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v3.25.1

Summary of significant accounting policies (Details) ¥ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 CNY (¥) | Dec. 31, 2023 CNY (¥) | Dec. 31, 2022 CNY (¥)
Foreign currency translation |  |  |
Debt Instrument, Face Amount | ¥ 8,300 |  |
Convenience translation |  |  |
Convenience translation rate (RMB to USD) | 7.2993 |  |
Loan receivables, net |  |  |
Provision for the doubtful loan receivables | ¥ 0 | ¥ 0 | ¥ 0
Minimum |  |  |
Loan receivables, net |  |  |
Loan periods extended range | 1 month |  |
Maximum |  |  |
Loan receivables, net |  |  |
Loan periods extended range | 24 months |  |
Electronic equipment | Minimum |  |  |
Property, equipment and software, net |  |  |
Estimated useful Lives (in Years) | 3 years |  |
Electronic equipment | Maximum |  |  |
Property, equipment and software, net |  |  |
Estimated useful Lives (in Years) | 5 years |  |
Office equipment |  |  |
Property, equipment and software, net |  |  |
Estimated useful Lives (in Years) | 5 years |  |
Vehicles | Minimum |  |  |
Property, equipment and software, net |  |  |
Estimated useful Lives (in Years) | 3 years |  |
Vehicles | Maximum |  |  |
Property, equipment and software, net |  |  |
Estimated useful Lives (in Years) | 6 years |  |
Logistic,warehouse and other heavy equipment | Minimum |  |  |
Property, equipment and software, net |  |  |
Estimated useful Lives (in Years) | 5 years |  |
Logistic,warehouse and other heavy equipment | Maximum |  |  |
Property, equipment and software, net |  |  |
Estimated useful Lives (in Years) | 10 years |  |
Leasehold improvement |  |  |
Property, equipment and software, net |  |  |
Estimated useful Lives | Over the shorter of the expected life of leasehold improvements or the lease term |  |
Software | Minimum |  |  |
Property, equipment and software, net |  |  |
Estimated useful Lives (in Years) | 3 years |  |
Software | Maximum |  |  |
Property, equipment and software, net |  |  |
Estimated useful Lives (in Years) | 5 years |  |
Building | Minimum |  |  |
Property, equipment and software, net |  |  |
Estimated useful Lives (in Years) | 30 years |  |
Building | Maximum |  |  |
Property, equipment and software, net |  |  |
Estimated useful Lives (in Years) | 40 years |  |
Building improvement | Minimum |  |  |
Property, equipment and software, net |  |  |
Estimated useful Lives (in Years) | 5 years |  |
Building improvement | Maximum |  |  |
Property, equipment and software, net |  |  |
Estimated useful Lives (in Years) | 10 years |  |
Land |  |  |
Property, equipment and software, net |  |  |
Estimated useful Lives | Indefinite |  |
Other non-current assets |  |  |
Loan receivables, net |  |  |
The loan receivables with the collection period over one year | ¥ 373 | 251 |
Prepayments and other current assets |  |  |
Loan receivables, net |  |  |
The loan receivables with the collection period less than one year | ¥ 1,279 | ¥ 1,711 |

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