INCOME TAX AND SOCIAL CONTRIBUTION - Deferred income tax and social contributions by category (Details) - BRL (R$) R$ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Temporary difference unused tax losses and unused tax credits
Deferred Income tax and social contribution	R$ 5,673,011	R$ 6,725,087
Deferred tax liabilities	(4,287,021)	(5,721,830)
Tax credits Income tax	11,014,760	5,077,818
Tax credits Social contribution	4,801,139	1,647,269
Tax debts Income tax	(9,534,459)	(3,931,590)
Tax debts Social contribution	(4,895,450)	(1,790,240)
Net asset (liability)	1,385,990	1,003,257
Tax credit without tax losses and negative basis
Temporary difference unused tax losses and unused tax credits
Deferred Income tax and social contribution	9,429,496	6,052,988
Provision for litigation
Temporary difference unused tax losses and unused tax credits
Deferred Income tax and social contribution	3,835,152	2,157,555
Loss Credits
Temporary difference unused tax losses and unused tax credits
Deferred Income tax and social contribution	782,071	1,313,871
Impairment
Temporary difference unused tax losses and unused tax credits
Deferred Income tax and social contribution	178,506	1,180,814
Contractual asset
Temporary difference unused tax losses and unused tax credits
Deferred tax liabilities	(12,748,145)	(9,810,154)
Renegotiation of hydrological risk
Temporary difference unused tax losses and unused tax credits
Deferred tax liabilities	(828,508)	(580,402)
Accelerated depreciation
Temporary difference unused tax losses and unused tax credits
Deferred tax liabilities	(301,060)	(304,495)
Other
Temporary difference unused tax losses and unused tax credits
Deferred Income tax and social contribution	356,722	419,960
Tax credits without actuarial losses
Temporary difference unused tax losses and unused tax credits
Deferred Income tax and social contribution	468,678	743,519
FVOCI Financial Instruments
Temporary difference unused tax losses and unused tax credits
Deferred tax liabilities	(391,990)	(440,834)
Provisions for operating losses
Temporary difference unused tax losses and unused tax credits
Deferred Income tax and social contribution	R$ 605,068	R$ 270,435

The amount of tax credits relating to deferred income tax.

No definition available.

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- Definition

The amount of tax credits relating to social security contribution.

+ References

No definition available.

+ Details

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- Definition

The amount of tax debts relating to deferred income tax.

+ References

No definition available.

+ Details

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- Definition

The amount of tax debts relating to social security contribution.

+ References

No definition available.

+ Details

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- Definition

The amounts of income taxes recoverable in future periods in respect of: (a) deductible temporary differences; (b) the carryforward of unused tax losses; and (c) the carryforward of unused tax credits. [Refer: Temporary differences [member]; Unused tax credits [member]; Unused tax losses [member]]

+ References

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- Definition

The amounts of income taxes payable in future periods in respect of taxable temporary differences. [Refer: Temporary differences [member]]

+ References

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- Definition

The amount of deferred tax liabilities or assets. [Refer: Deferred tax liabilities; Deferred tax assets]

+ References

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- Definition

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.

+ References

No definition available.

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