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Finite-Lived Intangible Assets (Detail) ¥ in Millions, $ in Millions | Dec. 31, 2017 USD ($) | Dec. 31, 2017 CNY (¥) | Dec. 31, 2016 CNY (¥)
--- | --- | --- | ---
Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-lived intangible assets, gross carrying value |  | ¥ 13,169 | ¥ 9,112
Finite-lived intangible assets, accumulated amortization and impairment |  | (7,703) | (5,254)
Finite-lived intangible assets, net carrying value | $ 840 | 5,466 | 3,858
Land use right |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-lived intangible assets, gross carrying value |  | 464 | 464
Finite-lived intangible assets, accumulated amortization and impairment |  | (193) | (54)
Finite-lived intangible assets, net carrying value | 42 | 271 | 410
Customer relationships |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-lived intangible assets, gross carrying value |  | 463 | 463
Finite-lived intangible assets, accumulated amortization and impairment |  | (463) | (462)
Finite-lived intangible assets, net carrying value | 0 | 0 | 1
Software |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-lived intangible assets, gross carrying value |  | 537 | 544
Finite-lived intangible assets, accumulated amortization and impairment |  | (499) | (424)
Finite-lived intangible assets, net carrying value | 6 | 38 | 120
Trademarks |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-lived intangible assets, gross carrying value |  | 578 | 596
Finite-lived intangible assets, accumulated amortization and impairment |  | (464) | (205)
Finite-lived intangible assets, net carrying value | 17 | 114 | 391
User list |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-lived intangible assets, gross carrying value |  | 677 | 699
Finite-lived intangible assets, accumulated amortization and impairment |  | (667) | (657)
Finite-lived intangible assets, net carrying value | 2 | 10 | 42
Licensed copyrights of video contents |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-lived intangible assets, gross carrying value |  | 9,384 | 5,608
Finite-lived intangible assets, accumulated amortization and impairment |  | (4,826) | (2,993)
Finite-lived intangible assets, net carrying value | 700 | 4,558 | 2,615
Others |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-lived intangible assets, gross carrying value |  | 1,066 | 738
Finite-lived intangible assets, accumulated amortization and impairment |  | (591) | (459)
Finite-lived intangible assets, net carrying value | $ 73 | ¥ 475 | ¥ 279

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