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Depreciation, Amortization and Impairment (Details) - Schedule of depreciation and amortization - CLP ($)
$ in Millions
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Depreciation and amortization      
Depreciation of property and equipment (Note No.15(b) and Note No. 16) $ 29,845 $ 29,194 $ 27,185
Depreciation of rights over leased assets (Note No. 15(d)) 27,647 28,472
Amortization of intangibles assets (Note No.14(b)) 15,865 12,875 10,496
Total $ 73,357 $ 70,541 $ 37,681