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Expected Credit Losses (Details) - Schedule of composition - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Schedule Of Composition Abstract
Expense of allowances established for credit risk	$ 418,416	$ 93,710	$ 520,307
Expense of provisions for contingent loans	51,445	(5,132)	73,210
Recovery of written-off credits	(65,740)	(70,407)	(41,759)
Impairments for credit risk from financial assets at fair value through other comprehensive income	8,009	1,001	(4,652)
Total	$ 412,130	$ 19,172	$ 547,106

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- Definition

A positive XBRL value should normally be entered for this element. A negative XBRL value may need to be entered if this element is used with the members referenced. [Refer: Accumulated depreciation and amortisation [member]; Accumulated depreciation, amortisation and impairment [member]; Accumulated impairment [member]; Aggregate adjustment to carrying amounts reported under previous GAAP [member]; Effect of asset ceiling [member]; Effect of transition to IFRSs [member]; Elimination of intersegment amounts [member]; Financial forecast of cash inflows (outflows) for cash-generating unit, measurement input [member]; Financial forecast of profit (loss) for cash-generating unit, measurement input [member]; Increase (decrease) due to changes in accounting policy [member]; Increase (decrease) due to changes in accounting policy and corrections of prior period errors [member]; Increase (decrease) due to changes in accounting policy required by IFRSs [member]; Increase (decrease) due to corrections of prior period errors [member]; Increase (decrease) due to departure from requirement of IFRS [member]; Increase (decrease) due to voluntary changes in accounting policy [member]; Material reconciling items [member]; Plan assets [member]; Present value of defined benefit obligation [member]; Redesignated amount [member]; Reinsurer's share of amount arising from insurance contracts [member]; Risk diversification effect [member]; Treasury shares [member]]

+ References

No definition available.

+ Details

Name:	bch_ExpectedCreditLossesTotal
Namespace Prefix:	bch_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

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- Definition

Amount of expense of provisions established for loan credit risk.

+ References

No definition available.

+ Details

Name:	bch_ExpenseOfProvisionsEstablishedForLoanCreditRisk
Namespace Prefix:	bch_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

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- Definition

Amount of expense of special provisions for credit risk.

+ References

No definition available.

+ Details

Name:	bch_ExpenseOfSpecialProvisionsForCreditRisk
Namespace Prefix:	bch_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

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- Definition

The amount of reversal of impairment loss recognised in other comprehensive income. [Refer: Reversal of impairment loss; Impairment loss recognised in other comprehensive income]

+ References

No definition available.

+ Details

Name:	bch_ImpairmentsForCreditRiskFromFinancialAssetsAtFairValueThroughOtherComprehensiveIncome
Namespace Prefix:	bch_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

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- References

No definition available.

+ Details

Name:	bch_ScheduleOfCompositionAbstract
Namespace Prefix:	bch_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

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- Definition

The gain on the recovery of loans and advances previously written off.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2022-03-24
-Paragraph 85
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_85&doctype=Standard
-URIDate 2022-03-24

+ Details

Name:	ifrs-full_GainOnRecoveryOfLoansAndAdvancesPreviouslyWrittenOff
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration