v3.24.2.u1
Income taxes (Tables)
 6 Months Ended
Jun. 30, 2024
Income Taxes [Abstract]  
Schedule of Income Tax Expense
Three-month period ended June 30,Six-month period ended June 30,
(CHF in millions)2024202320242023
Current income tax benefit/(expense) (8.1)(18.0)(18.6)(33.6)
Deferred income tax benefit/(expense) (3.8)28.0 (17.7)36.5 
Income tax benefit / (expense)(11.8)10.0 (36.3)2.9