XML 230 R171.htm IDEA: XBRL DOCUMENT v3.23.1

RELATED-PARTY BALANCES AND TRANSACTIONS (Details Narrative) R$ / shares in Units, R$ in Thousands	1 Months Ended
	Dec. 23, 2022 BRL (R$) R$ / shares
Reserve Quantities [Line Items]
Interest rate	15.00%
Price per share | R$ / shares	R$ 0.44868615934
Vicunha Acos S A [Member]
Reserve Quantities [Line Items]
Payment of interest on equity	R$ 304,892
Rio Laco Participacoes S A [Member]
Reserve Quantities [Line Items]
Payment of interest on equity	R$ 20,508

X

- Definition

The interest rate on borrowings. [Refer: Borrowings]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 7
-IssueDate 2022-03-24
-Paragraph 7
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2022-en-r&anchor=para_7&doctype=Standard
-URIDate 2022-03-24

+ Details

Name:	ifrs-full_BorrowingsInterestRate
Namespace Prefix:	ifrs-full_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- References

No definition available.

+ Details

Name:	sid_PaymentOfInterestOnEquity
Namespace Prefix:	sid_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	sid_PricePerShare
Namespace Prefix:	sid_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	srt_ReserveQuantitiesLineItems
Namespace Prefix:	srt_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	dei_LegalEntityAxis=sid_VicunhaAcosSAMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	dei_LegalEntityAxis=sid_RioLacoParticipacoesSAMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: