Borrowings - Summary of long term borrowings maturities (Details) - RMB - CNY (¥) ¥ in Millions |
Jun. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Disclosure of detailed information about borrowings [line items] | ||
| Long-term bank borrowings amount | ¥ 7,166 | ¥ 0 |
| Within 1 year | ||
| Disclosure of detailed information about borrowings [line items] | ||
| Long-term bank borrowings amount | 24 | 0 |
| Between 1 and 2 years | ||
| Disclosure of detailed information about borrowings [line items] | ||
| Long-term bank borrowings amount | 214 | 0 |
| Between 2 and 5 years | ||
| Disclosure of detailed information about borrowings [line items] | ||
| Long-term bank borrowings amount | 1,650 | 0 |
| Over 5 years | ||
| Disclosure of detailed information about borrowings [line items] | ||
| Long-term bank borrowings amount | ¥ 5,278 | ¥ 0 |