Basis of preparation and material accounting policies (Tables) |
12 Months Ended | |||||||||||||||
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Dec. 31, 2025 | ||||||||||||||||
| Accounting policies [Abstract] | ||||||||||||||||
| Estimated economic useful lives for premises and equipment except for land | While land is not depreciated, for all other premises and equipment, depreciation is charged to net income on a straight-line basis by applying the following estimated economic useful lives on the amount of cost or revalued amount less residual value.
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| Estimated useful life for intangible assets | The estimated useful life and amortization method of intangible assets with a finite useful life are reviewed at the end of each reporting period. If changes in the estimates are deemed appropriate, the changes are accounted for as a change in an accounting estimate.
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