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Contingencies and Commitments (Details) - Schedule of Contingent Loans and Other Liabilities - CLP ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
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Guarantees and sureties |  |
Guarantees and sureties in chilean currency |  |
Guarantees and sureties in foreign currency | 351,531 | 348,774
Letters of credit for goods circulation operations | 350,604 | 424,195
Debt purchase commitments in local currency abroad |  |
Transactions related to contingent events |  |
Transactions related to contingent events in chilean currency | 2,209,109 | 2,230,917
Transactions related to contingent events in foreign currency | 431,188 | 466,691
Undrawn credit lines with immediate termination |  |
Balance of lines of credit and agreed overdraft in current account — commercial loans | 1,581,711 | 1,396,659
Balance of lines of credit on credit card — commercial loans | 317,560 | 290,950
Balance of lines of credit and agreed overdraft in current account — consumer loans | 1,476,241 | 1,457,303
Balance of lines of credit on credit card — consumer loans | 6,708,946 | 6,202,951
Balance of lines of credit and agreed overdraft in current account — due from banks loans |  |
Undrawn credit lines |  |
Other commitments |  |
Credits for higher studies Law No. 20,027 (CAE) |  |
Other irrevocable credit commitments | 120,545 | 72,355
Other credit commitments |  |
Total | 13,547,435 | 12,890,795
Transactions on behalf of third parties |  |
Collections | 176,146 | 174,238
Placement or sale of financial instruments |  |
Transferred financial assets managed by the bank |  |
Third-party resources managed by the bank | 921,105 | 766,706
Subtotal | 1,097,251 | 940,944
Securities custody |  |
Securities safekept by a banking subsidiary | 6,267,729 | 5,593,924
Securities safekept by the Bank | 3,133,770 | 3,646,536
Securities safekept deposited in another entity | 17,238,292 | 14,855,338
Securities issued by the bank |  |
Subtotal | 26,639,791 | 24,095,798
Total | $ 27,737,042 | $ 25,036,742

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- Definition Balance of lines of credit and agreed overdraft in current account – consumer loans. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition An overdraft facility in a Current Account allows you to withdraw from even though the balance is zero. + References No definition available. + Details
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- 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

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

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

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

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- 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
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Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- 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
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

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

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- References No definition available. + Details
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Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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

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- 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
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Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

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

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- References No definition available. + Details
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Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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

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

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

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- 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

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

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- 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

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

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

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- References No definition available. + Details
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Data Type: | xbrli:stringItemType
Balance Type: | na
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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
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Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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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
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Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- 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

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- Definition The amount of contingent liabilities related to undrawn credit lines. + References No definition available. + Details
Name: | bch_UndrawnCreditLines
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

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

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- 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