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Equity (Details) - Schedule of basic and diluted earnings per share
$ / shares in Units, $ in Millions
 12 Months Ended
Dec. 31, 2021
CLP ($)
$ / shares
shares
Dec. 31, 2021
$ / shares
Dec. 31, 2020
CLP ($)
$ / shares
shares
Dec. 31, 2020
$ / shares
Dec. 31, 2019
CLP ($)
$ / shares
shares
Dec. 31, 2019
$ / shares
a) Basic earnings per share            
Total attributable to the shareholders of the Bank (in Pesos) | $ $ 845,645   $ 547,614   $ 619,091  
Weighted average number of outstanding shares (in Shares) | shares 188,446,126,794   188,446,126,794   188,446,126,794  
Basic earnings per share (in Ch$)   $ 4,487   $ 2.906   $ 3.285
Basic earnings per share from continuing operations (in Ch$)   4,487   2.906   3.276
Basic earnings per share from discontinued operations (in Ch$) (in Pesos per share)     $ 0.009  
b) Diluted earnings per share            
Total attributable to the shareholders of the Bank (in Pesos) | $ $ 845,645   $ 547,614   $ 619,091  
Weighted average number of outstanding shares (in Shares) | shares 188,446,126,794   188,446,126,794   188,446,126,794  
Adjusted number of shares (in Shares) | shares 188,446,126,794   188,446,126,794   188,446,126,794  
Diluted earnings per share (in Ch$)   4,487   2,906   3,285
Diluted earnings per share from continuing operations (in Ch$)   $ 4,487   $ 2,906   $ 3,276
Diluted earnings per share from discontinued operations (in Ch$) (in Pesos per share)     $ 0.009