Fair value measurement - Convertible and exchangeable bonds (Details) - Level 3 - CNY (¥) ¥ in Millions |
12 Months Ended | |
|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
|
| Convertible and exchangeable bonds accounted for under the fair value option | ||
| Additions | ¥ 3,022 | |
| Net increase in fair value | ¥ 40 | 14 |
| Foreign currency translation adjustments | (60) | 3 |
| Convertible and exchangeable bonds | ||
| Convertible and exchangeable bonds accounted for under the fair value option | ||
| Balance as of beginning | 818 | 3,197 |
| Additions | 2,343 | 311 |
| Net increase in fair value | 73 | 63 |
| Disposal | (112) | (1,767) |
| Conversion | (61) | (985) |
| Foreign currency translation adjustments | (72) | (1) |
| Balance as of end | ¥ 2,989 | ¥ 818 |
| X | ||||||||||
- Definition Amount of conversion or exchange adjustments for financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. No definition available.
|
| X | ||||||||||
- Definition Amount of foreign currency translation adjustments for financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. No definition available.
|
| X | ||||||||||
- Definition Amount of net increase (decrease) in fair value from asset measured at fair value on recurring basis using unobservable input (level 3). No definition available.
|
| X | ||||||||||
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
|
| X | ||||||||||
- Definition Amount of purchases of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of sale of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Fair value of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|