CONTRACT LIABILITY (ADVANCES FROM CUSTOMERS) (Details) - BRL (R$) R$ in Thousands |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| IfrsStatementLineItems [Line Items] | ||
| Contract liabilities | R$ 13,374,703 | R$ 13,769,589 |
| Current | 4,347,937 | 3,648,639 |
| Non-current | 9,026,766 | 10,120,950 |
| Iron Ore [Member] | ||
| IfrsStatementLineItems [Line Items] | ||
| Contract liabilities | 11,597,794 | 11,625,627 |
| Others Liabilities [Member] | ||
| IfrsStatementLineItems [Line Items] | ||
| Contract liabilities | R$ 1,776,909 | R$ 2,143,962 |