Name:	bch_AssumedMarketSharePercentageAtYearSixAndOnwards
Namespace Prefix:	bch_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Bank carries out a sensitivity analysis by setting discounts rates.

No definition available.

Name:	bch_BankSensitivityAnalysedDiscountsRatesOne
Namespace Prefix:	bch_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Bank carries out a sensitivity analysis by setting discounts rates.

No definition available.

Name:	bch_BankSensitivityAnalysedDiscountsRatesTwo
Namespace Prefix:	bch_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

The percentage of cost of equity (nominal terms) determined by bank which is set as a baseline scenario for discount rates used for valuation purposes.

No definition available.

Name:	bch_CostOfEquityNominalTermsPercentageSetAsBaselineScenarioForDiscountRates
Namespace Prefix:	bch_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

The percentage of cost of equity (real terms) determined by bank which is set as a baseline scenario for discount rates used for valuation purposes.

No definition available.

Name:	bch_CostOfEquityRealTermsPercentageSetAsBaselineScenarioForDiscountRates
Namespace Prefix:	bch_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Current loan expansion multiplier which is using as key assumptions for determining the value in use for impairment testing purposes.

No definition available.

Name:	bch_CurrentLoanExpansionMultiplier
Namespace Prefix:	bch_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

This discount rate (real terms) was computed by using Capital Asset Pricing Model ("CAPM") in order to determine the cost of equity or discount rate for shareholders' cash flows in fiscal year.

No definition available.

Name:	bch_DiscountRateRealTermsWasComputedByUsingCapitalAssetPricingModel
Namespace Prefix:	bch_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Earnings projections for a period using DCF model for goodwill impairment testing purposes.

No definition available.

Name:	bch_EarningsProjectionsPeriodForGoodwillImpairmentTesting
Namespace Prefix:	bch_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

The percentage of a perpetual cash flows growth rate within the long-run set (earnings projections beyond the ten-year period) in the baseline scenario, which is consistent with the growth rate expected for the economy in the long run.

No definition available.

Name:	bch_LongRunCashFlowsGrowthRateInBaselineScenario
Namespace Prefix:	bch_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

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.