v3.26.1
Fair value measurement - Deferred consideration (Details) - Level 3 - CNY (¥)
¥ in Millions
12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Contingent consideration in relation to investments and acquisitions    
Balance as of beginning ¥ 3,039 ¥ 0
Additions   3,022
Net increase in fair value 40 14
Foreign currency translation adjustments (60) 3
Balance as of end ¥ 3,019 ¥ 3,039