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Related Party Transactions - Schedule Of Revenue Received From Major Related Parties (Detail) - Related Party [Member] ¥ in Millions, $ in Millions		12 Months Ended
		Dec. 31, 2023 CNY (¥)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 CNY (¥)	Dec. 31, 2021 CNY (¥)
Revenues:
Revenues		¥ 2,699	$ 380	¥ 2,243	¥ 2,367
Related Party A
Revenues:
Revenues		540	76	158	315
Related Party B
Revenues:
Revenues		924	130	889	888
Related Party D
Revenues:
Revenues		338	48	257	123
Related Party E
Revenues:
Revenues	[1]	0	0	0	126
Other Investees
Revenues:
Revenues		¥ 897	$ 126	¥ 939	¥ 915
[1] The transactions mainly represent revenues arising from services including online marketing services and cloud services the Company provided to Related Party E. Related Party E ceases to be a related party from February 2021 as the Company does not have significant influence over Related Party E after its public listing.

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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