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DEPOSITS AND OBLIGATIONS - Additional information (Details) - Fondo de Seguro de Depositos [Member] - PEN (S/) S/ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
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Disclosure of Deposits and Obligations [Line Items] |  |
Balance Of Deposits And Obligations | S/ 35,511,900 | S/ 33,571,800
Maximum Coverage Recognized | S/ 100,661 | S/ 100,864

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- Definition The balance amount of deposits and obligations. + References No definition available. + Details
Name: | bap_BalanceOfDepositsAndObligations
Namespace Prefix: | bap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

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- Definition The amount of maximum coverage recognized. + References No definition available. + Details
Name: | bap_MaximumCoverageRecognized
Namespace Prefix: | bap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Details
Name: | bap_IfrsInsuranceTypeAndTierIdentifierAxis=bap_FondoDeSeguroDeDepositosMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |