v3.22.1

Business Combinations - Additional Information (Detail) ¥ in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2021 CNY (¥)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 CNY (¥)	Dec. 31, 2019 CNY (¥)	Dec. 31, 2021 USD ($)
Business Acquisition [Line Items]
Re-measurement gain relating to pre-existing equity interest | ¥			¥ 123
Purchase consideration	¥ 326	$ 51	3,500	¥ 1,200
Goodwill	22,605		22,248	18,250	$ 3,547
Business Combinations 2021 | JOYY [Member]
Business Acquisition [Line Items]
Purchase consideration		$ 1,900
Other non-current assets					100
Restricted cash					1,600
Business Combinations
Business Acquisition [Line Items]
Goodwill	¥ 357		¥ 4,000	¥ 978	$ 56

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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In a business combination achieved in stages, this element represents the amount of gain recognized by the entity as a result of remeasuring to fair value the equity interest in the acquiree it held before the business combination.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of cash restricted as to withdrawal or usage, classified as current. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits.

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