis=cig_OtherTaxRecoverableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |