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Provisions for Contingent Loans Credit Risk - Schedule of Credit Risk for Contingent Loans (Details) - CLP ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
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Outstanding Exposure [Member] |  |
Schedule of Credit Risk for Contingent Loans [Line Items] |  |
Warranty by endorsement and sureties | $ 336,737 | $ 351,531
Confirmed foreign letters of credit | 160,856 | 83,392
Issued foreign letters of credit | 281,360 | 267,212
Performance guarantees | 3,124,626 | 2,640,297
Undrawn credit lines | 11,125,300 | 10,084,458
Other commitments | 51,889 | 120,545
Total | 15,080,768 | 13,547,435
Expected Credit Loss [Member] |  |
Schedule of Credit Risk for Contingent Loans [Line Items] |  |
Warranty by endorsement and sureties | 1,505 | 1,576
Confirmed foreign letters of credit | 92 | 43
Issued foreign letters of credit | 321 | 285
Performance guarantees | 16,923 | 20,565
Undrawn credit lines | 68,555 | 66,747
Other commitments | 89 | 424
Total | $ 87,485 | $ 89,640

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- Definition Amount of contingent liabilities related to confirmed foreign letters of credit. + References No definition available. + Details
Name: | bch_ConfirmedForeignLettersOfCredit
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Amount of contingent liabilities related to Issued foreign letters of credit. + References No definition available. + Details
Name: | bch_IssuedForeignLettersOfCredit
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Amount of contingent liabilities related to other commitments. + 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 The amount of contingent liabilities relating to performance guarantees. + References No definition available. + Details
Name: | bch_PerformanceGuarantees
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount of contingent liabilities related to undrawn credit lines. + References No definition available. + Details
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Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Warranty by endorsement and sureties. + 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 Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
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- Definition The amount of the estimated financial effect of contingent liabilities. [Refer: Classes of contingent liabilities [domain]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 37 -IssueDate 2024-01-01 -Paragraph 86 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=37&code=ifrs-tx-2024-en-r&anchor=para_86_a&doctype=Standard -URIDate 2024-03-27 + Details
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- Details
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Namespace Prefix: |
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- Details
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Namespace Prefix: |
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Period Type: |