XML 144 R129.htm IDEA: XBRL DOCUMENT
v3.19.1

CONTINGENCIES, COMMITMENTS AND RESTRICTIONS ON THE DISTRIBUTION OF PROFITS (Commitments) (Details) m³ in Millions |  |  |  |  |  | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2018 USD ($) MW | May 25, 2018 USD ($) | Apr. 24, 2017 MW | Mar. 31, 2008 electrical_plant | Dec. 20, 2000 electrical_plant | Dec. 31, 2018 USD ($) BTU t MW m³ | Dec. 31, 2006 distributor MW | Jun. 30, 2018 USD ($) | Dec. 31, 2017 USD ($)
Disclosure of contingent liabilities [line items] |  |  |  |  |  |  |  |  |
Number of electrical plants terminated | electrical_plant |  |  |  | 2 |  |  |  |  |
Borrowings | $ 2,036,957,000 |  |  |  |  | $ 2,036,957,000 |  |  | $ 3,221,907,000
Dividend payables | $ 2,900,000,000 |  |  |  |  | $ 2,900,000,000 |  |  |
Techgen S.A. de C.V. |  |  |  |  |  |  |  |  |
Disclosure of contingent liabilities [line items] |  |  |  |  |  |  |  |  |
Long-term contract for purchase of electric power, term |  |  | 25 years |  |  |  |  |  |
Long-term contract for purchase of electric power, electrical demand | MW |  |  | 699 |  |  |  |  |  |
Percentage of electricity needs supplied |  |  | 78.00% |  |  |  |  |  |
Guarantor obligations, outstanding |  | $ 60,800,000 |  |  |  |  |  |  |
Guarantor obligations, percentage of amount payable if counterparty terminates agreement |  | 78.00% |  |  |  |  |  |  |
Ternium Mexico S.A. de C.V. |  |  |  |  |  |  |  |  |
Disclosure of contingent liabilities [line items] |  |  |  |  |  |  |  |  |
Number of electrical plants | electrical_plant |  |  |  |  | 4 |  |  |  |
Iberdrola Energia Monterey, S.A. de C.V. |  |  |  |  |  |  |  |  |
Disclosure of contingent liabilities [line items] |  |  |  |  |  |  |  |  |
Long-term contract for purchase of electric power, term |  |  |  |  | 25 years |  |  |  |
Long-term contract for purchase of electric power, electrical demand | MW | 51.7 |  |  |  |  | 111.2 |  |  |
Percentage of electricity needs supplied |  |  |  |  |  | 25.00% |  |  |
Long-term contract for purchase of electric power, credit (per megawatt) |  |  |  |  |  | $ 750,000 |  |  |
Long-term contract for purchase of electric power, credit |  |  |  |  |  | 83,400,000 |  |  |
Long-term contract for purchase of electric power, discount |  |  |  |  |  | $ 15,000,000 |  |  |
Short-term contract for purchase of electric power, length that rates are similar to previous term |  |  |  |  |  | 7 months |  |  |
Short-term contract for purchase of electric power, percentage discount on contract |  |  |  |  |  | 2.50% |  |  |
Gas Industrial de Monterrey, S.A. de C.V. |  |  |  |  |  |  |  |  |
Disclosure of contingent liabilities [line items] |  |  |  |  |  |  |  |  |
Guarantor obligations, borrowing outstanding | $ 25,000,000 |  |  |  |  | $ 25,000,000 |  |  |
Guarantor obligations, current carrying value | 16,700,000 |  |  |  |  | 16,700,000 |  |  |
Kinder Morgan Gas |  |  |  |  |  |  |  |  |
Disclosure of contingent liabilities [line items] |  |  |  |  |  |  |  |  |
Guarantor obligations, borrowing outstanding | 250,000,000 |  |  |  |  | $ 250,000,000 |  |  |
Long-term contract for purchase of natural gas transportation, capacity | BTU |  |  |  |  |  | 150,000,000,000 |  |  |
Ternium Brasil Ltda. |  |  |  |  |  |  |  |  |
Disclosure of contingent liabilities [line items] |  |  |  |  |  |  |  |  |
Long-term contract for purchase of electric power, term |  |  |  |  |  |  | 15 years |  |
Long-term contract for purchase of electric power, electrical demand | MW |  |  |  |  |  |  | 200 |  |
Number of distributors | distributor |  |  |  |  |  |  | 24 |  |
GE Global Parts and Products GMBH, General Electric International Inc. and Alstom Energia Térmica e Indústria Ltda. |  |  |  |  |  |  |  |  |
Disclosure of contingent liabilities [line items] |  |  |  |  |  |  |  |  |
Long-term purchase commitment, amount |  |  |  |  |  | $ 129,800,000 |  |  |
Long-term purchase commitment, period for maintenance services of turbines |  |  |  |  |  | 20 years |  |  |
Primetals Technologies Brazil Ltda. |  |  |  |  |  |  |  |  |
Disclosure of contingent liabilities [line items] |  |  |  |  |  |  |  |  |
Long-term purchase commitment, amount |  |  |  |  |  | $ 223,500,000 |  |  |
Air Liquide Brasil Ltda., AirSteel Ltda., White Martins Gases Industriais Ltda., White Martins Steel Ltda. and ThyssenKrupp MinEnergy GmbH |  |  |  |  |  |  |  |  |
Disclosure of contingent liabilities [line items] |  |  |  |  |  |  |  |  |
Long-term purchase commitment, amount | 343,300,000 |  |  |  |  |  |  |  |
Companhia Distribuidora de Gás do Rio de Janeiro |  |  |  |  |  |  |  |  |
Disclosure of contingent liabilities [line items] |  |  |  |  |  |  |  |  |
Long-term purchase commitment, minimum percentage of volume required |  |  |  |  |  | 85.00% |  |  |
Long-term purchase commitment, amount |  |  |  |  |  | $ 33,900,000 |  |  |
Long-term purchase commitment, volume | m³ |  |  |  |  |  | 61.3 |  |  |
Stahllog Solucao Logisticas Ltda. |  |  |  |  |  |  |  |  |
Disclosure of contingent liabilities [line items] |  |  |  |  |  |  |  |  |
Long-term purchase commitment, amount | 26,800,000 |  |  |  |  |  |  |  |
Public utilities inventory, fuel | Air Liquide Argentina S.A. |  |  |  |  |  |  |  |  |
Disclosure of contingent liabilities [line items] |  |  |  |  |  |  |  |  |
Long-term purchase commitment, amount |  |  |  |  |  | $ 21,900,000 |  |  |
Iron Ore, Pellets and Iron Ore Fines | Ternium Argentina S.A. |  |  |  |  |  |  |  |  |
Disclosure of contingent liabilities [line items] |  |  |  |  |  |  |  |  |
Long-term purchase commitment, minimum percentage of volume required |  |  |  |  |  | 80.00% |  |  |
Long-term purchase commitment, amount |  |  |  |  |  | $ 764,000,000 |  |  |
Iron Ore, Pellets and Iron Ore Fines | Vale S.A. |  |  |  |  |  |  |  |  |
Disclosure of contingent liabilities [line items] |  |  |  |  |  |  |  |  |
Long-term purchase commitment, total purchased volume | t |  |  |  |  |  | 8,000,000 |  |  |
Freight Services |  |  |  |  |  |  |  |  |
Disclosure of contingent liabilities [line items] |  |  |  |  |  |  |  |  |
Long-term purchase commitment, minimum quantity required (per month) | t |  |  |  |  |  | 200,000 |  |  |
Long-term purchase commitment, quantity required | t |  |  |  |  |  | 1,200,000 |  |  |
Freight Services | Ferrocarril Mexicano, S. A. de C. V. |  |  |  |  |  |  |  |  |
Disclosure of contingent liabilities [line items] |  |  |  |  |  |  |  |  |
Long-term purchase commitment, period |  |  |  |  |  | 5 years |  |  |
Long-term purchase commitment, period to make investments to improve loading and unloading of gondolas |  |  |  |  |  | 36 months |  |  |
Ternium S.A. | Kinder Morgan Gas |  |  |  |  |  |  |  |  |
Disclosure of contingent liabilities [line items] |  |  |  |  |  |  |  |  |
Guarantor obligations, borrowing outstanding | 120,000,000 |  |  |  |  | $ 120,000,000 |  |  |
Guarantor obligations, percentage |  |  |  |  |  | 48.00% |  |  |
Techgen S.A. de C.V. | Syndicated Loan |  |  |  |  |  |  |  |  |
Disclosure of contingent liabilities [line items] |  |  |  |  |  |  |  |  |
Borrowings | 800,000,000 |  |  |  |  | $ 800,000,000 |  |  |
Borrowings outstanding | 600,000,000 |  |  |  |  | 600,000,000 |  |  |
Techgen S.A. de C.V. | Syndicated Loan | Financial Guarantee |  |  |  |  |  |  |  |  |
Disclosure of contingent liabilities [line items] |  |  |  |  |  |  |  |  |
Guarantor obligations, outstanding | 288,000,000 |  |  |  |  | $ 288,000,000 |  |  |
Techgen S.A. de C.V. | Syndicated Loan | Financial Guarantee |  |  |  |  |  |  |  |  |
Disclosure of contingent liabilities [line items] |  |  |  |  |  |  |  |  |
Threshold percentage, right to purchase energy |  |  |  |  |  | 78.00% |  |  |
Guarantor obligations, percentage |  |  |  |  |  | 48.00% |  |  |
Scenario one | Ternium Argentina S.A. |  |  |  |  |  |  |  |  |
Disclosure of contingent liabilities [line items] |  |  |  |  |  |  |  |  |
Long-term purchase commitment, minimum percentage of volume required |  |  |  |  |  | 80.00% |  |  |
Long-term purchase commitment, percentage of penalty |  |  |  |  |  | 7.00% |  |  |
Scenario one | Bottom of range | Ternium Argentina S.A. |  |  |  |  |  |  |  |  |
Disclosure of contingent liabilities [line items] |  |  |  |  |  |  |  |  |
Long-term purchase commitment, percentage of total volume actually operated |  |  |  |  |  | 70.00% |  |  |
Scenario one | Top of range | Ternium Argentina S.A. |  |  |  |  |  |  |  |  |
Disclosure of contingent liabilities [line items] |  |  |  |  |  |  |  |  |
Long-term purchase commitment, percentage of total volume actually operated |  |  |  |  |  | 75.00% |  |  |
Scenario two | Ternium Argentina S.A. |  |  |  |  |  |  |  |  |
Disclosure of contingent liabilities [line items] |  |  |  |  |  |  |  |  |
Long-term purchase commitment, minimum percentage of volume required |  |  |  |  |  | 80.00% |  |  |
Long-term purchase commitment, percentage of penalty |  |  |  |  |  | 15.00% |  |  |
Scenario two | Bottom of range | Ternium Argentina S.A. |  |  |  |  |  |  |  |  |
Disclosure of contingent liabilities [line items] |  |  |  |  |  |  |  |  |
Long-term purchase commitment, percentage of total volume actually operated |  |  |  |  |  | 70.00% |  |  |
Forecast | Natural Gas | Ternium Argentina S.A. |  |  |  |  |  |  |  |  |
Disclosure of contingent liabilities [line items] |  |  |  |  |  |  |  |  |
Long-term purchase commitment, amount |  |  |  |  |  | $ 33,700,000 |  |  |
Ternium Mexico Syndicated Loan Due June 2023 |  |  |  |  |  |  |  |  |
Disclosure of contingent liabilities [line items] |  |  |  |  |  |  |  |  |
Original principal amount | $ 1,000,000,000 |  |  |  |  | $ 1,000,000,000 |  | $ 1,000,000,000 |
Borrowings, net senior leverage ratio | 350.00% |  |  |  |  | 350.00% |  |  |
Borrowings | $ 400,000,000 |  |  |  |  | $ 400,000,000 |  |  |

X
- Definition The amount of outstanding funds that the entity is obligated to repay. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_55&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_Borrowings
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
Name: | ifrs-full_DisclosureOfContingentLiabilitiesLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of dividends that the company has declared but not yet paid. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_55&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_DividendPayables
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The nominal or face amount of a financial instrument, used to calculate payments made on that instrument. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_112_c&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_NotionalAmount
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

X
- Definition Borrowings, net senior leverage ratio + References No definition available. + Details
Name: | tx_Borrowingsnetseniorleverageratio
Namespace Prefix: | tx_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Borrowings outstanding + References No definition available. + Details
Name: | tx_Borrowingsoutstanding
Namespace Prefix: | tx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Guarantor Obligations, Borrowing Outstanding + References No definition available. + Details
Name: | tx_GuarantorObligationsBorrowingOutstanding
Namespace Prefix: | tx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Guarantor Obligations, Current Carrying Value + References No definition available. + Details
Name: | tx_GuarantorObligationsCurrentCarryingValue
Namespace Prefix: | tx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Guarantor Obligations, Outstanding + References No definition available. + Details
Name: | tx_GuarantorObligationsOutstanding
Namespace Prefix: | tx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Guarantor Obligations, Percentage + References No definition available. + Details
Name: | tx_GuarantorObligationsPercentage
Namespace Prefix: | tx_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Guarantor Obligations, Percentage of Amount Payable if Counterparty Terminates Agreement + References No definition available. + Details
Name: | tx_GuarantorObligationsPercentageofAmountPayableifCounterpartyTerminatesAgreement
Namespace Prefix: | tx_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Long-term Contract for Purchase of Electric Power, Credit + References No definition available. + Details
Name: | tx_LongtermContractforPurchaseofElectricPowerCredit
Namespace Prefix: | tx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Long-term Contract for Purchase of Electric Power, Credit, Per Megawatt + References No definition available. + Details
Name: | tx_LongtermContractforPurchaseofElectricPowerCreditPerMegawatt
Namespace Prefix: | tx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Long-term Contract for Purchase of Electric Power, Discount + References No definition available. + Details
Name: | tx_LongtermContractforPurchaseofElectricPowerDiscount
Namespace Prefix: | tx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Long-term Contract for Purchase of Electric Power, Electrical Demand + References No definition available. + Details
Name: | tx_LongtermContractforPurchaseofElectricPowerElectricalDemand
Namespace Prefix: | tx_
Data Type: | num:powerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Long-term Contract for Purchase of Electric Power, Term + References No definition available. + Details
Name: | tx_LongtermContractforPurchaseofElectricPowerTerm
Namespace Prefix: | tx_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Long-term Purchase Commitment, Amount + References No definition available. + Details
Name: | tx_LongtermPurchaseCommitmentAmount
Namespace Prefix: | tx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Long-term Purchase Commitment, Minimum Percentage of Volume Required + References No definition available. + Details
Name: | tx_LongtermPurchaseCommitmentMinimumPercentageofVolumeRequired
Namespace Prefix: | tx_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Long-term Purchase Commitment, Minimum Quantity Required + References No definition available. + Details
Name: | tx_LongtermPurchaseCommitmentMinimumQuantityRequired
Namespace Prefix: | tx_
Data Type: | num:massItemType
Balance Type: | na
Period Type: | duration

X
- Definition Long-term Purchase Commitment, Percentage of Penalty + References No definition available. + Details
Name: | tx_LongtermPurchaseCommitmentPercentageofPenalty
Namespace Prefix: | tx_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Long-term Purchase Commitment, Percentage of Total Volume Actually Operated + References No definition available. + Details
Name: | tx_LongtermPurchaseCommitmentPercentageofTotalVolumeActuallyOperated
Namespace Prefix: | tx_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Long-term Purchase Commitment, Period + References No definition available. + Details
Name: | tx_LongtermPurchaseCommitmentPeriod1
Namespace Prefix: | tx_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Long-term Purchase Commitment, Period For Maintenance Services of Turbines + References No definition available. + Details
Name: | tx_LongtermPurchaseCommitmentPeriodForMaintenanceServicesofTurbines
Namespace Prefix: | tx_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Long-term Purchase Commitment, Period To Make Investments to Improve Loading and Unloading of Gondolas + References No definition available. + Details
Name: | tx_LongtermPurchaseCommitmentPeriodToMakeInvestmentstoImproveLoadingandUnloadingofGondolas
Namespace Prefix: | tx_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Long-term Purchase Commitment, Quantity Required + References No definition available. + Details
Name: | tx_LongtermPurchaseCommitmentQuantityRequired
Namespace Prefix: | tx_
Data Type: | num:massItemType
Balance Type: | na
Period Type: | duration

X
- Definition Long-term Purchase Commitment, Total Purchased Volume + References No definition available. + Details
Name: | tx_LongtermPurchaseCommitmentTotalPurchasedVolume
Namespace Prefix: | tx_
Data Type: | num:massItemType
Balance Type: | na
Period Type: | duration

X
- Definition Long-term Purchase Commitment, Volume + References No definition available. + Details
Name: | tx_LongtermPurchaseCommitmentVolume
Namespace Prefix: | tx_
Data Type: | num:volumeItemType
Balance Type: | na
Period Type: | duration

X
- Definition Long-term contract for purchase of natural gas transportation, capacity + References No definition available. + Details
Name: | tx_Longtermcontractforpurchaseofnaturalgastransportationcapacity
Namespace Prefix: | tx_
Data Type: | num:energyItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of Distributors + References No definition available. + Details
Name: | tx_NumberofDistributors
Namespace Prefix: | tx_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of electrical plants + References No definition available. + Details
Name: | tx_Numberofelectricalplants
Namespace Prefix: | tx_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of electrical plants terminated + References No definition available. + Details
Name: | tx_Numberofelectricalplantsterminated
Namespace Prefix: | tx_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of electrical needs supplied + References No definition available. + Details
Name: | tx_Percentageofelectricityneedssupplied
Namespace Prefix: | tx_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Short-term Contract for Purchase of Electric Power, Length That Rates Are Similar To Previous Term + References No definition available. + Details
Name: | tx_ShorttermContractforPurchaseofElectricPowerLengthThatRatesAreSimilarToPreviousTerm
Namespace Prefix: | tx_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Short-term Contract for Purchase of Electric Power, Percentage Discount On Contract + References No definition available. + Details
Name: | tx_ShorttermContractforPurchaseofElectricPowerPercentageDiscountOnContract
Namespace Prefix: | tx_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Threshold Percentage, Right to Purchase Energy + References No definition available. + Details
Name: | tx_ThresholdPercentageRighttoPurchaseEnergy
Namespace Prefix: | tx_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_CounterpartiesAxis=tx_TechgenS.A.deC.V.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CounterpartiesAxis=tx_TerniumMexicoS.A.deC.V.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CounterpartiesAxis=tx_IberdrolaEnergiaMontereyS.A.deC.V.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CounterpartiesAxis=tx_GasIndustrialdeMonterreyS.A.deC.V.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CounterpartiesAxis=tx_KinderMorganGasMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CounterpartiesAxis=tx_TerniumBrasilLtda.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CounterpartiesAxis=tx_GEGlobalPartsandProductsGMBHGeneralElectricInternationalInc.andAlstomEnergiaTrmicaeIndstriaLtda.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CounterpartiesAxis=tx_PrimetalsTechnologiesBrazilLtda.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CounterpartiesAxis=tx_AirLiquideBrasilLtda.AirSteelLtda.WhiteMartinsGasesIndustriaisLtda.WhiteMartinsSteelLtda.andThyssenKruppMinEnergyGmbHMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CounterpartiesAxis=tx_CompanhiaDistribuidoradeGsdoRiodeJaneiroMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CounterpartiesAxis=tx_StahllogSolucaoLogisticasLtda.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | tx_UnrecordedUnconditionalPurchaseObligationbyCategoryofItemPurchasedAxis=tx_PublicUtilitiesInventoryFuel1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CounterpartiesAxis=tx_AirLiquideArgentinaS.A.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | tx_CategoryofItemPurchasedAxis=tx_IronOrePelletsandIronOreFinesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CounterpartiesAxis=tx_TerniumArgentinaS.A.formerlySiderarS.A.I.C.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CounterpartiesAxis=tx_ValeS.A.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | tx_CategoryofItemPurchasedAxis=tx_FreightServicesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CounterpartiesAxis=tx_FerrocarrilMexicanoS.A.deC.V.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=tx_TerniumS.A.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=tx_TechgenS.A.deC.V.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | tx_DebtInstrument1Axis=tx_SyndicatedLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | tx_GuarantorObligationsNatureAxis=tx_FinancialGuarantee1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=tx_TechgenS.A.deC.V.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | tx_Scenario1Axis=tx_NumberOneMember
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_RangeAxis=ifrs-full_TopOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | tx_Scenario1Axis=tx_NumberTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | tx_Scenario1Axis=tx_ForecastMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | tx_CategoryofItemPurchasedAxis=tx_NaturalGasMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=tx_TerniumMexicoSyndicatedLoanDueJune2023Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |