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30. RELATED PARTY TRANSACTIONS (Details 1) - BRL (R$) R$ in Millions	Dec. 31, 2020	Dec. 31, 2019
Disclosure of transactions between related parties [line items]
Dividends receivable	R$ 188	R$ 186
Light [member]
Disclosure of transactions between related parties [line items]
Dividends receivable	71	73
Alianca geracao [member]
Disclosure of transactions between related parties [line items]
Dividends receivable	114	103
Others [member]
Disclosure of transactions between related parties [line items]
Dividends receivable	R$ 3	R$ 10

X

- Definition

Dividends Receivable from subsidiaries.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

+ References

No definition available.

+ Details

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- Details

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X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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