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Significant equity transactions, mergers and acquisitions and investments - Cainiao Network (Details) - Cainiao Network ¥ in Millions	1 Months Ended
	Jun. 30, 2020 CNY (¥)
Equity transactions, mergers and acquisitions and investments
Cash consideration for additional equity interest acquired	¥ 3,921
Reduction of noncontrolling interest	¥ 2,051
Equity interest held (as a percentage)	66.00%

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Percentage of voting equity interests acquired in a business combination achieved in stages, including equity interests in the acquiree held by the acquirer immediately before the acquisition date and acquired at the acquisition date.

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Decrease in noncontrolling interest (for example, but not limited to, redeeming or purchasing the interests of noncontrolling shareholders, issuance of shares (interests) by the non-wholly owned subsidiary to the parent entity for other than cash, and a buyback of shares (interest) by the non-wholly owned subsidiary from the noncontrolling interests).

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The cash outflow associated with the purchase of noncontrolling interest during the period.

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