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v3.22.1

Risk Management (Details) - Schedule of use of cross currency funding $ in Millions | Dec. 31, 2021 USD ($)
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Maximum [member] |
Risk Management (Details) - Schedule of use of cross currency funding [Line Items] |
Cross Currency Funding | $ 3,637
Minimum [member] |
Risk Management (Details) - Schedule of use of cross currency funding [Line Items] |
Cross Currency Funding | 1,446
Average [member] |
Risk Management (Details) - Schedule of use of cross currency funding [Line Items] |
Cross Currency Funding | $ 2,582

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- Definition Cross currency funding. + References No definition available. + Details
Name: | bch_CrossCurrencyFunding
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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Namespace Prefix: | bch_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | ifrs-full_RangeAxis=ifrs-full_TopOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_BottomOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_WeightedAverageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |