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INVESTMENTS (Details 7) - BRL (R$) R$ in Millions		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
IfrsStatementLineItems [Line Items]
Bargain purchase		R$ 5	R$ 4	R$ 51
C E M I G Sim [Member]
IfrsStatementLineItems [Line Items]
Fair value of net assets acquired		48
Bargain purchase		5
Consideration paid	[1]	R$ 43
[1] The consideration paid include the fair value off the contingent consideration in the amount of R$ 2.

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- Definition

The gain (loss) arising from the difference between the carrying amount of the financial liability extinguished and the measurement of the consideration paid (equity instruments issued) to the creditor. [Refer: Carrying amount [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRIC
-Number 19
-IssueDate 2022-03-24
-Paragraph 11
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRIC&num=19&code=ifrs-tx-2022-en-r&anchor=para_11&doctype=Standard
-URIDate 2022-03-24

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The amount of any gain recognised in a business combination in which the net of the identifiable assets acquired and the liabilities assumed exceeds the aggregate of the consideration transferred, non-controlling interest in the acquiree and fair value of the acquirer's previously held equity interest in the acquiree. [Refer: Business combinations [member]]

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 3
-IssueDate 2022-03-24
-Paragraph B64
-Subparagraph n
-Clause i
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2022-en-r&anchor=para_B64_n_i&doctype=Appendix&subtype=B
-URIDate 2022-03-24

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