v3.25.4
Cover Page
 12 Months Ended
Dec. 31, 2025
shares
Document and Entity Information [Line Items]  
Document Type 20-F
Document Registration Statement false
Document Annual Report true
Document Period End Date Dec. 31, 2025
Current Fiscal Year End Date --12-31
Document Transition Report false
Document Shell Company Report false
Entity File Number 001-08382
Entity Incorporation, State or Country Code V7
Entity Address, Address Line One Fleminggatan 20
Entity Address, Postal Zip Code SE-112 26
Entity Address, City or Town Stockholm
Entity Address, Country SE
Entity Common Stock, Shares Outstanding 3,990,000
Entity Well-known Seasoned Issuer Yes
Entity Voluntary Filers No
Entity Current Reporting Status Yes
Entity Interactive Data Current Yes
Entity Filer Category Non-accelerated Filer
Entity Emerging Growth Company false
ICFR Auditor Attestation Flag false
Document Financial Statement Error Correction [Flag] false
Document Accounting Standard International Financial Reporting Standards
Entity Shell Company false
Document Fiscal Year Focus 2025
Entity Registrant Name SWEDISH EXPORT CREDIT CORP /SWED/
Entity Central Index Key 0000352960
Document Fiscal Period Focus FY
Amendment Flag false
Business Contact [Member]  
Document and Entity Information [Line Items]  
Entity Address, Address Line One P.O.Box 194
Entity Address, Postal Zip Code SE-101 23
Entity Address, City or Town Stockholm
Entity Address, Country SE
Contact Personnel Name Tobias Hornberger
Contact Personnel Email Address Tobias.Hornberger@sek.se
City Area Code +46 70
Local Phone Number 8481385