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v3.26.1

Income tax expense - Summary of deferred tax assets and liabilities presented on a gross basis prior to any offsetting (Details) - KRW (₩) ₩ in Millions | Dec. 31, 2025 | Dec. 31, 2024
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Deferred tax assets and liabilities [abstract] |  |
Deferred tax assets | ₩ 1,266,026 | ₩ 1,375,325
Deferred tax liabilities | ₩ 1,503,107 | ₩ 1,593,640

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Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
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Namespace Prefix: | shg_
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- References No definition available. + Details
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Namespace Prefix: | shg_
Data Type: | xbrli:monetaryItemType
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