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Summary of Group's Operating Segment Results (Detail) ¥ in Millions, $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 CNY (¥) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 CNY (¥) | Dec. 31, 2021 CNY (¥)
Segment Reporting Information [Line Items] |  |  |  |
Total revenues | ¥ 134,598 | $ 18,958 | ¥ 123,675 | ¥ 124,493
Operating costs and expenses: |  |  |  |
Cost of revenues | 65,031 | 9,159 | 63,935 | 64,314
Selling, general and administrative | 23,519 | 3,314 | 20,514 | 24,723
Research and development | 24,192 | 3,407 | 23,315 | 24,938
Total operating costs and expenses | 112,742 | 15,880 | 107,764 | 113,975
Operating profit (loss) | 21,856 | 3,078 | 15,911 | 10,518
Total other income (loss), net | 3,342 | 472 | (5,799) | 260
Income (loss) before income taxes | 25,198 | 3,550 | 10,112 | 10,778
Income taxes | 3,649 | 514 | 2,578 | 3,187
Net income (loss) | 21,549 | 3,036 | 7,534 | 7,591
Less: net income (loss) attributable to noncontrolling interests | 1,234 | 175 | (25) | (2,635)
Net income (loss) attributable to Baidu, Inc. | 20,315 | 2,861 | 7,559 | 10,226
Operating Segments | Baidu Core |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues | 103,465 | 14,573 | 95,431 | 95,163
Operating costs and expenses: |  |  |  |
Cost of revenues | 42,592 | 5,999 | 42,378 | 37,838
Selling, general and administrative | 19,623 | 2,765 | 17,103 | 20,040
Research and development | 22,425 | 3,158 | 21,416 | 22,143
Total operating costs and expenses | 84,640 | 11,922 | 80,897 | 80,021
Operating profit (loss) | 18,825 | 2,651 | 14,534 | 15,142
Total other income (loss), net | 4,298 | 607 | (4,453) | 1,793
Income (loss) before income taxes | 23,123 | 3,258 | 10,081 | 16,935
Income taxes | 3,568 | 503 | 2,494 | 3,090
Net income (loss) | 19,555 | 2,755 | 7,587 | 13,845
Less: net income (loss) attributable to noncontrolling interests | 154 | 22 | 36 | 288
Net income (loss) attributable to Baidu, Inc. | 19,401 | 2,733 | 7,551 | 13,557
Operating Segments | iQIYI |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues | 31,873 | 4,489 | 28,998 | 30,554
Operating costs and expenses: |  |  |  |
Cost of revenues | 23,103 | 3,254 | 22,321 | 27,513
Selling, general and administrative | 4,014 | 565 | 3,466 | 4,725
Research and development | 1,767 | 249 | 1,899 | 2,795
Total operating costs and expenses | 28,884 | 4,068 | 27,686 | 35,033
Operating profit (loss) | 2,989 | 421 | 1,312 | (4,479)
Total other income (loss), net | (956) | (135) | (1,346) | (1,533)
Income (loss) before income taxes | 2,033 | 286 | (34) | (6,012)
Income taxes | 81 | 11 | 84 | 97
Net income (loss) | 1,952 | 275 | (118) | (6,109)
Less: net income (loss) attributable to noncontrolling interests | 27 | 4 | 18 | 61
Net income (loss) attributable to Baidu, Inc. | 1,925 | 271 | (136) | (6,170)
Intersegment Eliminations & Adjustments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues | (740) | (104) | (754) | (1,224)
Operating costs and expenses: |  |  |  |
Cost of revenues | (664) | (94) | (764) | (1,037)
Selling, general and administrative | (118) | (16) | (55) | (42)
Research and development | 0 | 0 | 0 | 0
Total operating costs and expenses | (782) | (110) | (819) | (1,079)
Operating profit (loss) | 42 | 6 | 65 | (145)
Total other income (loss), net | 0 | 0 | 0 | 0
Income (loss) before income taxes | 42 | 6 | 65 | (145)
Income taxes | 0 | 0 | 0 | 0
Net income (loss) | 42 | 6 | 65 | (145)
Less: net income (loss) attributable to noncontrolling interests | 1,053 | 149 | (79) | (2,984)
Net income (loss) attributable to Baidu, Inc. | ¥ (1,011) | $ (143) | ¥ 144 | ¥ 2,839

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