v3.26.1
Restructuring - Changes in Accrued Restructuring Balance (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Restructuring Reserve [Roll Forward]    
Restructuring $ 0 $ (1)
Employee Severance    
Restructuring Reserve [Roll Forward]    
Liability balance as of period start 30  
Restructuring (2) (1)
Cash payments (7)  
Foreign exchange rate adjustment (1)  
Liability balance as of period end 20  
Professional Services    
Restructuring Reserve [Roll Forward]    
Liability balance as of period start 0  
Restructuring 1 $ 0
Cash payments 0  
Foreign exchange rate adjustment 0  
Liability balance as of period end 1  
Employee Severance And Professional Services    
Restructuring Reserve [Roll Forward]    
Liability balance as of period start 30  
Restructuring (1)  
Cash payments (7)  
Foreign exchange rate adjustment (1)  
Liability balance as of period end $ 21