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Other Operating Income and Expenses - Schedule of Bank and its Subsidiaries Present Other Operating Income (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 Income [Abstract] |  |  |
Expense recovery | $ 26,179 | $ 26,310 | $ 1,986
Revaluation of prepaid monthly payments | 9,771 | 9,146 | 17,044
Revaluation of tax refunds from previous years | 8,451 | 6,905 | 204
Income from investment properties | 7,147 | 6,793 | 6,765
Foreign trade income | 102 | 98 | 75
Release of provisions not related to credit risk |  | 23,355 |
Other income | 127 | 332 | 334
Total | $ 51,777 | $ 72,939 | $ 26,408

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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 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 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

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- Definition The amount of release of provision not related t credit risk. + References No definition available. + Details
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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
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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
Balance Type: | na
Period Type: | duration

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- Definition The amount of operating income (expense) that the entity does not separately disclose in the same statement or note. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 85 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_85&doctype=Standard -URIDate 2024-03-27 + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration