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Other Operating Income and Expenses (Details) - Schedule of Bank and its Subsidiaries Present Other Operating Income - CLP ($) $ in Millions | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Schedule of Bank and its Subsidiaries Present Other Operating Income [Abstract] |  |  |
Expense recovery | $ 25,938 | $ 1,938 | $ 1,393
Release of provisions not related to credit risk | 23,355 |  |
Revaluation of prepaid monthly payments | 9,144 | 17,044 | 5,183
Revaluation of tax refunds from previous years | 6,905 | 204 | 3,117
Income from investment properties | 6,793 | 6,765 | 6,069
Income from correspondent banks | 2,923 | 3,116 | 2,800
Fiduciary and trustee commissions | 132 | 135 | 261
Foreign trade income | 98 | 75 | 55
Expense recovery income | 65 | 48 | 39
Others income | 642 | 334 | 2,146
Total | $ 75,995 | $ 29,659 | $ 21,063

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- Definition Expense recovery. + References No definition available. + Details
Name: | bch_ExpenseRecovery
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Expense recovery income. + References No definition available. + Details
Name: | bch_ExpenseRecoveryIncome
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Fiduciary and trustee commissions. + References No definition available. + Details
Name: | bch_FiduciaryAndTrusteeCommissions
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Foreign trade income. + References No definition available. + Details
Name: | bch_ForeignTradeIncome
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Income from card brands issued. + References No definition available. + Details
Name: | bch_IncomeFromCardBrandsIssued
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Amount of operating income. + References No definition available. + Details
Name: | bch_OtherOperatingIncomeTotal
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of operating income that the entity does not separately disclose in the same statement or note. + References No definition available. + Details
Name: | bch_OthersIncome
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of release of provision not related t credit risk. + References No definition available. + Details
Name: | bch_ReleaseOfProvisionsNotRelatedToCreditRisk
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of rental income arising from investment property recognised in profit or loss. [Refer: Investment property] + References No definition available. + Details
Name: | bch_RentalIncomeFromInvestmentsProperty
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Revaluation of prepaid monthly payments. + References No definition available. + Details
Name: | bch_RevaluationOfPrepaidMonthlyPayments
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of revaluation of tax refunds. + References No definition available. + Details
Name: | bch_RevaluationOfTaxRefunds
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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