OTHER OPERATING ASSETS AND LIABILITIES - Summary (Details) - CHF (SFr) SFr in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|---|---|---|---|
| Other assets - current: | |||
| Third party receivables | SFr 37.9 | SFr 63.4 | |
| Prepayments | 83.9 | 60.8 | |
| Contract assets | 5.0 | 14.6 | |
| Contract costs | 64.5 | 61.1 | |
| Inventories | 51.9 | 58.5 | |
| Other | 27.4 | 1.5 | |
| Total | 270.6 | 259.9 | |
| Other assets - non-current: | |||
| Trade receivables | 35.5 | 34.3 | |
| Prepayments | 43.2 | 82.1 | |
| Contract assets | 4.9 | 13.2 | |
| Contract costs | 18.0 | 19.2 | |
| Other | 0.6 | 11.6 | |
| Total | 102.2 | 160.4 | |
| Other liabilities - current: | |||
| Accrued other liabilities | 252.7 | 261.0 | |
| Accrued capital expenditures | 59.2 | 63.5 | |
| Accrued payroll and employee benefits | 44.4 | 68.3 | |
| Deferred revenue | 66.2 | 71.3 | SFr 66.7 |
| Other | 34.4 | 32.9 | |
| Total | 456.9 | 497.0 | |
| Other liabilities - non-current: | |||
| Other | 230.6 | 48.2 | |
| Total | SFr 230.6 | SFr 48.2 |
| X | ||||||||||
- Definition The amount of current contract assets. [Refer: Contract assets] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The amount of current contract liabilities. [Refer: Contract liabilities] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The amount of current payables for the purchase of non-current assets. [Refer: Payables for purchase of non-current assets] Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition The amount of current prepayments. [Refer: Prepayments] Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition The amount of current prepayments and other current assets. [Refer: Other current assets; Current prepayments] Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition The amount of current inventories. [Refer: Inventories] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition The amount of non-current contract assets. [Refer: Contract assets] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The amount of non-current prepayments. [Refer: Prepayments] Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition The amount of non-current trade receivables. [Refer: Trade receivables] Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition The amount of current assets that the entity does not separately disclose in the same statement or note. [Refer: Current assets] Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition The amount of current liabilities that the entity does not separately disclose in the same statement or note. [Refer: Current liabilities] Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition The amount of current non-financial liabilities that the entity does not separately disclose in the same statement or note. [Refer: Other financial liabilities] Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition The amount of current other receivables. [Refer: Other receivables] Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition The amount of non-current assets that the entity does not separately disclose in the same statement or note. [Refer: Non-current assets] Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition The amount of non-current liabilities that the entity does not separately disclose in the same statement or note. [Refer: Non-current liabilities] Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition The amount of non-current non-financial assets that the entity does not separately disclose in the same statement or note. [Refer: Financial assets] Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition The amount of non-current non-financial liabilities that the entity does not separately disclose in the same statement or note. [Refer: Other financial liabilities] Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition The amount of accruals for employee benefits (other than termination benefits) that are expected to be settled wholly within twelve months after the end of the annual reporting period in which the employees render the related services. [Refer: Accruals classified as current] Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Accruals, Other, Classified As Current No definition available.
|
| X | ||||||||||
- Definition Assets Recognised From Costs To Obtain Or Fulfil Contracts With Customers, Current No definition available.
|
| X | ||||||||||
- Definition Assets Recognised From Costs To Obtain Or Fulfil Contracts With Customers, Non-Current No definition available.
|