Reclassification to income statement, currency translation adjustment Reclassification adjustments on change in value of foreign currency basis spreads Reclassification adjustments on change in value of foreign currency basis spreads Disclosure of contingent liabilities [line items] Disclosure of contingent liabilities [line items] Interest expense Interest expense Ternium Mexico Ternium Mexico [Member] Ternium Mexico Other labour contingencies Other Labour Contingencies [Member] Other Labour Contingencies Disclosure of geographical areas [line items] Disclosure of geographical areas [line items] Proportion of shares held Proportion Of Shares Held Proportion Of Shares Held Unused tax credits for which no deferred tax asset recognised Unused tax credits for which no deferred tax asset recognised Capital expenditures Purchase of property, plant and equipment, classified as investing activities Taxes Tax expense other than income tax expense Net proceeds, lease liabilities Net Proceeds, Lease Liabilities Net Proceeds, Lease Liabilities Ternium Gas Mexico S.A. de C.V. Ternium Gas Mexico S.A. de C.V. [Member] Ternium Gas Mexico S.A. de C.V. [Member] Entity File Number Entity File Number Income Tax [Line Items] Income Tax [Line Items] Income Tax [Line Items] Employee advances and loans Non-current employee advances and loans Non-current employee advances and loans Impairment loss recognised in profit or loss, property, plant and equipment Impairment loss recognised in profit or loss, intangible assets other than goodwill Disclosure of detailed information about business combination [line items] Disclosure of detailed information about business combination [line items] Dividends paid in cash Dividends paid, ordinary shares Dividends paid, ordinary shares Schedule of Other Financial Income (Expenses), Net Schedule of other financial income (expenses), net [Table Text Block] Schedule of other financial income (expenses), net [Table Text Block] Other investments, net – Non-current Other investments, net, noncurrent Other investments, net, noncurrent Levels of fair value hierarchy Levels of fair value hierarchy [domain] Tax collection proceedings related to the collection of ICMS/SP on goods shipped to other countries without effective proof of export. Tax Collection Proceedings Related To ICMS/SP [Member] Tax Collection Proceedings Related To ICMS/SP Inter-segment eliminations Elimination of intersegment amounts [member] Dividends paid in cash to company’s shareholders Dividends paid to equity holders of parent, classified as financing activities Net defined benefit liability (asset) [axis] Net defined benefit liability (asset) [axis] Schedule of Labor Costs Schedule of labor costs [Table Text Block] Schedule of labor costs [Table Text Block] Reasonably possible change in risk variable, percent Sensitivity Analysis For Types Of Market Risk, Reasonably Possible Change In Risk Variable, Percent Sensitivity Analysis For Types Of Market Risk, Reasonably Possible Change In Risk Variable, Percent 2028 Later than two years and not later than three years [member] Condensed Cash Flow Statement [Table] Condensed Cash Flow Statement [Table] (ii) Cash and cash equivalents Cash and cash equivalents [abstract] Ternium Solutions S.A. Ternium Solutions S.A. [Member] Ternium Solutions S.A. 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Vix Logistica S.A. [Member] Vix Logistica S.A. Amortisation rates, intangible assets other than goodwill Amortisation rates Amortisation rates Ternium Investments S.à.r.l. Ternium Investments S.a.r.l. [Member] Ternium Investments S.a.r.l. [Member] Disclosure of geographical areas [table] Disclosure of geographical areas [table] Dividends proposed or declared before financial statements authorised for issue but not recognised as distribution to owners Dividends proposed or declared before financial statements authorised for issue but not recognised as distribution to owners Disclosure of Major Components of Tax Expense Disclosure of Major Components of Tax Expense (Income) [Table Text Block] Disclosure of Major Components of Tax Expense (Income) [Table Text Block] Recently issued accounting pronouncements Description of accounting policy for recently issued pronouncements [Policy Text Block] Description of accounting policy for recently issued pronouncements [Policy Text Block] Trade payables Trade and other non-current payables Legal reserve Statutory reserve Derivative financial instruments Current derivative financial liabilities Assets at fair value through profit or loss Financial assets at fair value through profit or loss, category [member] Sovereign Bonds Sovereign Bonds [Member] Sovereign Bonds Fully performing Current [member] Advances to suppliers Current prepayments Translation differences Increase (decrease) through net exchange differences, intangible assets and goodwill Statement of financial position [abstract] Statement of financial position [abstract] Other operating (expense) income, net Differences in Other operating income (expense), net Other operating (expense) income, net Other operating income (expense) Cover [Abstract] Cold rolled Cold rolled [Member] Cold rolled Effect related to the increase of the participation in Usiminas Effect related to the increase of the participation in Usiminas Effect Related To The Increase Of The Participation In Subsidiary Effect Related To The Increase Of The Participation In Usiminas Ferropak Comercial S.A. de C.V. Ferropak Comercial S.A. de C.V. [Member] Ferropak Comercial S.A. de C.V. Provisions Description of accounting policy for provisions [text block] Office expenses Office expenses, Cost of Sales Office expenses, Cost of Sales Classes of intangible assets other than goodwill [axis] Classes of intangible assets other than goodwill [axis] Trade receivables Trade receivables Income statement credit (charge) Deferred Tax Expense (Income) And Adjustments For Deferred Tax Of Prior Periods Deferred Tax Expense (Income) And Adjustments For Deferred Tax Of Prior Periods Tecpetrol International S.A. Tecpetrol International S.A. [Member] Tecpetrol International S.A. [Member] Labor cost Labor costs, SG&A Labor costs, SG&A Put And Call Option Put And Call Option [Member] Put And Call Option Entity Shell Company Entity Shell Company Cash flows from (used in) financing activities [abstract] Cash flows from (used in) financing activities [abstract] Current bonds Current bonds issued and current portion of non-current bonds issued MXN MXN Mexico, Pesos Ical Industria de Calcinacao Ltda Ical Industria de Calcinacao Ltda [Member] Ical Industria de Calcinacao Ltda Classes of liabilities Classes of liabilities [domain] White Martins WK White Martins WK [Member] White Martins WK Other Operating Segments Of The Same Entity Other Operating Segments Of The Same Entity [Member] Other Operating Segments Of The Same Entity Remeasurements Decrease (increase) in net defined benefit liability (asset) resulting from gain (loss) on remeasurement in other comprehensive income Disclosure of trade receivables [Table] Disclosure of trade receivables [Table] Disclosure of trade receivables [Table] Sales of services and others, related party transactions Revenue from rendering of services, related party transactions Number of tax claims filed Number Of Tax Claims Filed Number Of Tax Claims Filed Commitments [Axis] Commitments [Axis] Commitments Total comprehensive income (loss) for the year Total comprehensive income (loss) for the year Comprehensive income Disclosure of maturity analysis for financial assets held for managing liquidity risk [line items] Disclosure of maturity analysis for financial assets held for managing liquidity risk [line items] Future finance charges Future Finance Charges Future Finance Charges Contingencies Recognized By Usiminas Before Business Combination Contingencies Recognized By Usiminas Before Business Combination [Member] Contingencies Recognized By Usiminas Before Business Combination Disclosure of general information about financial statements [Abstract] Disclosure of general information about financial statements [Abstract] Disclosure of general information about financial statements [Abstract] Schedule of Other Liabilities Recognized in Statement of Financial Position Disclosure of net defined benefit liability (asset) [text block] Goods in process Current work in progress Incentive Retention Program Incentive Retention Program [Member] Incentive Retention Program [Member] Number of tons Plant Production Capacity, Tons Plant Production Capacity, Tons Fixed assets and mining assets Fixed Assets And Mining Assets [Member] Fixed Assets And Mining Assets Other deposits with maturity of more than three months Short-term deposits, not classified as cash equivalents Document Fiscal Period Focus Document Fiscal Period Focus Usiminas Participações E Logística S.A. Usiminas Participações E Logística S.A. [Member] Usiminas Participações E Logística S.A. Long-term purchase commitment, contracted daily capacity Long-Term Purchase Commitment, Contracted Daily Capacity Long-Term Purchase Commitment, Contracted Daily Capacity Total assets Assets Assets Functional Currency [Axis] Functional Currency [Axis] Functional Currency [Axis] Mining assets Mining assets [member] Category of Item Purchased [Axis] Category of Item Purchased [Axis] Category of Item Purchased [Axis] Early redemption, period (years) Share-based Compensation Arrangement by Share-based Payment Award, Early Redemption, Period Share-based Compensation Arrangement by Share-based Payment Award, Early Redemption, Period Income taxes - current and deferred Description of accounting policy for income tax [text block] Spare parts Spare parts [Member] Spare parts [Member] Uses Provision used, other provisions, non-current Provision used, other provisions, non-current Changes in fair value Financial Assets, At Fair Value, Changes In Fair Value Financial Assets, At Fair Value, Changes In Fair Value Associates Associates [domain] Group accounting Description of accounting policy for business combinations [text block] Credit risk Credit risk [member] Trading Symbol Trading Symbol Receivables, related party transactions Amounts receivable, related party transactions Types of interest rates [axis] Types of interest rates [axis] Other currencies Other currencies [Member] Other currencies [Member] Net sales Revenue Ternium Mexico S.A. de C.V. Ternium Mexico S.A. de C.V. [Member] Ternium Mexico S.A. de C.V. [Member] Other investments Other Investments1 [Member] Other Investments [Member] Entity Address, City or Town Entity Address, City or Town Forward contract Forward contract [member] Provision for ongoing litigation related to the acquisition of a participation in Usiminas Provision For Ongoing Litigation Related To The Acquisition Of A Participation In Usiminas [Member] Provision For Ongoing Litigation Related To The Acquisition Of A Participation In Usiminas Federal Government Brazilian Federal Government [Member] Brazilian Federal Government BORROWINGS Disclosure of borrowings [text block] Public Civil Action seeking compensation for alleged damages caused to the State of Santa Catarina's Treasury related to improper expenditures incurred in the construction of a bridge. Public Civil Action Seeking Compensation For Alleged Damages Caused To The State Of Santa Catarina's Treasury [Member] Public Civil Action Seeking Compensation For Alleged Damages Caused To The State Of Santa Catarina's Treasury Assets classified as held for sale Non-current assets or disposal groups classified as held for sale or as held for distribution to owners Capital stock Issued capital [member] Current borrowings Current borrowings Net proceeds, non-current lease liabilities Net Proceeds, Non-Current Lease Liabilities Net Proceeds, Non-Current Lease Liabilities Other liabilities Other liabilities – Non-current Other non-current liabilities Classes of other provisions Classes of other provisions [domain] Reserves Other reserves [member] Number of shares acquired through business combination (in shares) Number Of Shares Acquired Through Acquisition Of Participation Interest Number Of Shares Acquired Through Business Combination Cash flows Increase (decrease) through financing cash flows, liabilities arising from financing activities Losses on disposals of property, plant and equipment Gains (losses) on disposals of property, plant and equipment Mining Mining [Member] Mining [Member] Entity Emerging Growth Company Entity Emerging Growth Company Effects related to the increase of the participation in Usiminas Effects Related To The Increase Of The Participation In Subsidiary Effects Related To The Increase Of The Participation In Subsidiary Reclassifications, lease liabilities Reclassifications, Lease Liabilities Reclassifications, Lease Liabilities (i) Other investments Other investments [Abstract] Other investments [Abstract] Trade payables Description of accounting policy for trade and other payables [text block] GENERAL INFORMATION Disclosure of general information about financial statements [text block] Position [Domain] Position1 [Domain] [Domain] for Position1 [Axis] Current assets excluding assets classified as held for sale Current assets other than non-current assets or disposal groups classified as held for sale or as held for distribution to owners Termination benefits Termination benefits expense Reversals Other reversals of provisions, current Other reversals of provisions, current Other operating income Other Operating Income, Gross Other Operating Income, Gross Income tax expense at statutory tax rate Tax expense (income) at applicable tax rate Machinery Production equipment Machinery [member] Expenses paid in advance Current prepaid expenses Work in progress Construction in progress [member] Swap contract Swap contract [member] ASSETS Assets [abstract] Position [Axis] Position1 [Axis] Position1 [Axis] Inventories Inventory Temporary Differences [Member] Inventory [Member] Buildings and improvements Buildings and improvements [Member] Buildings and improvements [Member] Right-of-use assets Right-of-use assets [member] Contingent liability, attorney fees Contingent Liability, Attorney Fees Contingent Liability, Attorney Fees GE Global Parts and Products GMBH, General Electric International Inc. and Alstom Energia Térmica e Indústria Ltda. GE Global Parts and Products GMBH, General Electric International Inc. and Alstom Energia Térmica e Indústria Ltda. [Member] GE Global Parts and Products GMBH, General Electric International Inc. and Alstom Energia Térmica e Indústria Ltda. [Member] Effect of currency translation on tax base Effect of currency translation on tax base It represents the effect in tax generated by the adjustment related to the currency translation fiscal balances in currencies other than the functional currency Medium and heavy duty trucks Tariffs Announced, Medium And Heavy Duty Trucks [Member] Tariffs Announced, Medium And Heavy Duty Trucks 2028 and thereafter Later than two years [Member] Later than two years [Member] Mining development costs Description of accounting policy for mining development costs [Policy Text Block] Description of accounting policy for mining development costs [Policy Text Block] Current assets Current assets [abstract] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Non-cash transactions: Noncash Investing and Financing Items [Abstract] Noncash Investing and Financing Items [Abstract] Non-current assets Non-current assets [abstract] LABOR COSTS (Included Cost of sales and Selling, General and Administrative expenses) Disclosure of labor costs [Text Block] Disclosure of labor costs [Text Block] Other comprehensive income, net of tax, change in value of foreign currency basis spreads, beginning balance Other comprehensive income, net of tax, change in value of foreign currency basis spreads, ending balance Accumulated Other Comprehensive Income, Exchange Differences on Translation Other comprehensive income, exchange differences on translation Disclosure of nature and extent of risks arising from financial instruments [line items] Disclosure of nature and extent of risks arising from financial instruments [line items] Auditor's remuneration for other services Auditor's remuneration for other services Additions Additions other than through business combinations, property, plant and equipment including right-of-use assets Cash and cash equivalents Cash and cash equivalents recognised as of acquisition date INCOME TAX EXPENSE DEFERRED INCOME TAX Disclosure of income tax [text block] Variable Rate1 [Axis] Variable Rate1 [Axis] Variable Rate1 Transfers Increase (decrease) through transfers, intangible assets and goodwill Revenue recognition and other income Description of accounting policy for recognition of revenue [text block] All Currencies [Abstract] All Currencies [Abstract] All Currencies [Abstract] Nomination right for chief executive officer, alternation term Nomination Right For Chief Executive Officer, Alternation Term Nomination Right For Chief Executive Officer, Alternation Term Other financial (expenses) income, net Financial income (expense), net Other financial income (expenses), net Other finance income (cost) Condensed Cash Flow Statements, Captions [Line Items] Condensed Cash Flow Statements, Captions [Line Items] Disclosure of impairment loss and reversal of impairment loss [table] Disclosure of impairment loss and reversal of impairment loss [table] Number of post retirement plans Number Of Post Retirement Plans Number Of Post Retirement Plans Ternium Procurement S.A. Ternium Procurement S.A. [Member] Ternium Procurement S.A. National Operator Of The Electric System (ONS) National Operator Of The Electric System (ONS) [Member] National Operator Of The Electric System (ONS) Derivative financial assets, share price (in BRL per share) Derivative Financial Assets, Share Price Derivative Financial Assets, Share Price Movement in cash and cash equivalents Effect of exchange rate changes on cash and cash equivalents [abstract] COP/$ COP Colombia, Pesos Related Parties Current payables to related parties Disclosure of related party [Abstract] Disclosure of related party [Abstract] Disclosure of related party [Abstract] Disclosure of impairment loss and reversal of impairment loss [line items] Disclosure of impairment loss and reversal of impairment loss [line items] Related party transactions [abstract] Related party transactions [abstract] Disclosure of analysis of other comprehensive income by item [line items] Disclosure of analysis of other comprehensive income by item [line items] Other income (expenses), net, related party transactions Other operating income (expense), related party transactions Other operating income (expense), related party transactions Cash flows from investing activities Cash flows from (used in) investing activities [abstract] Wages, salaries and social security costs Short-term employee benefits expense Price per share as per share purchase agreement (in BRL per share) Price Per Share As Per Share Purchase Agreement Price Per Share As Per Share Purchase Agreement Proposed annual dividend (in dollars per share) Dividends proposed or declared before financial statements authorised for issue but not recognised as distribution to owners per share Mining concession, period Mining concession, period Mining concession, period Additions Additional Provisions, Other Provisions, Current Additional Provisions, Other Provisions, Current Acquisition of business Acquisitions Through Business Combinations Other Provisions Current Acquisitions Through Business Combinations Other Provisions Current Amortization of intangible assets Amortisation, intangible assets other than goodwill, SG&A Amortisation, intangible assets other than goodwill, SG&A NSC Group NSC Group [Member] NSC Group Finance income (expense) with related parties Finance income (expense) with related parties Finance income (expense) with related parties Cash and cash equivalents Description of accounting policy for determining components of cash and cash equivalents [text block] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation Derivative contract results Gains (losses) on change in fair value of derivatives MATTERS RELATED TO THE ARGENTINE SUBSIDIARIES Matters Related To The Argentine Subsidiaries [Text Block] Matters Related To The Argentine Subsidiaries Disclosure of interests in other entities [Abstract] Disclosure of interests in other entities [Abstract] Disclosure of interests in other entities [Abstract] Petcoke Petcoke [Member] Petcoke Dividends payable Current dividend payables Legal proceedings contingent liability Legal proceedings contingent liability [member] Financing Receivables, Period Past Due [Domain] Financing Receivables, Period Past Due1 [Domain] [Domain] for Financing Receivables, Period Past Due [Axis] Non-current assets Non-current assets Non-current assets Proportion of ownership interest in associate (percent) Proportion of ownership interest in associate Changes in the fair value of derivatives classified as cash flow hedges Other comprehensive income, before tax, cash flow hedges Disclosure of defined benefit plans [table] Disclosure of defined benefit plans [table] Annual take or pay volume Long-Term Purchase Commitment, Annual Take Or Pay Volume Long-Term Purchase Commitment, Annual Take Or Pay Volume OTHER OPERATING INCOME (EXPENSES), NET Disclosure of other operating income (expense) [text block] Net foreign exchange (loss) gain Foreign exchange gain (loss) Classes of property, plant and equipment [axis] Classes of property, plant and equipment [axis] Impairment Description of accounting policy for impairment of assets [text block] Non-current portion, bonds Non-current portion of non-current bonds issued Cash-generating units [axis] Cash-generating units [axis] Classes of property, plant and equipment [domain] Classes of property, plant and equipment [domain] Actuarial assumptions Actuarial assumptions [domain] Ternium Internacional Honduras S.A. de C.V. Ternium Internacional Honduras S.A. de C.V. [Member] Ternium Internacional Honduras S.A. de C.V. Entity Address, Country Entity Address, Country EUR EUR/$ Euro Member Countries, Euro Interest accrued, current lease liabilities Increase (Decrease) Through Interest Accrued, Current Lease Liabilities Increase (Decrease) Through Interest Accrued, Current Lease Liabilities Government tax refunds on exports Other current receivables, net Other current receivables, net Effect of exchange rate changes Effect of exchange rate changes on cash and cash equivalents Financial assets, investments assessed as investment grade, percent Financial assets, investments assessed as investment grade, percent Financial assets, investments assessed as investment grade, percent Long-term purchase commitment, percentage of penalty Long-term Purchase Commitment, Percentage of Penalty Long-term Purchase Commitment, Percentage of Penalty Commitments [Domain] Commitments [Domain] Commitments [Domain] Allowance for doubtful accounts Allowance For Credit Losses As Of Acquisition Date Allowance For Credit Losses As Of Acquisition Date Repayment of additional paid in capital, next three years Repayment Of Additional Paid In Capital, Next Three Years Repayment Of Additional Paid In Capital, Next Three Years Document Annual Report Document Annual Report Other tax credits Current receivables from taxes other than income tax Percentage of reasonably possible increase in actuarial assumption Percentage of reasonably possible increase in actuarial assumption Disclosure of commitment and contingencies [Abstract] Disclosure of commitment and contingencies [Abstract] Disclosure of commitment and contingencies [Abstract] Information system projects Information system projects [Member] Information system projects [Member] Ternium del Cauca S.A.S. Ternium del Cauca S.A.S. [Member] Ternium del Cauca S.A.S. [Member] Disclosure of detailed information about financial instruments [table] Disclosure of detailed information about financial instruments [table] Geographical areas Geographical areas [domain] Commercial papers Fixed Income, Commercial Paper [Member] Fixed Income, Commercial Paper FINANCIAL RISK MANAGEMENT Disclosure of financial risk management [text block] Trade receivables, net – Non-current Noncurrent Trade Receivables, net Noncurrent Trade Receivables, net Repayment of additional paid in capital Decrease through other distributions to owners, equity Entity Interactive Data Current Entity Interactive Data Current GTQ Guatemala, Quetzales Guatemala, Quetzales OTHER LIABILITIES - NON CURRENT AND CURRENT Disclosure of other liabilities [text block] Disclosure of attribution of expenses by nature to their function [line items] Disclosure of attribution of expenses by nature to their function [line items] Consorcio Minero Benito Juarez Peña Colorada S.A.de C.V. Consorcio Minero Benito Juarez Peña Colorada S.A.de C.V. [Member] Consorcio Minero Benito Juarez Peña Colorada S.A.de C.V. Levels of fair value hierarchy [axis] Levels of fair value hierarchy [axis] Cemig S.A. Cemig S.A. [Member] Cemig S.A. Recognition of previously unrecognized tax losses Increase (Decrease) Of Unrecognized Tax Losses, Deferred Tax Liability Asset Increase (Decrease) Of Unrecognized Tax Losses, Deferred Tax Liability Asset Difference between historical carrying amounts of assets and value at which assets were contributed Difference between historical carrying amounts of assets and value at which assets were contributed Difference between historical carrying amounts of assets and value at which assets were contributed Equity attributable to owners of parent [member] Equity attributable to owners of parent [member] Finance expense Finance expense Finance costs Disclosure of Financial Assets Disclosure of financial assets [text block] Income tax accruals less payments Income tax accruals less payments, total Adjustments for income tax expense Life expectancy Actuarial assumption of life expectancy after retirement [member] Disclosure of credit risk exposure [table] Disclosure of credit risk exposure [table] Increase in assumption, Impact on defined benefit obligation Percentage Increase (Decrease) In Defined Benefit Obligation Due To Reasonably Possible Increase In Actuarial Assumption Percentage Increase (Decrease) In Defined Benefit Obligation Due To Reasonably Possible Increase In Actuarial Assumption Proportion of ownership interest in associate's power supply (percent) Proportion of ownership interest in associate's power supply Proportion of ownership interest in associate's power supply Other liabilities Other liabilities Number of decisions issued Number Of Decisions Issued Number Of Decisions Issued Steel and steel derivatives Tariffs Announced, Steel And Steel Derivatives [Member] Tariffs Announced, Steel And Steel Derivatives Tender offer, percent Tender offer, percent Tender offer, percent Guarantor obligations, amount Guarantor Obligations, Amount Guarantor Obligations, Amount Remeasurement of post employment benefit obligations Total included in other comprehensive income Other comprehensive income, before tax, gains (losses) on remeasurements of defined benefit plans Income tax relating to remeasurement of post employment benefit obligations Income tax relating to remeasurements of defined benefit plans included in other comprehensive income Entity Central Index Key Entity Central Index Key Reduction Of Carbon Emissions By 2030 Reduction Of Carbon Emissions By 2030 [Member] Reduction Of Carbon Emissions By 2030 Other Other comprehensive income that will be reclassified to profit or loss, net of tax Employee advances and loans Current employee advances and loans Current employee advances and loans Services and fees Professional fees expense Contingent liability, legal proceedings, additional expenses and costs Contingent Liability, Legal Proceedings, Additional Expenses And Costs Contingent Liability, Legal Proceedings, Additional Expenses And Costs Currency translation adjustment Other comprehensive income, exchange differences on translation Other comprehensive income, exchange differences on translation Number of justices Number Of Justices Number Of Justices Attributable to: Profit (loss), attributable to [abstract] Thyssenkrupp Slab International B.V. & CSA Siderúrgica do Atlântico Ltda. Thyssenkrupp Slab International B.V. & CSA Siderúrgica do Atlântico Ltda. [Member] Thyssenkrupp Slab International B.V. & CSA Siderúrgica do Atlântico Ltda. [Member] Risk exposure associated with instruments sharing characteristic Risk exposure associated with instruments sharing characteristic Deferred tax assets Deferred tax assets recognised as of acquisition date Insurance Insurance expense Subsequent acquisition of participation in Usiminas Subsequent Acquisition Of Participation In Usiminas [Member] Subsequent Acquisition Of Participation In Usiminas Property, plant and equipment Reconciliation of changes in property, plant and equipment [abstract] Entity Filer Category Entity Filer Category Debt Instrument [Axis] Debt Instrument1 [Axis] Debt Instrument [Axis] Other tax credits Non-current receivables from taxes other than income tax Disclosure of maturity analysis for financial assets held for managing liquidity risk [table] Disclosure of maturity analysis for financial assets held for managing liquidity risk [table] Interest income Increase (decrease) in net defined benefit liability (asset) resulting from interest expense (income) Effect related to the increase of the participation in Usiminas Recycling Of Other Comprehensive Income Related To The Increase Of The Participation In Subsidiary Recycling Of Other Comprehensive Income Related To The Increase Of The Participation In Subsidiary Guarantor Obligations, Nature [Axis] Guarantor Obligations, Nature [Axis] Guarantor Obligations, Nature Praxair Mexico Praxair Mexico [Member] Praxair Mexico Net foreign exchange gain Financial Assets, At Fair Value, Net Foreign Exchange Gains (Losses) Financial Assets, At Fair Value, Net Foreign Exchange Gains (Losses) Operating income Operating income Profit (loss) from operating activities Schedule of Other Operating Income (Expenses), Net Schedule of other operating income (expenses), net [Table Text Block] Schedule of other operating income (expenses), net [Table Text Block] Litigation Status [Axis] Litigation Status1 [Axis] Litigation Status [Axis] Others Other current receivables Contingent liability, tender offer litigation Contingent Liability, Tender Offer Litigation Contingent Liability, Tender Offer Litigation Auditor's remuneration for audit services Auditor's remuneration for audit services Entity Address, Address Line One Entity Address, Address Line One Deferred tax liability, beginning balance Deferred tax liability, ending balance Net deferred tax liabilities Syndicated Loan Syndicated Loan [Member] Syndicated Loan [Member] LEASE LIABILITIES Disclosure of leases [text block] Ternium Argentina S.A. Ternium Argentina S.A. [Member] Ternium Argentina S.A. [Member] Interest cost (income), net Interest expense (income), defined benefit plans Usiminas Mecânica S.A. And Rios Unidos logistica e transporte de açõ Ltda. Usiminas Mecânica S.A. And Rios Unidos logistica e transporte de açõ Ltda. [Member] Usiminas Mecânica S.A. And Rios Unidos logistica e transporte de açõ Ltda. RECEIVABLES, NET - NON CURRENT AND CURRENT Disclosure of receivables, net [Text Block] Disclosure of receivables, net [Text Block] Borrowings outstanding Borrowings outstanding Borrowings outstanding Other comprehensive income and other effects Share of total comprehensive income of associates and joint ventures accounted for using equity method White Martins Gases Industriais LTD White Martins Gases Industriais LTD [Member] White Martins Gases Industriais LTD Air Liquide Brasil Ltda., AirSteel Ltda., White Martins Gases Industriais Ltda., White Martins Steel Ltda. and ThyssenKrupp MinEnergy GmbH Air Liquide Brasil Ltda., AirSteel Ltda., White Martins Gases Industriais Ltda., White Martins Steel Ltda. and ThyssenKrupp MinEnergy GmbH [Member] Air Liquide Brasil Ltda., AirSteel Ltda., White Martins Gases Industriais Ltda., White Martins Steel Ltda. and ThyssenKrupp MinEnergy GmbH [Member] Remeasurement of post employment benefit obligations from participation in non-consolidated companies Other comprehensive income, net of tax, gains (losses) on remeasurements of defined benefit plans of associates and joint ventures accounted for using equity method Other comprehensive income, net of tax, gains (losses) on remeasurements of defined benefit plans of associates and joint ventures accounted for using equity method Financing Receivables, Equal to Greater than 1 Day Past Due Financing Receivables, Equal to Greater than 1 Day Past Due [Member] Financing Receivables, Equal to Greater than 1 Day Past Due [Member] Adjustments related to post-retirement benefits and contingencies Adjustment For Post-retirement Benefit And Contingencies Adjustment For Post-retirement Benefit And Contingencies Reversals Other reversals of provisions, non-current Other reversals of provisions, non-current Ternium Investments S.a.r.l & Ternium Internacional Espana S.L. Ternium Investments S.a.r.l & Ternium Internacional Espana S.L. [Member] Ternium Investments S.a.r.l & Ternium Internacional Espana S.L. [Member] Dividends paid in cash to non-controlling interest Dividends paid to non-controlling interests, classified as financing activities Guarantor Obligations, Nature [Domain] Guarantor Obligations, Nature [Domain] [Domain] for Guarantor Obligations, Nature [Axis] Estimate of contributions expected to be paid to plan for next five years Estimate of contributions expected to be paid to plan for next annual reporting period Transmission System Transmission System [Member] Transmission System Ternium Investments S.à r.l. Ternium Investments S.à r.l. [Member] Ternium Investments S.à r.l. Other products Other products [Member] Other products Tecpetrol Tecpetrol and Energy Consulting Services S.A [Member] Tecpetrol and Energy Consulting Services S.A ALLOWANCES AND PROVISIONS - NON-CURRENT AND CURRENT Disclosure of provisions [text block] Statement of cash flows [abstract] Statement of cash flows [abstract] Investments funds Investment funds, amount contributed to fair value of plan assets Prosid Investments S.A. Prosid Investments S.A. [Member] Prosid Investments S.A. Recovery of income tax Adjustments for current tax of prior periods Disclosure of maturity analysis of finance lease payments receivable [table] Disclosure of maturity analysis of finance lease payments receivable [table] Provision for tax losses Provision For Tax Losses Provision For Tax Losses Counterparty Name [Domain] Counterparty Name [Domain] Others Miscellaneous financial income (cost) Miscellaneous financial income (cost) Post-employment benefits Post-employment benefit expense in profit or loss, defined benefit plans Uses Provision used, other provisions, current Provision used, other provisions, current Armac Locacao Logistica e Servicos S.A. Armac Locacao Logistica e Servicos S.A. [Member] Armac Locacao Logistica e Servicos S.A. Disclosure of products and services [line items] Disclosure of products and services [line items] Borrowing Costs Description of accounting policy for borrowing costs [text block] Receivables, net Current Assets, Receivables, Net Current Assets, Receivables, Net CSN CSN [Member] CSN Current liabilities Current liabilities [abstract] Brazil BRAZIL Customer relationships and other contractual rights Customer-related intangible assets [member] Results of sundry assets Results of sundry assets Results of sundry assets Disclosure of Maturities of Borrowings Disclosure Of Maturities Of Borrowings [Table Text Block] Disclosure Of Maturities Of Borrowings [Table Text Block] Investments in non-consolidated companies Investments in non-consolidated companies, beginning balance Investments in non-consolidated companies, ending balance Investments accounted for using equity method Scenario two Number Two [Member] Number Two [Member] Long term purchase commitment, maximum volume Long Term Purchase Commitment, Maximum Volume Long Term Purchase Commitment, Maximum Volume Total expense Increase (decrease) in net defined benefit liability (asset) resulting from expense (income) in profit or loss Disclosure of fair value measurement of assets [line items] Disclosure of fair value measurement of assets [line items] Disclosure of transactions between related parties [line items] Disclosure of transactions between related parties [line items] Tenaris Investments S.a.r.l. Tenaris Investments S.a.r.l. [Member] Tenaris Investments S.a.r.l. [Member] Other comprehensive income (loss) for the period Other comprehensive income [abstract] Disclosure of detailed information about hedging instruments [line items] Disclosure of detailed information about hedging instruments [line items] Income tax relating to cash flow hedges Income tax relating to cash flow hedges included in other comprehensive income Credit Insurance Credit Insurance [Member] Credit Insurance [Member] Tubos Argentinos S.A. Tubos Argentinos S.A. [Member] Tubos Argentinos S.A. 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Ternium Gas México S.A. de C.V. [Member] Ternium Gas México S.A. de C.V. Additions Additions to right-of-use assets Consorcio Minero Benito Juarez Peña Colorada S.A.de C.V. & Exiros B.V. Consorcio Minero Benito Juarez Peña Colorada S.A.de C.V. & Exiros B.V. (9) [Member] Consorcio Minero Benito Juarez Peña Colorada S.A.de C.V. & Exiros B.V. (9) Initial public offering expenses Initial public offering expenses [Member] Initial public offering expenses [Member] Mexico Steel GCU Mexico Steel GCU [Member] Mexico Steel GCU Asset retirement obligations Description Of Accounting Policy For Asset Retirement Obligations [Policy Text Block] Description of Accounting Policy for Asset Retirement Obligations [Policy Text Block] Guaranteed Trade receivables guaranteed [Member] Trade receivables guaranteed [Member] Derivative financial instruments and hedging activities Description of accounting policy for derivative financial instruments and hedging [text block] TARIFFS ON IMPORTS IN THE UNITED STATES Tariffs On Imports [Text Block] Tariffs On Imports Fair value of plan assets Plan assets [member] Depreciation of property, plant and equipment Depreciation, property, plant and equipment, SG&A Depreciation, property, plant and equipment, SG&A 24 Distributos (CCEAR) 24 Distributos (CCEAR) [Member] 24 Distributos (CCEAR) Translation differences, current lease liabilities Increase (Decrease) Through Net Exchange Differences, Current Lease Liabilities Increase (Decrease) Through Net Exchange Differences, Current Lease Liabilities BASIS OF PRESENTATION Disclosure of notes and other explanatory information [text block] The disclosure of notes and other explanatory information as part of a complete set of financial statements. 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LSI Logistica S.A. [Member] LSI Logistica S.A. [Member] Disposals / Consumptions Disposals, intangible assets and goodwill Reclassifications Increase (decrease) through reclassifications, liabilities arising from financing activities Increase (decrease) through reclassifications, liabilities arising from financing activities Types of customers Types of customers [domain] Estimated tax result Estimated Tax Result Estimated Tax Result Commodities contracts Commodity Contracts [Member] Commodity Contracts Disclosure of reconciliation of liabilities arising from financing activities [line items] Disclosure of reconciliation of liabilities arising from financing activities [line items] Percentage of electricity capacity supplied Percentage Of Electricity Capacity Supplied Percentage Of Electricity Capacity Supplied Unused tax losses for which no deferred tax asset recognised Unused tax losses for which no deferred tax asset recognised Techint Holdings S.à.r.l Techint Holdings S.à.r.l [Member] Techint Holdings S.à.r.l [Member] Other Non-current miscellaneous other liabilities Non-current miscellaneous other liabilities Amortisation Period, Certain Projects Amortisation Period, Certain Projects Amortisation Period, Certain Projects Categories of financial assets [axis] Categories of financial assets [axis] Translation differences Increase (decrease) through net exchange differences, deferred tax liability (asset) Amortization of intangible assets Amortisation, intangible assets other than goodwill, Cost of Sales Amortisation, intangible assets other than goodwill, Cost of Sales Long-term purchase commitment, renewal period Long-Term Purchase Commitment, Renewal Period Long-Term Purchase Commitment, Renewal Period Not guaranteed Trade receivables not guaranteed [Member] Trade receivables not guaranteed [Member] Trade payables Adjustments for increase (decrease) in trade accounts payable Products and services [axis] Products and services [axis] Other provisions Other provisions Other Other Fixed Income [Member] Other Fixed Income Other Other temporary differences [member] Financial liabilities Total Liabilities Financial liabilities Solar Energy Solar Energy [Member] Solar Energy Income tax expense Income tax expense Tax accrued Tax expense (income) Argentine Pesos-Denominated Instruments Argentine Pesos-Denominated Instruments [Member] Argentine Pesos-Denominated Instruments Trading average price period Derivative Financial Assets, Trading Average Share Price Derivative Financial Assets, Trading Average Share Price VLI Multimodal S.A. VLI Multimodal S.A. [Member] VLI Multimodal S.A. 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Techgen S.A. de C.V. [Member] Techgen S.A. de C.V. [Member] Lease liabilities Gross lease liabilities Trademarks Brand names [member] Ternium Internationaal B.V. Ternium Internationaal B.V. [Member] Ternium Internationaal B.V. Effective Portion Of Designated Cash Flow Hedges Effective Portion Of Designated Cash Flow Hedges [Member] Effective Portion Of Designated Cash Flow Hedges Servicios Integrales Nova de Monterrey S.A. de C.V. Servicios Integrales Nova de Monterrey S.A. de C.V. [Member] Servicios Integrales Nova de Monterrey S.A. de C.V. Profit or loss [abstract] Profit or loss [abstract] Profit from continuing operations attributable to non-controlling interests Profit (loss) from continuing operations attributable to non-controlling interests Steel Steel [Member] Steel [Member] Land Land [member] Financial liabilities [abstract] Disclosure of financial liabilities [abstract] Classes of assets [axis] Classes of assets [axis] Trade payables Trade payables Operating segments Operating segments [member] Roll-formed and tubular Roll-formed and tubular [Member] Roll-formed and tubular Items of contingent liabilities [axis] Items of contingent liabilities [axis] Capital and reserves attributable to the owners of the parent Equity attributable to owners of parent Income tax related to financial instruments at fair value Income tax relating to financial assets measured at fair value through other comprehensive income included in other comprehensive income Transportadora de Gas del Norte S.A. and Energy Consulting Services S.A. Transportadora de Gas del Norte S.A. [Member] Transportadora de Gas del Norte S.A. 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Ternium Internacional Nicaragua S.A. [Member] Ternium Internacional Nicaragua S.A. Effect of experience adjustments Decrease (increase) in net defined benefit liability (asset) resulting from actuarial gains (losses) arising from experience adjustments Contingent liability, legal proceedings, arbitration reward Contingent Liability, Legal Proceedings, Arbitration Award Contingent Liability, Legal Proceedings, Arbitration Award Categories of related parties Categories of related parties [domain] Cash flow Description of accounting policy for cash flows [text block] Litigation Case [Domain] Litigation Case [Domain] [Domain] for Litigation Case [Axis] Trade receivables Non-Current Trade Receivables, Gross Non-Current Trade Receivables, Gross Disclosure of other provisions [table] Disclosure of other provisions [table] Provisions Non-current provisions, beginning of the year Non-current provisions, end of the year Other non-current provisions Civil And Other Contingencies Recognized As Part Of The Business Combination Civil And Other Contingencies Recognized As Part Of The Business Combination [Member] Civil And Other Contingencies Recognized As Part Of The Business Combination Other Investments - Current and Non-Current Other Investments - Current and Non-Current [Member] Other Investments - Current and Non-Current Classes of financial instruments Classes of financial instruments [domain] Disclosure of detailed information about business combination [table] Disclosure of detailed information about business combination [table] Receivables Receivables Receivables Translation differences Increase (decrease) through net exchange differences, property, plant and equipment including right-of-use assets Number of payment methods for post retirement plans Number Of Payment Methods Towards Post Retirement Plans Number Of Payment Methods Towards Post Retirement Plans Auditor Location Auditor Location Ternium Ternium [Member] Ternium [Member] Interest received Interest received, classified as operating activities Other comprehensive loss that will be reclassified to profit or loss, before tax Other comprehensive income that will be reclassified to profit or loss, before tax Mexico Syndicated Loan Agreement Mexico Syndicated Loan Agreement Origination Date Of July 2025 [Member] Mexico Syndicated Loan Agreement Origination Date Of July 2025 Provision for legal claims and other matters Provision for legal claims and other matters, net reversals Provision for legal claims and other matters, net reversals Other notes Other Notes [Member] Other Notes Dividends from non-consolidated companies Dividends received from investments accounted for using equity method, classified as investing activities Litigation Status [Domain] Litigation Status1 [Domain] [Domain] for Litigation Status [Axis] Condensed Balance Sheet Statement [Table] Condensed Balance Sheet Statement [Table] Reasonably possible change in risk variable, impact on equity Sensitivity Analysis For Types Of Market Risk, Reasonably Possible Change In Risk Variable, Impact On Equity Sensitivity Analysis For Types Of Market Risk, Reasonably Possible Change In Risk Variable, Impact On Equity Products and services Products and services [domain] Disclosure of Operating Segments Disclosure of operating segments [text block] Auditor's remuneration for audit-related services Auditor's remuneration for audit-related services Auditor's remuneration for audit-related services Weighted average number of shares outstanding (in shares) Weighted average number of ordinary shares used in calculating basic earnings per share Impairment charge Write-Downs (Reversals) Of Property, Plant And Equipment, And Intangible Assets And Goodwill Write-Downs (Reversals) Of Property, Plant And Equipment, And Intangible Assets And Goodwill Gain from the agreement related to the post-retirement benefits from Usiminas Post-employment benefit expense in profit or loss Cash and cash equivalents Cash And Cash Equivalents1 [Member] Cash And Cash Equivalents1 [Member] Stripping costs Description of accounting policy for stripping costs [text block] Reclassifications, non-current lease liabilities Reclassifications, Non-Current Lease Liabilities Reclassifications, Non-Current Lease Liabilities Changes in Deferred Tax Assets and Liabilities Disclosure of temporary difference, unused tax losses and unused tax credits [text block] Advances to suppliers, related party transactions Current advances to suppliers Metalcentro Ltda. Metalcentro Ltda. [Member] Metalcentro Ltda. Disclosure of detailed information about intangible assets [table] Disclosure of detailed information about intangible assets [table] Key management personnel compensation, share-based payment Key management personnel compensation, share-based payment Borrowings Total Financial Debt Borrowings Change in fair value of financial assets Gains (losses) on financial assets at fair value through profit or loss Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer The T/T Group, The NSC Group, And Previdência Usiminas The T/T Group, The NSC Group, And Previdência Usiminas [Member] The T/T Group, The NSC Group, And Previdência Usiminas Long-term purchase commitment, take or pay volume Long-Term Purchase Commitment, Take Or Pay Volume Long-Term Purchase Commitment, Take Or Pay Volume Ore Export Loading Ore Export Loading [Member] Ore Export Loading Schedule of Changes in Intangible Assets, Net Schedule of changes in intangible assets and goodwill [Table Text Block] Schedule of changes in intangible assets and goodwill [Table Text Block] Long-term purchase commitment, minimum percentage of volume required Long-term Purchase Commitment, Minimum Percentage of Volume Required Long-term Purchase Commitment, Minimum Percentage of Volume Required Schedule of Current Receivables Schedule of current receivables [Table Text Block] Schedule of current receivables [Table Text Block] (Decrease) increase in cash and cash equivalents Increase (decrease) in cash and cash equivalents after effect of exchange rate changes Impairment charge Impairment loss recognised in profit or loss, property, plant and equipment Translation differences, non-current lease liabilities Increase (Decrease) Through Net Exchange Differences, Non-Current Lease Liabilities Increase (Decrease) Through Net Exchange Differences, Non-Current Lease Liabilities Short term borrowings Short-term borrowings [member] Subordinated liabilities Subordinated liabilities Net cash used in financing activities Cash flows from (used in) financing activities Reciprocal tariffs, all countries Tariffs Announced, Reciprocal Tariffs, All Countries [Member] Tariffs Announced, Reciprocal Tariffs, All Countries Others Current miscellaneous other liabilities Current miscellaneous other liabilities Counterparties [axis] Counterparties [axis] Earnings per share Description of accounting policy for earnings per share [text block] Bank borrowings, current Bank borrowings, undiscounted cash flows, current Bank borrowings, undiscounted cash flows, current Preferred shares Preference shares [member] Capital expenditures and advances to suppliers for PP&E Purchase Of Property, Plant And Equipment And Advances To Suppliers, Classified As Investing Activities Purchase Of Property, Plant And Equipment And Advances To Suppliers, Classified As Investing Activities Others Other expense, by function, Cost of Sales Other expense, by function, Cost of Sales Asset retirement obligation Asset Retirement Obligation [Member] Asset Retirement Obligation Equity in earnings of non-consolidated companies Share of profit (loss) of associates and joint ventures accounted for using equity method including impairment Share of profit (loss) of associates and joint ventures accounted for using equity method including impairment Entity Current Reporting Status Entity Current Reporting Status At the end of the year Plan assets, at fair value Statement of changes in equity [table] Statement of changes in equity [table] Actuarial assumptions [axis] Actuarial assumptions [axis] Long-term purchase commitment, electrical demand Long-Term Purchase Commitment, Electrical Demand Long-Term Purchase Commitment, Electrical Demand Commodity Derivatives Commodity Derivatives [Member] Commodity Derivatives Disclosure of income tax [Abstract] Disclosure of income tax [Abstract] Disclosure of income tax [Abstract] Disclosure of Products and Services Disclosure of products and services [text block] Plan Name [Axis] Plan Name1 [Axis] Plan Name [Axis] Disclosure of additional information [Abstract] Disclosure of additional information [Abstract] Disclosure of additional information [Abstract] Ternium Internacional El Salvador S.A. de C.V. Ternium Internacional El Salvador S.A. de C.V. [Member] Ternium Internacional El Salvador S.A. de C.V. Ternium USA Inc. Ternium USA Inc. [Member] Ternium USA Inc. 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And Mineração Usiminas S.A. Usinas Siderúrgicas de Minas Gerais S.A. And Mineração Usiminas S.A. [Member] Usinas Siderúrgicas de Minas Gerais S.A. And Mineração Usiminas S.A. 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Ternium S.A. [Member] Ternium S.A. [Member] Analysis of income and expense [abstract] Analysis of income and expense [abstract] Schedule of Sensitivity of the Defined Benefit Obligation to Changes in the Weighted Principal Assumptions Disclosure of sensitivity analysis for actuarial assumptions [text block] Interest paid, current lease liabilities Interest Expense, Current Lease Liabilities Interest Expense, Current Lease Liabilities Depreciation and amortization Depreciation and amortisation expense Deferred compensation share-based arrangements, liability Deferred Compensation Share-based Arrangements, Liability Deferred Compensation Share-based Arrangements, Liability Business Contact Business Contact [Member] Discount rate used in current estimate of value in use Discount rate used to test investment for impairment Discount rate used in current estimate of value in use LIABILITIES Liabilities [abstract] Contributions paid Funding of the plan Decrease (increase) in net defined benefit liability (asset) resulting from payments from plan Change in asset ceiling Gains (losses) on changes in effect of limiting net defined benefit asset to asset ceiling excluding interest income or expense, before tax, defined benefit plans Transfers Increase (decrease) through transfers, right-of-use assets Guarantor obligations, percentage Guarantor Obligations, Percentage Guarantor Obligations, Percentage Wide Group of Small Investors Wide Group Of Small Investors [Member] Wide Group Of Small Investors Categories of financial assets Categories of financial assets [domain] Provisions [abstract] Provisions [abstract] Carrying amount Carrying amount [member] Transfers Increase (decrease) through transfers from construction in progress, property, plant and equipment including right-of-use assets Ternium Internacional España S.L. and Ternium Mexico S.A. de C.V. Ternium Internacional España S.L. and Ternium Mexico S.A. de C.V. [Member] Ternium Internacional España S.L. and Ternium Mexico S.A. de C.V. Derivative financial instruments Current derivative financial assets Air Liquide Argentina S.A. Air Liquide Argentina S.A. [Member] Air Liquide Argentina S.A. [Member] Tax reserve Tax reserve Tax reserve External Customers External Customers [Member] External Customers Changes in equity [abstract] Changes in equity [abstract] Advances to suppliers for property, plant and equipment classified as investing activities Advances To Suppliers For Property, Plant And Equipment Classified As Investing Activities Advances To Suppliers For Property, Plant And Equipment Classified As Investing Activities Security Exchange Name Security Exchange Name Current service cost Current service cost, defined benefit plans Net liability (asset) in the statement of financial position Net defined benefit liability (asset) - beginning balance Net defined benefit liability (asset) - ending balance Net defined benefit asset Net defined benefit asset Net defined benefit liability (asset) Bonds Borrowings, Bonds [Member] Borrowings, Bonds Estimated tax loss Estimated Tax Loss Estimated Tax Loss Mexico Mining GCU Mexico Mining GCU [Member] Mexico Mining GCU Receivables with related parties Non-current receivables due from related parties Usiminas Bonds Due July 2026 Usiminas Bonds Origination Date Of July 2019 [Member] Usiminas Bonds Origination Date Of July 2019 Other employee benefits Non-current provisions for employee benefits Right-of-use assets, beginning balance Right-of-use assets, ending balance Right-of-use assets Compensation growth rate Actuarial assumption of expected rates of salary increases [member] Contact Personnel Name Contact Personnel Name Percentage of equity interest Percentage of voting equity interests acquired Percentage of voting equity interests acquired Short-term bank deposits Short-term deposits, classified as cash equivalents Other investments Other investments - Current Current investments Minimum monthly consumption volume Long Term Purchase Commitment, Minimum Monthly Consumption Volume Long Term Purchase Commitment, Minimum Monthly Consumption Volume Environmental Remediation [Axis] Environmental Remediation [Axis] Environmental Remediation Long-term purchase commitment, annual cost Long-Term Purchase Commitment, Annual Cost Long-Term Purchase Commitment, Annual Cost Internal Material Handling Services Internal Material Handling Services [Member] Internal Material Handling Services Mexico MEXICO Disclosure of changes in accounting estimates [table] Disclosure of changes in accounting estimates [table] Usiminas Mecânica S.A. Usiminas Mecânica S.A. [Member] Usiminas Mecânica S.A. Disclosure of Geographical Areas Disclosure of geographical areas [text block] Items that may be reclassified subsequently to profit or loss: Components of other comprehensive income that will be reclassified to profit or loss, net of tax [abstract] Contracts with positive fair value Financial assets, at fair value Financial assets, at fair value beginning balance Financial assets, at fair value ending balance Financial assets, at fair value Derivative financial instruments Derivatives [member] Remeasurement of previously held interest in Usiminas Remeasurement of previously held interest in Usiminas Acquisition-date fair value of equity interest in acquiree held by acquirer immediately before acquisition date Debt Instrument1 [Domain] Debt Instrument1 [Domain] Debt Instrument1 [Domain] Provisions and allowances - Current Current provisions [abstract] Major business combination Major business combination [member] Tax losses Unused tax losses [member] Expense relating to short-term leases for which recognition exemption has been used Expense relating to short-term leases for which recognition exemption has been used Disposals / Consumptions Disposals, right-of-use assets Number of stand-by letters of credit Number of Stand-By Letters of Credit Number of Stand-By Letters of Credit Currency translation adjustment Reserve of exchange differences on translation [member] Liabilities arising from financing activities [axis] Liabilities arising from financing activities [axis] Others Other expense, by function, SG&A Other expense, by function, SG&A Disclosure of significant accounting policies [Abstract] Disclosure of significant accounting policies [Abstract] Disclosure of significant accounting policies [Abstract] Ternium Colombia S.A.S., Ternium del Cauca S.A.S., Ternium del Atlántico S.A.S, Ternium Procurement S.A. , & Technology & Engineering Services S.A. Ternium Colombia S.A.S., Ternium del Cauca S.A.S., Ternium del Atlántico S.A.S, Ternium Procurement S.A. , & Technology & Engineering Services S.A. [Member] Ternium Colombia S.A.S., Ternium del Cauca S.A.S., Ternium Siderúrgica de Caldas S.A.S., Ternium del Atlántico S.A.S, Ternium Procurement S.A. , & Technology & Engineering Services S.A. Schedule of Trade Receivables Schedule of trade receivables [Table Text Block] Schedule of trade receivables [Table Text Block] Useful lives or amortisation rates, intangible assets other than goodwill Useful life measured as period of time, intangible assets other than goodwill Technology & Engineering Services S.A. Technology & Engineering Services S.A. [Member] Technology & Engineering Services S.A. Classes of share capital [axis] Classes of share capital [axis] Provisions and allowances - Non current Non-current provisions [abstract] Expense relating to variable lease payments not included in measurement of lease liabilities Expense relating to variable lease payments not included in measurement of lease liabilities Other receivables Other Receivables As Of Acquisition Date Other Receivables As Of Acquisition Date Interest accrued, lease liabilities Increase (Decrease) Through Interest Accrued, Lease Liabilities Increase (Decrease) Through Interest Accrued, Lease Liabilities Non-Consolidated Companies [Domain] Non-Consolidated Companies [Domain] [Domain] for Non-Consolidated Companies [Axis] Non deductible expenses Tax effect of expense not deductible in determining taxable profit (tax loss) Disclosure of How the Entity Manages Liquidity Risk Disclosure of how entity manages liquidity risk [text block] Number of shares authorised (in shares) Number of shares authorised Total Equity Beginning balance Ending balance Equity Equity Techgen S.A. de C.V. Syndicated Loan Due February 2026 Techgen S.A. de C.V. Syndicated Loan Due February 2026 [Member] Techgen S.A. de C.V. Syndicated Loan Due February 2026 Entity Addresses, Address Type [Axis] Entity Addresses, Address Type [Axis] Property, plant and equipment, net Property, plant and equipment Guarantor obligations, outstanding Guarantor Obligations, Outstanding Guarantor Obligations, Outstanding Gross profit Gross profit Tender offer, number of shares Tender offer, number of shares Tender offer, number of shares Galvacer Chile S.A. Galvacer Chile S.A. [Member] Galvacer Chile SA [Member] Schedule of Reconciliation of Changes in Financial Debt Schedule of reconciliation of changes in financial debt [Table Text Block] Schedule of reconciliation of changes in financial debt [Table Text Block] Financing Receivables, Period Past Due [Axis] Financing Receivables, Period Past Due1 [Axis] Financing Receivables, Period Past Due [Axis] Repayment of additional paid in capital Repayment Of Additional Paid In Capital Repayment Of Additional Paid In Capital Other liabilities Other liabilities – Current Other current liabilities Usiminas Debentures -10th Emission Origination Date Of August 2024 Usiminas Debentures -10th Emission Origination Date Of August 2024 [Member] Usiminas Debentures -10th Emission Origination Date Of August 2024 Schedule of Amounts Recognized in Income Statement Disclosure Of Defined Benefit Plan Expense Recognized In Profit Or Loss Explanatory [Table Text Block] Disclosure Of Defined Benefit Plan Expense Recognized In Profit Or Loss Explanatory [Table Text Block] Items that will not be reclassified subsequently to profit or loss: Components of other comprehensive income that will not be reclassified to profit or loss, net of tax [abstract] Level 1 Level 1 of fair value hierarchy [member] Taxes paid Income taxes paid (refund) Reciprocal tariffs, Brazil and Argentina Tariffs Announced, Reciprocal Tariffs, Brazil And Argentina [Member] Tariffs Announced, Reciprocal Tariffs, Brazil And Argentina Disclosure of detailed information about property, plant and equipment [line items] Disclosure of detailed information about property, plant and equipment [line items] Number of other board officers Number Of Other Board Officers Number Of Other Board Officers Total Provision for contingencies Contingent liabilities recognised in business combination Contingent liabilities recognised as of acquisition date Intangible assets with indefinite useful life [domain] Intangible assets with indefinite useful life [domain] Objection filed against the decision that recognized only partially the credit rights established in a final and unappealable court decision that determined the exclusion of ICMS amounts from the calculation basis of PIS/COFINS-Imports. Calculation Basis PIS/COFINS-Imports [Member] Calculation Basis PIS/COFINS-Imports Level 2 Level 2 of fair value hierarchy [member] Sales of goods, related party transactions Revenue from sale of goods, related party transactions Deposit certificates and investment funds Deposit Certificates And Investment Funds [Member] Deposit Certificates And Investment Funds Provision for ongoing litigation related to the acquisition of a participation in Usiminas Provision For Ongoing Litigation Related To The Acquisition Of A Participation In A Subsidiary Provision For Ongoing Litigation Related To The Acquisition Of A Participation In A Subsidiary Ternium Internacional Guatemala S.A. Ternium Internacional Guatemala S.A. [Member] Ternium Internacional Guatemala S.A. Owners of the parent Profit (loss), attributable to owners of parent Tax assessment notice issued by the State of Minas Gerais concerning alleged reversal of ICMS credits on sale of electrical energy. Reversal Of ICMS Credits [Member] Tax assessment notice issued by the State of Minas Gerais Changes in provisions Adjustments for provisions Schedule of Non-Current Receivables Schedule of non-current receivables [Table Text Block] Schedule of non-current receivables [Table Text Block] Assets (disposal groups) classified as held for sale Description of accounting policy for non-current assets or disposal groups classified as held for sale [text block] Non-cash effects related to the increase of the participation in Usiminas Non-cash Effects Related To The Increase Of The Participation In Subsidiary Non-cash Effects Related To The Increase Of The Participation In Subsidiary Repayments, current, lease liabilities Payments Of Lease Liabilities, Current, Classified As Financing Activities Payments Of Lease Liabilities, Current, Classified As Financing Activities Disclosure of changes in accounting estimates [line items] Disclosure of changes in accounting estimates [line items] Non-cash items impacting working capital Other adjustments for non-cash items Primetals Technologies Brazil Ltda. Primetals Technologies Brazil Ltda. [Member] Primetals Technologies Brazil Ltda. [Member] Dividends paid, USD per ADS (in dollars per american depository share) Dividends paid, United States Dollar per American Depositary Share Dividends paid, United States Dollar per American Depositary Share Current liabilities Current liabilities Current liabilities Cash flow hedges Cash flow hedges [member] Disclosure of Interest in Non-Consolidated Companies Disclosure of Interest in Non-Consolidated Companies [Table Text Block] Disclosure of Interest in Non-Consolidated Companies [Table Text Block] Translation differences Increase (decrease) through net exchange differences, other provisions, current Increase (decrease) through net exchange differences, other provisions, current Tax proceeding in which the tax authorities seek the reversal of ICMS/SP credits on materials considered as consumables (refractory items and others). Tax Proceedings [Member] Tax Proceedings Dividends from non-consolidated parties Dividends received Tenaris Investments Tenaris [Member] Tenaris Trade and other receivables [abstract] Trade and other receivables [abstract] Jaiba O Energias Renovaveis S.A. Jaiba O Energias Renovaveis S.A. [Member] Jaiba O Energias Renovaveis S.A. Disclosure of entity's operating segments [Abstract] Disclosure of entity's operating segments [Abstract] Disclosure of entity's operating segments [Abstract] Industrial Gas Industrial Gas [Member] Industrial Gas Inventories, net Inventories at the beginning of year Inventories at the beginning of year Inventories, net  Current inventories Deferred tax assets Deferred tax assets Disclosure of notes and other explanatory information [Abstract] Disclosure of notes and other explanatory information [Abstract] Disclosure of notes and other explanatory information [Abstract] Non-controlling interest Non-controlling interests [member] Non-controlling interest Comprehensive income, attributable to non-controlling interests Repayments, non-current lease liabilities Repayments, Non-Current Lease Liabilities Repayments, Non-Current Lease Liabilities Interest accrued Interest Accrual Expense Interest Accrual Expense Loss on the remeasurement of previously held interest in Usiminas Loss on the remeasurement of previously held interest in Usiminas Gain (loss) recognised as result of remeasuring to fair value equity interest in acquiree held by acquirer before business combination Document Accounting Standard Document Accounting Standard Indexation, current lease liabilities Indexation, Current Lease Liabilities Indexation, Current Lease Liabilities Mining assets Mining rights [member] Payroll and social security payable Current payables on social security and taxes other than income tax Mineração Usiminas S.A. Mineração Usiminas S.A. [Member] Mineração Usiminas S.A. Other assets and liabilities, net Other Assets And Liabilities, Net As Of Acquisition Date Other Assets And Liabilities, Net As Of Acquisition Date American Depositary Shares American Depository Shares [Member] American Depository Shares Percentage of Company shares owned Percentage of shares owned in the Company Percentage of shares owned in the Company Disclosure of temporary difference, unused tax losses and unused tax credits [line items] Disclosure of temporary difference, unused tax losses and unused tax credits [line items] Gains (losses) on cash flow hedges, net of tax Other comprehensive income (loss), (decrease)/increase, net of tax Other Comprehensive Income (Loss), Increase (Decrease), Net of Tax Other Comprehensive Income (Loss), Increase (Decrease), Net of Tax Asset retirement obligation Asset Retirement Obligation, Noncurrent Asset Retirement Obligation, Noncurrent Quoted price (in BRL per share) Quoted Price Of Share In Subsidiary Quoted Price Of Share In Subsidiary Other operating income (expenses), net [Abstract] Other operating income (expenses), net [Abstract] Other operating income (expenses), net [Abstract] Debt to capital ratio Debt-To-Capital Ratio Debt-To-Capital Ratio Transportation Services Transportation Services [Member] Transportation Services Other operating expense Other operating expense Other operating expense Ternium Brasil Ltda. Ternium Brasil Ltda. [Member] Ternium Brasil Ltda. [Member] Statement of changes in equity [abstract] Statement of changes in equity [abstract] Decrease in assumption, Impact on defined benefit obligation Percentage Increase (Decrease) In Defined Benefit Obligation Due To Reasonably Possible Decrease In Actuarial Assumption Percentage Increase (Decrease) In Defined Benefit Obligation Due To Reasonably Possible Decrease In Actuarial Assumption Disclosure of Detailed Information About Business Combination Disclosure of detailed information about business combination [text block] Las Encinas S.A. de C.V., Ferropak Comercial S.A. de C.V., Transamerica E. & I. Trading Corp. & Galvacer Chile S.A. Las Encinas S.A. de C.V., Ferropak Comercial S.A. de C.V., Transamerica E. & I. Trading Corp. & Galvacer Chile S.A. [Member] Las Encinas S.A. de C.V., Ferropak Comercial S.A. de C.V., Transamerica E. & I. Trading Corp. & Galvacer Chile S.A. Effect of changes in financial assumptions Decrease (increase) in net defined benefit liability (asset) resulting from actuarial gains (losses) arising from changes in financial assumptions Maximum exposure to credit risk Maximum exposure to credit risk Disclosure of detailed information about financial instruments [line items] Disclosure of detailed information about financial instruments [line items] Electric Power Electric Power [Member] Electric Power Porto Sudeste do Brasil S.A. Porto Sudeste do Brasil S.A. [Member] Porto Sudeste do Brasil S.A. Number of networks managed Number Of Kilometres Of Network Managed Number Of Kilometres Of Network Managed Previdência Usiminas Previdência Usiminas [Member] Previdência Usiminas [Member] Receivables, net [Abstract] Receivables, net [Abstract] Receivables, net [Abstract] Types of risks Types of risks [domain] Trade receivables Adjustments for decrease (increase) in trade and other receivables Legal Entity [Axis] Legal Entity [Axis] Contact Personnel Fax Number Contact Personnel Fax Number Derivative financial instruments Derivative financial assets Ternium Argentina S.A. and Ternium Internacional Espana S.L.U. Ternium Argentina S.A. and Ternium Internacional Espana S.L.U. [Member] Ternium Argentina S.A. and Ternium Internacional Espana S.L.U. 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And Prosid Ternium Argentina And Prosid [Member] Ternium Argentina And Prosid Mobile Equipment Rental Mobile Equipment Rental [Member] Mobile Equipment Rental Advances to suppliers for the purchase of property, plant and equipment with related parties Non-current prepayments, related parties Non-current prepayments, related parties Disclosure of non-adjusting events after reporting period [line items] Disclosure of non-adjusting events after reporting period [line items] Receivables, net Receivables, net – Non-current Non-current receivables other than trade receivables, net Non-current receivables, net Rios Unidos logistica e transporte de açõ Ltda. Rios Unidos logistica e transporte de açõ Ltda. [Member] Rios Unidos logistica e transporte de açõ Ltda. Bank borrowings, non-current Bank borrowings, undiscounted cash flows, non-current Bank borrowings, undiscounted cash flows, non-current Disclosure of Transactions Between Related Parties Disclosure of transactions between related parties [text block] Disclosure of Detailed Information About Borrowings Disclosure of detailed information about borrowings [text block] Total Equity and Liabilities Equity and liabilities United States UNITED STATES Business combinations [axis] Business combinations [axis] Reclassification adjustments on cash flow hedges, net of tax Reclassification to income statement, cash flow hedges, net of tax Reclassification from AOCI, Net of Tax Reclassification from AOCI, Net of Tax Capital Units Capital Units1 [Member] Capital Units [Member] Potential ordinary share transactions Potential ordinary share transactions [member] Other tax contingencies Tax contingent liability [member] Business combinations Business combinations [domain] Non-deliverable forward contract Non-deliverable forward contract [Member] Non-deliverable forward contract [Member] Other investments Other investments Other investments Minimum daily consumption volume Long-Term Purchase Commitment, Minimum Daily Consumption Volume Long-Term Purchase Commitment, Minimum Daily Consumption Volume Contingent liability, legal proceedings, original claim Contingent Liability, Legal Proceedings, Original Claim Contingent Liability, Legal Proceedings, Original Claim Ternium Investments S.à r.l., Prosid Investments S.A. And Ternium Argentina S.A. Ternium Investments S.à r.l., Prosid Investments S.A. And Ternium Argentina S.A. [Member] Ternium Investments S.à r.l., Prosid Investments S.A. And Ternium Argentina S.A. Depreciation of property, plant and equipment Depreciation, property, plant and equipment, Cost of Sales Depreciation, property, plant and equipment, Cost of Sales Other civil and other contingencies Other Civil And Other Contingencies [Member] Other Civil And Other Contingencies Fixed income Fixed Income, Amount Contributed To Fair Value Of Plan Assets Fixed Income, Amount Contributed To Fair Value Of Plan Assets Buildings and facilities Buildings and Facilities [Member] Buildings and Facilities [Member] Cash and cash equivalents and other current and non-current investments less borrowings Net Cash And Cash Equivalents And Other Current And Non-Current Investments Less Borrowings Net Cash And Cash Equivalents And Other Current And Non-Current Investments Less Borrowings Long term borrowings Long-term borrowings [member] Raw materials and consumables used and other movements Raw materials and consumables used Derivative instruments, gain (loss) [Line Items] Derivative instruments, gain (loss) [Line Items] [Line Items] for Derivative instruments, gain (loss) [Table] Petrobras S.A. Petrobras S.A. [Member] Petrobras S.A. Disclosure of attribution of expenses by nature to their function [table] Disclosure of attribution of expenses by nature to their function [table] Turbine Maintenance Turbine Maintenance [Member] Turbine Maintenance Less: debt issue costs, non-current Debt issuance costs, non-current Debt issuance costs, non-current Joint ventures Joint ventures [domain] Foreign exchange adjustments Increase (decrease) through effect of changes in foreign exchange rates, liabilities arising from financing activities Las Encinas Las Encinas [Member] Las Encinas [Member] Disclosure of Detailed Information About Hedging Instruments Disclosure of detailed information about hedging instruments [text block] Interest rate risk Interest rate risk [member] City Area Code City Area Code Number of shares outstanding (shares) Number Of Shares Contributed To Plan Assets Number Of Shares Contributed To Plan Assets $ US dollar ($) United States of America, Dollars Forward and non-deliverable forward contracts Forward And Non-Deliverable Forward Contracts [Member] Forward And Non-Deliverable Forward Contracts Disclosure of net defined benefit liability (asset) [table] Disclosure of net defined benefit liability (asset) [table] Audit Information [Abstract] Audit Information Functional Currency [Domain] Functional Currency [Domain] [Domain] for Functional Currency [Axis] Useful life, property, plant and equipment Useful life measured as period of time, property, plant and equipment MRS Logística S.A MRS Logística S.A [Member] MRS Logística S.A Categories of financial liabilities Categories of financial liabilities [domain] Number of shares acquired through business combination (in shares) Number Of Shares Acquired Through Business Combination Number Of Shares Acquired Through Business Combination Reclassifications Financial Assets, At Fair Value, Reclassifications Financial Assets, At Fair Value, Reclassifications Later than five years Thereafter Later than five years [member] Interest on Asset ceiling/ Onerous liability Interest Expense On Asset Ceiling, Interest Expense On Asset Ceiling, Defined Benefit Plan Interest Expense On Asset Ceiling, Interest Expense On Asset Ceiling, Defined Benefit Plan RELATED PARTY TRANSACTIONS Disclosure of related party [text block] Bonds and other fixed income Bonds and Other Fixed Income [Member] Bonds and Other Fixed Income Classes of financial assets Classes of financial assets [domain] Impairment charge Impairment loss recognised in profit or loss, intangible assets and goodwill INTANGIBLE ASSETS, NET Disclosure of intangible assets [text block] COST OF SALES Disclosure of cost of sales [text block] Level 3 Level 3 of fair value hierarchy [member] Gerdau Gerdau [Member] Gerdau Labor lawsuits filed by employees, former employees and outsourced personnel of the Cubatão Plant, claiming severance pay and social security rights. Labor Lawsuits Filed By Employees, Former Employees And Outsourced Personnel Of The Cubatão Plant [Member] Labor Lawsuits Filed By Employees, Former Employees And Outsourced Personnel Of The Cubatão Plant Transfers, new participants and funding of the plan Increase (Decrease) In Transfers, New Participants And Funding Of The Plan, Net Defined Benefit Liability (Asset) Increase (Decrease) In Transfers, New Participants And Funding Of The Plan, Net Defined Benefit Liability (Asset) Value added tax Current value added tax receivables Labour Contingencies Recognized As Part Of The Business Combination Labour Contingencies Recognized As Part Of The Business Combination [Member] Labour Contingencies Recognized As Part Of The Business Combination Charges directly to other comprehensive income Credits (Charges) directly to OCI Income tax relating to components of other comprehensive income Disposals / Consumptions Disposals, property, plant and equipment including right-of-use assets Ternium Brasil Ltda. And Usinas Siderúrgicas de Minas Gerais S.A. Ternium Brasil Ltda. And Usinas Siderúrgicas de Minas Gerais S.A. [Member] Ternium Brasil Ltda. And Usinas Siderúrgicas de Minas Gerais S.A. 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Soluciones Integrales de Gestión S.A. and Ternium Participaçoes S.A. [Member] Soluciones Integrales de Gestión S.A. and Ternium Participaçoes S.A. INVESTMENTS IN NON-CONSOLIDATED COMPANIES Disclosure of interests in other entities [text block] Capital stock issue discount Issued capital discount [Member] Issued capital discount [Member] MRS Logística S.A. MRS Logística S.A. [Member] MRS Logística S.A. 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Confab Industrial S.A. [Member] Confab Industrial S.A. [Member] Written put options Written put options [member] London Interbank Offered Rate (LIBOR) London Interbank Offered Rate (LIBOR)1 [Member] London Interbank Offered Rate (LIBOR)1 Recovery from sales of scrap and by-products Recovery from sales of scrap and by-products Recovery from sales of scrap and by-products Proposed annual dividend (in dollars per american depository share) Dividends Proposed Or Declared Before Financial Statements Authorised For Issue But Not Recognised As Distribution To Owners, United States Dollar Per American Depository Share Dividends Proposed Or Declared Before Financial Statements Authorised For Issue But Not Recognised As Distribution To Owners, United States Dollar Per American Depository Share Number of distributors Number of Distributors Number of Distributors Types of interest rates Types of interest rates [domain] Dividends not paid on Treasury Shares Dividends not paid on Treasury Shares Dividends not paid on Treasury Shares Obsolescence allowance Obsolescence allowance Obsolescence allowance Classes of other provisions [axis] Classes of other provisions [axis] Ternium Internacional Espana S.L., Ternium Solutions S.A. and Ternium Internationaal B.V. 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[Refer: Other comprehensive income] Vale S.A. and LHG Mining Vale S.A. and LHG Mining [Member] Vale S.A. and LHG Mining Cost Gross carrying amount Gross carrying amount [member] INVENTORIES, NET Disclosure of inventories [text block] Engie S.A Engie S.A [Member] Engie S.A Other liabilities Adjustments for increase (decrease) in other liabilities Scenario one Number One [Member] Number One [Member] Intangible assets Description of accounting policy for intangible assets and goodwill [text block] Currency translation adjustment Gains (losses) on exchange differences on translation of foreign operations, net of tax Local Phone Number Local Phone Number Within one year 2026 Not later than one year [member] Schedule of Condensed Statement of Comprehensive Income Schedule of condensed statement of comprehensive income [Table Text Block] Schedule of condensed statement of comprehensive income [Table Text Block] Schedule of Selling, General and Administrative Expense Schedule of selling, general and administrative expense [Table Text Block] Schedule of selling, general and administrative expense [Table Text Block] Category of Item Purchased [Domain] Category of Item Purchased [Domain] Category of Item Purchased [Domain] Disclosure of detailed information about property, plant and equipment [abstract] Disclosure of detailed information about property, plant and equipment [abstract] Limestone Limestone [Member] Limestone Southern region Southern region [Member] Southern region [Member] Labor Costs [Abstract] Labor Costs [Abstract] Labor Costs [Abstract] Other investments Other Investments As Of Acquisition Date Other Investments As Of Acquisition Date Gas Industrial de Monterrey, S.A. de C.V. Gas Industrial de Monterrey, S.A. de C.V. [Member] Gas Industrial de Monterrey, S.A.. de C.V. [Member] Long-term purchase commitment, term Long-term Purchase Commitment, Term Long-term Purchase Commitment, Term Liabilities at fair value through profit or loss Financial liabilities at fair value through profit or loss, category [member] Auditor's remuneration Auditor's remuneration Borrowings Non-current borrowings Non-current portion of non-current borrowings Inventories Adjustments for decrease (increase) in inventories Property, plant and equipment Property, plant and equipment [member] Cash transferred Total Purchase consideration Cash transferred Liabilities incurred Liabilities incurred Property, plant and equipment Description of accounting policy for property, plant and equipment [text block] Adjustments for: Adjustments To Reconcile Profit (Loss), Non-Cash [Abstract] [Abstract] Adjustments To Reconcile Profit (Loss), Non-Cash [Abstract] [Abstract] HSBC Mexico, Natixis, Credit Agricole, BNP, Santander, Intesa SP and Norinchukin HSBC Mexico, Natixis, Credit Agricole, BNP, Santander, Intesa SP and Norinchukin [Member] HSBC Mexico, Natixis, Credit Agricole, BNP, Santander, Intesa SP and Norinchukin Proceeds from borrowings Proceeds from borrowings, classified as financing activities Lease payments Repayments, lease liabilities Payments of lease liabilities, classified as financing activities Entity Voluntary Filers Entity Voluntary Filers Schedule of Other Investments Schedule of other investments [Table Text Block] Schedule of other investments [Table Text Block] Equity in earnings of non-consolidated companies Adjustments for undistributed profits of investments accounted for using equity method (Decrease) increase of allowance for doubtful accounts Impairment loss recognised in profit or loss Accumulated other comprehensive income, tax, beginning balance Accumulated other comprehensive income, tax, ending balance Accumulated Other Comprehensive Income, Tax Accumulated Other Comprehensive Income, tax Auditor's remuneration for tax services Auditor's remuneration for tax services ACQUISITION OF BUSINESS – INCREASE OF THE PARTICIPATION IN USIMINAS CONTROL GROUP AND NEW GOVERNANCE STRUCTURE OF USIMINAS Disclosure of business combinations [text block] Non-current portion, debentures Non-current portion of non-current notes and debentures issued (Decrease)/increase on cash flow hedges, before tax Other Comprehensive Income (Loss), Increase (Decrease), before Tax Other Comprehensive Income (Loss), Increase (Decrease), before Tax Derivative instruments, gain (loss) [Table] Derivative instruments, gain (loss) [Table] Derivative instruments, gain (loss) [Table] Usiminas Debentures -8th Emission Due May 2029 Usiminas Debentures -8th Emission Origination Date Of May 2022 [Member] Usiminas Debentures -8th Emission Origination Date Of May 2022 Proportion of ownership interest in subsidiary Proportion of ownership interest in subsidiary OTHER FINANCIAL INCOME (EXPENSES), NET Disclosure of other financial income (expenses), net [Text Block] Other financial income (expenses), net [Text Block] Vehicles, furniture and fixtures Vehicle, furniture and fixtures [Member] Vehicle, furniture and fixtures [Member] Reasonably possible decrease in actuarial assumption, Life expectancy Reasonably Possible Decrease In Actuarial Assumption, Years Reasonably Possible Decrease In Actuarial Assumption, Years Entity Registrant Name Entity Registrant Name Interest paid, non current lease liabilities Interest Expense, Non Current Lease Liabilities Interest Expense, Non Current Lease Liabilities Basic earnings per share for profit attributable to the owners of the parent (expressed in $ per share) Basic earnings (loss) per share Net foreign exchange results and others Adjustments for unrealised foreign exchange losses (gains) Liquidity risk Liquidity risk [member] Dividends paid in cash to non-controlling interest Dividends recognised as distributions to non-controlling interests Intangible assets with indefinite useful life [axis] Intangible assets with indefinite useful life [axis] Disclosure of commitments and contingencies [Abstract] Disclosure of commitments and contingencies [Abstract] Disclosure of commitments and contingencies [Abstract] Reclassification adjustments on exchange differences on translation, tax Reclassification to income statement, cash flow hedges, income tax Reclassification from AOCI, Tax Reclassification from AOCI, Tax Floating Floating interest rate [member] Usiminas shares Equity instruments, amount contributed to fair value of plan assets Deferred tax Deferred tax credit Deferred tax expense (income) relating to origination and reversal of temporary differences Trade receivables Trade Receivables, Temporary Differences [Member] Trade Receivables, Temporary Differences Classes of intangible assets other than goodwill [domain] Classes of intangible assets other than goodwill [domain] Net proceeds, current lease liabilities Net Proceeds, Current Lease Liabilities Net Proceeds, Current Lease Liabilities Other reserves, acquisition of noncontrolling interest in subsidiaries Other Reserves, Acquisition Of Noncontrolling Interest In Subsidiaries Other Reserves, Acquisition Of Noncontrolling Interest In Subsidiaries Classes of intangible assets and goodwill [axis] Classes of intangible assets and goodwill [axis] Comphania Siderúrgica Nacional vs. Ternium Investments S.a r.l., Ternium Argentina, & Confab Industrial S.A. Comphania Siderúrgica Nacional vs. Ternium Investments S.a r.l., Ternium Argentina, & Confab Industrial S.A. [Member] Comphania Siderúrgica Nacional vs. Ternium Investments S.a r.l., Ternium Argentina, & Confab Industrial S.A. [Member] Other comprehensive income, before tax, cash flow hedges, beginning balance Other comprehensive income, before tax, cash flow hedges, ending balance Accumulated Other Comprehensive Income, Before Tax Accumulated Other Comprehensive Income, before tax Cash and Cash Equivalents1 [Domain] Cash and Cash Equivalents1 [Domain] Cash and Cash Equivalents1 [Domain] Non-controlling interest Non-controlling interests Put option liability Put Option Liability, Current Put Option Liability, Current Changes in fair value of financial instruments at fair value through other comprehensive income Gains (losses) on financial assets measured at fair value through other comprehensive income, before tax Deferred tax assets recognized on unused tax losses Deferred tax assets recognized on unused tax losses Deferred tax assets recognized on unused tax losses Segment consolidation items [axis] Segment consolidation items [axis] Schedule of Effective Income Tax Rate Reconciliation Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Disclosure of analysis of other comprehensive income by item [table] Disclosure of analysis of other comprehensive income by item [table] Non-controlling interest Net profit attributable to non-controlling interest Profit (loss), attributable to non-controlling interests Currency [Domain] All Currencies [Domain] EQUITY Equity [abstract] Entity Addresses [Line Items] Entity Addresses [Line Items] Disclosure of detailed information about financial instruments [abstract] Disclosure of detailed information about financial instruments [abstract] Disclosure of operating segments [abstract] Enel S.A Enel S.A [Member] Enel S.A MBL Materiais Básicos Ltda. MBL Materiais Básicos Ltda. [Member] MBL Materiais Básicos Ltda. Public Civil Action seeking the reimbursement of the amounts increased by means of a term of amendment to the Contractor's Agreement, due to alleged overbilling in the construction of a bridge in Brasília/DF. Public Civil Action Due To Alleged Overbilling [Member] Public Civil Action Due To Alleged Overbilling Monthly fee burden Post Retirement Benefit Plan, Monthly Fee Percent Post Retirement Benefit Plan, Monthly Fee Percent Disclosure of Quantitative Information About Leases for Lessee Disclosure Of Quantitative Information About Leases For Lessee [Table Text Block] Disclosure Of Quantitative Information About Leases For Lessee [Table Text Block] Advances to suppliers for the purchase of property, plant and equipment Non-current prepayments Subclassifications of assets, liabilities and equities [abstract] Subclassifications of assets, liabilities and equities [abstract] Tariffs [Axis] Tariffs [Axis] Tariffs Translation differences Translation differences Increase (decrease) in net defined benefit liability (asset) resulting from changes in foreign exchange rates, net defined benefit liability (asset) Hedging instruments [axis] Hedging instruments [axis] Kinder Morgan Gas Natural de Mexico, S. de R.L. de C.V., Kinder Morgan Texas Pipeline LLC, Kinder Morgan Tejas Pipeline LLC Kinder Morgan Gas Natural de Mexico, S. de R.L. de C.V., Kinder Morgan Texas Pipeline LLC, Kinder Morgan Tejas Pipeline LLC [Member] Kinder Morgan Gas Natural de Mexico, S. de R.L. de C.V., Kinder Morgan Texas Pipeline LLC, Kinder Morgan Tejas Pipeline LLC Investments in non-consolidated companies Investments In Non Consolidated Companies Recognized As Of Acquisition Date Investments In Non Consolidated Companies Recognized As Of Acquisition Date Decrease (Increase) in other investments Increase (decrease) in other investments Increase (decrease) in other investments Non - U.S. government securities Non-U.S.. Government Securities [Member] Non-U.S.. Government Securities Additions Additions other than through business combinations, intangible assets other than goodwill SELLING, GENERAL AND ADMINISTRATIVE EXPENSES Disclosure of general and administrative expense [text block] Assets at fair value through OCI Financial assets at fair value through other comprehensive income, category [member] Usinas Siderúrgicas de Minas Gerais S.A. Usinas Siderúrgicas de Minas Gerais S.A. [Member] Usinas Siderúrgicas de Minas Gerais S.A. Disclosure of Maturity Analysis of Lease Payments Disclosure Of Maturity Analysis Of Lease Payments [Table Text Block] Disclosure Of Maturity Analysis Of Lease Payments [Table Text Block] Trade payables and other liabilities Trade and other payables, undiscounted cash flows Valuation allowance Increase (Decrease) In Inventory Valuation Allowance Increase (Decrease) In Inventory Valuation Allowance Tariffs [Abstract] Tariffs ICFR Auditor Attestation Flag ICFR Auditor Attestation Flag Transamerica E. & I. Trading Corp. Transamerica E. & I. Trading Corp. [Member] Transamerica E. & I. Trading Corp. Ternium Investments Ternium Investments [Member] Ternium Investments Redemption, period (years) Share-based Compensation Arrangement by Share-based Payment Award, Redemption, Period Share-based Compensation Arrangement by Share-based Payment Award, Redemption, Period Disclosure of temporary difference, unused tax losses and unused tax credits [table] Disclosure of temporary difference, unused tax losses and unused tax credits [table] Usiminas Internatioonal S.À R.L. Usiminas Internatioonal S.À R.L. [Member] Usiminas Internatioonal S.À R.L. Long-term supply commitment, electric demand Long-Term Supply Commitment, Electric Demand Long-Term Supply Commitment, Electric Demand PCAOB Auditor Firm ID Auditor Firm ID Less: debt issue costs, current Debt issuance costs, current Debt issuance costs, current Other investments Investments in companies under cost method Investments in companies under cost method Financial liabilities related to accelerated recognition of financial results Financial Liabilities Related To Accelerated Recognition Of Financial Results Financial Liabilities Related To Accelerated Recognition Of Financial Results Ternium Gas Mexico Ternium Gas Mexico [Member] Ternium Gas Mexico Interest accrued Financial Assets, At Fair Value, Interest Accrued Financial Assets, At Fair Value, Interest Accrued Number of megawatts (per year) Number of megawatts Number of megawatts OTHER REQUIRED DISCLOSURES Disclosure of additional information [text block] Schedule of Cost of Sales Schedule of cost of sales [Table Text Block] Schedule of cost of sales [Table Text Block] Update of certain tax liabilities Update Of Certain Tax Liabilities Update Of Certain Tax Liabilities General sustainability matters and climate change Climate Change [Policy Text Block] Climate Change Performance Guarantee Performance Guarantee1 [Member] Performance Guarantee [Member] Owners of the parent Comprehensive income, attributable to owners of parent Borrowings Borrowings, Undiscounted Cash Flows, Principal Borrowings, Undiscounted Cash Flows, Principal Trade receivables with related parties Trade receivables with related parties Trade receivables with related parties Intangible assets Intangible Assets Temporary Differences [Member] Intangible Assets Temporary Differences Total Liabilities Liabilities Liabilities Kinder Morgan Texas Pipeline L.L.C., Kinder Morgan Tejas Pipeline L.L.C. and Kinder Morgan Border Pipeline L.L.C. Kinder Morgan Texas Pipeline L.L.C., Kinder Morgan Tejas Pipeline L.L.C. and Kinder Morgan Border Pipeline L.L.C. [Member] Kinder Morgan Texas Pipeline L.L.C., Kinder Morgan Tejas Pipeline L.L.C. and Kinder Morgan Border Pipeline L.L.C. Congonhas Minérios Congonhas Minérios [Member] Congonhas Minérios Environmental Remediation [Domain] Environmental Remediation [Domain] Environmental Remediation [Domain] Long-term increase in medical service costs Actuarial assumption of medical cost trend rates Net deferred tax assets, before write-down Net Deferred Tax Assets, Before Write-Down Net Deferred Tax Assets, Before Write-Down Trade receivables Trade And Other Receivables As Of Acquisition Date Trade And Other Receivables As Of Acquisition Date Plan Name [Domain] Plan Name1 [Domain] [Domain] for Plan Name [Axis] Corporate securities Corporate Securities [Member] Corporate Securities Number of installments, repayment Borrowings, Number Of Installments, Repayment Borrowings, Number Of Installments, Repayment TenarisConfab TenarisConfab [Member] TenarisConfab Disclosure of subsidiaries [table] Disclosure of subsidiaries [table] Disclosure of net defined benefit liability (asset) [line items] Disclosure of net defined benefit liability (asset) [line items] Current income tax liabilities Current tax liabilities, current Trade payables Trade and other payables recognised as of acquisition date Interest accrued, non current lease liabilities Increase (Decrease) Through Interest Accrued, Non Current Lease Liabilities Increase (Decrease) Through Interest Accrued, Non Current Lease Liabilities VAT liabilities Current value added tax payables Long-term supply commitment, term Long-Term Supply Commitment, Term Long-Term Supply Commitment, Term Foreign Exchange Derivatives Foreign Exchange Derivatives [Member] Foreign Exchange Derivatives Disclosure of nature and extent of risks arising from financial instruments [table] Disclosure of nature and extent of risks arising from financial instruments [table] Unigal Usiminas Ltda. Unigal Usiminas Ltda. [Member] Unigal Usiminas Ltda. Finance lease liabilities Lease liabilities [member] Ternium Argentina S.A. and Ternium Procurement S.A. Ternium Argentina S.A. and Ternium Procurement S.A. [Member] Ternium Argentina S.A. and Ternium Procurement S.A. [Member] Post-employment benefits Post-employment benefit liability, non-current Post-employment benefit liability, non-current Number of vice-presidents Number Of Vice-Presidents Number Of Vice-Presidents Transfers Increase (Decrease) Through Transfers, Provisions, Current Increase (Decrease) Through Transfers, Provisions, Current Property, plant and equipment, beginning balance Property, plant and equipment, ending balance Property, plant and equipment including right-of-use assets Disclosure of maturity analysis of finance lease payments receivable [line items] Disclosure of maturity analysis of finance lease payments receivable [line items] Contracts with negative fair value Financial liabilities, at fair value Financial liabilities, at fair value Current tax Current tax expense (income) Non-adjusting events after reporting period [axis] Non-adjusting events after reporting period [axis] Nippon Steel Corporation Nippon Steel Corporation [Member] Nippon Steel Corporation Non-current assets or disposal groups classified as held for sale Non-current assets or disposal groups classified as held for sale Hedging instruments Hedging instruments [domain] Currency translation adjustment from participation in non-consolidated companies Other comprehensive income, exchange differences on translation of associates and joint ventures from participation in non-consolidated companies accounted for using equity method Other comprehensive income, exchange differences on translation of associates and joint ventures from participation in non-consolidated companies accounted for using equity method Later than one year but not later than five years Later than one year and not later than five years [member] Other non-consolidated companies Other [Member] Other [Member] Advances to suppliers with related parties Current prepayments, related party Current prepayments, related party Interest to be accrued Borrowings, Undiscounted Cash Flows, Interest Borrowings, Undiscounted Cash Flows, Interest Items of contingent liabilities [domain] Items of contingent liabilities [domain] Top of range Top of range [member] Rio de Janeiro State Treasury Office Rio de Janeiro State Treasury Office [Member] Rio de Janeiro State Treasury Office Research and development expense Research and development expense Scenario [Axis] Scenario [Axis] Indexation Indexation, Property, Plant and Equipment, Including Right-Of-Use Assets Indexation, Property, Plant and Equipment, Including Right-Of-Use Assets Tax contingent liability Tax Contingent Liability Tax Contingent Liability Legal claims and other matters Legal proceedings provision [member] 2029 Later than three years and not later than four years [member] Purchases of goods and services, related party transactions Purchases of goods and services, related party transactions Purchases of goods and services, related party transactions Remeasurement of post employment benefit obligations Other comprehensive income, net of tax, gains (losses) on remeasurements of defined benefit plans ARS/$ ARS Argentina, Pesos Ternium Internacional Costa Rica S.A. Ternium Internacional Costa Rica S.A. [Member] Ternium Internacional Costa Rica S.A. 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Soluciones Integrales de Gestión S.A. [Member] Soluciones Integrales de Gestión S.A. Counterparties Counterparties [domain] Current provisions, beginning of the year Current provisions, end of the year Other current provisions Trade receivables, net Non-current trade receivables Treasury shares Treasury shares [member] Past due status Past due status [domain] Net assets acquired Identifiable assets acquired (liabilities assumed) Proportion of voting rights held in associate Proportion of voting rights held in associate Proportion of voting rights held by non-consolidated companies Proportion of Ownership Interest in Non-Consolidated Companies Proportion of Ownership Interest in Non-Consolidated Companies Tax proceedings seeking the reversal of ICMS/SP credits on materials considered as consumables (refractory items and others). Tax Proceedings Seeking The Reversal Of ICMS/SP Credits [Member] Tax Proceedings Seeking The Reversal Of ICMS/SP Credits Receivables and others Adjustments for decrease (increase) in other operating receivables Depreciation and amortization Adjustments for depreciation and amortisation expense Change of obsolescence allowance Write-downs (reversals of write-downs) of inventories Current accounts Current accounts Current accounts Title of 12(b) Security Title of 12(b) Security Disclosure of subsidiaries [line items] Disclosure of subsidiaries [line items] Selling, general and administrative expense [Line Items] Selling, general and administrative expense [Line Items] [Line Items] for Selling, general and administrative expense [Table] Foreign exchange contracts Foreign Exchange Contracts, Financial Instrument [Member] Foreign Exchange Contracts, Financial Instrument Tenigal S. de R.L. de C.V. Tenigal S. de R.L. de C.V. [Member] Tenigal S. de R.L. de C.V. [Member] Schedule of Condensed Statement of Cash Flows Schedule of condensed statement of cash flow [Table Text Block] Schedule of condensed statement of cash flow [Table Text Block] BEMISA HOLDING SA BEMISA HOLDING SA [Member] BEMISA HOLDING SA Pension growth rate Actuarial assumption of expected rates of pension increases [member] Treasury shares Description of accounting policy for treasury shares [text block] Income before income tax Accounting profit Proportion of voting rights held in subsidiary Proportion of voting rights held in subsidiary Net investments exposed to volatility in exchange rate, amount Sensitivity Analysis For Types Of Market Risk, Net Investments Exposed to Volatility in Exchange Rates, Amount Sensitivity Analysis For Types Of Market Risk, Net Investments Exposed to Volatility in Exchange Rates, Amount Long-term purchase commitment, minimum volume Long-term Purchase Commitment, Minimum Volume Long-term Purchase Commitment, Minimum Volume Depreciation charge Depreciation, property, plant and equipment including right-of-use assets Payment for purchase of participation in borrowing arrangement Payment For Purchase Of Participation In Borrowing Arrangement Payment For Purchase Of Participation In Borrowing Arrangement Obsolescence allowance Obsolescence allowance [Member] Obsolescence allowance [Member] Property, plant and equipment including right-of-use assets [domain] Property, plant and equipment including right-of-use assets [domain] Selling, general and administrative expense [Table] Selling, general and administrative expense [Table] Selling, general and administrative expense [Table] Ternium Argentina Ternium Argentina [Member] Ternium Argentina Repayments of borrowings Repayments of borrowings, classified as financing activities Subsidiaries Subsidiaries [domain] Usinas Siderúrgicas de Minas Gerais S.A. And Usiminas Mecânica S.A. Usinas Siderúrgicas de Minas Gerais S.A. And Usiminas Mecânica S.A. [Member] Usinas Siderúrgicas de Minas Gerais S.A. And Usiminas Mecânica S.A. Deferred income tax [Abstract] Deferred income tax [Abstract] Deferred income tax [Abstract] Undistributable reserve Undistributable Reserve Undistributable Reserve Disclosure of Credit Risk Exposure Disclosure of credit risk exposure [text block] Raw materials, materials and spare parts Current raw materials and current production supplies Borrowings by name [axis] Borrowings by name [axis] Write-down of deferred tax assets Write-down of deferred tax assets Deferred tax expense arising from write-down or reversal of write-down of deferred tax asset Growth rate used to extrapolate cash flow projections Growth rate used to extrapolate cash flow projections Negotiable Obligations And Promissory Notes Negotiable Obligations And Promissory Notes [Member] Negotiable Obligations And Promissory Notes Disclosure of detailed information about hedging instruments [table] Disclosure of detailed information about hedging instruments [table] Usiminas Control Group Usiminas Control Group [Member] Usiminas Control Group Borrowings Description of accounting policy for borrowings [text block] Accumulated impairment Accumulated impairment [member] CONTINGENCIES, COMMITMENTS AND RESTRICTIONS ON THE DISTRIBUTION OF PROFITS Disclosure of commitments and contingent liabilities [text block] Disclosure of Detailed Information About Property, Plant and Equipment Disclosure of detailed information about property, plant and equipment [text block] Classes of intangible assets and goodwill Classes of intangible assets and goodwill [domain] Bank borrowings Borrowings, interest rate Soluções Em Aço Usiminas S.A. Soluções Em Aço Usiminas S.A. [Member] Soluções Em Aço Usiminas S.A. Net cash used in investing activities Cash flows from (used in) investing activities Inventories Inventory recognised as of acquisition date DERIVATIVE FINANCIAL INSTRUMENTS Disclosure of derivative financial instruments [text block] Lease liabilities with other related parties Lease Liabilities, Related Party Transactions Lease Liabilities, Related Party Transactions Effective portion of hedge Derivative Instruments, Gain Recognized in Other Comprehensive Income (Loss), Effective Portion Derivative Instruments, Gain Recognized in Other Comprehensive Income (Loss), Effective Portion Exploration and evaluation costs Intangible exploration and evaluation assets [member] Disclosure of detailed information about intangible assets [line items] Disclosure of detailed information about intangible assets [line items] Labor lawsuits filed by employees, former employees and outsourced personnel of the Cubatão Plant, claiming severance pay and social security rights. Labor Lawsuits At Cubatao Plant [Member] Labor Lawsuits At Cubatao Plant Reserve of cash flow hedges, net of tax Reserve of cash flow hedges, net of tax Reserve of cash flow hedges, net of tax Recovery of income tax Tax effect of recovery of income tax Tax effect of recovery of income tax  Labor costs Employee benefits expense Amortization charge Amortisation, intangible assets other than goodwill Provision for ongoing litigation related to the acquisition of a participation in Usiminas Provision For Ongoing Litigation Related To The Acquisition Of A Participation In A Subsidiary, Liability Provision For Ongoing Litigation Related To The Acquisition Of A Participation In A Subsidiary, Liability Receivables, net – Current Current Receivables, Net Current Receivables, Net Non-controlling interest Non-controlling interest in acquiree recognised at acquisition date Financial instruments Description of accounting policy for financial instruments [text block] Changes in working capital Increase (decrease) in working capital Increase (decrease) in working capital Current assets Current assets Current assets Guarantee Type, Other Guarantee Type, Other1 [Member] Guarantee Type, Other [Member] Ternium Internacional Espana S.L. Ternium Internacional Espana S.L. [Member] Ternium Internacional Espana S.L. [Member] Schedule of Cash and Cash Equivalents Schedule of cash and cash equivalents [Table Text Block] Schedule of cash and cash equivalents [Table Text Block] Allowance for doubtful account Allowance for Doubtful Accounts Receivable Allowance for Doubtful Accounts Receivable Disclosure of operating segments [table] Disclosure of operating segments [table] Total for all subsidiaries Total for all subsidiaries [member] Non-cash effects related to the provision for ongoing litigation related to the acquisition of a participation in Usiminas Non-Cash Effects Related To Provision For Ongoing Litigation Related To The Acquisition Of A Participation In A Subsidiary Non-Cash Effects Related To Provision For Ongoing Litigation Related To The Acquisition Of A Participation In A Subsidiary Segments [axis] Segments [axis] Types of risks [axis] Types of risks [axis] Lime And Limestone Lime And Limestone [Member] Lime And Limestone Non current tax liabilities Current tax liabilities, non-current Long-term purchase commitment, termination penalty, period two Long-Term Purchase Commitment, Termination Penalty, Period Two Long-Term Purchase Commitment, Termination Penalty, Period Two Usiminas Debentures -9th Emission Due December 2032 Usiminas Debentures -9th Emission Origination Date Of December 2022 [Member] Usiminas Debentures -9th Emission Origination Date Of December 2022 Others Other non-current receivables, net Other non-current receivables, net Additions Additional Provisions, Other Provisions, Non-Current Additional Provisions, Other Provisions, Non-Current Labor lawsuits filed by employees, former employees and outsourced personnel of the Ipatinga Plant, claiming severance pay and social security rights. Labor Lawsuits At Ipatinga Plant [Member] Labor Lawsuits At Ipatinga Plant Disclosure of transactions between related parties [table] Disclosure of transactions between related parties [table] Other tax liabilities Other tax liabilities, current Other tax liabilities, current Slabs Slabs [Member] Slabs [Member] Types of hedges [axis] Types of hedges [axis] Investments in debt instruments and other Debt instruments held Amortized cost Financial assets at amortised cost, category [member] Disclosure of non-adjusting events after reporting period [table] Disclosure of non-adjusting events after reporting period [table] ICMS – Action for annulment of the tax debt claimed by the State of Rio Grande do Sul due to failure to make the advance payment of the tax at the entry of goods coming from other States (rate differential ). ICMS [Member] ICMS Par value per share (in dollars per share) Par value per share PROPERTY, PLANT AND EQUIPMENT, NET Disclosure of property, plant and equipment [text block] Net deferred tax assets Deferred tax assets, beginning balance Deferred tax assets, ending balance Net deferred tax assets Brazil Tariffs Announced, Brazil [Member] Tariffs Announced, Brazil Imported automobiles Tariffs Announced, Imported Automobiles [Member] Tariffs Announced, Imported Automobiles Useful life, right-of-use assets Useful Life Measured as Period of Time, Right-of-Use Assets Useful Life Measured as Period of Time, Right-of-Use Assets Amendment Flag Amendment Flag Kinder Morgan Texas Pipeline L.L.C., Kinder Morgan Tejas Pipeline L.L.C. and Kinder Morgan Gas Natural de México S. de R.L. de C.V. Kinder Morgan Texas Pipeline L.L.C., Kinder Morgan Tejas Pipeline L.L.C. and Kinder Morgan Gas Natural de México S. de R.L. de C.V. [Member] Kinder Morgan Texas Pipeline L.L.C., Kinder Morgan Tejas Pipeline L.L.C. and Kinder Morgan Gas Natural de México S. de R.L. de C.V. Components of equity [domain] Components of equity [domain] Disclosure of operating segments [line items] Disclosure of operating segments [line items] Employee liabilities Description of accounting policy for employee benefits [text block] Imposed minimum tariff rate Imposed Minimum Tariff Rate Imposed Minimum Tariff Rate Weighted average Weighted average [member] Exiros B.V. Exiros B.V. [Member] Exiros B.V. Ternium Mexico S.A. de C.V and Tenigal S. de R.L. de C.V. Ternium Mexico S.A. de C.V and Tenigal S. de R.L. de C.V. [Member] Ternium Mexico S.A. de C.V and Tenigal S. de R.L. de C.V. [Member] Natural Gas Transportation Natural Gas Transportation [Member] Natural Gas Transportation Guarantee fund companies Guarantee Fund Companies [Member] Guarantee Fund Companies Financing Receivables, Up to 180 Past Due Financing Receivables, Up to 180 Past Due [Member] Financing Receivables, Up to 180 Past Due Acquisitions - finance leases Increase through new leases, liabilities arising from financing activities Current income tax assets Income tax credits Current tax assets Purchases of services and others, related party transactions Services received, related party transactions Gasmig S.A. Gasmig S.A. [Member] Gasmig S.A. Temporary difference, unused tax losses and unused tax credits [axis] Temporary difference, unused tax losses and unused tax credits [axis] Range Range [domain] Classes of contingent liabilities [axis] Classes of contingent liabilities [axis] Las Encinas S.A. de C.V. Las Encinas S.A. de C.V. [Member] Las Encinas S.A. de C.V. Mandatory redemption period (years) Share-based Compensation Arrangement by Share-based Payment Award, Mandatory Redemption Period Share-based Compensation Arrangement by Share-based Payment Award, Mandatory Redemption Period Long-term purchase commitment, obligations outstanding Long-term Purchase Commitment, Obligations Outstanding Long-term Purchase Commitment, Obligations Outstanding Interest income Interest income Threshold percentage to reduce carbon dioxide emissions in 2030 Threshold Percentage to Reduce Carbon Dioxide Emissions Threshold Percentage to Reduce Carbon Dioxide Emissions Business combination, price per ordinary share (in dollars per share) Acquisition Of Participation Interest, Acquisition Price Per Share Acquisition Of Participation Interest, Acquisition Price Per Share Lime Lime [Member] Lime Scenario [Domain] Scenario [Domain] Ternium del Atlántico S.A.S Ternium del Atlántico S.A.S [Member] Ternium del Atlántico S.A.S Payables, related party transactions Amounts payable, related party transactions Debentures Debentures [Member] Debentures Vientos de Olavarría S.A. Vientos de Olavarría S.A. [Member] Vientos de Olavarría S.A. Expected return on assets Return on plan assets excluding interest income or expense, before tax, defined benefit plans Judicial deposits and other receivables Non-current Receivables Due From Judicial Deposits And Other Non-current Receivables Due From Judicial Deposits And Other Amortisation period (not exceeding) Amortisation period Amortisation period Unused tax losses generated from prior period Unused Tax Losses Generated From Prior Period For Which No Deferred Tax Asset Recognized Unused Tax Losses Generated From Prior Period For Which No Deferred Tax Asset Recognized Usiminas Usiminas [Member] Usiminas Rail Transportation Rail Transportation [Member] Rail Transportation Debt instrument, average life Debt Instrument, Average Life Debt Instrument, Average Life Other deposits with maturity of more than three months Other deposits, not classified as cash equivalents Other deposits, not classified as cash equivalents ACCOUNTING POLICIES Disclosure of significant accounting policies [text block] The entire disclosure for significant accounting policies applied by the entity. Schedule of Changes in Deferred Income Tax Schedule of changes in deferred income tax [Table Text Block] Schedule of changes in deferred income tax [Table Text Block] Disclosure of products and services [table] Disclosure of products and services [table] Types of customers [axis] Types of customers [axis] BP Energia Mexico (BPEM) BP Energia Mexico (BPEM) [Member] BP Energia Mexico (BPEM) Proportion of control group shares required for decision Proportion Of Control Group Shares Required For Decision Proportion Of Control Group Shares Required For Decision Address Type [Domain] Address Type [Domain] Notional amount Original principal amount Notional amount Number of sub groups Number Of Sub Groups Number Of Sub Groups Acquisition of PP&E under lease contract agreements Acquisition Of Property, Plant and Equipment Under Lease Contract Agreement Acquisition Of Property, Plant and Equipment Under Lease Contract Agreement Lease liabilities Values at the beginning of the year, current lease liabilities Values at the end of the year, current lease liabilities Current lease liabilities Purchases of goods, related party transactions Purchases of goods, related party transactions Maintenance expenses Repair and maintenance expense, Cost of Sales Repair and maintenance expense, Cost of Sales Bank Borrowings Bank Borrowings [Member] Bank Borrowings Gains (losses) on cash flow hedges, tax (Decrease)/Increase on cash flow hedges, tax Other Comprehensive Income (Loss), Increase (Decrease), Tax Other Comprehensive Income (Loss), Increase (Decrease), Tax Currency [Axis] Currency [Axis] Diluted earnings per share for profit attributable to the owners of the parent (expressed in $ per share) Diluted earnings (loss) per share Maturity Maturity [domain] Disclosure of interests in subsidiaries Disclosure of interests in subsidiaries [text block] (Decrease)/Increase, Currency translation adjustment Gains (losses) on exchange differences on translation Gains (losses) on exchange differences on translation Maintenance Services Maintenance Services [Member] Maintenance Services Categories of financial liabilities [axis] Categories of financial liabilities [axis] Cash and Cash Equivalents1 [Axis] Cash and Cash Equivalents1 [Axis] Cash and Cash Equivalents1 Tariffs [Domain] Tariffs [Domain] Tariffs [Domain] Disclosure of terms and conditions of share-based payment arrangement [table] Disclosure of terms and conditions of share-based payment arrangement [table] Non-US government securities Non U.S Government Instruments, Amount Contributed To Fair Value Of Plan Assets Non U.S Government Instruments, Amount Contributed To Fair Value Of Plan Assets Disclosure of reconciliation of liabilities arising from financing activities [table] Disclosure of reconciliation of liabilities arising from financing activities [table] Pending Litigation Pending Litigation1 [Member] Pending Litigation1 [Member] Votes per share acquired Business Combination, Votes Per Share Acquired Business Combination, Votes Per Share Acquired Indexation, lease liabilities Indexation, Lease Liabilities Indexation, Lease Liabilities Port And Accessory Services Port And Accessory Services [Member] Port And Accessory Services Long-term purchase commitment, amount Long-Term Purchase Commitment, Amount1 Long-Term Purchase Commitment, Amount1 Counterparty Name [Axis] Counterparty Name [Axis] Vale S.A. Vale S.A. [Member] Vale S.A. [Member] Zinc Zinc [Member] Zinc Disclosure of detailed information about property, plant and equipment [table] Disclosure of detailed information about property, plant and equipment [table] CASH, CASH EQUIVALENTS AND OTHER INVESTMENTS - NON-CURRENT AND CURRENT Disclosure of cash, cash equivalents and other investments [Text Block] Disclosure of cash, cash equivalents and other investments [Text Block] Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Wind Generation Farm Wind Generation Farm [Member] Wind Generation Farm Reclassification adjustments on cash flow hedges, before tax Reclassification adjustments on cash flow hedges, before tax Reclassification adjustments on cash flow hedges, before tax Provisions Provision Temporary Differences [Member] Provision [Member]