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Total Share-Based Compensation Cost Recognized (Detail) ¥ in Millions, $ in Millions | 12 Months Ended
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Dec. 31, 2019 CNY (¥) | Dec. 31, 2019 USD ($) | Dec. 31, 2018 CNY (¥) | Dec. 31, 2017 CNY (¥)
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |  |
Share-based compensation expense | ¥ 5,626 | $ 808 | ¥ 4,676 | ¥ 3,244
iQIYI |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |  |
Share-based compensation expense | 1,085 | 156 | 556 | 233
Cost of revenues |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |  |
Share-based compensation expense | 327 | 47 | 224 | 183
Cost of revenues | iQIYI |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |  |
Share-based compensation expense | 171 | 25 | 83 | 35
Selling, general and administrative |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |  |
Share-based compensation expense | 1,768 | 254 | 1,725 | 973
Selling, general and administrative | iQIYI |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |  |
Share-based compensation expense | 676 | 97 | 369 | 131
Research and development |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |  |
Share-based compensation expense | 3,531 | 507 | 2,727 | 2,088
Research and development | iQIYI |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |  |
Share-based compensation expense | ¥ 238 | $ 34 | ¥ 104 | ¥ 67

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