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Financial Liabilities at Amortized Cost (Details) - Schedule of composition of debt financial instruments issued - CLP ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Letters of credit |  |
Letters of credit for housing | $ 2,328 | $ 4,005
Letters of credit for general purposes | 49 | 109
Bonds |  |
Current Bonds | 9,265,570 | 8,557,281
Mortgage bonds |  |
Total | $ 9,267,947 | $ 8,561,395

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

X
- Definition Amount of current Bonds. + References No definition available. + Details
Name: | bch_CurrentBonds
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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

X
- Definition Amount of letters of credit for general purposes. + References No definition available. + Details
Name: | bch_LettersOfCreditForGeneralPurposes
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of letters of credit for housing. + References No definition available. + Details
Name: | bch_LettersOfCreditForHousing
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of mortgage bonds. + References No definition available. + Details
Name: | bch_MortgageBonds
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount, after allowance for credit loss, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), investment in debt security measured at amortized cost (held-to-maturity), and investment in debt security measured at fair value with change in fair value recognized in net income (trading). + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant