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

The gains (losses) recognised in other comprehensive income on cash flow hedges, before tax. [Refer: Cash flow hedges [member]]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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