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OTHER NON-FINANCIAL ASSETS (Details) - Schedule of movement of contracts assets - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
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Schedule of movement of contracts assets [Abstract] |  |
Opening Balance | $ 15,476 | $ 56,576
Activation | 67,647 | 146,778
Cummulative translation adjustment | (6,680) | (14,672)
Amortization | (51,363) | (173,206)
Closing Balance | $ 25,080 | $ 15,476

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- Definition The amount of non-financial assets that the entity does not separately disclose in the same statement or note. [Refer: Financial assets] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_55&doctype=Standard -URIDate 2021-03-24 + Details
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Balance Type: | debit
Period Type: | instant

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- Definition Represents other non current non financail assets amortized. + References No definition available. + Details
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Balance Type: | debit
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- Definition Represents non current non financial assets adjustments. + References No definition available. + Details
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Balance Type: | debit
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- Definition Represents other non financial assets activation. + References No definition available. + Details
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Namespace Prefix: | ltm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- References No definition available. + Details
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Balance Type: | na
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