Long-term investments (Details) ¥ in Millions, $ in Millions |
12 Months Ended | ||||
|---|---|---|---|---|---|
|
Dec. 31, 2025
CNY (¥)
|
Dec. 31, 2025
USD ($)
|
Dec. 31, 2024
CNY (¥)
|
Dec. 31, 2023
CNY (¥)
|
Dec. 31, 2025
USD ($)
|
|
| Long-term investments | |||||
| Long-term investments | ¥ 73 | ¥ 79 | $ 10 | ||
| Impairment loss | ¥ 6 | $ 1 | ¥ 132 | ¥ 8 | |