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BASIS OF CONSOLIDATION AND INVESTMENTS (Details 1) - BRL (R$) R$ in Thousands | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
IfrsStatementLineItems [Line Items] |  |  |  |
Investments, opening balance | R$ 4,890,621 |  |  |
Capital increase | 11,037 |  |  |
Dividends | (163,523) |  |  |
Equity Income | 431,562 |  |  |
Comprehensive income | 175 |  |  |
Others | (60,578) |  |  |
Investments, final balance | 5,109,294 |  |  |
Equity interests | 5,237,177 | R$ 5,060,002 |  |
Investment Property | 205,954 | 159,080 | R$ 162,181 | R$ 162,181
Total investments in the asset | 5,443,131 | R$ 5,219,082 |  |
M R S Logistica [Member] |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |
Investments, opening balance | 2,054,898 |  |  |
Dividends | (106,747) |  |  |
Equity Income | 449,462 |  |  |
Comprehensive income | 175 |  |  |
Others | (16,181) |  |  |
Investments, final balance | 2,381,607 |  |  |
Fair Value M R S [Member] |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |
Investments, opening balance | 480,622 |  |  |
Investments, final balance | 480,622 |  |  |
Fair Value M R S Amortization [Member] |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |
Investments, opening balance | (82,225) |  |  |
Equity Income | (11,746) |  |  |
Investments, final balance | (93,971) |  |  |
Transnordestina Logistica S A [Member] |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |
Investments, opening balance | 1,184,514 |  |  |
Equity Income | (23,568) |  |  |
Investments, final balance | 1,160,946 |  |  |
Fair Value Transnordestina [Member] |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |
Investments, opening balance | 659,106 |  |  |
Investments, final balance | 659,106 |  |  |
Arvedi Metalferdo Brasil [Member] |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |
Investments, opening balance | 25,782 |  |  |
Capital increase | 11,037 |  |  |
Equity Income | (1,332) |  |  |
Investments, final balance | 35,487 |  |  |
Equimac S A [Member] |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |
Investments, opening balance | 18,482 |  |  |
Equity Income | 5,311 |  |  |
Investments, final balance | 23,793 |  |  |
Indirect Interest In Affiliates C E E E G [Member] |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |
Investments, opening balance | 216,307 |  |  |
Dividends | (56,776) |  |  |
Equity Income | 50,757 |  |  |
Others | (44,397) |  |  |
Investments, final balance | 165,891 |  |  |
Fair Value Indirect Participation C E E E G [Member] |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |
Investments, opening balance | 359,024 |  |  |
Equity Income | (39,315) |  |  |
Investments, final balance | 319,709 |  |  |
Fair Value Amortization Indirect Participation C E E E G [Member] |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |
Investments, opening balance | (25,889) |  |  |
Equity Income | 1,993 |  |  |
Investments, final balance | (23,896) |  |  |
Equity Interests Evaluated By The Cost Method [Member] |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |
Investments, opening balance | 41,093 |  |  |
Capital increase | 9,000 |  |  |
Investments, final balance | 50,093 |  |  |
Investments At Fair Value Through Profit Or Loss [Member] |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |
Investments, opening balance | 94,700 |  |  |
Others | (15,963) |  |  |
Investments, final balance | 78,737 |  |  |
Others [member] |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |
Investments, opening balance | 33,588 |  |  |
Others | (34,535) |  |  |
Investments, final balance | (947) |  |  |
Other Participations [Member] |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |
Investments, opening balance | 169,381 |  |  |
Capital increase | 9,000 |  |  |
Others | (50,498) |  |  |
Investments, final balance | 127,883 |  |  |
Total Shareholdings [Member] |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |
Investments, opening balance | 5,060,002 |  |  |
Capital increase | 20,037 |  |  |
Dividends | (163,523) |  |  |
Equity Income | 431,562 |  |  |
Comprehensive income | 175 |  |  |
Others | (111,076) |  |  |
Investments, final balance | R$ 5,237,177 |  |  |

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