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Contingencies and Commitments (Details) - Schedule of commitments accounted for in off-balance sheet accounts - CLP ($)
$ in Millions
Dec. 31, 2020
Dec. 31, 2019
Off-balance-sheet accounts    
Warranty by endorsement and sureties $ 224,079 $ 280,838
Confirmed foreign letters of credit 58,299 94,673
Issued foreign letters of credit 343,663 316,916
Performance guarantees 2,214,370 2,283,390
Undrawn credit lines 7,650,382 7,870,260
Other commitments 107,707 155,163
Transactions on behalf of third parties    
Collections 157,671 144,043
Third-party resources managed by the Bank:    
Financial assets managed on behalf of third parties 16,024 6,418
Other assets managed on behalf of third parties
Financial assets acquired on its own behalf 80,788 73,140
Fiduciary activities    
Securities held in safe custody in the Bank 2,023,313 2,677,353
Securities held in safe custody in other entities 18,467,801 18,719,297
Total $ 31,344,097 $ 32,621,491