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v3.23.1

INVESTMENTS (Details Narrative) - BRL (R$) R$ / shares in Units, R$ in Millions |  |  |  |  |  |  | 1 Months Ended | 6 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jan. 13, 2023 | Oct. 03, 2022 | Sep. 12, 2022 | Sep. 07, 2022 | Aug. 04, 2022 | Jun. 08, 2022 | Jun. 30, 2022 | Jun. 30, 2022 | Dec. 31, 2022 | Dec. 31, 2021 | Apr. 14, 2023 | Jun. 07, 2022
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Working capital |  |  |  |  |  |  |  |  | R$ 752 |  |  |
Working capital |  |  |  |  |  |  |  | R$ 1,583 |  |  |  |
Investment terminated |  |  |  |  |  |  | R$ 645 |  |  |  |  |
Investment income |  |  |  |  | R$ 962 |  |  |  |  |  |  |
Payment of investment |  | R$ 203 |  |  |  | R$ 1,583 |  |  |  |  |  |
Loss |  |  |  |  |  |  |  |  | 2,972 | R$ 2,832 |  |
Acquisition |  |  |  |  |  |  |  |  | 27 |  |  |
Acquisition paid |  |  |  |  |  |  |  |  | 23 |  |  |
Acquisition price |  |  |  |  |  |  |  |  | R$ 4 |  |  |
Acquisition price rate |  |  |  |  |  |  |  |  | 15.00% |  |  |
Estimated amount |  |  |  |  |  |  |  |  | R$ 7 |  |  |
Alianca Norte Energia [Member] |  |  |  |  |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Percentage of equity interest |  |  |  |  |  |  |  |  | 11.69% |  |  |
Amazonia Energia S A And Alianca Norte Energia S A [Member] |  |  |  |  |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Working capital |  |  |  |  |  |  |  |  | R$ 494 | R$ 189 |  |
Melbourne [Member] |  |  |  |  |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Amount of compensation |  |  | R$ 200 |  |  |  |  |  |  |  |  |
Recognized gain on investment |  |  |  |  |  |  |  |  | R$ 161 |  |  |
C E M I G Sim [Member] |  |  |  |  |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Acquisition rate |  |  |  | 100.00% |  |  |  |  |  |  |  |
C E M I G Sim [Member] | Forecast [Member] |  |  |  |  |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Acquisition paid | R$ 5 |  |  |  |  |  |  |  |  |  |  |
Acquisition price rate | 15.00% |  |  |  |  |  |  |  |  |  |  |
Acquisition rate | 49.00% |  |  |  |  |  |  |  |  |  |  |
Acquisition price per share | R$ 0.864 |  |  |  |  |  |  |  |  |  |  |
Cemiggt [Member] |  |  |  |  |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Equity interest rate |  |  |  |  |  |  |  |  |  |  | 49.90% |
Bottom of range [member] | Furnas [Member] |  |  |  |  |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Equity interest rate |  |  |  |  |  |  |  |  |  |  |  | 43.06%
Bottom of range [member] | Cemiggt [Member] |  |  |  |  |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Equity interest rate |  |  |  |  |  |  |  |  |  |  |  | 15.51%
Top of range [member] | Furnas [Member] |  |  |  |  |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Equity interest rate |  |  |  |  |  |  |  |  |  |  |  | 72.36%
Top of range [member] | Cemiggt [Member] |  |  |  |  |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Equity interest rate |  |  |  |  |  |  |  |  |  |  |  | 7.58%

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