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Other Operating Income and Expenses - Schedule of Bank and its Subsidiaries Present Other Operating Expenses (Details) - CLP ($) $ in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Schedule of Bank and its Subsidiaries Present Other Operating Expenses [Abstract] |  |  |
Write-offs for operating risks | $ 29,407 | $ 30,473 | $ 18,391
Expenses for credit operations of financial leasing | 6,976 | 4,071 | 4,786
Insurance premiums expense to cover operational risk events | 6,275 | 5,779 | 5,085
Legal expenses and trials | 2,847 | 3,063 | 1,973
Card administration | 2,209 | 606 | 2,086
(Release) expense of provisions for operational risk | 558 | (706) | (900)
Provisions for trials and litigation | 419 | (617) | 1,317
Write-offs for commercial decisions | 407 | 290 | 398
Life insurance | 343 | 275 | 258
Valuation expense | 256 | 250 | 226
Renegotiated loan insurance premium | 235 | 290 | 351
Expenses for charge-off leased assets recoveries | 195 | 493 | 130
Provision for pending operations (90 days) | (124) | (117) | (429)
Expense recovery from operational risk events | (14,314) | (9,216) | (6,050)
Other expenses | 350 | 1,156 | 1,842
Total | $ 36,039 | $ 36,090 | $ 29,464

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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 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

X
- 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 Insurance premiums expense to cover operational risk events. + References No definition available. + Details
Name: | bch_InsurancePremiumsExpenseToCoverOperationalRiskEvents
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

X
- 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 Provision for pending operations (90 days). + References No definition available. + Details
Name: | bch_ProvisionForPendingOperations90DaysPeriod
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

X
- 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 commercial decisions. + References No definition available. + Details
Name: | bch_WriteoffsForCommercialDecisions
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