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v3.21.1

Loans and Advances to Banks, net (Details) - Schedule of loans and advance to banks, net - CLP ($) $ in Millions | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Domestic Banks |  |
Interbank loans | $ 260,002 | $ 150,007
Other credits with domestic banks |  |
Provisions for loans to domestic banks | (214) | (33)
Subtotal | 259,788 | 149,974
Foreign Banks |  |
Loans to foreign banks | 185,858 | 289,337
Credits with third countries | 167 | 8,934
Chilean export trade banks | 113,596 | 61,860
Provisions for loans to foreign banks | (244) | (77)
Subtotal | 299,377 | 360,054
Central Bank of Chile |  |
Central Bank deposits | 2,380,033 | 630,053
Other Central Bank credits |  |
Subtotal | 2,380,033 | 630,053
Total | $ 2,939,198 | $ 1,140,081

X
- Definition The amount of central bank deposits. + References No definition available. + Details
Name: | bch_CentralBankDeposits
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | bch_CentralBankOfChileAbstract
Namespace Prefix: | bch_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of Chilean export trade banks. + References No definition available. + Details
Name: | bch_ChileanExportTradeBanks
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of credits with third countries. + References No definition available. + Details
Name: | bch_CreditsWithThirdCountries
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | bch_DomesticBanksAbstract
Namespace Prefix: | bch_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | bch_ForeignBanksAbstract
Namespace Prefix: | bch_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of loans outstanding with interbank. + References No definition available. + Details
Name: | bch_InterbankLoans
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | bch_LoansAndAdvancesToBank
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of loans and advances with central bank of Chile. + References No definition available. + Details
Name: | bch_LoansAndAdvancesWithCentralBankOfChile
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of loans and advances with domestic banks. + References No definition available. + Details
Name: | bch_LoansAndAdvancesWithDomesticBanks
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of loans and advances with foreign banks. + References No definition available. + Details
Name: | bch_LoansAndAdvancesWithForeignBanks
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of loans outstanding with foreign banks. + References No definition available. + Details
Name: | bch_LoansToForeignBanks
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of Other Central Bank credits. + References No definition available. + Details
Name: | bch_OtherCentralBankCredits
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | bch_OtherCreditsWithDomesticBanks
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of provisions for loans to domestic banks. + References No definition available. + Details
Name: | bch_ProvisionsForLoansToDomesticBanks
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount of provisions for loans to foreign banks. + References No definition available. + Details
Name: | bch_ProvisionsForLoansToForeignBanks
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant