v3.25.4
Cover
 12 Months Ended
Dec. 31, 2025
shares
Document Information [Line Items]  
Document type 20-F
Document registration statement false
Document annual report true
Current fiscal year end date --12-31
Document period end date Dec. 31, 2025
Document transition report false
Document shell company report false
Entity file number 001-40795
Entity registrant name On Holding AG
Entity incorporation, state or country code V8
Entity address, address line one Förrlibuckstrasse 190
Entity address, postal zip code 8005
Entity address, city or town Zurich
Entity address, country CH
Title of 12(b) security Class A ordinary shares, par value CHF 0.10 per share
Trading symbol ONON
Security exchange name NYSE
Entity common stock, shares outstanding 296,873,353
Entity well-known seasoned issuer Yes
Entity voluntary filers No
Entity current reporting status Yes
Entity interactive data current Yes
Entity filer category Large Accelerated Filer
Entity emerging growth company false
ICFR auditor attestation flag true
Document Financial Statement Error Correction [Flag] false
Document accounting standard International Financial Reporting Standards
Entity shell company false
Amendment flag false
Entity central index key 0001858985
Document fiscal year focus 2025
Document fiscal period focus FY
Business contact  
Document Information [Line Items]  
Entity address, address line one Förrlibuckstrasse 190
Entity address, postal zip code 8005
Entity address, city or town Zurich
Entity address, country CH
Contact personnel name Martin Hoffmann
City area code +41
Local phone number 44 225 1555