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Financial Instruments at Amortized Cost | 12 Months Ended
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Dec. 31, 2021
Financial Instruments At Amortised Cost [Abstract] |
Financial Instruments at Amortized Cost |
| 13. | Financial Instruments at Amortized Cost:
As of December 31, 2020 and 2021, financial assets at amortized cost are detailed as follows:
|  | 2020 |  |  | 2021 |
|  | MCh$ |  |  | MCh$ |
Instruments issued by the Chilean Government and Central Bank of Chile |  |  |  |  |  |
Bonds issued by the Central Bank of Chile |  |  | — |  |  |  | — |
Promissory notes issued by the Central Bank of Chile |  |  | — |  |  |  | — |
Other instruments of the Chilean Government and the Central Bank of Chile |  |  | — |  |  |  | 839,744 |
Other instruments issued in Chile |  |  |  |  |  |  |  |
Deposit promissory notes from domestics banks |  |  | — |  |  |  | — |
Mortgage bonds from domestic banks |  |  | — |  |  |  | — |
Bonds from domestic banks |  |  | — |  |  |  | — |
Deposits from domestic banks |  |  | — |  |  |  | — |
Bonds from other Chilean companies |  |  | — |  |  |  | — |
Promissory notes issued by other Chilean companies |  |  | — |  |  |  | — |
Other instruments issued in Chile |  |  | — |  |  |  | — |
Instruments issued Abroad |  |  |  |  |  |  |  |
Instruments from foreign governments or Central Banks |  |  | — |  |  |  | — |
Other instruments |  |  | — |  |  |  | — |
Total |  |  | — |  |  |  | 839,744 |
| (a.1) | The credit ratings of the issuers of instruments assets at amortized cost as of December 31, 2021, are as follows:
|  | As of December 31, 2020 |  |  | As of December 31, 2021 |
|  | Stage 1 Individual |  |  | Stage 2 Individual |  |  | Stage 3 Individual |  |  | Total Individual |  |  | Stage 1 Individual |  |  | Stage 2 Individual |  |  | Stage 3 Individual |  |  | Total Individual |
|  | MCh$ |  |  | MCh$ |  |  | MCh$ |  |  | MCh$ |  |  | MCh$ |  |  | MCh$ |  |  | MCh$ |  |  | MCh$ |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investment grade |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 839,744 |  |  |  | — |  |  |  | — |  |  |  | 839,744 |
Non-investment grade |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Without rating |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Total |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 839,744 |  |  |  | — |  |  |  | — |  |  |  | 839,744 |
| (a.2) | Analysis of changes in gross carrying amount and corresponding allowance for ECL by stage for financial instruments measured at amortized cost as of December 31, 2021, is as follows:
|  | Stage 1 Individual |  |  | Stage 2 Individual |  |  | Stage 3 Individual |  |  | Total |
|  | Fair value MCh$ |  |  | ECL MCh$ |  |  | Fair value MCh$ |  |  | ECL MCh$ |  |  | Fair value MCh$ |  |  | ECL MCh$ |  |  | Fair value MCh$ |  |  | ECL MCh$ |
Balance as of January 1, 2021 |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Net change on Balance * |  |  | 839,744 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 839,744 |  |  |  | — |
Change in fair value |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
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 ** |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Impact of net re-measurement of year-end ECL |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Amounts written off |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Foreign exchange adjustments |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Balance as of December 31, 2021 |  |  | 839,744 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 839,744 |  |  |  | — |
| * | Net change between assets purchased and assets derecognized excluding write offs.
| ** | Represents the change in the year-end ECLs of exposures that were transferred from one stage to another during the year.

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