PROVISIONS FOR LITIGATION AND CONTINGENT LIABILITIES - Probable losses paragraphs (Details) R$ in Thousands	12 Months Ended
Dec. 31, 2024 BRL (R$) lawsuit	Dec. 31, 2023 BRL (R$) lawsuit
Provisions recognized
Loan agreements	R$ 1,105,534	R$ 896,746
Judicial deposits	23,374,483	26,541,692
Estimate loss or value involved in the legal proceeding	54,055,659	47,023,866
Provisional enforcement amount provided by defendant on litigation claimed	3,590,000
Provision on legal proceedings, non-current	21,583,395	24,250,819
Insufficient collection or declaration for PIS/COFINS
Provisions recognized
Estimate loss or value involved in the legal proceeding	1,801,737	1,730,503
Tax Assessment, IOF
Provisions recognized
Estimate loss or value involved in the legal proceeding	1,470,781	932,081
Civil
Provisions recognized
Judicial deposits	19,726,980	22,833,389
Provision on legal proceedings, non-current	5,983,900	5,273,637
Civil - compulsory loan
Provisions recognized
Provisions (net of reversal)	1,451,774
Reductions obtained	3,477,047
Reductions obtained for agreements that have already been signed	1,212,074
Reductions obtained as a result of payments made	2,097,501
Judicial deposits	13,672,329	17,263,567
Provision on legal proceedings, non-current	R$ 11,959,368	R$ 15,277,173
Number of legal actions filed \| lawsuit	3,065	3,374
Declaration of Nullity \| Chesf
Provisions recognized
Litigation amount claimed	R$ 350,000
Tax
Provisions recognized
Provision on legal proceedings, non-current	803,961	R$ 784,408
Labor
Provisions recognized
Provision on legal proceedings, non-current	R$ 2,324,942	R$ 2,283,424

Amount of expenses recognized for other provisions (net of reversals) during the period.

No definition available.

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- Definition

The amount of cash paid for the settlement of litigation or for other legal issues during the period.

+ References

No definition available.

+ Details

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- Definition

Amount of reductions obtained pursuant to judicial settlements.

+ References

No definition available.

+ Details

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- Definition

Amount of reductions obtained pursuant to judicial settlements as a result of payments made.

+ References

No definition available.

+ Details

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- Definition

Amount of reductions obtained pursuant to judicial settlements, for agreements that have already been signed.

+ References

No definition available.

+ Details

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- Definition

The value (monetary amount) of the award that the entity seeks in a legal proceeding.

+ References

No definition available.

+ Details

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- Definition

Number of lawsuits filed against the entity.

+ References

No definition available.

+ Details

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- Definition

The amount of provisional enforcement sought against the entity in a legal proceeding.

+ References

No definition available.

+ Details

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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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- Definition

The amount of the estimated financial effect of contingent liabilities. [Refer: Contingent liabilities [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

The amount of provision for legal proceedings. [Refer: Other provisions]

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition

The amount of non-current provision for legal proceedings. [Refer: Legal proceedings provision]

+ References

+ Details

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