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OTHER FINANCIAL LIABILITIES (Details) - Schedule of currency balances of interest bearing loans - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021
Schedule Of Currency Balances Of Interest Bearing Loans Abstract |  |
Brazilian real | $ 314,322 | $ 338,953
Chilean peso (U.F.) | 157,288 | 639,710
US Dollar | 4,093,816 | 6,457,181
Total | $ 4,565,426 | $ 7,435,844

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- Definition The amount of chilean peso (U.F.). + References No definition available. + Details
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Namespace Prefix: | ltm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- References No definition available. + Details
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Balance Type: | na
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- Definition The amount of financial liabilities that the entity does not separately disclose in the same statement or note. [Refer: Financial liabilities] + References No definition available. + Details
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Namespace Prefix: | ltm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Carrying value, as of the balance sheet date, of an agreement to sell a mortgage-backed security with an agreement to purchase a similar mortgage-backed security at a future date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 45 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=6479118&loc=d3e64650-112822 + Details
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