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JD Digits reorganization (Details 5) - CNY (¥)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
JD Digits    
JD Digits reorganization    
Maximum exposure to loss ¥ 3,902,238,000 ¥ 12,076,035,000
Held-for-sale | JD Digits    
JD Digits reorganization    
Profit sharing payments recognized ¥ 0