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Risk Management (Details) - Schedule of guarantee values - CLP ($)
$ in Millions
Dec. 31, 2020
Dec. 31, 2019
Loans to corporate entities [member]    
Risk Management (Details) - Schedule of guarantee values [Line Items]    
Maximum exposure to credit risk $ 12,810,975 $ 12,117,724
Mortgages 3,091,284 2,660,585
Pledge 128,366 82,365 [1]
Securities 565,761 345,246
Warrants 2,842 2,182
Net collateral 3,788,253 3,090,378
Net exposure 9,022,722 9,027,346
Small Business Loans [Member]    
Risk Management (Details) - Schedule of guarantee values [Line Items]    
Maximum exposure to credit risk 4,790,622 4,176,488
Mortgages 3,178,176 3,208,206
Pledge 28,832 30,466 [1]
Securities 14,242 26,674
Warrants
Net collateral 3,221,250 3,265,346
Net exposure 1,569,372 911,142
Consumers loans [Member]    
Risk Management (Details) - Schedule of guarantee values [Line Items]    
Maximum exposure to credit risk 3,948,721 4,532,333
Mortgages 333,191 362,140
Pledge 795 966 [1]
Securities 2,518 2,045
Warrants
Net collateral 336,504 365,151
Net exposure 3,612,217 4,167,182
Mortgages [member]    
Risk Management (Details) - Schedule of guarantee values [Line Items]    
Maximum exposure to credit risk 9,387,372 9,206,727
Mortgages 8,499,584 8,019,519
Pledge 113 51 [1]
Securities 87 176
Warrants
Net collateral 8,499,784 8,019,746
Net exposure 887,588 1,186,981
Loans To Customers Net [Member]    
Risk Management (Details) - Schedule of guarantee values [Line Items]    
Maximum exposure to credit risk 30,937,690 30,033,272
Mortgages 15,102,235 14,250,450
Pledge 158,106 113,848 [1]
Securities 582,608 374,141
Warrants 2,842 2,182
Net collateral 15,845,791 14,740,621
Net exposure $ 15,091,899 $ 15,292,651
[1] Includes agricultural and industrial pledges, and pledges without conveyance.