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Administrative Expenses (Details) - Schedule of administrative expenses - CLP ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
General administrative expenses      
Information technology and communications $ 109,026 $ 99,763 $ 92,264
Maintenance and repair of property and equipment 42,106 48,218 50,297
External advisory services and professional services fees 18,274 14,650 21,099
Surveillance and securities transport services 13,229 10,787 11,533
Office supplies 8,093 11,094 9,366
Insurance premiums 7,621 8,273 5,851
External service of financial information 6,297 5,912 5,461
Postal box, mail, postage and home delivery services 4,718 4,218 5,131
Energy, heating and other utilities 4,445 5,556 5,697
Legal and notary expenses 4,432 4,182 3,996
Expenses for short-term leases and low value 3,825 4,729 5,801
Donations 3,199 2,818 2,238
External service of custody of documentation 3,094 3,359 3,315
Other expenses of obligations for lease agreements 3,070 2,684 2,797
Representation and travel expenses 2,703 2,780 3,657
Other general administrative expenses 3,538 4,495 5,227
Subtotal 237,670 233,518 233,730
Outsource services      
External technological developments expenses 10,164 11,371 9,459
Data processing 9,407 9,333 10,129
Certification and technology testing 7,362 6,062 7,460
Credit pre-evaluation 4,958 12,241 19,159
Other 1,468 2,435 3,470
Subtotal 33,359 41,442 49,677
Board expenses      
Board of Directors Compensation [1] 2,889 2,795 2,509
Other Board expenses 10 30 194
Subtotal 2,899 2,825 2,703
Marketing expenses      
Advertising 30,652 23,561 27,808
Subtotal 30,652 23,561 27,808
Taxes, payroll taxes and contributions      
Contribution to the banking regulator 11,968 11,408 10,285
Real estate contributions 4,852 4,054 2,856
Patents 1,440 1,284 1,209
Other taxes 1,785 789 1,437
Subtotal 20,045 17,535 15,787
Total $ 324,625 $ 318,881 $ 329,705
[1] It includes fees paid to members of the Advisory Committee of Banchile Corredores de Seguros Ltda, of Ch$14 million (Ch$14 million in December 2020 and Ch$13 million in December 2019).