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BUSINESS COMBINATION (Details 1) - Metalgrafica Lguacu S. A [Member] | Mar. 31, 2022 shares
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IfrsStatementLineItems [Line Items] |
Discounted Cash Flow | 59,353
Discounted residual value | 33,973
Enterprise value | 93,326
Indebtdness net | (109,133)
Non-operating assets/liabilities | 16,070
Equity value | 263

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

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

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

X
- References No definition available. + Details
Name: | sid_EquityValue
Namespace Prefix: | sid_
Data Type: | xbrli:sharesItemType
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Period Type: | instant

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- References No definition available. + Details
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Namespace Prefix: | sid_
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Balance Type: | na
Period Type: | instant

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- Details
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