LEASING - Narrative (Details) SFr in Thousands |
12 Months Ended | |
|---|---|---|
|
Dec. 31, 2025
CHF (SFr)
|
Dec. 31, 2024
CHF (SFr)
|
|
| Disclosure Of Leases [Abstract] | ||
| Weighted average discount rate | 0.050 | 0.055 |
| Additions to right-of-use assets | SFr 151,700 | SFr 126,300 |
| Additional, balance-sheet adjustments | SFr 63,800 | |
| X | ||||||||||
- Definition The amount of additions to right-of-use assets other than those acquired through business combinations. [Refer: Total for all business combinations [member]; Right-of-use assets] Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition The amount of additions to right-of-use assets. [Refer: Right-of-use assets] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Disclosure Of Leases [Abstract] No definition available.
|
| X | ||||||||||
- Definition Weighted Average Lessee's Incremental Borrowing Rate Applied To Lease Liabilities No definition available.
|