v3.26.1
Shareholder's Equity - Additional Information (Detail)
$ / shares in Units, ¥ in Millions, $ in Millions
2 Months Ended 3 Months Ended 12 Months Ended
Feb. 28, 2026
shares
Mar. 31, 2026
USD ($)
Dec. 31, 2025
CNY (¥)
shares
Dec. 31, 2025
USD ($)
shares
Dec. 31, 2024
CNY (¥)
shares
Dec. 31, 2023
CNY (¥)
shares
Dec. 31, 2025
USD ($)
$ / shares
shares
Dec. 31, 2024
$ / shares
Dec. 31, 2024
CNY (¥)
shares
Feb. 28, 2023
USD ($)
Stockholders Equity Note [Line Items]                    
Shares authorized     69,632,000,000       69,632,000,000      
Transfer of Class B ordinary shares to Class A Ordinary shares     320,000 320,000 440,000 17,320,000        
Aggregate purchase price | ¥     ¥ (5,594)              
Allocation of after-tax profits to statutory surplus fund, percentage     10.00% 10.00%            
Limit of statutory surplus fund as a percentage of registered capital, after which allocations to statutory surplus fund are no longer required     50.00% 50.00%            
Amounts of restricted paid up capital and statutory reserve funds of PRC subsidiaries and net assets of VIEs     ¥ 40,400       $ 5,800   ¥ 48,100  
Foreign currency translation adjustment     ¥ 511 $ 73 ¥ 530 ¥ 687        
Balance number of Treasury stock, shares     71,309,744       71,309,744   83,456,676  
Stock retired during period, shares 71,016,408   54,938,160 54,938,160            
Stock Issued During Period exercise of share options and vesting of restricted shares     29,633,816 29,633,816            
2026 Shares Repurchase Program                    
Stockholders Equity Note [Line Items]                    
Repurchase of ordinary shares | $   $ 5,000                
2023 Shares Repurchase Program                    
Stockholders Equity Note [Line Items]                    
Stock repurchase program, proposed aggregate value | $                   $ 5,000
Preferred Stock                    
Stockholders Equity Note [Line Items]                    
Preferred stock, shares authorized     800,000,000       800,000,000      
Class A Ordinary Shares                    
Stockholders Equity Note [Line Items]                    
Common stock, shares authorized     66,000,000,000       66,000,000,000   66,000,000,000  
Par value per share (US$) | $ / shares             $ 0.000000625 $ 0.000000625    
Number of Class A ordinary shares repurchased     72,425,044 72,425,044 76,933,844 42,661,000        
Aggregate purchase price     ¥ 5,600 $ 771 ¥ 6,400 ¥ 4,800        
Class B Ordinary Shares                    
Stockholders Equity Note [Line Items]                    
Common stock, shares authorized     2,832,000,000       2,832,000,000   2,832,000,000  
Par value per share (US$) | $ / shares             $ 0.000000625 $ 0.000000625    
Number of votes per share     ten ten