LOANS, NET - Additional Information (Details) - PEN (S/)
S/ in Millions
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
LOANS, NET      
Allowance For Direct Loans S/ 5,124.0 S/ 4,952.4 S/ 4,500.5
Allowance For Indirect Loans S/ 383.8 S/ 362.1 S/ 442.5