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Commitment and Contingencies - Additional Information (Detail) ¥ in Millions, $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2019 CNY (¥) | Dec. 31, 2019 USD ($) | Dec. 31, 2019 USD ($) | Dec. 31, 2018 CNY (¥)
Network Infrastructure and Buildings |  |  |  |
Commitments and Contingencies Disclosure [Line Items] |  |  |  |
Capital commitments contracted not yet reflected in financial statements | ¥ 560 |  | $ 81 |
Obligations related to the entity's directors and officers |  |  |  |
Commitments and Contingencies Disclosure [Line Items] |  |  |  |
Investment commitments | 1,300 | $ 183 |  |
Fair value of indemnification obligations related to the entity's directors and officers | ¥ 0 |  |  | ¥ 0

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- Definition Fair value portion of guarantee, including, but not limited to, financial standby letter of credit, fair value guarantee, guarantee of collection of scheduled contractual cash flows from financial assets, and contracts that contingently require the guarantor to make payments or perform services. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118943654&loc=d3e12201-110248 + Details
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- Definition Amount of funds committed to investment company from investors. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 205 -Section 50 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=25866437&loc=d3e10491-115837 + Details
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