v3.26.1
Leases - Additional Information (Detail)
¥ in Millions, $ in Millions
12 Months Ended
Dec. 31, 2025
CNY (¥)
Dec. 31, 2025
USD ($)
Dec. 31, 2024
CNY (¥)
Dec. 31, 2023
CNY (¥)
Leases [Abstract]        
Operating lease, weighted average remaining lease term 12 years 9 months 18 days 12 years 9 months 18 days 12 years 8 months 12 days  
Operating lease, weighted average discount rate 3.34% 3.34% 3.74%  
Short-term lease cost ¥ 481 $ 69 ¥ 397 ¥ 547
Operating lease cost ¥ 3,900 $ 546 ¥ 3,800 ¥ 3,500