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Other Financial Obligations (Details) - Schedule of other financial obligations - CLP ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020
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Schedule of other financial obligations [Abstract] |  |
Other Chilean obligations | $ 274,395 | $ 191,258
Public sector obligations | 223 | 455
Total | $ 274,618 | $ 191,713

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- Definition Other domestic obligations that the entity does not separately disclose in the same statement or note. + References No definition available. + Details
Name: | bch_OtherDomesticObligations
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition The amount of public sector obligations. + References No definition available. + Details
Name: | bch_PublicSectorFinancialLiabilities
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

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- Definition The amount of financial liabilities that the entity does not separately disclose in the same statement or note. + References No definition available. + Details
Name: | bch_TotalLiabilities
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant