v3.25.4
Segment Information - Net Revenues (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Revenues from External Customers and Long-Lived Assets [Line Items]      
Total net revenues $ 11,800 $ 13,269 $ 17,286
Switzerland      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Total net revenues 2,948 3,944 5,755
France      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Total net revenues 112 147 158
Italy      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Total net revenues 35 34 54
USA      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Total net revenues 1,520 1,668 2,279
Singapore      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Total net revenues 6,563 6,808 8,138
Japan      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Total net revenues 612 657 890
Other countries      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Total net revenues $ 10 $ 11 $ 12