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32. RELATED PARTY TRANSACTIONS (Details 2) R$ in Millions | 12 Months Ended
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Dec. 31, 2019 BRL (R$)
Disclosure of transactions between related parties [line items] |  |
Related party transaction amount | R$ 4,607 |
Santo Antnio Energia S.A. One [Member] |  |
Disclosure of transactions between related parties [line items] |  |
Related party | Santo Antônio Energia (SAESA) | [1]
Relationship | Affiliated | [1]
Type | Surety | [1]
Objective | Guarantee | [1]
Related party transaction amount | R$ 939 | [1]
Maturity | 2034 | [1]
Norte Energia S.A [Member] |  |
Disclosure of transactions between related parties [line items] |  |
Related party | Norte Energia (NESA) |
Relationship | Affiliated |
Type | Surety |
Objective | Financing |
Related party transaction amount | R$ 2,555 |
Maturity | 2042 |
Santo Antnio Energia S.A. [Member] |  |
Disclosure of transactions between related parties [line items] |  |
Related party | Santo Ant?nio Energia (SAESA) (2) | [1]
Relationship | Affiliated | [1]
Type | Surety | [1]
Objective | Debentures | [1]
Related party transaction amount | R$ 424 | [1]
Maturity | 2037 | [1]
Centroeste [Member] |  |
Disclosure of transactions between related parties [line items] |  |
Related party | Centroeste |
Relationship | Jointly-controlled entity |
Type | Surety |
Objective | Financing |
Related party transaction amount | R$ 5 |
Maturity | 2023 |
Light [Member] |  |
Disclosure of transactions between related parties [line items] |  |
Related party | Light | [2]
Relationship | Affiliated | [2]
Type | Counter-guarantee | [2]
Objective | Financing | [2]
Related party transaction amount | R$ 684 | [2]
Maturity | 2042 | [2]
[1] | Corporate guarantee given by Cemig to Saesa.
[2] | Related to execution of guarantees of the Norte Energia financing.

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