XML 177 R138.htm IDEA: XBRL DOCUMENT
v3.20.1

PROPERTY, PLANT AND EQUIPMENT (Details) - Schedule of method used for the depreciation of property, plant and equipment | 12 Months Ended
--- | ---
Dec. 31, 2019
PROPERTY, PLANT AND EQUIPMENT (Details) - Schedule of method used for the depreciation of property, plant and equipment [Line Items] |
Method | Straight line without residual value
Bottom of range [member] |
PROPERTY, PLANT AND EQUIPMENT (Details) - Schedule of method used for the depreciation of property, plant and equipment [Line Items] |
Useful life (years) | 1
Top of range [member] |
PROPERTY, PLANT AND EQUIPMENT (Details) - Schedule of method used for the depreciation of property, plant and equipment [Line Items] |
Useful life (years) | 25
Bearer plants [member] |
PROPERTY, PLANT AND EQUIPMENT (Details) - Schedule of method used for the depreciation of property, plant and equipment [Line Items] |
Method | Straight line without residual value
Bearer plants [member] | Bottom of range [member] |
PROPERTY, PLANT AND EQUIPMENT (Details) - Schedule of method used for the depreciation of property, plant and equipment [Line Items] |
Useful life (years) | 20
Bearer plants [member] | Top of range [member] |
PROPERTY, PLANT AND EQUIPMENT (Details) - Schedule of method used for the depreciation of property, plant and equipment [Line Items] |
Useful life (years) | 50
Plant and Equipment Net [Member] |
PROPERTY, PLANT AND EQUIPMENT (Details) - Schedule of method used for the depreciation of property, plant and equipment [Line Items] |
Method | Straight line with residual value of 20% in the short-haul fleet and 36% in the long-haul fleet. (*)
Plant and Equipment Net [Member] | Bottom of range [member] |
PROPERTY, PLANT AND EQUIPMENT (Details) - Schedule of method used for the depreciation of property, plant and equipment [Line Items] |
Useful life (years) | 5
Plant and Equipment Net [Member] | Top of range [member] |
PROPERTY, PLANT AND EQUIPMENT (Details) - Schedule of method used for the depreciation of property, plant and equipment [Line Items] |
Useful life (years) | 30
Information Technology Equipment [Member] |
PROPERTY, PLANT AND EQUIPMENT (Details) - Schedule of method used for the depreciation of property, plant and equipment [Line Items] |
Method | Straight line without residual value
Information Technology Equipment [Member] | Bottom of range [member] |
PROPERTY, PLANT AND EQUIPMENT (Details) - Schedule of method used for the depreciation of property, plant and equipment [Line Items] |
Useful life (years) | 5
Information Technology Equipment [Member] | Top of range [member] |
PROPERTY, PLANT AND EQUIPMENT (Details) - Schedule of method used for the depreciation of property, plant and equipment [Line Items] |
Useful life (years) | 10
Fixed Installations and Accessories [Member] |
PROPERTY, PLANT AND EQUIPMENT (Details) - Schedule of method used for the depreciation of property, plant and equipment [Line Items] |
Method | Straight line without residual value
Fixed Installations and Accessories [Member] | Bottom of range [member] |
PROPERTY, PLANT AND EQUIPMENT (Details) - Schedule of method used for the depreciation of property, plant and equipment [Line Items] |
Useful life (years) | 10
Fixed Installations and Accessories [Member] | Top of range [member] |
PROPERTY, PLANT AND EQUIPMENT (Details) - Schedule of method used for the depreciation of property, plant and equipment [Line Items] |
Useful life (years) | 10
Motor vehicles [member] |
PROPERTY, PLANT AND EQUIPMENT (Details) - Schedule of method used for the depreciation of property, plant and equipment [Line Items] |
Method | Straight line without residual value
Motor vehicles [member] | Bottom of range [member] |
PROPERTY, PLANT AND EQUIPMENT (Details) - Schedule of method used for the depreciation of property, plant and equipment [Line Items] |
Useful life (years) | 10
Motor vehicles [member] | Top of range [member] |
PROPERTY, PLANT AND EQUIPMENT (Details) - Schedule of method used for the depreciation of property, plant and equipment [Line Items] |
Useful life (years) | 10
Leasehold improvements [member] |
PROPERTY, PLANT AND EQUIPMENT (Details) - Schedule of method used for the depreciation of property, plant and equipment [Line Items] |
Method | Straight line without residual value
Leasehold improvements [member] | Bottom of range [member] |
PROPERTY, PLANT AND EQUIPMENT (Details) - Schedule of method used for the depreciation of property, plant and equipment [Line Items] |
Useful life (years) | 5
Leasehold improvements [member] | Top of range [member] |
PROPERTY, PLANT AND EQUIPMENT (Details) - Schedule of method used for the depreciation of property, plant and equipment [Line Items] |
Useful life (years) | 8

X
- Definition Description of property and Equipment. + References No definition available. + Details
Name: | ltm_DescriptionOfPropertyAndEquipments
Namespace Prefix: | ltm_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | ltm_PROPERTYPLANTANDEQUIPMENTDetailsScheduleofmethodusedforthedepreciationofpropertyplantandequipmentLineItems
Namespace Prefix: | ltm_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The useful lives or depreciation rates used for property, plant and equipment. [Refer: Property, plant and equipment] + References No definition available. + Details
Name: | ltm_UsefulLivesOrDepreciationRatesPropertyPlantAndEquipments
Namespace Prefix: | ltm_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_BottomOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_TopOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=ifrs-full_BearerPlantsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=ltm_PropertyPlantAndEquipment1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=ltm_InformationTechnologyEquipmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=ltm_FixedInstallationsAndAccessoriesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=ifrs-full_MotorVehiclesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=ifrs-full_LeaseholdImprovementsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |