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v3.23.1

POST-EMPLOYMENT OBLIGATIONS (Details 9) | 12 Months Ended
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Dec. 31, 2022
Pension plans and retirement supplement plans - Plan A [member] |
IfrsStatementLineItems [Line Items] |
Average periods of maturity of the obligations under the benefit plans | 873 years
Pension plans and retirement supplement plans - Plan B [member] |
IfrsStatementLineItems [Line Items] |
Average periods of maturity of the obligations under the benefit plans | 10 years 9 months 29 days
Health plan [member] |
IfrsStatementLineItems [Line Items] |
Average periods of maturity of the obligations under the benefit plans | 12 years 9 months 14 days
Dental plan [member] |
IfrsStatementLineItems [Line Items] |
Average periods of maturity of the obligations under the benefit plans | 12 years 4 months 13 days

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- References No definition available. + Details
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Period Type: | duration

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- Definition Total maturity period of defined benefit plans. + References No definition available. + Details
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Namespace Prefix: | cig_
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- Details
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- Details
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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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Balance Type: |
Period Type: |