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CONCESSION FINANCIAL AND SECTOR ASSETS AND LIABILITIES (Details 1) - BRL (R$) R$ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
IfrsStatementLineItems [Line Items] |  |  |
Amounts received | R$ (309) | R$ (281) | R$ (265)
Infrastructure [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Beginning Balance | 4,326 | 3,924 | 3,768
Amounts received | (309) | (280) | (266)
Transfers from contract assets | 670 | 110 | 60
Transfers from (to) intangible assets | (22) | (9) | (5)
Monetary adjustment |  |  | 367
Interest | 556 | 582 |
Disposals | (1) | (1) |
Fair Value Adjustments | (171) |  |
Ending Balance | 5,049 | 4,326 | 3,924
Infrastructure [member] | Distribution [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Beginning Balance | 684 | 530 | 460
Transfers from contract assets | 670 | 110 | 60
Transfers from (to) intangible assets | (22) | (9) | (5)
Monetary adjustment |  |  | 15
Interest | 39 | 54 |
Disposals | (1) | (1) |
Ending Balance | 1,370 | 684 | 530
Infrastructure [member] | Generation [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Beginning Balance | 3,608 | 3,365 | 3,284
Amounts received | (309) | (280) | (266)
Monetary adjustment |  |  | 347
Interest | 514 | 523 |
Fair Value Adjustments | (171) |  |
Ending Balance | 3,642 | 3,608 | 3,365
Infrastructure [member] | Gas [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Beginning Balance | 34 | 29 | 24
Monetary adjustment |  |  | 5
Interest | 3 | 5 |
Ending Balance | R$ 37 | R$ 34 | R$ 29

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