v3.26.1
Fair value measurement (Details 2) - CNY (¥)
¥ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Short-term investments      
Gain (loss) from changes in fair value option ¥ 804 ¥ 1,485 ¥ 2,092
Investment, Type [Extensible Enumeration] Wealth Management Product [Member] Wealth Management Product [Member] Wealth Management Product [Member]