Amount of total assets acquired less total liability assumed.

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Business combination recognized Property, equipment and software, construction in progress and land use rights appreciation.

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Cash consideration and business cooperation agreement as consideration of the acquisition.

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Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Percentage of voting equity interests acquired at the acquisition date in the business combination.

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The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

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The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

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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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Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

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Percentage of equity in the acquiree held by the acquirer immediately before the acquisition date in a business combination.

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Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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Business acquisition - Additional information (Details) ¥ in Millions, $ in Millions, $ in Millions			1 Months Ended	5 Months Ended		12 Months Ended
	Jul. 26, 2022 CNY (¥)	Mar. 01, 2022 HKD ($)	Feb. 28, 2022 USD ($)	Jul. 31, 2022 CNY (¥)	Jul. 31, 2022 HKD ($)	Dec. 31, 2024 CNY (¥)	Dec. 31, 2023 CNY (¥)	Dec. 31, 2022 CNY (¥)	Dec. 31, 2021 CNY (¥)	Dec. 31, 2024 USD ($)	Mar. 01, 2022 CNY (¥)	Sep. 30, 2021
Business Acquisition [Line Items]
Goodwill						¥ 25,709	¥ 19,980	¥ 23,123		$ 3,522
Finite-lived intangible asset, useful life						11 years 7 months 6 days	12 years 1 month 6 days
Dada Acquisition [Member]
Business Acquisition [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired			52.00%
Cash consideration and business cooperation agreement as consideration of the acquisition \| $			$ 800
Business Acquisition, Pro Forma Revenue								1,047,200	¥ 956,800
Business Acquisition, Pro Forma Net Income (Loss)								9,500	(6,300)
Goodwill											¥ 4,542
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Premium											3,623
Finite-lived intangible asset, useful life		7 years
Net assets acquired											7,549
Newly identified and appreciation of intangible assets											¥ 2,090
CNLP [Member]
Business Acquisition [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired											80.00%	26.38%
Percentage of equity in the acquiree held by the acquirer immediately before the acquisition date in a business combination											10.60%
Business Combination, Consideration Transferred				¥ 2,637	$ 3,072
Goodwill											¥ 1,586
Cash consideration \| $		$ 13,066
Net assets acquired											4,309
Appreciation of property, equipment and software, construction in progress and land-use rights											¥ 10,908
Deppon [Member]
Business Acquisition [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired	66.50%
Business Combination, Consideration Transferred	¥ 8,976
Business Acquisition, Pro Forma Revenue								1,063,200	982,800
Business Acquisition, Pro Forma Net Income (Loss)								¥ 9,700	¥ (4,500)
Goodwill	¥ 5,350
Finite-lived intangible asset, useful life	15 years 3 months 18 days
Net assets acquired	¥ 6,570
Newly identified and appreciation of intangible assets	¥ 2,345
Deppon Holdco [Member]
Business Acquisition [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired	99.99%