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Supplier finance programs - Discount to financial institutions on behalf of suppliers (Details) - CNY (¥) ¥ in Millions	Mar. 31, 2025	Mar. 31, 2024
Supplier Finance Program [Line Items]
Supplier finance program, obligation	¥ 6,075	¥ 2,302
Accrued expenses, accounts payable and other liabilities
Supplier Finance Program [Line Items]
Supplier finance program, obligation	1,605	2,302
Bank borrowings
Supplier Finance Program [Line Items]
Supplier finance program, obligation	¥ 4,470	¥ 0

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- Definition

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