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v3.21.1

Risk Management (Details) - Schedule of use of VaR $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 CLP ($)
MCh$ |
Maximum Value-at-Risk | $ 3,697
Minimum Value-at-Risk | 215
Average Value-at-Risk | $ 1,319

X
- References No definition available. + Details
Name: | bch_AverageValueatRiskinShares
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | bch_MaximumValueatRisk
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | bch_MchAbstract0
Namespace Prefix: | bch_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | bch_MinimumValueatRisk
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration