v3.26.1
LEASE LIABILITIES (Details Narrative)
12 Months Ended
Dec. 31, 2025
Railway Operation [Member]
IfrsStatementLineItems [Line Items]
Lease agreement remaining term
2 years
Steel Segment [Member]
IfrsStatementLineItems [Line Items]
Lease agreement remaining term
17 years
Bottom of range [member] | Cargo Terminal T E C O N [Member]
IfrsStatementLineItems [Line Items]
Lease agreement remaining term
22 years
Bottom of range [member] | Operational Facilities [Member]
IfrsStatementLineItems [Line Items]
Lease agreement remaining term
1 year
Top of range [member] | Cargo Terminal T E C O N [Member]
IfrsStatementLineItems [Line Items]
Lease agreement remaining term
25 years
Top of range [member] | Operational Facilities [Member]
IfrsStatementLineItems [Line Items]
Lease agreement remaining term
19 years
X
- References
No definition available.
+ Details
Name:
sid_IfrsStatementLineItems
Namespace Prefix:
sid_
Data Type:
xbrli:stringItemType
Balance Type:
na
Period Type:
duration
X
- References
No definition available.
+ Details
Name:
sid_LeaseAgreementRemainingTerm
Namespace Prefix:
sid_
Data Type:
xbrli:durationItemType
Balance Type:
na
Period Type:
duration
X
- Details
Name:
ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=sid_RailwayOperationMember
Namespace Prefix:
Data Type:
na
Balance Type:
Period Type:
X
- Details
Name:
ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=sid_SteelSegmentMember
Namespace Prefix:
Data Type:
na
Balance Type:
Period Type:
X
- Details
Name:
ifrs-full_RangeAxis=ifrs-full_BottomOfRangeMember
Namespace Prefix:
Data Type:
na
Balance Type:
Period Type:
X
- Details
Name:
ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=sid_CargoTerminalTECONMember
Namespace Prefix:
Data Type:
na
Balance Type:
Period Type:
X
- Details
Name:
ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=sid_OperationalFacilitiesMember
Namespace Prefix:
Data Type:
na
Balance Type:
Period Type:
X
- Details
Name:
ifrs-full_RangeAxis=ifrs-full_TopOfRangeMember
Namespace Prefix:
Data Type:
na
Balance Type:
Period Type: