INVESTMENTS IN SUBSIDIARIES AND ASSOCIATES - Schedule of summarized financial information of affiliates with significant influence (Details) - BRL (R$) R$ in Thousands |
1 Months Ended | 12 Months Ended | |||||||||
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Apr. 30, 2024 |
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2021 |
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| Disclosure of investments accounted for using equity method [line items] | |||||||||||
| Current assets | R$ 30,774,403 | R$ 28,610,189 | |||||||||
| Non-current assets held for sale | 978,788 | 2,138,165 | |||||||||
| Non-current assets | 110,491,499 | 111,255,193 | |||||||||
| Current liabilities | 17,912,834 | 16,158,805 | |||||||||
| Liabilities related to assets held for sale | 86,138 | 238,393 | |||||||||
| Non-current liabilities | 83,954,706 | 72,725,397 | |||||||||
| Revenue | 43,950,742 | 39,468,497 | R$ 39,322,786 | ||||||||
| Profits and losses from continuing operations | (8,435,641) | 4,839,325 | 2,771,029 | ||||||||
| Other comprehensive income | 250,775 | (344,957) | 993,684 | ||||||||
| Total comprehensive income for the year | (8,184,866) | 4,494,368 | 3,764,713 | ||||||||
| Equity | 39,398,362 | 50,981,180 | 48,169,399 | R$ 28,870,022 | |||||||
| Equity interest of Cosan's Investment | 10,678,566 | 17,611,369 | |||||||||
| Profit (loss) for the year | (8,161,766) | 4,884,744 | 2,820,875 | ||||||||
| Equity in earnings | 1,719,031 | 350,399 | R$ 418,897 | ||||||||
| Vale SA [Member] | |||||||||||
| Disclosure of investments accounted for using equity method [line items] | |||||||||||
| Equity | R$ 206,772,000 | 190,965,000 | |||||||||
| Cosan ownership interest | 4.15% | 4.15% | [1] | ||||||||
| Profit (loss) for the year | R$ 31,592,000 | 39,940,000 | |||||||||
| Affiliates with significant influence [member] | Vale SA [Member] | |||||||||||
| Disclosure of investments accounted for using equity method [line items] | |||||||||||
| Current assets | 83,476,000 | 71,488,000 | |||||||||
| Non-current assets held for sale | 19,041,000 | ||||||||||
| Non-current assets | 601,493,249 | 559,608,737 | |||||||||
| Current liabilities | 82,297,159 | 69,424,316 | |||||||||
| Liabilities related to assets held for sale | 2,714,000 | ||||||||||
| Non-current liabilities | 247,509,879 | 234,756,474 | |||||||||
| Revenue | 206,005,000 | 208,066,000 | |||||||||
| Profits and losses from continuing operations | 27,848,043 | 40,554 | |||||||||
| Other comprehensive income | 6,474,000 | (2,467,000) | |||||||||
| Total comprehensive income for the year | 34,322,043 | 38,087,000 | |||||||||
| Equity | R$ 338,900,211 | R$ 326,980,947 | |||||||||
| Cosan ownership interest | 4.15% | 4.90% | [2] | ||||||||
| Equity interest of Cosan's Investment | R$ 14,064,359 | R$ 16,022,066 | |||||||||
| Profit (loss) for the year | 31,592,400 | 2,189,734 | [2] | ||||||||
| Cosan's share of year | 1,311,085 | 107,297 | [2] | ||||||||
| Amortization of fair value adjustments | 107,193 | (11,222) | [2] | ||||||||
| Other equity effects | 106,050 | [2] | |||||||||
| Equity in earnings | R$ 1,524,327 | R$ 96,075 | [2] | ||||||||
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- Definition The amount of amortization of fair value adjustments for entity's share of the profit (loss) of associates accounted for using the equity method. No definition available.
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- References No definition available.
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- Definition The amount of other equity effect adjustments for entity's share of the profit (loss) of associates accounted for using the equity method. No definition available.
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- Definition The entity's share of the profit (loss) of associates accounted for using the equity method before amortization of fair value adjustments. No definition available.
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- Definition The comprehensive income from continuing operations. [Refer: Continuing operations, unless line item indicates otherwise [member]; Comprehensive income] Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The amount of assets that the entity (a) expects to realise or intends to sell or consume in its normal operating cycle; (b) holds primarily for the purpose of trading; (c) expects to realise within twelve months after the reporting period; or (d) classifies as cash or cash equivalents (as defined in IAS 7) unless the asset is restricted from being exchanged or used to settle a liability for at least twelve months after the reporting period. [Refer: Assets] Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition The amount of liabilities that: (a) the entity expects to settle in its normal operating cycle; (b) the entity holds primarily for the purpose of trading; (c) are due to be settled within twelve months after the reporting period; or (d) the entity does not have the right at the end of the reporting period to defer settlement for at least twelve months after the reporting period. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition The amount of residual interest in the assets of the entity after deducting all its liabilities. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The amount of investments accounted for using the equity method. The equity method is a method of accounting whereby the investment is initially recognised at cost and adjusted thereafter for the post-acquisition change in the investor's share of net assets of the investee. The investor's profit or loss includes its share of the profit or loss of the investee. The investor's other comprehensive income includes its share of the other comprehensive income of the investee. [Refer: At cost [member]] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The amount of liabilities included in disposal groups classified as held for sale. [Refer: Liabilities; Disposal groups classified as held for sale [member]] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The amount of assets that do not meet the definition of current assets. [Refer: Current assets] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The amount of non-current assets or disposal groups classified as held for sale or as held for distribution to owners. [Refer: Non-current assets or disposal groups classified as held for distribution to owners; Non-current assets or disposal groups classified as held for sale] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The amount of liabilities that do not meet the definition of current liabilities. [Refer: Current liabilities] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The amount of income and expense (including reclassification adjustments) that is not recognised in profit or loss as required or permitted by IFRSs. [Refer: IFRSs [member]] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The total of income less expenses from continuing and discontinued operations, excluding the components of other comprehensive income. [Refer: Other comprehensive income] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The profit (loss) from continuing operations. [Refer: Continuing operations, unless line item indicates otherwise [member]; Profit (loss)] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The proportion of ownership interest in an associate attributable to the entity. [Refer: Total for all associates [member]] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The income arising in the course of an entity's ordinary activities. Income is increases in assets, or decreases in liabilities, that result in increases in equity, other than those relating to contributions from holders of equity claims. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The entity's share of the profit (loss) of associates accounted for using the equity method. [Refer: Total for all associates [member]; Investments accounted for using equity method; Profit (loss)] Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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