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v3.25.1

Post-Employment Obligations - Schedule of Changes in Net Liabilities (Details) - BRL (R$) R$ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
IfrsStatementLineItems [Line Items] |  |  |  |  |
Net liabilities, Beginning balance | R$ 4,306 | R$ 5,417 |  | R$ 5,693 | R$ 6,205
Expense recognized in Statement of income |  | 488 |  | 668 | 670
Past service cost |  |  |  | (56) | (4)
Contributions paid |  | (440) |  | (536) | (482)
Actuarial gains (losses) |  | (1,159) |  | (352) | (696)
Net liabilities, Ending balance |  | 4,306 |  | 5,417 | 5,693
Current liabilities |  | 233 |  | 329 |
Non-currentliabilities |  | 4,073 |  | 5,088 |
Pension And Retirement Supplement Plans [member] |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |
Net liabilities, Beginning balance | 1,702 | 2,357 |  | 2,318 | 2,670
Expense recognized in Statement of income |  | 214 |  | 280 | 285
Past service cost |  |  |  |  | (4)
Contributions paid |  | (239) |  | (313) | (272)
Actuarial gains (losses) |  | (630) | [1] | 72 | (361)
Net liabilities, Ending balance |  | 1,702 |  | 2,357 | 2,318
Health plan [member] |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |
Net liabilities, Beginning balance | 2,560 | 3,007 |  | 3,314 | 3,469
Expense recognized in Statement of income |  | 269 |  | 381 | 378
Past service cost |  |  |  | (55) |
Contributions paid |  | (197) |  | (218) | (206)
Actuarial gains (losses) | 305 | (519) |  | (415) | (327)
Net liabilities, Ending balance |  | 2,560 |  | 3,007 | 3,314
Dental plan [member] |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |
Net liabilities, Beginning balance | 44 | 53 |  | 61 | 66
Expense recognized in Statement of income |  | 5 |  | 7 | 7
Past service cost |  |  |  | (1) |
Contributions paid |  | (4) |  | (5) | (4)
Actuarial gains (losses) | R$ 5 | (10) |  | (9) | (8)
Net liabilities, Ending balance |  | 44 |  | R$ 53 | R$ 61
Current liabilities |  | 233 |  |  |
Non-currentliabilities |  | R$ 4,073 |  |  |
[1] | The reduction of liabilities is, essentially, due to the changes in the actuarial assumptions used. There is more information below in this note.

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- Definition Past Service Cost + References No definition available. + Details
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- Definition Post retirement expenses recognized in statement of income. + References No definition available. + Details
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- Definition The decrease (increase) in a net defined benefit liability (asset) resulting from actuarial gains (losses) arising from changes in financial assumptions that result in remeasurements of the net defined benefit liability (asset). Financial assumptions deal with items such as: (a) the discount rate; (b) benefit levels, excluding any cost of the benefits to be met by employees, and future salary; (c) in the case of medical benefits, future medical costs, including claim handling costs (ie the costs that will be incurred in processing and resolving claims, including legal and adjuster's fees); and (d) taxes payable by the plan on contributions relating to service before the reporting date or on benefits resulting from that service. [Refer: Net defined benefit liability (asset)] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2024-01-01 -Paragraph 141 -Subparagraph c -Clause iii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2024-en-r&anchor=para_141_c_iii&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The amount of current net defined benefit liability. [Refer: Net defined benefit liability] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 55 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_55&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The amount of employer contributions to retirement benefit plans. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 26 -IssueDate 2024-01-01 -Paragraph 35 -Subparagraph b -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=26&code=ifrs-tx-2024-en-r&anchor=para_35_b_i&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The amount of non-current net defined benefit liability. [Refer: Net defined benefit liability] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 55 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_55&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The fair value of any plan assets, less the present value of the defined benefit obligation. [Refer: Plan assets [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2024-01-01 -Paragraph 57 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2024-en-r&anchor=para_57_a&doctype=Standard -URIDate 2024-03-27 + Details
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