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INCOME TAX EXPENSE AND DEFERRED TAXES - Movement in deferred income tax accounts (Details) - CLP ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Movement in deferred income tax accounts      
Opening Balance $ 151,743,678 $ 168,085,407 $ 145,245,948
Increase (decrease) in deferred tax 4,507,688 4,411,619 20,905,005
Increase (decrease) due to foreign currency translation 10,344,734 (20,753,348) 1,934,454
Total movements 14,852,422 (16,341,729) 22,839,459
Ending balance $ 166,596,100 $ 151,743,678 $ 168,085,407