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Financial instruments and risk management - Classification (Details) - Financial risks management - BRL (R$) R$ in Thousands | Jun. 30, 2025 | Dec. 31, 2024
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Disclosure of detailed information about financial instruments [line items] |  |
Financial assets | R$ 34,844,680 | R$ 37,168,630
Financial liabilities | 110,288,186 | 127,361,288
Financial Liabilities, Net of Financial Assets | 75,443,506 | 90,192,658
Financial liabilities at amortised cost, category [member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial liabilities | 104,637,353 | 116,906,468
Financial liabilities at amortised cost, category [member] | Trade accounts payable |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial liabilities | 5,951,839 | 6,033,285
Financial liabilities at amortised cost, category [member] | Loans, financing and debentures |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial liabilities | 91,627,156 | 101,435,531
Financial liabilities at amortised cost, category [member] | Lease liabilities |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial liabilities | 6,787,997 | 6,972,915
Financial liabilities at amortised cost, category [member] | Liabilities for assets acquisitions and subsidiaries |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial liabilities | 112,535 | 120,490
Financial liabilities at amortised cost, category [member] | Dividends and interests on own capital payable |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial liabilities | 1,997 | 2,200,917
Financial liabilities at amortised cost, category [member] | Other liabilities |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial liabilities | 155,829 | 143,330
At fair value through profit or loss |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial liabilities | 5,650,833 | 10,454,820
At fair value through profit or loss | Derivative financial instruments |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial liabilities | 5,650,833 | 10,454,820
Financial assets at amortised cost, category [member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial assets | 20,252,668 | 18,779,953
Financial assets at amortised cost, category [member] | Cash and cash equivalents |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial assets | 12,283,589 | 9,018,818
Financial assets at amortised cost, category [member] | Trade accounts receivable |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial assets | 7,287,028 | 9,132,860
Financial assets at amortised cost, category [member] | Other assets |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial assets | 682,051 | 628,275
At fair value through other comprehensive income |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial assets | 931,722 | 1,138,066
At fair value through other comprehensive income | Investments |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial assets | 931,722 | 1,138,066
At fair value through profit or loss |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial assets | 13,660,290 | 17,250,611
At fair value through profit or loss | Derivative financial instruments |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial assets | 5,156,340 | 3,887,100
At fair value through profit or loss | Marketable securities |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial assets | R$ 8,503,950 | R$ 13,363,511

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- Definition 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: Classes of financial instruments [domain]; Financial liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 25 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_25&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 35H -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_35H&doctype=Standard -URIDate 2024-03-27 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 35M -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_35M&doctype=Standard -URIDate 2024-03-27 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 35N -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_35N&doctype=Standard -URIDate 2024-03-27 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 35I -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_35I&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The amount of liabilities that are: (a) a contractual obligation: (i) to deliver cash or another financial asset to another entity; or (ii) to exchange financial assets or financial liabilities with another entity under conditions that are potentially unfavourable to the entity; or (b) 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 deliver 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, rights, options or warrants to acquire a fixed number of the entity’s own equity instruments for a fixed amount of any currency are equity instruments if the entity offers the rights, options or warrants pro rata to all of its existing owners of the same class of its own non-derivative equity instruments. Also, for those purposes the entity’s own equity instruments do not include puttable financial instruments that are 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. As an exception, an instrument that meets the definition of a financial liability is classified as an equity instrument if it has all the features and meets the conditions in paragraphs 16A-16B or paragraphs 16C-16D of IAS 32. [Refer: Classes of financial instruments [domain]; Financial assets; Derivatives [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 25 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_25&doctype=Standard -URIDate 2024-03-27 + Details
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