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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, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Schedule Of Bank And Its Subsidiaries Present Other Operating Income Abstract |  |  |
Revaluation of prepaid monthly payments | $ 17,044 | $ 5,183 | $ 1,569
Income from investment properties | 6,765 | 6,069 | 5,808
Income from correspondent banks | 3,116 | 2,800 | 2,841
Expense recovery | 1,979 | 1,333 | 6,456
Fiduciary and trustee commissions | 135 | 261 | 316
Tax management income | 116 | 3,117 | 1,565
Foreign trade income | 75 | 55 | 73
Expense recovery income | 48 | 70 | 53
Others income | 381 | 2,175 | 1,607
Total | $ 29,659 | $ 21,063 | $ 20,288

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

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

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

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

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

X
- Definition Tax management income. + References No definition available. + Details
Name: | bch_TaxManagementIncome
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of tax expense (income) relating to changes in deferred tax liabilities and deferred tax assets. [Refer: Deferred tax assets; Deferred tax liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2022-03-24 -Paragraph 81 -Subparagraph g -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=12&code=ifrs-tx-2022-en-r&anchor=para_81_g_ii&doctype=Standard -URIDate 2022-03-24 + Details
Name: | ifrs-full_DeferredTaxExpenseIncome
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration