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Financial Instruments (Details Textual) - CLP ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Disclosure of Cash and Cash Equivalents [Line Items] |  |  |
Gains (losses) on cash flow hedges, before tax | $ 17,077,670 | $ 37,990,079 | $ (34,786,480)
Cash flow hedges [member] |  |  |
Disclosure of Cash and Cash Equivalents [Line Items] |  |  |
Gains (losses) on cash flow hedges, before tax | $ 345,986 | $ 63,008 | $ 5,661

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