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v3.22.1

Summary of significant accounting policies (Details) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 CNY (¥) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 CNY (¥) | Dec. 31, 2019 CNY (¥)
Foreign currency translation |  |  |  |
Total exchange gains/(losses) | ¥ 42,000,000 | $ 7 | ¥ (90,000,000) | ¥ 124,000,000
Total foreign currency translation adjustments gains/(losses) | ¥ (2,872,000,000) | $ (451) | (7,955,000,000) | 794,000,000
Convenience translation |  |  |  |
Convenience translation rate (RMB to USD) | 6.3726 |  |  |
Loan receivables, net |  |  |  |
Provision for the doubtful loan receivables | ¥ 0 |  | 0 | 0
Construction in progress |  |  |  |
Amount of construction in progress | 5,817,000,000 |  | 7,906,000,000 |
Others, net |  |  |  |
Foreign currency translation |  |  |  |
Total exchange gains/(losses) | ¥ 42,000,000 |  | (90,000,000) | ¥ 124,000,000
Minimum |  |  |  |
Loan receivables, net |  |  |  |
Loan periods extended range | 1 month | 1 month |  |
Maximum |  |  |  |
Loan receivables, net |  |  |  |
Loan periods extended range | 24 months | 24 months |  |
Electronic equipment | Minimum |  |  |  |
Property, equipment and software, net |  |  |  |
Estimated useful Lives (in Years) | 3 years | 3 years |  |
Electronic equipment | Maximum |  |  |  |
Property, equipment and software, net |  |  |  |
Estimated useful Lives (in Years) | 5 years | 5 years |  |
Office equipment |  |  |  |
Property, equipment and software, net |  |  |  |
Estimated useful Lives (in Years) | 5 years | 5 years |  |
Vehicles | Minimum |  |  |  |
Property, equipment and software, net |  |  |  |
Estimated useful Lives (in Years) | 3 years | 3 years |  |
Vehicles | Maximum |  |  |  |
Property, equipment and software, net |  |  |  |
Estimated useful Lives (in Years) | 5 years | 5 years |  |
Logistic,warehouse and other heavy equipment | Minimum |  |  |  |
Property, equipment and software, net |  |  |  |
Estimated useful Lives (in Years) | 5 years | 5 years |  |
Logistic,warehouse and other heavy equipment | Maximum |  |  |  |
Property, equipment and software, net |  |  |  |
Estimated useful Lives (in Years) | 10 years | 10 years |  |
Software | Minimum |  |  |  |
Property, equipment and software, net |  |  |  |
Estimated useful Lives (in Years) | 3 years | 3 years |  |
Software | Maximum |  |  |  |
Property, equipment and software, net |  |  |  |
Estimated useful Lives (in Years) | 5 years | 5 years |  |
Building |  |  |  |
Property, equipment and software, net |  |  |  |
Estimated useful Lives (in Years) | 40 years | 40 years |  |
Building improvement | Minimum |  |  |  |
Property, equipment and software, net |  |  |  |
Estimated useful Lives (in Years) | 5 years | 5 years |  |
Building improvement | Maximum |  |  |  |
Property, equipment and software, net |  |  |  |
Estimated useful Lives (in Years) | 10 years | 10 years |  |
Other non-current assets |  |  |  |
Loan receivables, net |  |  |  |
The loan receivables with the collection period over one year | ¥ 733,000,000 |  | 259,000,000 |
Prepayments and other current assets |  |  |  |
Loan receivables, net |  |  |  |
The loan receivables with the collection period less than one year | ¥ 1,817,000,000 |  | ¥ 683,000,000 |

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