XML 67 R164.htm IDEA: XBRL DOCUMENT
v3.20.1

22 EXPENSES BY NATURE (Details) - BRL (R$) R$ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
ExpensesByNatureLineItems [Line Items] |  |  |
Expense, net | R$ (20,117,134) | R$ (18,863,368) | R$ (15,827,089)
Classified as: |  |  |
Cost of sales | (17,263,264) | (16,105,657) | (13,596,141)
Selling expenses | (2,342,805) | (2,263,688) | (1,815,107)
General and administrative expenses | (511,065) | (494,023) | (415,841)
Total | (20,117,134) | (18,863,368) | (15,827,089)
Raw Materials and Inputs [Member] |  |  |
ExpensesByNatureLineItems [Line Items] |  |  |
Expense, net | (7,287,933) | (6,759,275) | (5,404,801)
Labor Cost [Member] |  |  |
ExpensesByNatureLineItems [Line Items] |  |  |
Expense, net | (2,807,280) | (2,743,460) | (2,400,579)
Supplies [Member] |  |  |
ExpensesByNatureLineItems [Line Items] |  |  |
Expense, net | (1,981,547) | (1,782,576) | (1,451,437)
Maintenance Cost Services and Materials [Member] |  |  |
ExpensesByNatureLineItems [Line Items] |  |  |
Expense, net | (1,340,135) | (1,326,894) | (1,145,974)
Outsourcing Services [Member] |  |  |
ExpensesByNatureLineItems [Line Items] |  |  |
Expense, net | (2,392,626) | (2,368,387) | (2,040,057)
Freights [Member] |  |  |
ExpensesByNatureLineItems [Line Items] |  |  |
Expense, net | (334,509) | (109,756) | (106,026)
Distribution Freights [Member] |  |  |
ExpensesByNatureLineItems [Line Items] |  |  |
Expense, net | (1,787,979) | (1,692,785) | (1,278,356)
Depreciation Amortization and Depletion [Member] |  |  |
ExpensesByNatureLineItems [Line Items] |  |  |
Expense, net | (1,421,704) | (1,175,107) | (1,408,765)
Others [Member] |  |  |
ExpensesByNatureLineItems [Line Items] |  |  |
Expense, net | R$ (763,421) | R$ (905,128) | R$ (591,094)

X
- Definition The amount of expenses that the entity classifies as being administrative. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 26 -IssueDate 2019-01-01 -Paragraph 35 -Subparagraph b -Clause vi -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=26&code=ifrs-tx-2019-en-r&anchor=para_35_b_vi&doctype=Standard -URIDate 2019-03-27 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 103 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_103&doctype=Standard -URIDate 2019-03-27 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 99 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_99&doctype=Standard -URIDate 2019-03-27 + Details
Name: | ifrs-full_AdministrativeExpense
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of costs relating to expenses directly or indirectly attributed to the goods or services sold, which may include, but are not limited to, costs previously included in the measurement of inventory that has now been sold, unallocated production overheads and abnormal amounts of production costs of inventories. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 99 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_99&doctype=Standard -URIDate 2019-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 103 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_103&doctype=Standard -URIDate 2019-03-27 + Details
Name: | ifrs-full_CostOfSales
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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

X
- Definition The amount of operating expense excluding the cost of sales. [Refer: Cost of sales] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 85 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_85&doctype=Standard -URIDate 2019-03-27 + Details
Name: | ifrs-full_OperatingExpenseExcludingCostOfSales
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of expense relating to the marketing and selling of goods or services. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 85 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_85&doctype=Standard -URIDate 2019-03-27 + Details
Name: | ifrs-full_SalesAndMarketingExpense
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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

X
- Definition Amount refers to the miscellaneous other operating expense1. + References No definition available. + Details
Name: | sid_MiscellaneousOtherOperatingExpense1
Namespace Prefix: | sid_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | sid_ExpensesByNatureAxis=sid_RawMaterialsAndInputsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | sid_ExpensesByNatureAxis=sid_LaborCostMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | sid_ExpensesByNatureAxis=sid_SuppliesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | sid_ExpensesByNatureAxis=sid_MaintenanceCostServicesAndMaterialsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | sid_ExpensesByNatureAxis=sid_OutsourcingServicesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | sid_ExpensesByNatureAxis=sid_FreightsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | sid_ExpensesByNatureAxis=sid_DistributionFreightsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | sid_ExpensesByNatureAxis=sid_DepreciationAmortizationAndDepletionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | sid_ExpensesByNatureAxis=sid_OthersMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |