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OPERATING EXPENSES - Provisions or Operational Reversals (Details) - BRL (R$) R$ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
OPERATING COSTS AND EXPENSES
Reversal (provision) for litigation	R$ 160,290	R$ 1,246,332	R$ (1,857,566)
Onerous contracts	386,693	(862,029)	229,582
Reversals (Constitutions) on estimated losses on investments	250,069	175,549	92,226
Fair value measurements of assets held for sale	(46,581)	(704,467)
Impairment	533,774	(956,492)	(267,815)
Refunds to the RGR Fund		(558,360)
Implementation of Actions - Compulsory Loan	(70,207)	38,987
Actuarial Costs/Expenses	(490,053)	(559,949)
Measurement at fair value of the asset held for sale	(46,581)	(704,467)
Others	(30,827)	(147,685)	102,770
Operating Charges (Reversals), Net	180,019	(2,481,054)	(6,928,425)
Civil - compulsory loan
OPERATING COSTS AND EXPENSES
Reductions obtained for agreements that have already been signed	1,212,074
Financing and Loans
OPERATING COSTS AND EXPENSES
ECL	(14,553)	(21,618)	(3,347,749)
Consumers and resellers
OPERATING COSTS AND EXPENSES
ECL	(391,334)	(466,598)	R$ (1,674,333)
Other credits
OPERATING COSTS AND EXPENSES
ECL	R$ (168,906)	R$ 39,906

X

- Definition

The total amount of operating expenses included as part of provisions for actuarial administrative costs and expenses incurred by the entity during the reporting period.

+ References

No definition available.

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- Definition

The amount of allowance for Expected Credit Loss.

+ References

No definition available.

+ Details

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- Definition

The amount of provision for compulsory loan.

+ References

No definition available.

+ Details

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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.

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- Definition

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

+ References

No definition available.

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X

- Definition

The net amount of operating charges (reversals).

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- Definition

The amount of operational impairment of long term assets.

+ References

No definition available.

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- Definition

The amount of operational provision (reversal) for onerous contracts.

+ References

No definition available.

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- Definition

The amount of income (expenses) that the entity does not separately disclose in the same statement or note when the entity uses the 'nature of expense' form for its analysis of income (expenses).

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- Definition

Amount of provision for litigation of civil and labor lwasuits.

+ References

No definition available.

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- Definition

The amount of provision/(Reversal) for losses on investments

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No definition available.

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- Definition

The amount of restitution to Reserva Global de Reversao fund.

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- Definition

The gains on subsequent increase in fair value less costs to sell (not in excess of recognised cumulative impairment loss) and losses on write-down to fair value less costs to sell for non-current assets or disposal groups held for sale.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 5
-IssueDate 2023-01-01
-Paragraph 41
-Subparagraph c
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=5&code=ifrs-tx-2023-en-r&anchor=para_41_c&doctype=Standard
-URIDate 2023-03-23

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