XML 230 R212.htm IDEA: XBRL DOCUMENT
v3.19.1

SHARE-BASED PAYMENTS (Details 1) - Multiplus S.A. [Member] - Subsidiaries Compensation Plans [Member] - Stock Option [Member] - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |
Number of shares non accrued options | $ 247,500 | $ 316,025
3rd Grant - 03/21/2012 [Member] |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |
Number of shares non accrued options | 84,249 | 84,249
4th Grant - 04/03/2013 [Member] |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |
Number of shares non accrued options | 163,251 | 163,251
4th Extraordinary Grant - 11/20/2013 [Member] |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |
Number of shares non accrued options |  | $ 68,525

X
- 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
Name: | ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represent information about number of shares non accrued options. + References No definition available. + Details
Name: | ltm_NumberOfSharesNonAccruedOptions
Namespace Prefix: | ltm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=ltm_MultiplusSAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ltm_CompensationPlanAxis=ltm_SubsidiariesCompensationPlansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=ltm_StockOption1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ltm_ShareBasedCompensationAwardGrantTrancheAxis=ltm_GrantTrancheOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ltm_ShareBasedCompensationAwardGrantTrancheAxis=ltm_GrantTrancheTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ltm_ShareBasedCompensationAwardGrantTrancheAxis=ltm_GrantTrancheThreeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |