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TRADE ACCOUNTS AND OTHER ACCOUNTS RECEIVABLE - Movement in allowance for expected credit losses (Details) - Trade Receivables - CLP ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Movement in the allowance for expected credit losses    
Opening balance $ 4,711,371 $ 6,795,663
Increase (decrease) 150,671 1,697,887
Provision reversal (654,381) (3,832,220)
Increases (decrease) for changes of foreign currency 586,324 50,041
Sub - total movements (218,728) (2,084,292)
Ending balance $ 4,492,643 $ 4,711,371