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Contingencies and Commitments - Guarantees Granted - Banchile Corredores de Seguros Ltda (Details) - CLF [Member] in Millions	12 Months Ended
	Dec. 31, 2019 CLF ( )
Disclosure of contingent liabilities [line items]
Responsibility for errors and omissions policy	60,000
Civil responsibility policy	500

X

- Definition

Civil responsibility policy.

+ References

No definition available.

+ Details

Name:	bch_CivilResponsibilityPolicy
Namespace Prefix:	bch_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Responsibility for errors and omissions policy.

+ References

No definition available.

+ Details

Name:	bch_ResponsibilityForErrorsAndOmissionsPolicy
Namespace Prefix:	bch_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

+ References

No definition available.

+ Details

Name:	ifrs-full_DisclosureOfContingentLiabilitiesLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	bch_CurrencyOfAxis=bch_ClevelandMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: