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FINANCIAL INSTRUMENTS AND RISK MANAGEMENT - Derivative financial instruments for debt protection (Details) - BRL (R$) R$ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Disclosure of detailed information about financial instruments |  |
Asset | R$ 2,236,755 | R$ 373,606
Liability | 1,177,935 | 657,514
Net financial result | (1,566,482) | (908,381)
Bonds |  |
Disclosure of detailed information about financial instruments |  |
Asset | 2,152,316 |
Liability | 1,177,935 | 657,514
Long term commitments |  |
Disclosure of detailed information about financial instruments |  |
Asset | 84,439 |
Swap - US$ vs CDI - Maturity 01/08/2025 |  |
Disclosure of detailed information about financial instruments |  |
Net financial result | 109,356 |
Swap - US$ vs CDI - Maturity 01/08/2025 | Bonds |  |
Disclosure of detailed information about financial instruments |  |
Notional amount | 493,000 |
Asset | 118,733 |
Swap - US$ vs CDI - Maturity 02/04/2025 |  |
Disclosure of detailed information about financial instruments |  |
Net financial result | 560,392 | (275,755)
Swap - US$ vs CDI - Maturity 02/04/2025 | Bonds |  |
Disclosure of detailed information about financial instruments |  |
Notional amount | 2,535,300 |
Asset | 500,998 |
Liability |  | 220,165
Swap - US$ vs CDI - Maturity 08/29/2025 |  |
Disclosure of detailed information about financial instruments |  |
Net financial result | 52,930 | (8,610)
Swap - US$ vs CDI - Maturity 08/29/2025 | Bonds |  |
Disclosure of detailed information about financial instruments |  |
Notional amount | 219,150 |
Asset | 54,290 |
Liability |  | 8,611
Swap - US$ vs CDI - Maturity 12/9/2025 |  |
Disclosure of detailed information about financial instruments |  |
Net financial result | 13,170 |
Swap - US$ vs CDI - Maturity 12/9/2025 | Bonds |  |
Disclosure of detailed information about financial instruments |  |
Notional amount | 500,000 |
Asset | 13,170 |
Swap - EUR vs CDI - Maturity 12/23/2025 |  |
Disclosure of detailed information about financial instruments |  |
Net financial result | 5,245 |
Swap - EUR vs CDI - Maturity 12/23/2025 | Bonds |  |
Disclosure of detailed information about financial instruments |  |
Notional amount | 500,000 |
Asset | 5,245 |
Swap - US$ vs CDI - Maturity 18/06/2025 |  |
Disclosure of detailed information about financial instruments |  |
Net financial result | 68,485 |
Swap - US$ vs CDI - Maturity 06/20/2029 |  |
Disclosure of detailed information about financial instruments |  |
Net financial result | 41,141 | (6,373)
Swap - US$ vs CDI - Maturity 06/20/2029 | Bonds |  |
Disclosure of detailed information about financial instruments |  |
Notional amount | 232,873 |
Asset | 47,415 |
Liability | 7,603 | 3,601
Swap - US$ vs CDI - Maturity 02/04/2030 |  |
Disclosure of detailed information about financial instruments |  |
Net financial result | 634,410 | (512,050)
Swap - US$ vs CDI - Maturity 02/04/2030 | Bonds |  |
Disclosure of detailed information about financial instruments |  |
Notional amount | 3,782,873 |
Asset | 715,544 |
Liability | 235,194 | 425,137
Swap - IPCA vs CDI - Maturity 09/15/2034 |  |
Disclosure of detailed information about financial instruments |  |
Net financial result | (89,867) |
Swap - IPCA vs CDI - Maturity 09/15/2034 | Bonds |  |
Disclosure of detailed information about financial instruments |  |
Notional amount | 1,630,000 |
Liability | 89,867 |
Swap - US$ vs CDI - Maturity 12/04/2034 |  |
Disclosure of detailed information about financial instruments |  |
Net financial result | 81,392 |
Swap - US$ vs CDI - Maturity 12/04/2034 | Bonds |  |
Disclosure of detailed information about financial instruments |  |
Notional amount | 2,378,400 |
Asset | 266,397 |
Liability | 185,005 |
Swap - US$ vs CDI - Maturity 01/11/2035 |  |
Disclosure of detailed information about financial instruments |  |
Net financial result | (28,606) |
Swap - US$ vs CDI - Maturity 01/11/2035 | Bonds |  |
Disclosure of detailed information about financial instruments |  |
Notional amount | 4,229,025 |
Asset | 287,736 |
Liability | 316,342 |
Swap - IPCA vs CDI - Maturity 06/15/2031 |  |
Disclosure of detailed information about financial instruments |  |
Net financial result | (296,800) |
Swap - IPCA vs CDI - Maturity 06/15/2031 | Bonds |  |
Disclosure of detailed information about financial instruments |  |
Notional amount | 4,900,000 |
Asset | 142,788 |
Liability | 343,924 |
NDF - US$ - Maturity 04/30/2025 | Long term commitments |  |
Disclosure of detailed information about financial instruments |  |
Notional amount | 67,113 |
Asset | 224 |
NDF - US$ and primary aluminum- Maturity 12/02/2025 | Long term commitments |  |
Disclosure of detailed information about financial instruments |  |
Notional amount | 1,342 |
Asset | 274 |
NDF - US$ and primary aluminum- Maturity 08/03/2026 | Long term commitments |  |
Disclosure of detailed information about financial instruments |  |
Notional amount | 156,583 |
Asset | 30,129 |
NDF - US$ and primary aluminum- Maturity 09/01/2026 | Long term commitments |  |
Disclosure of detailed information about financial instruments |  |
Notional amount | 60,175 |
Asset | 11,780 |
NDF - US$ and primary aluminum- Maturity 09/02/2026 | Long term commitments |  |
Disclosure of detailed information about financial instruments |  |
Notional amount | 210,668 |
Asset | 42,032 |
Bonds - Maturity 02/04/2025 |  |
Disclosure of detailed information about financial instruments |  |
Net financial result | (765,876) | 49,395
Bonds - Maturity 02/04/2030 |  |
Disclosure of detailed information about financial instruments |  |
Net financial result | (1,068,243) | (129,796)
Bonds - Maturity 01/11/2035 |  |
Disclosure of detailed information about financial instruments |  |
Net financial result | (95,074) |
Credit agreement - Maturity 01/08/2025 |  |
Disclosure of detailed information about financial instruments |  |
Net financial result | (165,382) |
Credit agreement - Maturity 08/29/2025 |  |
Disclosure of detailed information about financial instruments |  |
Net financial result | (68,059) | (15,503)
Credit agreement - Maturity 12/09/2025 |  |
Disclosure of detailed information about financial instruments |  |
Net financial result | (17,497) |
Credit agreement - Maturity 06/18/2026 |  |
Disclosure of detailed information about financial instruments |  |
Net financial result | (257,569) |
CGT ESUL EURO - Maturity 12/23/2025 |  |
Disclosure of detailed information about financial instruments |  |
Net financial result | (7,838) |
KFW - Maturity 06/20/2029 |  |
Disclosure of detailed information about financial instruments |  |
Net financial result | (59,203) | R$ (9,689)
Debentures - Maturity 06/15/2031 |  |
Disclosure of detailed information about financial instruments |  |
Net financial result | (53,596) |
Debentures - Maturity 09/15/2034 |  |
Disclosure of detailed information about financial instruments |  |
Net financial result | 46,824 |
SPA (SACE) - Maturity 09/15/2034 |  |
Disclosure of detailed information about financial instruments |  |
Net financial result | R$ (206,217) |

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- Definition The amount of financial liabilities classified as derivative instruments. [Refer: Financial assets; Derivatives [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 55 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_55&doctype=Standard -URIDate 2023-03-23 + Details
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