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Taxation (Details 2)
¥ in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2021
CNY (¥)
Dec. 31, 2021
USD ($)
Dec. 31, 2020
CNY (¥)
Dec. 31, 2019
CNY (¥)
Component of income tax expenses        
Current tax expense ¥ 3,720,321   ¥ 2,953,670 ¥ 2,764,097
Deferred tax expense 407,948   88,179 150,629
Income tax expenses ¥ 4,128,269 $ 647,815 ¥ 3,041,849 ¥ 2,914,726