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v3.20.1

Interest Revenue and Expenses (Details Textual) - CLP ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018
Interest Revenue and Expenses (Textual) |  |
Interest received basis for impaired portfolio | $ 4,415 | $ 5,113

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- Definition The amount of interest received basis for impaired portfolio. + References No definition available. + Details
Name: | bch_InterestReceivedBasisForImpairedPortfolio
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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