XML 248 R231.htm IDEA: XBRL DOCUMENT
v3.21.1

Risk Management (Details) - Schedule of amortized costs and net loss of modified financial assets $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 USD ($)
MCh$ |
Amortized costs of financial assets modified during the period | $ 212,655
Net modification loss | $ 109,743

X
- Definition The amount of amortised costs of financial assets modified during the period. + References No definition available. + Details
Name: | bch_AmortisedCostsOfFinancialAssetsModified
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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

X
- Definition The amount of net modification loss. + References No definition available. + Details
Name: | bch_NetModificationLoss
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration