v3.26.1
Cover Page
 12 Months Ended
Dec. 31, 2025
shares
Document Information [Line Items]  
Entity Registrant Name Woori Financial Group Inc.
Entity Central Index Key 0001264136
Document Type 20-F
Document Registration Statement false
Document Annual Report true
Document Transition Report false
Document Shell Company Report false
Document Period End Date Dec. 31, 2025
Amendment Flag false
Document Fiscal Year Focus 2025
Document Fiscal Period Focus FY
Current Fiscal Year End Date --12-31
Entity Well-known Seasoned Issuer Yes
Entity Voluntary Filers No
Entity Current Reporting Status Yes
Entity Filer Category Large Accelerated Filer
Entity Common Stock, Shares Outstanding 734,022,375
Entity Emerging Growth Company false
Entity Shell Company false
Entity Interactive Data Current Yes
Entity Address, Country KR
Entity File Number 001-31811
Entity Incorporation, State or Country Code M5
Entity Address, Address Line One 51, Sogong-ro, Jung-gu
Entity Address, City or Town Seoul
Entity Address, Postal Zip Code 04632
ICFR Auditor Attestation Flag true
Document Financial Statement Error Correction [Flag] false
Document Accounting Standard International Financial Reporting Standards
Auditor Name KPMG Samjong Accounting Corp.
Auditor Firm ID 1357
Auditor Location Seoul, Korea
American Depositary Shares  
Document Information [Line Items]  
Title of 12(b) Security American Depositary Shares
Trading Symbol WF
Security Exchange Name NYSE
Common Stock  
Document Information [Line Items]  
Title of 12(b) Security Common Stock
Trading Symbol WF
Security Exchange Name NYSE
Business Contact  
Document Information [Line Items]  
Entity Address, Country KR
Contact Personnel Name Hong Sung Han
Entity Address, Address Line One 51, Sogong-ro, Jung-gu,
Entity Address, City or Town Seoul
Entity Address, Postal Zip Code 04632
City Area Code +82-2
Local Phone Number 2125-2051
Contact Personnel Fax Number +82-0505001-0408