XML 154 R121.htm IDEA: XBRL DOCUMENT
v3.24.1.u1

BORROWINGS AND FINANCING (Details) - BRL (R$) R$ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
IfrsStatementLineItems [Line Items] |  |
Borrowings and financing, current | R$ 7,701,796 | R$ 5,269,952
Borrowings and financing, noncurrent | 37,772,116 | 36,170,996
Transaction costs and issue premiums, current | (88,429) | (76,316)
Transaction costs and issue premiums, noncurrent | (526,408) | (445,890)
Borrowings and financing and transaction costs, current | 7,613,367 | 5,193,636
Borrowings and financing and transaction costs, noncurrent | 37,245,708 | 35,725,106
Foreign Debt [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Borrowings and financing, current | 2,956,075 | 2,823,112
Borrowings and financing, noncurrent | 24,506,849 | 22,430,945
Foreign Debt [Member] | Floating Rates [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Borrowings and financing, current | 548,230 | 1,571,208
Borrowings and financing, noncurrent | 6,576,696 | 5,474,359
Foreign Debt [Member] | Fixed Rates [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Borrowings and financing, current | 2,079,972 | 1,189,717
Borrowings and financing, noncurrent | 17,815,926 | 16,790,284
Foreign Debt [Member] | Fixed Interest In E U R [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Borrowings and financing, current | 327,873 | 62,187
Borrowings and financing, noncurrent | 114,227 | 166,302
Debt Agreements In Brazil [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Borrowings and financing, current | 4,745,721 | 2,446,840
Borrowings and financing, noncurrent | 13,265,267 | 13,740,051
Debt Agreements In Brazil [Member] | Floating Rate Securities [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Borrowings and financing, current | 4,745,721 | 2,446,840
Borrowings and financing, noncurrent | R$ 13,265,267 | R$ 13,740,051

X
- Definition The non-current portion of non-current borrowings. [Refer: Borrowings] + 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
Name: | ifrs-full_LongtermBorrowings
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount of current borrowings. [Refer: Borrowings] + 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
Name: | ifrs-full_ShorttermBorrowings
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- References No definition available. + Details
Name: | sid_BorrowingCostsRecognisedAsExpenseCurrent
Namespace Prefix: | sid_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | sid_BorrowingCostsRecognisedAsExpenseNoncurent
Namespace Prefix: | sid_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- References No definition available. + Details
Name: | sid_GrossLongtermBorrowings
Namespace Prefix: | sid_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- References No definition available. + Details
Name: | sid_GrossShorttermBorrowings
Namespace Prefix: | sid_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- References No definition available. + Details
Name: | sid_IfrsStatementLineItems
Namespace Prefix: | sid_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=sid_ForeignDebtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfRisksAxis=sid_FloatingRatesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfRisksAxis=sid_FixedRatesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfRisksAxis=sid_FixedInterestInEURMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=sid_DebtAgreementsInBrazilMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfRisksAxis=sid_FloatingRateSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |