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Financial Liabilities at Amortized Cost - Schedule of Composition of Debt Financial Instruments Issued (Details) - CLP ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Letters of credit |  |
Letters of credit for housing | $ 849 | $ 1,433
Letters of credit for general purposes | 1 | 11
Bonds |  |
Current Bonds | 9,689,219 | 9,358,621
Mortgage bonds |  |
Total | $ 9,690,069 | $ 9,360,065

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

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- Definition Current bonds + References No definition available. + Details
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Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Letters of credit for housing + References No definition available. + Details
Name: | bch_LettersCreditForHousing
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- References No definition available. + Details
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- Definition Amount of letters of credit for general purposes. + References No definition available. + Details
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Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Amount of mortgage bonds. + References No definition available. + Details
Name: | bch_MortgageBonds
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition The amount of instruments issued by the entity that represent indebtedness. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 55 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_55&doctype=Standard -URIDate 2024-03-27 + Details
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