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v2.4.1.9

Summary of significant accounting policies (Details) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2014 USD ($) | Dec. 31, 2014 CNY | Dec. 31, 2013 CNY | Dec. 31, 2012 CNY | Dec. 31, 2014 Minimum | Dec. 31, 2014 Maximum | Dec. 31, 2014 Electronic Equipment | Dec. 31, 2014 Office equipment | Dec. 31, 2014 Vehicles | Dec. 31, 2014 Logistic and warehouse equipment | Dec. 31, 2014 Leasehold improvement | Dec. 31, 2014 Software Minimum | Dec. 31, 2014 Software Maximum | Dec. 31, 2014 Building
Foreign currency translation |  |  |  |  |  |  |  |  |  |  |  |  |  |
Exchange gains/(losses) | $ (4,671)us-gaap_ForeignCurrencyTransactionGainLossBeforeTax | (28,980)us-gaap_ForeignCurrencyTransactionGainLossBeforeTax | 92,761 us-gaap_ForeignCurrencyTransactionGainLossBeforeTax | 13,762 us-gaap_ForeignCurrencyTransactionGainLossBeforeTax |  |  |  |  |  |  |  |  |  |
Foreign currency translation adjustment losses | 19,600 us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent | 121,612 us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent | 137,921 us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent | 7,546 us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent |  |  |  |  |  |  |  |  |  |
Convenience translation |  |  |  |  |  |  |  |  |  |  |  |  |  |
Convenience translation rate (RMB to USD) | 6.2046 jd_ForeignCurrencyTranslationRate | 6.2046 jd_ForeignCurrencyTranslationRate |  |  |  |  |  |  |  |  |  |  |  |
Short-term investments |  |  |  |  |  |  |  |  |  |  |  |  |  |
Impairment losses related to short-term investments |  | 0 us-gaap_OtherThanTemporaryImpairmentLossesInvestmentsAvailableforsaleSecurities | 0 us-gaap_OtherThanTemporaryImpairmentLossesInvestmentsAvailableforsaleSecurities | 0 us-gaap_OtherThanTemporaryImpairmentLossesInvestmentsAvailableforsaleSecurities |  |  |  |  |  |  |  |  |  |
Investment in equity investees |  |  |  |  |  |  |  |  |  |  |  |  |  |
Impairment losses related to equity investments |  | 0 us-gaap_CostmethodInvestmentsOtherThanTemporaryImpairment | 0 us-gaap_CostmethodInvestmentsOtherThanTemporaryImpairment | 0 us-gaap_CostmethodInvestmentsOtherThanTemporaryImpairment |  |  |  |  |  |  |  |  |  |
Property, equipment and software, net |  |  |  |  |  |  |  |  |  |  |  |  |  |
Estimated useful lives |  |  |  |  |  |  | 3 years | 5 years | 5 years | 5 years |  | 3 years | 5 years | 40 years
Estimated useful lives |  |  |  |  |  |  |  |  |  |  | Over the shorter of the expected life of leasehold improvements or the lease term |  |  |
Loan receivables, net |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loan periods extended range |  |  |  |  | 7 days | 182 days |  |  |  |  |  |  |  |
Construction in progress |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount of construction in progress | $ 310,882 us-gaap_ConstructionInProgressGross | 1,928,899 us-gaap_ConstructionInProgressGross | 1,237,644 us-gaap_ConstructionInProgressGross |  |  |  |  |  |  |  |  |  |  |

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