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Personnel Expenses (Details) - Schedule of personnel expenses - CLP ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Schedule of personnel expenses [Abstract] |  |  |
Remuneration | $ 258,918 | $ 254,886 | $ 244,919
Bonuses and incentives | 61,526 | 71,028 | 62,675
Variable Compensation | 34,151 | 37,281 | 36,901
Gratifications | 28,167 | 27,889 | 26,275
Lunch and health benefits | 27,388 | 27,618 | 26,698
Staff severance indemnities | 22,994 | 35,100 | 19,941
Training expenses | 1,832 | 3,626 | 3,909
Other personnel expenses | 22,200 | 18,171 | 19,312
Total | $ 457,176 | $ 475,599 | $ 440,630

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- Definition The amount of personnel gratifications. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition The amount of personnel lunch and health benefits. + References No definition available. + Details
Name: | bch_LunchAndHealthBenefits
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Personnel Expenses. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- References No definition available. + Details
Name: | bch_ScheduleOfPersonnelExpensesAbstract
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Balance Type: | na
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- Definition The amount of personnel training expenses. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition The amount of personnel variable compensation. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition The amount of employee expenses that the entity does not separately disclose in the same statement or note. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2020-01-01 -Paragraph 5 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2020-en-r&anchor=para_5&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The amount of expense from employee benefits (other than termination benefits), which are expected to be settled wholly within twelve months after the end of the annual reporting period in which the employees render the related services, that the entity does not separately disclose in the same statement or note. [Refer: Employee benefits expense] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2020-01-01 -Paragraph 9 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2020-en-r&anchor=para_9&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The amount of post-employment benefit expense relating to defined benefit plans. [Refer: Defined benefit plans [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2020-01-01 -Paragraph 5 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2020-en-r&anchor=para_5&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition A class of employee benefits expense that represents wages and salaries. [Refer: Employee benefits expense] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2020-01-01 -Paragraph 9 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2020-en-r&anchor=para_9&doctype=Standard -URIDate 2020-01-01 + Details
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