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Equity - Other Comprehensive Income (Details) - CLP ($)
$ in Millions
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Other comprehensive income      
Cumulative translation adjustment $ 59 $ (59) $ 2
Fair market value adjustment for available-for-sale instruments 3,476 (39,770) 4,886
Cash Flow hedge $ 11,158 $ (38,366) $ 7,728