v3.26.1
Other current assets - Additional information (Details)
¥ in Millions, $ in Millions
12 Months Ended
Dec. 31, 2025
CNY (¥)
Dec. 31, 2025
USD ($)
Dec. 31, 2025
USD ($)
Dec. 31, 2024
CNY (¥)
Other current assets        
Inventory ¥ 55   $ 8  
Impairment of inventory 46 $ 7    
Receivables from individuals ¥ 47     ¥ 46
Minimum        
Other current assets        
Interest rates 0.00% 0.00%    
Maximum        
Other current assets        
Interest rates 5.50% 5.50%