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SEGMENTAL INFORMATION (Details) - Schedule of financial statements of operating segment - USD ($) $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Jan. 01, 2018 | Dec. 31, 2016
SEGMENTAL INFORMATION (Details) - Schedule of financial statements of operating segment [Line Items] |  |  |  |  |  |  |
Income from ordinary activities from external customers |  | $ 10,070,063 | $ 9,895,456 | $ 9,613,907 |  |  |
Other operating income |  | 360,864 | 472,758 | 549,889 |  |  |
Depreciation and amortization |  | 1,469,976 | 1,372,628 | 1,377,135 |  |  |
Result of indexation units |  | 14,989 | 865 | (748) |  |  |
Income (loss) attributable to owners of the parents |  | 190,430 | 309,811 | 108,896 |  |  |
Expenses for income tax |  | (53,697) | 73,879 | 158,998 |  |  |
Net income for the year |  | 195,613 | 341,786 | 154,386 |  |  |
Assets of segment |  | 21,087,806 | 20,078,722 | 21,673,713 |  |  |
Segment liabilities |  | 17,958,629 | 16,638,121 | 17,717,420 |  |  |
Property, plant and equipment |  | 12,919,618 | 12,501,809 | 12,930,652 |  | $ 10,065,335 | $ 10,498,149
Intangibles other than goodwill |  | 1,448,241 | 1,441,072 | 1,617,247 |  |  | $ 1,610,313
Restated [Member] |  |  |  |  |  |  |
SEGMENTAL INFORMATION (Details) - Schedule of financial statements of operating segment [Line Items] |  |  |  |  |  |  |
Income from ordinary activities from external customers | [1] |  | 9,895,456 | 9,613,907 |  |  |
Other operating income |  |  | 472,758 | 549,889 |  |  |
Interest income |  |  | 53,253 | 78,695 |  |  |
Interest expense |  |  | (539,137) | (579,233) |  |  |
Total net interest expense |  |  | (485,884) | (500,538) |  |  |
Depreciation and amortization |  |  | (1,372,628) | (1,377,135) |  |  |
Material non-cash items other than depreciation and amortization |  |  | (104,123) | (105,404) |  |  |
Disposal of fixed assets and inventory losses |  |  | (46,351) | (39,238) |  |  |
Doubtful accounts |  |  | (18,837) | (18,416) |  |  |
Exchange differences |  |  | (38,070) | (48,498) |  |  |
Result of indexation units |  |  | (865) | 748 |  |  |
Income (loss) attributable to owners of the parents |  |  | 309,811 | 108,896 | [2] |  |
Expenses for income tax |  |  | 73,879 | (158,998) |  |  |
Net income for the year |  |  | 341,786 | 154,386 |  |  |
Assets of segment |  |  | 20,078,722 | 18,797,972 |  |  |
Segment liabilities |  |  | 16,638,121 | 14,530,736 |  |  |
Amount of non-current asset additions |  |  | 1,090,177 | 412,846 |  |  |
Property, plant and equipment |  |  | 995,085 | 325,513 |  |  |
Intangibles other than goodwill |  |  | 95,092 | 87,333 |  |  |
Purchase of non-monetary assets of segment |  |  | 756,913 | 490,983 |  |  |
Restated [Member] | Passenger [Member] |  |  |  |  |  |  |
SEGMENTAL INFORMATION (Details) - Schedule of financial statements of operating segment [Line Items] |  |  |  |  |  |  |
Income from ordinary activities from external customers |  |  | 8,708,988 | 8,494,477 |  |  |
Restated [Member] | Freight [Member] |  |  |  |  |  |  |
SEGMENTAL INFORMATION (Details) - Schedule of financial statements of operating segment [Line Items] |  |  |  |  |  |  |
Income from ordinary activities from external customers |  |  | 1,186,468 | 1,119,430 |  |  |
Air Transportation [Member] |  |  |  |  |  |  |
SEGMENTAL INFORMATION (Details) - Schedule of financial statements of operating segment [Line Items] |  |  |  |  |  |  |
Income from ordinary activities from external customers | [1] | 10,070,063 |  |  |  |  |
Other operating income |  | 360,864 |  |  |  |  |
Interest income |  | 26,283 |  |  |  |  |
Interest expense |  | (589,934) |  |  |  |  |
Total net interest expense |  | (563,651) |  |  |  |  |
Depreciation and amortization |  | (1,469,976) |  |  |  |  |
Material non-cash items other than depreciation and amortization |  | (130,011) |  |  |  |  |
Disposal of fixed assets and inventory losses |  | (60,893) |  |  |  |  |
Doubtful accounts |  | (21,558) |  |  |  |  |
Exchange differences |  | (32,571) |  |  |  |  |
Result of indexation units |  | (14,989) |  |  |  |  |
Income (loss) attributable to owners of the parents |  | 190,430 |  |  |  |  |
Expenses for income tax |  | 53,697 |  |  |  |  |
Net income for the year |  | 195,613 |  |  |  |  |
Assets of segment |  | 21,087,806 |  |  |  |  |
Segment liabilities |  | 17,958,629 |  |  |  |  |
Amount of non-current asset additions |  | 2,658,541 |  |  |  |  |
Property, plant and equipment |  | 2,519,305 |  |  |  |  |
Intangibles other than goodwill |  | 139,236 |  |  |  |  |
Purchase of non-monetary assets of segment |  | 1,416,794 |  |  |  |  |
Air Transportation [Member] | Passenger [Member] |  |  |  |  |  |  |
SEGMENTAL INFORMATION (Details) - Schedule of financial statements of operating segment [Line Items] |  |  |  |  |  |  |
Income from ordinary activities from external customers |  | 9,005,629 |  |  |  |  |
Air Transportation [Member] | Freight [Member] |  |  |  |  |  |  |
SEGMENTAL INFORMATION (Details) - Schedule of financial statements of operating segment [Line Items] |  |  |  |  |  |  |
Income from ordinary activities from external customers |  | $ 1,064,434 |  |  |  |  |
Air Transportation [Member] | Restated [Member] |  |  |  |  |  |  |
SEGMENTAL INFORMATION (Details) - Schedule of financial statements of operating segment [Line Items] |  |  |  |  |  |  |
Income from ordinary activities from external customers | [1] |  | 9,895,456 | 9,613,907 |  |  |
Other operating income |  |  | 472,758 | 549,889 |  |  |
Interest income |  |  | 53,253 | 78,695 |  |  |
Interest expense |  |  | (539,137) | (579,233) |  |  |
Total net interest expense |  |  | (485,884) | (500,538) |  |  |
Depreciation and amortization |  |  | (1,372,628) | (1,377,135) |  |  |
Material non-cash items other than depreciation and amortization |  |  | (104,123) | (105,404) |  |  |
Disposal of fixed assets and inventory losses |  |  | (46,351) | (39,238) |  |  |
Doubtful accounts |  |  | (18,837) | (18,416) |  |  |
Exchange differences |  |  | (38,070) | (48,498) |  |  |
Result of indexation units |  |  | (865) | 748 |  |  |
Income (loss) attributable to owners of the parents |  |  | 309,811 | 108,896 |  |  |
Expenses for income tax |  |  | (73,879) | (158,998) |  |  |
Net income for the year |  |  | 341,786 | 154,386 |  |  |
Assets of segment |  |  | 20,078,722 | 21,673,713 |  |  |
Segment liabilities |  |  | 16,638,121 | 17,717,420 |  |  |
Amount of non-current asset additions |  |  | 1,090,177 | 412,846 |  |  |
Property, plant and equipment |  |  | 995,085 | 325,513 |  |  |
Intangibles other than goodwill |  |  | 95,092 | 87,333 |  |  |
Purchase of non-monetary assets of segment |  |  | 756,913 | 499,872 |  |  |
Air Transportation [Member] | Restated [Member] | Passenger [Member] |  |  |  |  |  |  |
SEGMENTAL INFORMATION (Details) - Schedule of financial statements of operating segment [Line Items] |  |  |  |  |  |  |
Income from ordinary activities from external customers |  |  | 8,708,988 | 8,494,477 |  |  |
Air Transportation [Member] | Restated [Member] | Freight [Member] |  |  |  |  |  |  |
SEGMENTAL INFORMATION (Details) - Schedule of financial statements of operating segment [Line Items] |  |  |  |  |  |  |
Income from ordinary activities from external customers |  |  | 1,186,468 | 1,119,430 |  |  |
Air Transportation [Member] | Previously Reported [Member] |  |  |  |  |  |  |
SEGMENTAL INFORMATION (Details) - Schedule of financial statements of operating segment [Line Items] |  |  |  |  |  |  |
Income from ordinary activities from external customers | [1] |  | 9,887,090 | 9,159,031 |  |  |
Income from ordinary activities from transactions with other operating segments |  |  |  | 454,876 |  |  |
Other operating income |  |  | 346,315 | 308,937 |  |  |
Interest income |  |  | 27,181 | 28,184 |  |  |
Interest expense |  |  | (539,137) | (579,233) |  |  |
Total net interest expense |  |  | (511,956) | (551,049) |  |  |
Depreciation and amortization |  |  | (1,365,809) | (1,384,344) |  |  |
Material non-cash items other than depreciation and amortization |  |  | (104,038) | (105,259) |  |  |
Disposal of fixed assets and inventory losses |  |  | (46,351) | (39,238) |  |  |
Doubtful accounts |  |  | (18,741) | (18,272) |  |  |
Exchange differences |  |  | (38,081) | (48,497) |  |  |
Result of indexation units |  |  | (865) | 748 |  |  |
Income (loss) attributable to owners of the parents |  |  | 200,209 | (49,887) | [2] |  |
Expenses for income tax |  |  | 121,155 | (89,870) |  |  |
Net income for the year |  |  | 287,206 | (4,397) |  |  |
Assets of segment |  |  | 18,943,127 | 17,430,937 |  |  |
Segment liabilities |  |  | 16,212,905 | 14,007,916 |  |  |
Amount of non-current asset additions |  |  | 1,090,177 | 412,846 |  |  |
Property, plant and equipment |  |  | 995,085 | 325,513 |  |  |
Intangibles other than goodwill |  |  | 95,092 | 87,333 |  |  |
Purchase of non-monetary assets of segment |  |  | 756,913 | 490,983 |  |  |
Air Transportation [Member] | Previously Reported [Member] | Passenger [Member] |  |  |  |  |  |  |
SEGMENTAL INFORMATION (Details) - Schedule of financial statements of operating segment [Line Items] |  |  |  |  |  |  |
Income from ordinary activities from external customers |  |  | 8,700,622 | 8,039,601 |  |  |
Air Transportation [Member] | Previously Reported [Member] | Freight [Member] |  |  |  |  |  |  |
SEGMENTAL INFORMATION (Details) - Schedule of financial statements of operating segment [Line Items] |  |  |  |  |  |  |
Income from ordinary activities from external customers |  |  | 1,186,468 | 1,119,430 |  |  |
Segment Adjustment |  |  |  |  |  |  |
SEGMENTAL INFORMATION (Details) - Schedule of financial statements of operating segment [Line Items] |  |  |  |  |  |  |
Income from ordinary activities from external customers | [1] |  | 60,020 | 454,876 |  |  |
Income from ordinary activities from transactions with other operating segments |  |  |  | 67,554 |  |  |
Other operating income |  |  | 126,443 | 240,952 |  |  |
Interest income |  |  | 26,072 | 50,511 |  |  |
Total net interest expense |  |  | 26,072 | 50,511 |  |  |
Depreciation and amortization |  |  | (6,819) | 7,209 |  |  |
Material non-cash items other than depreciation and amortization |  |  | (85) | (145) |  |  |
Doubtful accounts |  |  | (96) | (144) |  |  |
Exchange differences |  |  | 11 | (1) |  |  |
Income (loss) attributable to owners of the parents |  |  | 109,602 | 158,783 | [2] |  |
Expenses for income tax |  |  | (47,276) | (69,128) |  |  |
Net income for the year |  |  | 54,580 | 158,783 |  |  |
Assets of segment |  |  | 1,145,942 | 1,373,049 |  |  |
Segment liabilities |  |  | 449,347 | 563,849 |  |  |
Segment Adjustment | Passenger [Member] |  |  |  |  |  |  |
SEGMENTAL INFORMATION (Details) - Schedule of financial statements of operating segment [Line Items] |  |  |  |  |  |  |
Income from ordinary activities from external customers |  |  | 60,020 | 454,876 |  |  |
Eliminations [Member] |  |  |  |  |  |  |
SEGMENTAL INFORMATION (Details) - Schedule of financial statements of operating segment [Line Items] |  |  |  |  |  |  |
Income from ordinary activities from external customers | [1] |  | (51,654) |  |  |  |
Income from ordinary activities from transactions with other operating segments |  |  |  | (522,430) |  |  |
Income (loss) attributable to owners of the parents | [2] |  |  |  |  |  |
Assets of segment |  |  | (10,347) | (6,014) |  |  |
Segment liabilities |  |  | (24,131) | $ (41,029) |  |  |
Eliminations [Member] | Passenger [Member] |  |  |  |  |  |  |
SEGMENTAL INFORMATION (Details) - Schedule of financial statements of operating segment [Line Items] |  |  |  |  |  |  |
Income from ordinary activities from external customers |  |  | $ (51,654) |  |  |  |
[1] | The Company does not have any interest income that should be recognized as income from ordinary activities by interest.
[2] | The result of the Company includes a net result of ThUS$ (8,162) resulting from the application of IAS 21 and IAS 29, for the subsidiaries that are in hyperinflationary economies.

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