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Contingencies and Commitments (Details) - Schedule of contingent loans and other liabilities - CLP ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
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Guarantees and sureties |  |
Guarantees and sureties in chilean currency |  |
Guarantees and sureties in foreign currency | 348,774 | 439,669
Letters of credit for goods circulation operations | 424,195 | 450,024
Debt purchase commitments in local currency abroad |  |
Transactions related to contingent events |  |
Transactions related to contingent events in chilean currency | 2,230,917 | 1,952,980
Transactions related to contingent events in foreign currency | 466,691 | 413,974
Undrawn credit lines with immediate termination |  |
Balance of lines of credit and agreed overdraft in current account – commercial loans | 1,396,659 | 1,483,884
Balance of lines of credit on credit card – commercial loans | 290,950 | 261,642
Balance of lines of credit and agreed overdraft in current account – consumer loans | 1,457,303 | 1,350,157
Balance of lines of credit on credit card – consumer loans | 6,202,951 | 5,555,510
Balance of lines of credit and agreed overdraft in current account – due from banks loans |  |
Undrawn credit lines |  |
Balance of lines of credit and agreed overdraft in current account – commercial loans |  |
Balance of lines of credit on credit card – commercial loans |  |
Balance of lines of credit and agreed overdraft in current account – consumer loans |  |
Balance of lines of credit on credit card – consumer loans |  |
Balance of lines of credit and agreed overdraft in current account – due from banks loans |  |
Other commitments |  |
Credits for higher studies Law No. 20,027 (CAE) |  |
Other irrevocable credit commitments | 72,355 | 78,951
Other credit commitments |  |
Total | 12,890,795 | 11,986,791
Transactions on behalf of third parties |  |
Collections | 174,238 | 152,297
Placement or sale of financial instruments |  |
Transferred financial assets managed by the bank |  |
Third-party resources managed by the bank | 766,706 | 749,007
Subtotal | 940,944 | 901,304
Securities custody |  |
Securities safekept by a banking subsidiary | 5,593,924 | 5,232,546
Securities safekept by the Bank | 3,646,536 | 2,459,320
Securities safekept deposited in another entity | 14,855,338 | 12,601,349
Securities issued by the bank |  |
Subtotal | 24,095,798 | 20,293,215
Total | $ 25,036,742 | $ 21,194,519

X
- Definition An overdraft occurs when there isn't enough money in an account to cover a transaction or withdrawal in consumer loans. + References No definition available. + Details
Name: | bch_BalanceOfLinesOfCreditAndAgreedOverdraftInCurrentAccountConsumerLoans
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition An overdraft facility in a Current Account allows you to withdraw from even though the balance is zero. + References No definition available. + Details
Name: | bch_BalanceOfLinesOfCreditAndAgreedOverdraftInCurrentAccountDueFromBanksLoans
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition An overdraft occurs when there isn't enough money in an account to cover a transaction or withdrawal for commercial loans. + References No definition available. + Details
Name: | bch_BalanceOfLinesOfCreditOnCreditCardCommercialLoans
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition A personal line of credit is a revolving credit account that lets you borrow up to a limit, without having to borrow the full amount at a go. + References No definition available. + Details
Name: | bch_BalanceOfLinesOfCreditOnCreditCardConsumerLoans
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Contingent loans, total. + References No definition available. + Details
Name: | bch_ContingentLoansTotal
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Other Commitments means one or more classes of term loan commitments or revolving credit commitments. + References No definition available. + Details
Name: | bch_CreditsForHigherStudiesLaw
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Debt purchase commitments in local currency abroad. + References No definition available. + Details
Name: | bch_DebtPurchaseCommitmentsInLocalCurrencyAbroad
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

X
- Definition Surety refers to the guarantee that a person or party or company will pay off the loans of another party in chilean currency. + References No definition available. + Details
Name: | bch_GuaranteesAndSuretiesInChileanCurrency
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Surety refers to the guarantee that a person or party or company will pay off the loans of another party in foreing currency. + References No definition available. + Details
Name: | bch_GuaranteesAndSuretiesInForeingCurrency
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Letters of credit for goods circulation operations. + References No definition available. + Details
Name: | bch_LettersOfCreditForGoodsCirculationOperations
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition An overdraft occurs when there isn't enough money in an account to cover a transaction or withdrawal. + References No definition available. + Details
Name: | bch_LinesOfCreditAndAgreedOverdraftInCurrentAccountCommercialLoans
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Undrawn credit lines and agreed overdraft in current account consumer loans. + References No definition available. + Details
Name: | bch_LinesOfCreditAndAgreedOverdraftInCurrentAccountConsumerLoans
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Undrawn credit lines on credit card consumer loans. + References No definition available. + Details
Name: | bch_LinesOfCreditOnCreditCardConsumerLoans
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Other credit commitments. + References No definition available. + Details
Name: | bch_OtherCreditCommitments
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Irrevocable loan commitment, also called virtual loan commitment, refers to the loan commitment which is legally binding and our bank cannot revoke optionally without customers' consent. + References No definition available. + Details
Name: | bch_OtherIrrevocableCreditCommitments
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Transactions on behalf of third parties for the placement or sale of financial instruments. + References No definition available. + Details
Name: | bch_PlacementOrSaleOfFinancialInstruments
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Responsibilities assumed to meet customer needs, total. + References No definition available. + Details
Name: | bch_ResponsibilitiesAssumedToMeetCustomerNeedsTotal
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

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- Definition Securities custody, subtotal. + References No definition available. + Details
Name: | bch_SecuritiesCustodySubtotal
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Securities issued by the bank. + References No definition available. + Details
Name: | bch_SecuritiesIssuedByTheBank
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Securities safekept by a banking subsidiary. + References No definition available. + Details
Name: | bch_SecuritiesSafekeptByABankingSubsidiary
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Securities safekept by the bank. + References No definition available. + Details
Name: | bch_SecuritiesSafekeptByTheBank
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Securities safekept deposited in another entity. + References No definition available. + Details
Name: | bch_SecuritiesSafekeptDepositedInAnotherEntity
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Transactions on behalf of third parties of the third-party resources managed by the bank. + References No definition available. + Details
Name: | bch_ThirdpartyResourcesManagedByTheBank
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

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- Definition Transactions on behalf of third parties collections. + References No definition available. + Details
Name: | bch_TransactionsOnBehalfOfThirdPartiesCollections
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Transactions on behalf of third parties, subtotal. + References No definition available. + Details
Name: | bch_TransactionsOnBehalfOfThirdPartiesSubtotal
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

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- Definition A contingent payment sale is a type of sale where the specifics of the sale are tied to future events. + References No definition available. + Details
Name: | bch_TransactionsRelatedToContingentEventsInChileanCurrency
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition A contingent payment sale is a type of sale where the specifics of the sale are tied to future events. + References No definition available. + Details
Name: | bch_TransactionsRelatedToContingentEventsInForeingCurrency
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Transactions on behalf of third parties for the transferred financial assets managed by the bank. + References No definition available. + Details
Name: | bch_TransferredFinancialAssetsManagedByTheBank
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

X
- Definition Undrawn credit lines on credit card commercial loans. + References No definition available. + Details
Name: | bch_UndrawnCreditLinesOnCreditCardCommercialLoans
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

X
- Definition Undrawn lines of credit and agreed overdraft in current account commercial loans. + References No definition available. + Details
Name: | bch_UndrawnLinesOfCreditAndAgreedOverdraftInCurrentAccountCommercialLoans
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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