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Loan facilities and lines of credit (Details 4)
¥ in Millions
Dec. 31, 2022
CNY (¥)
Lines of credit and loan facilities  
Amount reserved for the issuance of bank acceptance ¥ 30,391
Amount reserved for bank guarantee 2,331
Unsecured revolving lines of credit  
Lines of credit and loan facilities  
Revolving lines of credit ¥ 131,367