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RELATED-PARTY BALANCES AND TRANSACTIONS (Details 3) - BRL (R$) R$ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2022 | Dec. 31, 2021
IfrsStatementLineItems [Line Items] |  |
Borrowings | R$ 16,505,166 | R$ 18,680,356
Tax foreclosure | 9,562 | 12,824
Others | 402,796 | 485,933
Total | 16,917,524 | 24,893,406
Guarantees [member] |  |
IfrsStatementLineItems [Line Items] |  |
Borrowings | 13,867,929 | 15,346,375
Others | 396,780 | 479,795
Total | 14,264,709 | 21,540,463
Local Currency [Member] | Guarantees [member] |  |
IfrsStatementLineItems [Line Items] |  |
Borrowings | 2,637,237 | 3,333,981
Tax foreclosure | 9,562 | 12,824
Others | 6,016 | 6,138
Total | R$ 2,652,815 | 3,352,943
Local Currency [Member] | Guarantees [member] | Transnordestina Logistica S A [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Maturities | Up to 09/19/2056 and Indefinite |
Borrowings | R$ 2,096,291 | 2,486,926
Tax foreclosure | 9,365 | 12,627
Others | 3,853 | 3,384
Total | R$ 2,109,509 | 2,502,937
Local Currency [Member] | Guarantees [member] | Controladas Do Grupo [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Maturities | Up to 12/21/2024 and indefinite |
Borrowings |  | 771
Tax foreclosure | R$ 197 | 197
Others | 2,163 | 2,754
Total | R$ 2,360 | 3,722
Local Currency [Member] | Guarantees [member] | C S N Mineracao [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Maturities | Up to 12/21/2024 |
Borrowings | R$ 540,946 | 846,284
Total | 540,946 | 846,284
Foreign Currency [Member] | Guarantees [member] | United States of America, Dollars |  |
IfrsStatementLineItems [Line Items] |  |
Borrowings | 2,565,000 | 2,750,000
Others |  | 1,025,000
Total | 2,565,000 | 3,775,000
Foreign Currency [Member] | Guarantees [member] | Euro Member Countries, Euro |  |
IfrsStatementLineItems [Line Items] |  |
Others | 75,000 | 75,000
Total | R$ 75,000 | 75,000
Foreign Currency [Member] | Guarantees [member] | C S N Inova Ventures [Member] | United States of America, Dollars |  |
IfrsStatementLineItems [Line Items] |  |
Maturities | 01/28/2028 |
Borrowings | R$ 1,300,000 | 1,300,000
Total | R$ 1,300,000 | 1,300,000
Foreign Currency [Member] | Guarantees [member] | C S N Resources [Member] | United States of America, Dollars |  |
IfrsStatementLineItems [Line Items] |  |
Maturities | Up to 04/17/2026 |
Borrowings | R$ 1,150,000 | 1,450,000
Total | R$ 1,150,000 | 1,450,000
Foreign Currency [Member] | Guarantees [member] | C S N Cimentos [Member] | United States of America, Dollars |  |
IfrsStatementLineItems [Line Items] |  |
Maturities | Indefinite |
Borrowings | R$ 115,000 |
Others |  | 1,025,000
Total | R$ 115,000 | 1,025,000
Foreign Currency [Member] | Guarantees [member] | Lusosider Acos Planos [Member] | Euro Member Countries, Euro |  |
IfrsStatementLineItems [Line Items] |  |
Maturities | Indefinite |
Others | R$ 75,000 | 75,000
Total | R$ 75,000 | R$ 75,000

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