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COMMITMENTS (Details Narrative) $ in Thousands | Dec. 31, 2017 USD ($)
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LATAM Airlines Group S.A. [Member] |
Disclosure of transactions between related parties [line items] |
Revolving credit facility | $ 450,000
Tam Linhas Aereas S.A. [Member] |
Disclosure of transactions between related parties [line items] |
Revolving credit facility | $ 450,000

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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
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Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition It represents the amount of line of credit revolving facility. + References No definition available. + Details
Name: | ltm_LineOfCreditRevolvingFacility
Namespace Prefix: | ltm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=ltm_LATAMAirlinesGroupSAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=ltm_TAMLinhasAereasSAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |