XML 144 R129.htm IDEA: XBRL DOCUMENT
v3.23.1

LEASING (Details) | 12 Months Ended
--- | ---
Dec. 31, 2022
Later than one year and not later than two years [member] | Initial Application [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Annual rate | 7.96% |
Monthly rate | 0.64% |
Later than four years and not later than five years [member] | Initial Application [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Annual rate | 10.64% |
Monthly rate | 0.85% |
Later than four years and not later than five years [member] | Period December 2021 [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Annual rate | 6.43% | [1]
Monthly rate | 0.52% | [1]
Six to twenty years [member] | Initial Application [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Annual rate | 13.17% |
Monthly rate | 1.04% |
Up to three years [member] |  |
IfrsStatementLineItems [Line Items] |  |
Annual rate | 6.87% |
Monthly rate | 0.56% |
Three to four years [member] |  |
IfrsStatementLineItems [Line Items] |  |
Annual rate | 7.33% |
Monthly rate | 0.59% |
Four to twenty years [member] |  |
IfrsStatementLineItems [Line Items] |  |
Annual rate | 8.08% |
Monthly rate | 0.65% |
Six To Ten Years [Member] | Period December 2021 [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Annual rate | 6.54% | [1]
Monthly rate | 0.53% | [1]
Eleven To Fifteen Years [Member] | Period December 2021 [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Annual rate | 6.58% | [1]
Monthly rate | 0.54% | [1]
Sixteen To Thirty Years [Member] | Period December 2021 [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Annual rate | 6.60% | [1]
Monthly rate | 0.54% | [1]
[1] | Monthly the Company calculates the addition to the rate to be applied to the new contracts. For the purposes of publication, these are presented at the average rates used.

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- Definition Represent information about the annual rate. + References No definition available. + Details
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Namespace Prefix: | cig_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

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

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- Definition Represent information about the monthly rate. + References No definition available. + Details
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Namespace Prefix: | cig_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
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Period Type: |

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- Details
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Namespace Prefix: |
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Period Type: |

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |