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Significant accounting policies - Internal credit risk grades (Details) | Dec. 31, 2021
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IFRS Statement [Line Items] |
Discount rate for present value of the cash flows | 10.00%
Stage 1 | Aaa – Ba1 | 1 - 4 |
IFRS Statement [Line Items] |
Percentage of credit loss rate | 0.09%
Stage 1 | Ba2 – B3 | 5 - 6 |
IFRS Statement [Line Items] |
Percentage of credit loss rate | 2.28%
Stage 1 | Caa1 - Caa3 | 7 |
IFRS Statement [Line Items] |
Percentage of credit loss rate | 7.81%
Stage 1 | Ca | 8 - 9 |
IFRS Statement [Line Items] |
Percentage of credit loss rate | 34.52%
Stage 1 | C | 10 |
IFRS Statement [Line Items] |
Percentage of credit loss rate | 100.00%

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