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Other incomes by function (Details) - CLP ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Disclosure of other income by function [Abstract]      
Sales of fixed assets $ 5,084,269 $ 2,464,820 $ 1,641,317
Rental income 315,325 266,335 535,555
Sale of glass 934,863 731,111 1,334,123
Claims recovery 82,896 831,230 761,290
Advance term license [1] 0 213,400,487 0
Others [1] 16,167,357 10,761,071 2,445,617
Total $ 22,584,710 $ 228,455,054 $ 6,717,902
[1] See Note 1 – General information, letter C).