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Investment in equity investees (Details) - CNY (¥) ¥ in Millions | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Measurement Alternative and NAV practical expedient investments |  |  |
Carrying amount of investment under NAV practical expedient | ¥ 7,982 | ¥ 7,325 |
Carrying values of equity investments measured at fair value using the Measurement Alternative | 20,707 | 19,643 |
Measurement alternative and NAV practical expedient investments | ¥ 1,683 | ¥ 4,787 | ¥ 10,201

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- Definition Amount of alternative investments, over which the Group do not have the ability to exercise significant influence, and are accounted for under the existing practical expedient in ASC Topic 820, Fair Value Measurements and Disclosures ("ASC 820") to estimate fair value using the net asset value per share (or its equivalent) of the investment ("NAV practical expedient"). + References No definition available. + Details
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- Definition Original cost of investment in equity security without readily determinable fair value and NAV practical expedient investments. + References No definition available. + Details
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- Definition Amount of investment in equity security without readily determinable fair value. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 321 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126980263&loc=SL75117539-209714 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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