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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