XML 66 R53.htm IDEA: XBRL DOCUMENT
v3.22.1

Basis of Preparation and Presentation of the Consolidated Financial Statements (Details) $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2020 MXN ($) Tons | Dec. 31, 2020 USD ($) Tons | Dec. 31, 2019 MXN ($) Tons | Dec. 31, 2019 USD ($) Tons
Basis of Preparation and Presentation of the Consolidated Financial Statements (Details) [Line Items] |  |  |  |
Coke inventory (in Tons) | Tons | 136,541 | 136,541 | 136,541 | 136,541
Coke inventory, value (in Pesos) | $ 953 |  | $ 1,304 |
Average price of coke per metric tons (in Dollars) |  | $ 350 |  | $ 465.5
Bottom of range [member] |  |  |  |
Basis of Preparation and Presentation of the Consolidated Financial Statements (Details) [Line Items] |  |  |  |
Percentage range of changes in fair value or cash flows of hedging instrument | 80.00% |  |  |
Top of range [member] |  |  |  |
Basis of Preparation and Presentation of the Consolidated Financial Statements (Details) [Line Items] |  |  |  |
Percentage range of changes in fair value or cash flows of hedging instrument | 125.00% |  |  |
ICH (Holding Company) share in SimRep Corporation and Subsidiaries [Member] |  |  |  |
Basis of Preparation and Presentation of the Consolidated Financial Statements (Details) [Line Items] |  |  |  |
Percentage of equity owned | 0.59% |  |  |

X
- Definition The proportion of ownership interest in a subsidiary attributable to the entity. [Refer: Subsidiaries [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2021-01-01 -Paragraph 17 -Subparagraph b -Clause iii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=27&code=ifrs-tx-2021-en-r&anchor=para_17_b_iii&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2021-01-01 -Paragraph 16 -Subparagraph b -Clause iii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=27&code=ifrs-tx-2021-en-r&anchor=para_16_b_iii&doctype=Standard -URIDate 2021-03-24 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2021-01-01 -Paragraph 19B -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2021-en-r&anchor=para_19B_c&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_ProportionOfOwnershipInterestInSubsidiary
Namespace Prefix: | ifrs-full_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Average price of coke per metric tons. + References No definition available. + Details
Name: | simecb_AveragePriceOfCokePerMetricTons
Namespace Prefix: | simecb_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

X
- Definition Coke inventory. + References No definition available. + Details
Name: | simecb_CokeInventory
Namespace Prefix: | simecb_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Definition Coke inventory, value. + References No definition available. + Details
Name: | simecb_CokeInventoryValue
Namespace Prefix: | simecb_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Percentage range of changes in fair value or cash flows of hedging instrument. + References No definition available. + Details
Name: | simecb_PercentageRangeOfChangesInFairValueOrCashFlowsOfHedgingInstrument
Namespace Prefix: | simecb_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_BottomOfRangeMember
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: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=simecb_ICHHoldingCompanyShareInSimRepCorporationAndSubsidiariesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |