Fair value measurement - Contingent consideration (Details) - Contingent consideration in relation to investments and acquisitions - Level 3 - CNY (¥) ¥ in Millions |
12 Months Ended | |
|---|---|---|
Mar. 31, 2023 |
Mar. 31, 2022 |
|
| Contingent consideration in relation to investments and acquisitions | ||
| Balance at beginning | ¥ 829 | ¥ 2,232 |
| Additions | 178 | 376 |
| Net decrease in fair value | (34) | (19) |
| Payment | (445) | (1,746) |
| Foreign currency translation adjustments | 9 | (14) |
| Balance at end | ¥ 537 | ¥ 829 |