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DERIVATIVE ASSETS AND LIABILITIES (Details)
$ in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2017
CLP ($)
Dec. 31, 2016
CLP ($)
Dec. 31, 2015
CLP ($)
Dec. 31, 2017
USD ($)
Dec. 31, 2016
USD ($)
DERIVATIVE ASSETS AND LIABILITIES          
Gain (losses) from cash flow hedges $ (813,844) $ (42,836,575) $ 31,134,391    
Derivative Instrument US Bond Obligations | Currency swap contract | Cash flow hedges          
DERIVATIVE ASSETS AND LIABILITIES          
Hedged item, liabilities       $ 570,000  
Derivative financial assets held for hedging 61,898,833        
Gains on hedging instrument in other equity reserves 2,875,365        
Gain (losses) from cash flow hedges 13,443,698        
Gains (losses) on ineffectiveness of cash flow hedges recognised in profit or loss (2,112,608)        
Derivative Instrument Raw Material Purchases | Forward contract | Fair value hedges          
DERIVATIVE ASSETS AND LIABILITIES          
Derivative financial assets held for hedging 469,019        
Gain (losses) from cash flow hedges (3,655,493)        
Notional amount       $ 62,800 $ 61,100
Derivative financial liabilities held for hedging 445,278 $ 1,229,354      
Accumulated gain loss on derivative financial instruments $ 219,306