XML 222 R205.htm IDEA: XBRL DOCUMENT v3.8.0.1

SHARE-BASED PAYMENTS (Details 2) - Multiplus S.A. [Member] - Subsidiaries Compensation Plans [Member] - Stock Option [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Disclosure of terms and conditions of share-based payment arrangement [line items]
Number of shares non accrued options	$ 316,025	$ 394,698
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	173,399
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	$ 137,050

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: