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ACCOUNTS RECEIVABLE FROM/PAYABLE TO RELATED ENTITIES (Details) | 12 Months Ended
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Dec. 31, 2022
ACCOUNTS RECEIVABLE FROM/PAYABLE TO RELATED ENTITIES [Abstract] |
Transaction terms ,description | The transaction terms for the Liabilities of the period 2022 correspond from 30 days to 1 year of maturity, and the nature of the settlement of transactions are monetary.

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- Definition Description of related party transaction terms and nature of settlement + References No definition available. + Details
Name: | ltm_RelatedPartyTransactionTermsAndNatureOfSettlementDescription
Namespace Prefix: | ltm_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_AccountsReceivableAdditionalDisclosuresAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration