v3.25.4
Technology platform-based income - Additional Information (Detail) - CNY (¥)
¥ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Transaction price allocated to remaining performance obligations ¥ 5,058 ¥ 8,631 ¥ 18,911
Chinese mainland [member]      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Percentage of entity's revenue 100.00% 100.00% 100.00%