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Other Operating Expenses (Details) - Schedule of other operating expenses - CLP ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Provisions and expenses for assets received in lieu of payment |  |  |
Provisions for assets received in lieu of payment | $ 1,539 | $ 3,246 | $ 3,930
Expenses to maintain assets received in lieu of payment | 1,021 | 1,225 | 1,749
Subtotal | 2,560 | 4,471 | 5,679
Provisions for contingencies |  |  |
Country risk provisions |  |  |
Other provisions | 7 | 33 | 3
Subtotal | 7 | 33 | 3
Other expenses |  |  |
Write-offs for operating risks | 10,625 | 5,586 | 11,378
Leasings operational expenses | 5,430 | 5,111 | 4,504
Card administration | 2,599 | 2,490 | 2,640
Correspondent banks | 1,804 | 1,569 | 882
Expenses for charge-off leased assets recoveries | 597 | 1,072 | 2,287
Others | 3,055 | 3,518 | 2,213
Subtotal | 24,110 | 19,346 | 23,904
Total | $ 26,677 | $ 23,850 | $ 29,586

X
- Definition The amount of expense arising from card administration. + References No definition available. + Details
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Balance Type: | debit
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X
- Definition Amount of correspondent banks. + References No definition available. + Details
Name: | bch_CorrespondentBanks
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Country risk provisions. + References No definition available. + Details
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Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Expenses for leased assets recoveries. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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X
- Definition Amount of expenses to maintain assets received in lieu of payment. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
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X
- Definition Leasings operational expenses. + References No definition available. + Details
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Balance Type: | debit
Period Type: | duration

X
- Definition Amount of other expenses subtotal. + References No definition available. + Details
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Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of other operating expenses classified as other. + References No definition available. + Details
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Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of other provisions. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Amount of provisions and expenses for assets received in lieu of payment subtotal. + References No definition available. + Details
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- Definition Provisions for assets received in lieu of payment. + 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 Provisions for contingencies subtotal amount. + References No definition available. + Details
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- Definition The amount of expense arising from write-offs for operating risks. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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X
- Definition The amount of miscellaneous other operating expenses. [Refer: Other operating income (expense)] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_112_c&doctype=Standard -URIDate 2020-01-01 + Details
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- References No definition available. + Details
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