XML 292 R279.htm IDEA: XBRL DOCUMENT
v3.26.1

Equity - Acquisition of treasury stock (Parenthetical) (Details) - shares |  |  |  |  | 12 Months Ended
--- | --- | --- | --- | --- | ---
Jun. 26, 2025 | Apr. 29, 2025 | Nov. 01, 2024 | Mar. 22, 2024 | Dec. 31, 2025 | Dec. 31, 2024
Treasury shares |  |  |  |  |  |
Acquisition Of Treasury Stock [Line Items] |  |  |  |  |  |
Retirement (share) | 10,347,131 | 7,603,260 | 5,947,889 | 3,366,257 | (17,950,391) | (9,314,146)

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

X
- References No definition available. + Details
Name: | shg_NumberOfTreasurySharesRetired
Namespace Prefix: | shg_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | shg_TreasurySharesAxis=ifrs-full_TreasurySharesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |