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Equity - Other Comprehensive Income (Details) - CLP ($)
$ in Millions
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Other comprehensive income      
Cumulative translation adjustment     $ (59)
Fair market value adjustment for available-for-sale instruments $ 10,121 $ (3,476)  
Cash Flow hedge $ (22,589) $ 11,158 $ (38,366)