XML 172 R151.htm IDEA: XBRL DOCUMENT
v3.25.1

Loans and Debentures - Schedule of Restrictive Covenants (Details) | 12 Months Ended
--- | ---
Dec. 31, 2024
8th Debentures Issuance Gasmig [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Title | 8th Debentures Issuance Gasmig |
Covenant | Ebitda/Debt servicing Net debt / Ebitda (2) | [1]
Ratio required Issuer | 1.3 or more 3.0 or less |
Compliance required | Annual |
9th Debentures Issuance Gasmig [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Title | 9th Debentures Issuance Gasmig |
Covenant | Ebitda/Net financial income 'Net debt / Ebitda |
Ratio required Issuer | 1.3 or more 3.0 or less |
Compliance required | Annual |
9th Debenture Issue CEMIG GT [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Title | 9th Debenture Issue CEMIG GT | [2]
Covenant | Net debt / Adjusted Ebitda (1) | [3]
Ratio required Issuer | 3.5 or less |
Ratio required CEMIG | 3.0 from Dec. 31, 2022 to June 30, 2026 and 3.5 from Dec. 31, 2026 onwards |
Compliance required | Semi-annual and annual |
7th and 8th Debentures Issuance CEMIG D [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Title | 7th and 8th Debentures Issuance CEMIG D |
Covenant | Net debt / Adjusted Ebitda (1) |
Ratio required Issuer | 3.5 or less |
Ratio required CEMIG | 3.0 or less |
Compliance required | Semi-annual and annual |
9th Debentures Issuance CEMIG D [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Title | 9th Debentures Issuance CEMIG D |
Covenant | Net debt / Ebitda |
Ratio required Issuer | 3.5 or less |
Ratio required CEMIG | 3.0 or less |
Compliance required | Semi-annual and annual |
10th Debentures Issue CEMIG D [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Title | 10th Debentures Issue CEMIG D |
Covenant | Net debt / Ebitda |
Ratio required Issuer | 3.5 or less from June 30, 2024 to June 30, 2029 4.0 or less from June 30, 2029 onwards |
Ratio required CEMIG | 3.0 or less up to June 30, 2026 3.5 or less from July 1, 2026 to June 30, 2029 4.0 or less from June 30, 2029 onwards |
Compliance required | Semi-annual and annual |
11th Debentures Issue CEMIG D [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Title | 11th Debentures Issue CEMIG D |
Covenant | Net debt / Ebitda |
Ratio required Issuer | 3.5 or less from December 31, 2024 to June 30, 2029 4.0 or less from June 30, 2029 onwards |
Ratio required CEMIG | 3.0 or less up to June 30, 2026 3.5 or less from July 1, 2026 to June 30, 2029 4.0 or less from June 30, 2029 onwards |
Compliance required | Semi-annual and annual |
[1] | Non-compliance with financial covenants implies non-automatic early maturity. If early maturity is declared by the debenture holders, Gasmig must make the payment upon receipt of the notification.
[2] | Non-compliance with financial covenants implies early maturity resulting in the immediate enforceability of payment by CEMIG GT of the Unit Nominal Value or Updated Unit Nominal Value of the Debentures, as the case may be, plus remuneration, in addition to the other charges due, regardless of judicial or extrajudicial notice, notification or interpellation.
[3] | Adjusted Ebitda corresponds to earnings before interest, income taxes and social contribution on net income, depreciation and amortization, calculated in accordance with CVM Resolution 156, dated June 23, 2022, from which non-operating income, any credits and non-cash gains that increase net income are subtracted, to the extent that they are non-recurring, and any cash payments made on a consolidated basis during such period in respect of non-cash charges that were added back in the determination of Ebitda in any prior period, and increased by non-cash expenses and non-cash charges, to the extent that they are non-recurring.

X
- Definition Description Of Compliance Required + References No definition available. + Details
Name: | cig_DescriptionOfComplianceRequired
Namespace Prefix: | cig_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Description Of Covenant + References No definition available. + Details
Name: | cig_DescriptionOfCovenant
Namespace Prefix: | cig_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Description Of Ratio Required Cemig + References No definition available. + Details
Name: | cig_DescriptionOfRatioRequiredCemig
Namespace Prefix: | cig_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Description Of Ratio Required Issuer + References No definition available. + Details
Name: | cig_DescriptionOfRatioRequiredIssuer
Namespace Prefix: | cig_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Description Of Title Of Securities + References No definition available. + Details
Name: | cig_DescriptionOfTitleOfSecurities
Namespace Prefix: | cig_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=cig_DebenturesIssueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=cig_DebenturesIssue2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=cig_DebenturesIssue5Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=cig_DebenturesIssue1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=cig_DebenturesIssue6Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=cig_DebenturesTenthIssueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=cig_DebenturesEleventhIssueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |