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Income and Expenses from Fees and Commissions (Details) - Schedule of income and expenses for fees and commissions $ in Thousands, $ in Millions | 12 Months Ended
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Dec. 31, 2021 CLP ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 CLP ($) | Dec. 31, 2019 CLP ($)
Income from fees and commissions |  |  |  |
Debit and credit card services | $ 183,292 |  | $ 156,786 | $ 185,878
Investments in mutual funds and others | 108,348 |  | 92,514 | 101,046
Collections and payments | 74,273 |  | 64,475 | 56,389
Portfolio management | 50,793 |  | 50,272 | 47,816
Fees for insurance transactions | 38,057 |  | 33,049 | 37,035
Use of distribution channel and access to customers | 30,518 |  | 75,074 | 65,243
Guarantees and letter of credit | 30,131 |  | 27,824 | 26,101
Trading and securities management | 23,334 |  | 21,226 | 21,878
Brand use agreement | 22,616 |  | 19,835 | 16,494
Financial advisory services | 4,948 |  | 4,487 | 4,393
Lines of credit and overdrafts | 4,396 |  | 4,568 | 4,716
Other fees earned | 13,615 |  | 12,036 | 22,183
Total income from fees and commissions | 584,321 | $ 685,316 | 562,146 | 589,172
Expenses from fees and commissions |  |  |  |
Credit card transactions | (87,256) |  | (79,893) | (97,823)
Interbank transactions | (31,368) |  | (24,843) | (20,133)
Securities transactions | (4,759) |  | (4,411) | (5,943)
Collections and payments | (4,211) |  | (4,927) | (6,284)
Sales force | (229) |  | (244) | (404)
Other fees | (1,470) |  | (1,860) | (1,283)
Total expenses from fees and commissions | $ (129,293) | $ (151,640) | $ (116,178) | $ (131,870)

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- Definition Brand use agreement. + References No definition available. + Details
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Balance Type: | credit
Period Type: | duration

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- Definition The amount of expense recognised for credit card transactions fee and commission. + References No definition available. + Details
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Balance Type: | debit
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X
- Definition The amount of income recognised from collections and payments fee and commission. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
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- References No definition available. + Details
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Balance Type: | na
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- References No definition available. + Details
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Balance Type: | debit
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- Definition The amount of income recognised from financial advisory services fee and commission. + References No definition available. + Details
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- Definition The amount of income recognised from guarantees and letter of credit fee and commission. + References No definition available. + Details
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- References No definition available. + Details
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- Definition The amount of expense recognised for interbank transactions fee and commission. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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- Definition The amount of income recognised from investments in mutual funds and other fee and commission. + References No definition available. + Details
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- Definition The amount of income recognised from lines of credit and overdrafts fee and commission. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
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- References No definition available. + Details
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- Definition The amount of expense recognised for securities transactions fee and commission. + References No definition available. + Details
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- Definition The amount of income recognised from trading and securities management fee and commission. + References No definition available. + Details
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- Definition Use of distribution channel and access to customers. + References No definition available. + Details
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Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of income recognised for brokerage fees charged by the entity. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_112_c&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The amount of income recognised from credit-related fees and commissions. [Refer: Fee and commission income] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_112_c&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The amount of expense relating to fees and commissions. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 85 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_85&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The amount of income relating to fees and commissions. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 85 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_85&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The amount of fee and commission expense that the entity does not separately disclose in the same statement or note. [Refer: Fee and commission expense] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_112_c&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The amount of fee and commission income that the entity does not separately disclose in the same statement or note. [Refer: Fee and commission income] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_112_c&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The amount of income recognised from portfolio and other management fees. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_112_c&doctype=Standard -URIDate 2021-03-24 + Details
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