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Related parties - Transactions with the related parties (Details) (Parenthetical) ₩ in Millions | 12 Months Ended
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Dec. 31, 2025 KRW (₩)
Related party transactions [abstract] |
Disposal gain of related parties | ₩ 2,652

X
- References No definition available. + Details
Name: | ifrs-full_RelatedPartyTransactionsAbstract
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disposal gain of related parties. + References No definition available. + Details
Name: | shg_DisposalGainOfRelatedParties
Namespace Prefix: | shg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration