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Saving Accounts and Time Deposits (Details) $ in Thousands, $ in Millions | Dec. 31, 2017 USD ($) | Dec. 31, 2017 CLP ($) | Dec. 31, 2016 CLP ($)
--- | --- | --- | ---
Saving Accounts and Time Deposits |  |  |
Time deposits |  | $ 9,743,968 | $ 10,277,292
Term savings accounts |  | 214,120 | 208,435
Other term balances payable |  | 109,690 | 67,174
Total | $ 16,358,933 | $ 10,067,778 | $ 10,552,901

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- Definition The amount of balances in customers' other term deposits held by the entity. + References No definition available. + Details
Name: | bch_BalancesOnOtherTermDepositsFromCustomers
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition The amount of balances in customers' time deposits held by the entity. + References No definition available. + Details
Name: | bch_BalancesOnTimeDepositsFromCustomers
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Deposits from customer that are saving accounts and time deposits. + References No definition available. + Details
Name: | bch_SavingAccountsAndTimeDeposits
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition The amount of balances in customers' term deposits held by the entity. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_112_c&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_BalancesOnTermDepositsFromCustomers
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- References No definition available. + Details
Name: | ifrs-full_DepositsFromCustomersAbstract
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration