TAX SITUATION - Additional Information (Details)
S/ in Millions, $ in Millions |
12 Months Ended |
|
Dec. 31, 2019
USD ($)
|
Dec. 31, 2019
PEN (S/)
|
Dec. 31, 2018
PEN (S/)
|
Dec. 31, 2017
PEN (S/)
|
| Disclosure of tax situation [Line Items] |
|
|
|
|
| Applicable Tax Rate |
29.50%
|
29.50%
|
29.50%
|
29.50%
|
| Percentage of workers profit sharing |
5.00%
|
5.00%
|
|
|
| Average effective tax rate |
27.14%
|
27.14%
|
27.20%
|
24.99%
|
| Income tax relating to components of other comprehensive income that will be reclassified to profit or loss | S/ |
|
S/ 26.6
|
S/ 5.3
|
S/ 32.1
|
| Partially integrated system [Member] |
|
|
|
|
| Disclosure of tax situation [Line Items] |
|
|
|
|
| Applicable Tax Rate |
27.00%
|
27.00%
|
27.00%
|
|
| Peru [Member] |
|
|
|
|
| Disclosure of tax situation [Line Items] |
|
|
|
|
| Applicable Tax Rate |
29.50%
|
29.50%
|
29.50%
|
|
| Bolivia [Member] |
|
|
|
|
| Disclosure of tax situation [Line Items] |
|
|
|
|
| Applicable Tax Rate |
25.00%
|
25.00%
|
25.00%
|
|
| Change in percentage of ROE |
6.00%
|
6.00%
|
|
|
| Tax rate effect from change in tax rate |
(25.00%)
|
(25.00%)
|
|
|
| Average effective tax rate |
50.00%
|
50.00%
|
|
|
| Chile [Member] | Top of range [member] |
|
|
|
|
| Disclosure of tax situation [Line Items] |
|
|
|
|
| Tax rate effect from change in tax rate |
4.00%
|
4.00%
|
|
|
| Chile [Member] | Bottom of range [member] |
|
|
|
|
| Disclosure of tax situation [Line Items] |
|
|
|
|
| Tax rate effect from change in tax rate |
35.00%
|
35.00%
|
|
|
| Colombia [Member] |
|
|
|
|
| Disclosure of tax situation [Line Items] |
|
|
|
|
| Applicable Tax Rate |
33.00%
|
33.00%
|
33.00%
|
|
| Surcharge Rate |
|
|
4.00%
|
|
| Income tax relating to components of other comprehensive income that will be reclassified to profit or loss | $ |
$ 800.0
|
|
|
|