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Investment Properties (Tables)
12 Months Ended
Dec. 31, 2020
Disclosure of investment property [text block] [Abstract]  
Schedule of investment properties
   2018   2019   2020 
   MCh$   MCh$   MCh$ 
Net Balance as of January 1,   14,306    13,938    13,190 
Additions resulting from business combinations            
Reclassifications       (389)    
Disposals            
Depreciation charges in the period   (368)   (359)   (357)
Impairment            
Net Balance as of December 31,   13,938    13,190    12,833