v3.26.1
Segment Reporting - Summary of Group's Operating Segment Results (Detail)
¥ in Millions, $ in Millions
 12 Months Ended
Dec. 31, 2025
CNY (¥)
Dec. 31, 2025
USD ($)
Dec. 31, 2024
CNY (¥)
Dec. 31, 2023
CNY (¥)
Segment Reporting Information [Line Items]        
Revenue ¥ 129,079 $ 18,458 ¥ 133,125 ¥ 134,598
Costs and expenses:        
Cost of revenue 72,436 10,358 66,102 65,031
Selling, general and administrative 25,843 3,696 23,620 23,519
Research and development 20,433 2,922 22,133 24,192
Impairment of long-lived assets 16,190 2,315 0 0
Total costs and expenses 134,902 19,291 111,855 112,742
Operating income (loss) (5,823) (833) 21,270 21,856
Total other income (loss), net 12,539 1,793 7,352 3,342
Income (loss) before income taxes 6,716 960 28,622 25,198
Income tax expense 1,259 180 4,447 3,649
Net income (loss) 5,457 780 24,175 21,549
Less: net income (loss) attributable to noncontrolling interests (132) (19) 415 1,234
Net income (loss) attributable to Baidu, Inc. 5,589 799 23,760 20,315
Operating Segments | Baidu General Business        
Segment Reporting Information [Line Items]        
Revenue 102,485 14,655 104,712 103,465
Costs and expenses:        
Cost of revenue 51,498 7,364 44,830 42,592
Selling, general and administrative 22,071 3,156 20,049 19,623
Research and development 18,770 2,684 20,355 22,425
Impairment of long-lived assets 16,190 2,315    
Total costs and expenses 108,529 15,519 85,234 84,640
Operating income (loss) (6,044) (864) 19,478 18,825
Total other income (loss), net 12,828 1,834 8,311 4,298
Income (loss) before income taxes 6,784 970 27,789 23,123
Income tax expense 1,115 159 4,386 3,568
Net income (loss) 5,669 811 23,403 19,555
Less: net income (loss) attributable to noncontrolling interests (22) (3) (28) 154
Net income (loss) attributable to Baidu, Inc. 5,691 814 23,431 19,401
Operating Segments | iQIYI        
Segment Reporting Information [Line Items]        
Revenue 27,290 3,902 29,225 31,873
Costs and expenses:        
Cost of revenue 21,541 3,080 21,954 23,103
Selling, general and administrative 3,857 552 3,682 4,014
Research and development 1,663 238 1,778 1,767
Impairment of long-lived assets 0 0    
Total costs and expenses 27,061 3,870 27,414 28,884
Operating income (loss) 229 32 1,811 2,989
Total other income (loss), net (289) (41) (959) (956)
Income (loss) before income taxes (60) (9) 852 2,033
Income tax expense 144 21 61 81
Net income (loss) (204) (30) 791 1,952
Less: net income (loss) attributable to noncontrolling interests 3 0 27 27
Net income (loss) attributable to Baidu, Inc. (207) (30) 764 1,925
Intersegment Eliminations & Adjustments        
Segment Reporting Information [Line Items]        
Revenue (696) (99) (812) (740)
Costs and expenses:        
Cost of revenue (603) (86) (682) (664)
Selling, general and administrative (85) (12) (111) (118)
Research and development 0 0 0 0
Impairment of long-lived assets 0 0    
Total costs and expenses (688) (98) (793) (782)
Operating income (loss) (8) (1) (19) 42
Total other income (loss), net 0 0 0 0
Income (loss) before income taxes (8) (1) (19) 42
Income tax expense 0 0 0 0
Net income (loss) (8) (1) (19) 42
Less: net income (loss) attributable to noncontrolling interests (113) (16) 416 1,053
Net income (loss) attributable to Baidu, Inc. ¥ 105 $ 15 ¥ (435) ¥ (1,011)