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EQUITY - Treasury shares (Details) | Dec. 31, 2020 PEN (S/) shares | Dec. 31, 2019 PEN (S/) shares | Dec. 31, 2018 PEN (S/) shares
--- | --- | --- | ---
Disclosure of equity [Line Items] |  |  |
IFRS Treasury Shares | 14,620,846 | 14,625,233 | 14,622,726
Number of share options outstanding in share-based payment arrangement | S/ | 293,888 | 246,931 | 260,548
Number of shares outstanding | 14,914,734 | 14,872,164 | 14,883,274
Atlantic security holding corporation treasury shares [Member] |  |  |
Disclosure of equity [Line Items] |  |  |
IFRS Treasury Shares | 14,620,846 | 14,620,846 | 14,620,846
Number of shares outstanding | 14,620,846 | 14,620,846 | 14,620,846
BCP |  |  |
Disclosure of equity [Line Items] |  |  |
Number of share options outstanding in share-based payment arrangement | S/ | 159,339 | 134,169 | 162,286
Number of shares outstanding | 159,339 | 134,169 | 162,286
Grupo Credito |  |  |
Disclosure of equity [Line Items] |  |  |
Number of share options outstanding in share-based payment arrangement | S/ | 32,512 |  |
Number of shares outstanding | 32,512 |  |
Pacfico Seguros |  |  |
Disclosure of equity [Line Items] |  |  |
Number of share options outstanding in share-based payment arrangement | S/ | 29,845 | 29,539 | 33,794
Number of shares outstanding | 29,845 | 29,539 | 33,794
Credicorp Capital Servicios Financieros |  |  |
Disclosure of equity [Line Items] |  |  |
Number of share options outstanding in share-based payment arrangement | S/ | 17,598 | 13,830 | 8,546
Number of shares outstanding | 17,598 | 13,830 | 8,546
Mibanco |  |  |
Disclosure of equity [Line Items] |  |  |
Number of share options outstanding in share-based payment arrangement | S/ | 14,872 | 9,060 | 9,934
Number of shares outstanding | 14,872 | 9,060 | 9,934
Atlantic Security Bank |  |  |
Disclosure of equity [Line Items] |  |  |
Number of share options outstanding in share-based payment arrangement | S/ | 11,434 |  |
Number of shares outstanding | 11,434 |  |
Credicorp Peru |  |  |
Disclosure of equity [Line Items] |  |  |
Number of share options outstanding in share-based payment arrangement | S/ |  | 21,695 | 13,113
Number of shares outstanding |  | 21,695 | 13,113
Credicorp Capital limited |  |  |
Disclosure of equity [Line Items] |  |  |
Number of share options outstanding in share-based payment arrangement | S/ |  | 9,518 |
Number of shares outstanding |  | 9,518 |
Prima AFP |  |  |
Disclosure of equity [Line Items] |  |  |
Number of share options outstanding in share-based payment arrangement | S/ | 7,664 | 6,397 | 6,979
Number of shares outstanding | 7,664 | 6,397 | 6,979
Other treasuy shares [Member] |  |  |
Disclosure of equity [Line Items] |  |  |
IFRS Treasury Shares |  | 4,387 | 1,880
Number of share options outstanding in share-based payment arrangement | S/ | 20,624 | 22,723 | 25,896
Number of shares outstanding | 20,624 | 27,110 | 27,776

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