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OTHER (LOSSES) GAINS (Details) - CLP ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
OTHER (LOSSES) GAINS      
(Losses) gains on ineffective portion of hedge derivatives   $ (2,707,802) $ (2,536,079)
Other income and expenses $ 2,876 (57) (1,190)
Total $ 2,876 $ (2,707,859) $ (2,537,269)