Name:	bch_NotionalAmountHeldForHedging
Namespace Prefix:	bch_
Data Type:	xbrli:monetaryItemType
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The nominal or face amount of a financial instrument held for trading, used to calculate payments made on that instrument.

No definition available.

Name:	bch_NotionalAmountHeldForTrading
Namespace Prefix:	bch_
Data Type:	xbrli:monetaryItemType
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Period Type:	instant

The amount of financial assets classified as derivative instruments. [Refer: Financial assets; Derivatives [member]]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2018-01-01
-Paragraph 55
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_55&doctype=Standard
-URIDate 2018-03-16

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

The amount of derivative financial assets held for hedging. [Refer: Derivative financial assets]

Name:	ifrs-full_DerivativeFinancialAssetsHeldForHedging
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The amount of derivative financial assets held for trading. [Refer: Derivative financial assets; Financial assets at fair value through profit or loss, classified as held for trading]

Name:	ifrs-full_DerivativeFinancialAssetsHeldForTrading
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The amount of financial liabilities classified as derivative instruments. [Refer: Financial assets; Derivatives [member]]

Name:	ifrs-full_DerivativeFinancialLiabilities
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The amount of derivative financial liabilities held for hedging. [Refer: Derivative financial liabilities]

Name:	ifrs-full_DerivativeFinancialLiabilitiesHeldForHedging
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The amount of derivative financial liabilities held for trading. [Refer: Derivative financial liabilities; Financial liabilities at fair value through profit or loss that meet definition of held for trading]

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Data Type:	xbrli:monetaryItemType
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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.

No definition available.

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Data Type:	xbrli:stringItemType
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The nominal or face amount of a financial instrument, used to calculate payments made on that instrument.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2018-01-01
-Paragraph 112
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_112_c&doctype=Standard
-URIDate 2018-03-16

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