v3.26.1
Summarized Financial Information (Detail)
¥ in Millions, $ in Millions
 12 Months Ended
Dec. 31, 2025
CNY (¥)
Dec. 31, 2025
USD ($)
Dec. 31, 2024
CNY (¥)
Dec. 31, 2023
CNY (¥)
Dec. 31, 2025
USD ($)
Schedule of Equity Method Investments [Line Items]          
Current assets ¥ 151,970   ¥ 168,849   $ 21,732
Non-current assets 297,187   258,931   42,497
Current liabilities 86,328   80,953   12,344
Non-current liabilities 73,103   63,215   10,454
Noncontrolling interests 10,230   10,122   1,463
Trip.com Group, Ltd          
Schedule of Equity Method Investments [Line Items]          
Current assets [1] 125,413   114,598   17,934
Non-current assets [1] 145,165   129,702   20,758
Current liabilities [1] 84,479   80,437   12,080
Non-current liabilities [1] 16,120   23,736   2,305
Noncontrolling interests [1] 1,752   984   251
Revenue [1] 59,755 $ 8,545 50,875 ¥ 39,212  
Gross profit [1] 48,233 6,897 41,515 31,902  
Income (loss) from operations [1] 15,540 2,222 14,073 8,887  
Net income (loss) [1] 31,304 4,476 16,378 10,740  
Net income (loss) attributable to the investees [1] 31,170 4,457 16,207 10,678  
Equity Method Investments excluding Trip          
Schedule of Equity Method Investments [Line Items]          
Current assets [2] 218,456   199,089   31,239
Non-current assets [2] 16,741   18,844   2,394
Current liabilities [2] 127,192   157,098   18,188
Non-current liabilities [2] 56,743   7,692   8,114
Noncontrolling interests [2] 1,721   1,654   $ 246
Revenue [2] 46,892 6,705 38,029 20,830  
Gross profit [2] 20,105 2,875 15,160 8,402  
Income (loss) from operations [2] 3,638 520 (2,403) (767)  
Net income (loss) [2] 2,660 380 (3,061) (1,196)  
Net income (loss) attributable to the investees [2] ¥ 2,600 $ 372 ¥ (3,051) ¥ (1,185)  
[1] The Group adopted a one-quarter lag in reporting for its share of equity earnings (losses) to Trip.
[2] The Group adopted a one-quarter lag in reporting for its share of equity earnings (losses) to a majority of equity method investees excluding Trip.