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COSTS AND EXPENSES BY NATURE (Details) - Schedule of finance costs - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Schedule of finance costs [Abstract] |  |  |
Bank loan interest | $ (714,310) | $ (580,193) | $ (314,468)
Financial leases | (45,384) | (46,679) | (45,245)
Lease liabilities | (152,132) | (121,147) | (170,918)
Other financial instruments | (30,577) | (57,525) | (56,348)
Total | $ (942,403) | $ (805,544) | $ (586,979)

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- Definition The cash outflow for leases. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2022-03-24 -Paragraph 53 -Subparagraph g -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2022-en-r&anchor=para_53_g&doctype=Standard -URIDate 2022-03-24 + Details
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Balance Type: | credit
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- Definition The amount of costs associated with financing activities of the entity. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 82 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_82_b&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The amount of costs associated with bank loan interest activities of the entity. + References No definition available. + Details
Name: | ltm_BankLoanInterest
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Balance Type: | debit
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- Definition Lease Liabilities Cost + References No definition available. + Details
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- Definition The amount of costs associated with other financial instruments activities of the entity. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- References No definition available. + Details
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