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LOANS, NET (Details Textual) - PEN (S/) S/ in Millions | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
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Disclosure of Loans, Net [Line Items] |  |  |
Allowance For Direct Loans | S/ 4,500.5 | S/ 4,207.1 | S/ 3,840.3
Allowance For Indirect Loans | S/ 442.5 | S/ 209.6 | S/ 191.9

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- Definition The amount of allowance for direct loans. + References No definition available. + Details
Name: | bap_AllowanceForDirectLoans
Namespace Prefix: | bap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition The amount of allowance for indirect loans. + References No definition available. + Details
Name: | bap_AllowanceForIndirectLoans
Namespace Prefix: | bap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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