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Equity - Hybrid bond Parenthetical (Details) ₩ in Millions | 12 Months Ended
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Dec. 31, 2025 KRW (₩)
Hybrid Instrument [Line Items] |
Deduction for capital related to hybrid bonds issued | ₩ 2,131

X
- Definition Deduction for capital related to hybrid bonds issued + References No definition available. + Details
Name: | shg_DeductionForCapitalRelatedToHybridBondsIssued
Namespace Prefix: | shg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Hybrid instrument. + References No definition available. + Details
Name: | shg_HybridInstrumentLineItems
Namespace Prefix: | shg_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration