LOANS, FINANCING AND DEBENTURES - Movement of loans receivable (Details) - BRL (R$) R$ in Thousands	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022
FINANCING AND LOANS
Opening balance	R$ 1,264,059
Effect on cash flow
Purchase Debentures		R$ 1,283,731
Non-cash effect
Exchange rate changes	424	1,690
Final balance		1,264,059
Loans, Financing And Bonds Receivable \| Gross value
FINANCING AND LOANS
Opening balance	1,021,645	5,843,527
Effect on cash flow
Purchase Debentures	450,000
Receiving of principal	(982,425)	(2,100,842)
Interest received	(86,013)	(93,965)
Non-cash effect
ECL	(21,618)	(3,347,749)
Recognition/derecognition of RGR	13,710	(573,008)
Loss from write-off of Itaipu receivables		(46,751)
Interest and charges incurred	205,527	742,314
Exchange rate changes	(1,428)	(49,577)
Monetary variations incurred	28,751	60,629
Effects of Deconsolidation - Eletronuclear		587,067
Final balance		1,021,645
Loans and receivables \| Gross value
FINANCING AND LOANS
Opening balance	1,021,645
Non-cash effect
Final balance	R$ 628,149	R$ 1,021,645

The decrease in financial assets resulting from expected credit losses.

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The decrease in financial assets resulting from receipt of interest.

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The increase (decrease) in financial assets resulting from derecognition of liabilities with RGR.

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The increase (decrease) in financial assets resulting from effects of deconsolidation of subsidiaries.

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The increase in financial assets resulting from interest and charges incurred.

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The increase in financial assets resulting from monetary variations incurred.

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The decrease in financial assets resulting from write-off. [Refer: Financial assets]

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

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The amount of assets that are: (a) cash; (b) an equity instrument of another entity; (c) a contractual right: (i) to receive cash or another financial asset from another entity; or (ii) to exchange financial assets or financial liabilities with another entity under conditions that are potentially favourable to the entity; or (d) a contract that will, or may be, settled in the entity’s own equity instruments and is: (i) a non-derivative for which the entity is, or may be, obliged to receive a variable number of the entity’s own equity instruments; or (ii) a derivative that will, or may be, settled other than by the exchange of a fixed amount of cash or another financial asset for a fixed number of the entity’s own equity instruments. For this purpose the entity’s own equity instruments do not include puttable financial instruments classified as equity instruments in accordance with paragraphs 16A-16B of IAS 32, instruments that impose on the entity an obligation to deliver to another party a pro rata share of the net assets of the entity only on liquidation and are classified as equity instruments in accordance with paragraphs 16C-16D of IAS 32, or instruments that are contracts for the future receipt or delivery of the entity’s own equity instruments. [Refer: Financial instruments, class [member]; Financial liabilities]

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