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INSURANCE AND REINSURANCE RESULT, CSMs for Insurance Contracts Portfolios (Details) - PEN (S/)
S/ in Thousands
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Impact of transition approaches adopted to establishing CSMs for insurance contracts portfolios [Abstract]      
Balances at the beginning of the period S/ 9,567,014 S/ 8,595,335  
Changes in estimates adjusting the CSM (5,689) (7,095)  
Changes related to future service 15,575 1,444  
CSM recognized in consolidated statement of income for services rendered 125,610 128,639  
Changes related to the current service 684,033 720,026  
Other changes 56,013 (125,495)  
Balances at the end of the period 10,575,804 9,567,014 S/ 8,595,335
Contractual Service Margin [Member]      
Impact of transition approaches adopted to establishing CSMs for insurance contracts portfolios [Abstract]      
Balances at the beginning of the period 887,586 992,526 1,292,358
Changes in estimates adjusting the CSM (33,955) (11,445) (182,240)
Changes related to future service (33,955) (11,445) (182,240)
CSM recognized in consolidated statement of income for services rendered (91,995) (102,878) (117,518)
Interest expense on insurance contracts issued (interest on CSM) 23,975 28,279 38,896
Changes related to the current service (68,020) (74,599) (78,622)
Other changes 9,324 (18,896) (38,970)
Balances at the end of the period S/ 794,935 S/ 887,586 S/ 992,526