v3.26.1
Cover
6 Months Ended
Jun. 30, 2026
Document Information [Line Items]  
Document type 6-K
Document fiscal year focus 2026
Entity registrant name On Holding AG
Amendment flag false
Document fiscal period focus Q2
Entity central index key 0001858985
Current fiscal year end date --12-31
Document period end date Jun. 30, 2026