XML 233 R174.htm IDEA: XBRL DOCUMENT
v3.23.1

SHAREHOLDERS' EQUITY (Details 2) - BRL (R$) R$ / shares in Units, R$ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Shareholders Equity |  |  |
Profit for the year | R$ 1,554,060 | R$ 12,258,628 | R$ 3,794,295
Weighted average number of shares | 1,327,028,614 | 1,376,362,149 | 1,380,114,547
Basic and diluted earnings per share | R$ 1.17108 | R$ 8.90654 | R$ 2.74926

X
- Definition The profit (loss) from continuing and discontinued operations attributable to owners of the parent. [Refer: Profit (loss)] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 81B -Subparagraph a -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_81B_a_ii&doctype=Standard -URIDate 2022-03-24 + Details
Name: | ifrs-full_ProfitLossAttributableToOwnersOfParent
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | sid_BasicAndDilutedEarningsLossPerShare
Namespace Prefix: | sid_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | duration

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

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