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SEGMENT INFORMATION (Details) - BRL (R$) R$ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
IfrsStatementLineItems [Line Items] |  |  |
Total | R$ 45,437,950 | R$ 44,362,120 | R$ 47,912,039
Cost of sales and services | (33,475,189) | (31,054,016) | (25,837,475)
Gross profit | 11,962,761 | 13,308,104 | 22,074,564
General and administrative expenses | (4,489,983) | (3,249,937) | (2,959,446)
Other operating (income) expenses, net | (2,637,160) | (2,654,622) | 1,242,340
Equity in results of affiliated companies | 351,131 | 237,917 | 182,504
Operating result before Financial Income and Taxes | 5,186,749 | 7,641,462 | 20,539,962
Country Of Asia [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Total | 16,541,638 | 10,341,232 | 13,685,991
Country Of North America [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Total | 1,671,773 | 2,018,046 | 2,275,612
Country Of Latin America [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Total | 132,219 | 382,128 | 355,912
Country Of Europe [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Total | 5,013,780 | 7,662,107 | 8,360,694
Country Of Others [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Total |  | 1,066 |
Domestic Market [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Total | 22,078,540 | 23,957,541 | 23,233,830
Foreign Market [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Total | 23,359,410 | 20,404,579 | 24,678,209
Steel [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Total | 22,717,486 | 29,341,011 | 30,091,448
Cost of sales and services | (21,008,013) | (23,256,319) | (20,081,043)
Gross profit | 1,709,473 | 6,084,692 | 10,010,405
General and administrative expenses | (1,218,767) | (1,314,352) | (1,158,748)
Other operating (income) expenses, net | (1,065,188) | (777,976) | (405,018)
Operating result before Financial Income and Taxes | (574,482) | 3,992,364 | 8,446,639
Steel [Member] | Country Of North America [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Total | 1,671,773 | 2,018,046 | 2,275,612
Steel [Member] | Country Of Latin America [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Total | 132,219 | 382,128 | 355,912
Steel [Member] | Country Of Europe [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Total | 4,397,229 | 6,351,536 | 6,059,606
Steel [Member] | Country Of Others [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Total |  | 1,066 |
Steel [Member] | Domestic Market [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Total | 16,516,265 | 20,588,235 | 21,400,318
Steel [Member] | Foreign Market [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Total | 6,201,221 | 8,752,776 | 8,691,130
Mining [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Total | 17,135,648 | 12,525,131 | 18,043,386
Cost of sales and services | (9,931,881) | (7,105,424) | (7,705,835)
Gross profit | 7,203,767 | 5,419,707 | 10,337,551
General and administrative expenses | (421,218) | (352,152) | (351,371)
Other operating (income) expenses, net | (974,590) | (449,871) | (287,744)
Operating result before Financial Income and Taxes | 5,807,959 | 4,617,684 | 9,698,436
Mining [Member] | Country Of Asia [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Total | 14,714,924 | 9,514,509 | 12,627,913
Mining [Member] | Country Of Europe [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Total | 616,551 | 1,310,571 | 2,301,088
Mining [Member] | Domestic Market [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Total | 1,804,173 | 1,700,051 | 3,114,385
Mining [Member] | Foreign Market [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Total | 15,331,475 | 10,825,080 | 14,929,001
Logistics Port [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Total | 265,949 | 307,999 | 311,040
Cost of sales and services | (248,938) | (220,491) | (220,494)
Gross profit | 17,011 | 87,508 | 90,546
General and administrative expenses | (10,558) | (32,976) | (33,853)
Other operating (income) expenses, net | (675) | (14,353) | (8,290)
Operating result before Financial Income and Taxes | 5,778 | 40,179 | 48,403
Logistics Port [Member] | Domestic Market [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Total | 265,949 | 307,999 | 311,040
Railroads [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Total | 2,644,949 | 2,311,754 | 1,839,307
Cost of sales and services | (1,492,728) | (1,507,028) | (1,266,112)
Gross profit | 1,152,221 | 804,726 | 573,195
General and administrative expenses | (218,878) | (153,294) | (135,091)
Other operating (income) expenses, net | 10,390 | 33,927 | 58,253
Operating result before Financial Income and Taxes | 943,733 | 685,359 | 496,357
Railroads [Member] | Domestic Market [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Total | 2,644,949 | 2,311,754 | 1,839,307
Energy [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Total | 545,735 | 293,035 | 222,785
Cost of sales and services | (441,281) | (287,340) | (146,349)
Gross profit | 104,454 | 5,695 | 76,436
General and administrative expenses | (57,854) | (43,786) | (32,083)
Other operating (income) expenses, net | 188,866 | 39,376 | 41,337
Operating result before Financial Income and Taxes | 235,466 | 1,285 | 85,690
Energy [Member] | Domestic Market [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Total | 545,735 | 293,035 | 222,785
Cement [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Total | 4,510,553 | 2,819,551 | 1,430,150
Cost of sales and services | (3,644,362) | (1,974,415) | (892,900)
Gross profit | 866,191 | 845,136 | 537,250
General and administrative expenses | (557,585) | (386,230) | (190,986)
Other operating (income) expenses, net | (253,931) | (105,018) | (63,631)
Operating result before Financial Income and Taxes | 54,675 | 353,888 | 282,633
Cement [Member] | Domestic Market [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Total | 4,510,553 | 2,819,551 | 1,430,150
Corporate Expenses Elimination [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Total | (2,382,370) | (3,236,361) | (4,026,077)
Cost of sales and services | 3,292,014 | 3,297,001 | 4,475,259
Gross profit | 909,644 | 60,640 | 449,182
General and administrative expenses | (2,005,123) | (967,147) | (1,057,314)
Other operating (income) expenses, net | (542,032) | (1,380,707) | 1,907,433
Equity in results of affiliated companies | 351,131 | 237,917 | 182,504
Operating result before Financial Income and Taxes | (1,286,380) | (2,049,297) | 1,481,805
Corporate Expenses Elimination [Member] | Country Of Asia [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Total | 1,826,714 | 826,723 | 1,058,078
Corporate Expenses Elimination [Member] | Domestic Market [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Total | (4,209,084) | (4,063,084) | (5,084,155)
Corporate Expenses Elimination [Member] | Foreign Market [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Total | R$ 1,826,714 | R$ 826,723 | R$ 1,058,078

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