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OTHER INCOME, BY FUNCTION (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Disclosure Of Other Operating Income Text Block Abstract
Delta airlines compensation	$ 30,408	$ 118,188,000	$ 132,467,000

X

- Definition

The amount of compensation from third parties.

+ References

No definition available.

+ Details

Name:	ltm_DeltaAirLineIncCompensation
Namespace Prefix:	ltm_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	ltm_DisclosureOfOtherOperatingIncomeTextBlockAbstract
Namespace Prefix:	ltm_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration