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Intangible assets - Key assumptions used in the discounted cash flow calculations of CGUs (Details) | Dec. 31, 2025
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Other Than Life insurance [Member] | CPI growth [Member] | 2025 [member] |
Disclosure of information for cash-generating units [line items] |
Key Assumptions Used In The Discounted Cash Flow Projections Of Cash Generating Units, Rate | 2.10%
Other Than Life insurance [Member] | CPI growth [Member] | 2026 [member] |
Disclosure of information for cash-generating units [line items] |
Key Assumptions Used In The Discounted Cash Flow Projections Of Cash Generating Units, Rate | 1.70%
Other Than Life insurance [Member] | CPI growth [Member] | 2027 [member] |
Disclosure of information for cash-generating units [line items] |
Key Assumptions Used In The Discounted Cash Flow Projections Of Cash Generating Units, Rate | 1.80%
Other Than Life insurance [Member] | CPI growth [Member] | 2028 [Member] |
Disclosure of information for cash-generating units [line items] |
Key Assumptions Used In The Discounted Cash Flow Projections Of Cash Generating Units, Rate | 2.10%
Other Than Life insurance [Member] | CPI growth [Member] | 2029 [Member] |
Disclosure of information for cash-generating units [line items] |
Key Assumptions Used In The Discounted Cash Flow Projections Of Cash Generating Units, Rate | 1.90%
Other Than Life insurance [Member] | CPI growth [Member] | 2030 [Member] |
Disclosure of information for cash-generating units [line items] |
Key Assumptions Used In The Discounted Cash Flow Projections Of Cash Generating Units, Rate | 1.90%
Other Than Life insurance [Member] | Private Consumption Growth [Member] | 2025 [member] |
Disclosure of information for cash-generating units [line items] |
Key Assumptions Used In The Discounted Cash Flow Projections Of Cash Generating Units, Rate | 0.80%
Other Than Life insurance [Member] | Private Consumption Growth [Member] | 2026 [member] |
Disclosure of information for cash-generating units [line items] |
Key Assumptions Used In The Discounted Cash Flow Projections Of Cash Generating Units, Rate | 1.10%
Other Than Life insurance [Member] | Private Consumption Growth [Member] | 2027 [member] |
Disclosure of information for cash-generating units [line items] |
Key Assumptions Used In The Discounted Cash Flow Projections Of Cash Generating Units, Rate | 1.60%
Other Than Life insurance [Member] | Private Consumption Growth [Member] | 2028 [Member] |
Disclosure of information for cash-generating units [line items] |
Key Assumptions Used In The Discounted Cash Flow Projections Of Cash Generating Units, Rate | 1.90%
Other Than Life insurance [Member] | Private Consumption Growth [Member] | 2029 [Member] |
Disclosure of information for cash-generating units [line items] |
Key Assumptions Used In The Discounted Cash Flow Projections Of Cash Generating Units, Rate | 2.10%
Other Than Life insurance [Member] | Private Consumption Growth [Member] | 2030 [Member] |
Disclosure of information for cash-generating units [line items] |
Key Assumptions Used In The Discounted Cash Flow Projections Of Cash Generating Units, Rate | 2.10%
Other Than Life insurance [Member] | Real GDP Growth [Member] | 2025 [member] |
Disclosure of information for cash-generating units [line items] |
Key Assumptions Used In The Discounted Cash Flow Projections Of Cash Generating Units, Rate | 0.80%
Other Than Life insurance [Member] | Real GDP Growth [Member] | 2026 [member] |
Disclosure of information for cash-generating units [line items] |
Key Assumptions Used In The Discounted Cash Flow Projections Of Cash Generating Units, Rate | 1.40%
Other Than Life insurance [Member] | Real GDP Growth [Member] | 2027 [member] |
Disclosure of information for cash-generating units [line items] |
Key Assumptions Used In The Discounted Cash Flow Projections Of Cash Generating Units, Rate | 1.70%
Other Than Life insurance [Member] | Real GDP Growth [Member] | 2028 [Member] |
Disclosure of information for cash-generating units [line items] |
Key Assumptions Used In The Discounted Cash Flow Projections Of Cash Generating Units, Rate | 2.00%
Other Than Life insurance [Member] | Real GDP Growth [Member] | 2029 [Member] |
Disclosure of information for cash-generating units [line items] |
Key Assumptions Used In The Discounted Cash Flow Projections Of Cash Generating Units, Rate | 2.10%
Other Than Life insurance [Member] | Real GDP Growth [Member] | 2030 [Member] |
Disclosure of information for cash-generating units [line items] |
Key Assumptions Used In The Discounted Cash Flow Projections Of Cash Generating Units, Rate | 2.10%
Life Insurance Component [Member] | Consumer price index growth rate (Bank of Korea) [Member] |
Disclosure of information for cash-generating units [line items] |
Key Assumptions Used In The Discounted Cash Flow Projections Of Cash Generating Units, Rate | 2.00%
Life Insurance Component [Member] | Risk-based confidence level (%) [Member] |
Disclosure of information for cash-generating units [line items] |
Key Assumptions Used In The Discounted Cash Flow Projections Of Cash Generating Units, Rate | 99.50%

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