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Loans and Advances to Banks, net (Tables) | 12 Months Ended
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Dec. 31, 2021
Disclosure of loans and advances to banks [text block] [Abstract] |
Schedule of loans and advance to banks, net |
|  | 2020 |  |  | 2021 |
|  | MCh$ |  |  | MCh$ |
Domestic Banks |  |  |  |  |  |
Interbank loans |  |  | 260,002 |  |  |  | 160,018 |
Other credits with domestic banks |  |  | — |  |  |  | — |
Provisions for loans to domestic banks |  |  | (214 | ) |  |  | (31 | )
Subtotal |  |  | 259,788 |  |  |  | 159,987 |
Foreign Banks |  |  |  |  |  |  |  |
Loans to foreign banks |  |  | 185,858 |  |  |  | 158,308 |
Credits with third countries |  |  | 167 |  |  |  | 498 |
Chilean export trade banks |  |  | 113,596 |  |  |  | 121,008 |
Provisions for loans to foreign banks |  |  | (244 | ) |  |  | (50 | )
Subtotal |  |  | 299,377 |  |  |  | 279,764 |
Central Bank of Chile |  |  |  |  |  |  |  |
Central Bank deposits |  |  | 2,380,033 |  |  |  | 1,090,000 |
Other Central Bank credits |  |  | — |  |  |  | — |
Subtotal |  |  | 2,380,033 |  |  |  | 1,090,000 |
Total |  |  | 2,939,198 |  |  |  | 1,529,751 |
Schedule of impairment allowance for due from banks |
|  | 2020 |  |  | 2021 |
|  | Stage 1 Individual |  |  | Stage 2 Individual |  |  | Stage 3 Individual |  |  | Total |  |  | Stage 1 Individual |  |  | Stage 2 Individual |  |  | Stage 3 Individual |  |  | Total |
|  | MCh$ |  |  | MCh$ |  |  | MCh$ |  |  | MCh$ |  |  | MCh$ |  |  | MCh$ |  |  | MCh$ |  |  | MCh$ |
Domestic Banks |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Normal |  |  | 260,002 |  |  |  | — |  |  |  | — |  |  |  | 260,002 |  |  |  | 160,018 |  |  |  | — |  |  |  | — |  |  |  | 160,018 |
Substandard |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Non-complying |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Subtotal |  |  | 260,002 |  |  |  | — |  |  |  | — |  |  |  | 260,002 |  |  |  | 160,018 |  |  |  | — |  |  |  | — |  |  |  | 160,018 |
Foreign Banks |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Normal |  |  | 299,621 |  |  |  | — |  |  |  | — |  |  |  | 299,621 |  |  |  | 279,814 |  |  |  | — |  |  |  | — |  |  |  | 279,814 |
Substandard |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Non-complying |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Subtotal |  |  | 299,621 |  |  |  | — |  |  |  | — |  |  |  | 299,621 |  |  |  | 279,814 |  |  |  | — |  |  |  | — |  |  |  | 279,814 |
Central Bank of Chile |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Normal |  |  | 2,380,033 |  |  |  | — |  |  |  | — |  |  |  | 2,380,033 |  |  |  | 1,090,000 |  |  |  | — |  |  |  | — |  |  |  | 1,090,000 |
Substandard |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Non-complying |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Subtotal |  |  | 2,380,033 |  |  |  | — |  |  |  | — |  |  |  | 2,380,033 |  |  |  | 1,090,000 |  |  |  | — |  |  |  | — |  |  |  | 1,090,000 |
Total |  |  | 2,939,656 |  |  |  | — |  |  |  | — |  |  |  | 2,939,656 |  |  |  | 1,529,832 |  |  |  | — |  |  |  | — |  |  |  | 1,529,832 |
Schedule of changes in gross carrying amount and corresponding allowance for ECL by stage |
|  | Changes as of December 31, 2020 |
|  | Stage 1 Individual |  |  | Stage 2 Individual |  |  | Stage 3 Individual |  |  | Total |
|  | Gross carrying amount MCh$ |  |  | ECL MCh$ |  |  | Gross carrying amount MCh$ |  |  | ECL MCh$ |  |  | Gross carrying amount MCh$ |  |  | ECL MCh$ |  |  | Gross carrying amount MCh$ |  |  | ECL MCh$ |
ECL allowances as of January 1, 2020 |  |  | 1,018,551 |  |  |  | 84 |  |  |  | 121,640 |  |  |  | 26 |  |  |  | — |  |  |  | — |  |  |  | 1,140,191 |  |  |  | 110 |
Net change on Balance * |  |  | 1,845,572 |  |  |  | (84 | ) |  |  | (45,547 | ) |  |  | (26 | ) |  |  | — |  |  |  | — |  |  |  | 1,800,025 |  |  |  | (110 | )
Transfer to Stage 1 |  |  | 86,986 |  |  |  | — |  |  |  | (86,986 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Transfer to Stage 2 |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Transfer to Stage 3 |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Impact on year-end ECL of exposures transferred between stages during the year ** |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Refinements to models used for calculation |  |  | — |  |  |  | 458 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 458 |
Amounts written off |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Foreign exchange adjustments |  |  | (11,453 | ) |  |  | — |  |  |  | 10,893 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (560 | ) |  |  | — |
Total |  |  | 2,939,656 |  |  |  | 458 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 2,939,656 |  |  |  | 458 |
|  | Changes as of December 31, 2021 |
|  | Stage 1 Individual |  |  | Stage 2 Individual |  |  | Stage 3 Individual |  |  | Total |
|  | Gross carrying amount MCh$ |  |  | ECL MCh$ |  |  | Gross carrying amount MCh$ |  |  | ECL MCh$ |  |  | Gross carrying amount MCh$ |  |  | ECL MCh$ |  |  | Gross carrying amount MCh$ |  |  | ECL MCh$ |
ECL allowances as of January 1, 2021 |  |  | 2,939,656 |  |  |  | 458 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 2,939,656 |  |  |  | 458 |
Net change on Balance * |  |  | (1,446,442 | ) |  |  | (389 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (1,446,442 | ) |  |  | (389 | )
Transfer to Stage 1 |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Transfer to Stage 2 |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Transfer to Stage 3 |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Impact on year-end ECL of exposures transferred between stages during the year ** |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Refinements to models used for calculation |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Amounts written off |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Foreign exchange adjustments |  |  | 36,618 |  |  |  | 12 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 36,618 |  |  |  | 12 |
Total |  |  | 1,529,832 |  |  |  | 81 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 1,529,832 |  |  |  | 81 |

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