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Share-based compensation (Details 5) - CNY (¥)
¥ / shares in Units, ¥ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Share-based compensation      
Share-based compensation expenses ¥ 2,343,785 ¥ 1,193,945 ¥ 4,249,548
RSUs | 2015 JD Finance Plan      
Share-based compensation      
Shares granted as the percentage of ordinary shares 2.94% 7.25%  
Weighted average grant date fair value of the restricted share units granted (in RBM per share) ¥ 7.17 ¥ 4.25  
Share-based compensation expenses ¥ 260,581 ¥ 95,664  
Unrecognized share-based compensation expense related to the founder share options granted ¥ 681,437    
Weighted-average period over which share-based compensation expense is expected to be recognized 5 years 6 months