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BORROWINGS (Significant borrowings) (Details) - USD ($) | Dec. 31, 2022 | Dec. 31, 2021 | Jun. 30, 2018
--- | --- | --- | ---
Disclosure of detailed information about borrowings [line items] |  |  |
Borrowings | $ 1,031,865,000 | $ 1,479,038,000 |
Ternium Mexico Syndicated Loan Due June 2023 |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Original principal amount | 1,000,000,000 |  | $ 1,000,000,000
Borrowings | 125,000,000 |  |
Ternium Brazil Syndicated Loan Due August 2024 |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Original principal amount | 500,000,000 |  |
Borrowings | $ 500,000,000 |  |

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- Definition The amount of outstanding funds that the entity is obligated to repay. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 55 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_55&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The nominal or face amount of a financial instrument, used to calculate payments made on that instrument. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 112 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_112_c&doctype=Standard -URIDate 2022-03-24 + Details
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