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OTHER INCOME (Details) - CLP ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
OTHER INCOME      
Gain on disposal of Property, plant and equipment $ 265,514 $ 1,984,547 $ 312,470
Recovery AFIP claim   232,617  
Recover PIS and COFINS credits (1) 40,281,550    
Others 400,094 392,004 238,364
Total $ 40,947,158 $ 2,609,168 $ 550,834