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Intangible assets - Discount rates and terminal growth rates (Details)	Dec. 31, 2025
Banking | Minimum
Disclosure of detailed information about intangible assets [line items]
Discount rate	8.40%
Growth rate used to extrapolate cash flow projections	0.00%
Banking | Maximum
Disclosure of detailed information about intangible assets [line items]
Discount rate	15.60%
Growth rate used to extrapolate cash flow projections	2.00%
Credit card | Minimum
Disclosure of detailed information about intangible assets [line items]
Discount rate	10.00%
Growth rate used to extrapolate cash flow projections	1.00%
Credit card | Maximum
Disclosure of detailed information about intangible assets [line items]
Discount rate	15.30%
Growth rate used to extrapolate cash flow projections	2.00%
Others
Disclosure of detailed information about intangible assets [line items]
Growth rate used to extrapolate cash flow projections	1.00%
Others | Minimum
Disclosure of detailed information about intangible assets [line items]
Discount rate	9.10%
Others | Maximum
Disclosure of detailed information about intangible assets [line items]
Discount rate	11.20%
Life insurance [member] | Minimum
Disclosure of detailed information about intangible assets [line items]
Discount rate	2.78%
Life insurance [member] | Maximum
Disclosure of detailed information about intangible assets [line items]
Discount rate	4.30%

X

- Definition

The discount rate applied to cash flow projections for a cash-generating unit (group of units). [Refer: Total for all cash-generating units [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 36
-IssueDate 2025-01-01
-Paragraph 134
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Note Effective 2027-01-01
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-IssueDate 2025-01-01
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Note Effective 2027-01-01
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-Note Effective 2027-01-01
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-Note Effective 2027-01-01
-Name IFRS
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-URIDate 2025-03-27

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- Definition

The growth rate used to extrapolate cash flow projections beyond the period covered by the most recent budgets/forecasts for a cash-generating unit (group of units). [Refer: Total for all cash-generating units [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 36
-IssueDate 2025-01-01
-Paragraph 134
-Subparagraph d
-Clause iv
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=36&code=ifrs-tx-2025-en-r&anchor=para_134_d_iv&doctype=Standard
-URIDate 2025-03-27

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 36
-IssueDate 2025-01-01
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-URIDate 2025-03-27

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Note Effective 2027-01-01
-Name IFRS
-Number 19
-IssueDate 2025-01-01
-Paragraph 254
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-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=19&code=ifrs-tx-2025-en-r&anchor=para_254_f_i&doctype=Standard
-URIDate 2025-03-27

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-Note Effective 2027-01-01
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Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

+ References

No definition available.

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