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EMPLOYEE BENEFITS (Details)	12 Months Ended
	Dec. 31, 2022
EMPLOYEE BENEFITS [Abstract]
Discount rate term year	20 years

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- References

No definition available.

+ Details

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

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- Definition

Discount Rate Term.

+ References

No definition available.

+ Details

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Namespace Prefix:	ltm_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration