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EQUITY - Earnings per share (Details) - CLP ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Series A      
Earnings per share      
Earnings attributable to shareholders $ 73,666,409 $ 58,095,636 $ 82,725,427
Average weighted number of shares 473,289,301 473,289,301 473,289,301
Earnings per share (in CLP) $ 155.65 $ 122.75 $ 174.79
Series B Share      
Earnings per share      
Earnings attributable to shareholders $ 81,031,741 $ 63,904,169 $ 90,996,501
Average weighted number of shares 473,281,303 473,281,303 473,281,303
Earnings per share (in CLP) $ 171.21 $ 135.02 $ 192.27