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v3.26.1

Property and equipment - Insured assets (Details) ₩ in Millions | 12 Months Ended
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Dec. 31, 2025 KRW (₩)
Cash (including ATM) |
Insured assets [Line Items] |
Type of insurance | Comprehensive insurance for financial institutions
Amount covered | ₩ 29,500
Insurance company | Samsung Fire & Marine Insurance Co., Ltd., etc.
Property total risk, Machine risk, General liability collateral |
Insured assets [Line Items] |
Type of insurance | Comprehensive Property insurance
Amount covered | ₩ 1,430,372
Insurance company | Samsung Fire & Marine Insurance Co., Ltd., etc.
Business property and real estate |
Insured assets [Line Items] |
Type of insurance | Fire insurance
Amount covered | ₩ 20,008
Insurance company | Hanwha General Insurance Co., Ltd., etc.
Officer liability of executives |
Insured assets [Line Items] |
Type of insurance | Compensation liability insurance for officers
Amount covered | ₩ 46,000
Insurance company | Meritz Fire & Marine Insurance Co., Ltd., etc.
Cash and securities |
Insured assets [Line Items] |
Type of insurance | Burglary insurance
Amount covered | ₩ 60,000
Insurance company | Samsung Fire & Marine Insurance Co., Ltd., etc.
Personal information liability insurance |
Insured assets [Line Items] |
Type of insurance | Personal information liability insurance
Amount covered | ₩ 26,090
Insurance company | DB Insurance Co., Ltd., etc.
Others |
Insured assets [Line Items] |
Type of insurance | Others
Amount covered | ₩ 169,677
Insurance company | Samsung Fire & Marine Insurance Co., Ltd., etc.

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Namespace Prefix: | shg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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Name: | shg_InsuranceCompany
Namespace Prefix: | shg_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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Name: | shg_InsuredAssetsLineItems
Namespace Prefix: | shg_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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Name: | shg_TypeOfInsurance
Namespace Prefix: | shg_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | shg_InsuredAssetAxis=shg_CashAndCashEquivalentMember
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- Details
Name: | shg_InsuredAssetAxis=shg_GeneralAssetRiskMember
Namespace Prefix: |
Data Type: | na
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Period Type: |

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- Details
Name: | shg_InsuredAssetAxis=shg_FurnitureAndFixtureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | shg_InsuredAssetAxis=shg_DirectorAndOfficerLiabilityInsuranceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | shg_InsuredAssetAxis=shg_CashAndSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | shg_InsuredAssetAxis=shg_SecuritiesFidelityguaranteeandliabilityinsuranceMember
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Data Type: | na
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- Details
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