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Other Operating Income and Expenses (Details) - Schedule of Bank and its Subsidiaries Present Other Operating Expenses - 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 Expenses [Abstract] |  |  |
Write-offs for operating risks | $ 30,763 | $ 18,391 | $ 13,898
Expenses for credit operations of financial leasing | 4,071 | 4,786 | 242
Legal expenses | 2,918 | 1,917 | 357
Correspondent banks | 2,594 | 3,321 | 2,614
Card administration | 606 | 2,086 | 2,099
Expenses for charge-off leased assets recoveries | 493 | 130 | 583
Renegotiated loan insurance premium | 290 | 351 | 416
Life ensurance | 275 | 258 | 233
Valuation expense | 250 | 226 | 249
Provisions for trials and litigation | 145 | 56 | 2
(Release) expense of provisions for operational risk | (1,324) | 1,523 | 765
Expense recovery from operational risk events | (9,217) | (6,050) | (4,010)
Others expenses | 1,041 | 706 | 1,900
Total | $ 32,905 | $ 27,701 | $ 19,348

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- Definition Card administration. + References No definition available. + Details
Name: | bch_CardAdministration
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Correspondent banks. + References No definition available. + Details
Name: | bch_CorrespondentBanks
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Expense recovery from operational risk events. + References No definition available. + Details
Name: | bch_ExpenseRecoveryFromOperationalRiskEvents
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Expenses for charge-off leased assets recoveries. + References No definition available. + Details
Name: | bch_ExpensesForChargeoffLeasedAssetsRecoveries
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Expenses for credit operations of financial leasing. + References No definition available. + Details
Name: | bch_ExpensesForCreditOperationsOfFinancialLeasing
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Legal expenses. + References No definition available. + Details
Name: | bch_LegalExpenses
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Life ensurance. + References No definition available. + Details
Name: | bch_LifeEnsurance
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of operating expense. + References No definition available. + Details
Name: | bch_OtherOperatingExpenseTotal
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition The amount of expenses that the entity does not separately disclose in the same statement or note when the entity uses the 'nature of expense' form for its analysis of expenses. [Refer: Expenses, by nature] + References No definition available. + Details
Name: | bch_OthersExpenses
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Provision for pending operations. + References No definition available. + Details
Name: | bch_ProvisionForPendingOperations
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Provisions for trials and litigation. + References No definition available. + Details
Name: | bch_ProvisionsForTrialsAndLitigation
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Renegotiated loan insurance premium. + References No definition available. + Details
Name: | bch_RenegotiatedLoanInsurancePremium
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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

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- Definition The amount of valuation expense. + References No definition available. + Details
Name: | bch_ValuationExpense
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Write-offs for operating risks. + References No definition available. + Details
Name: | bch_WriteoffsForOperatingRisks
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration