XML 120 R102.htm IDEA: XBRL DOCUMENT
v3.19.1

SEGMENTAL INFORMATION (Details Narrative) | 12 Months Ended
--- | ---
Dec. 31, 2018 Member Segment
Disclosure of operating segments [line items] |
Number of operating segment | Segment | 2
Customer Concentration Risk [Member] |
Disclosure of operating segments [line items] |
Concentration risk, percentage | 10.00%
Coalition And Loyalty Program Multiplus [Member] |
Disclosure of operating segments [line items] |
Number of member for loyalty coalition | Member | 22,200,000

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_DisclosureOfOperatingSegmentsLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition It represents value in ratio or percentage of concentration of risks. + References No definition available. + Details
Name: | ltm_ConcentrationRiskPercentage
Namespace Prefix: | ltm_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Refers to the number of member of coalition system. + References No definition available. + Details
Name: | ltm_NumberOfMemberForLoyaltyCoalition
Namespace Prefix: | ltm_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition It represents the number of operating segments. + References No definition available. + Details
Name: | ltm_NumberOfOperatingSegment
Namespace Prefix: | ltm_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | ifrs-full_ConcentrationsOfRiskAxis=ltm_CustomerConcentrationRisk1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SegmentsAxis=ltm_CoalitionAndLoyaltyProgramMultiplusMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |