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Taxation (Details 4) - CNY (¥) ¥ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Taxation |  |  |
Balance at beginning of the Year | ¥ 4,289 | ¥ 3,674 | ¥ 2,996
Additions | 5,052 | 4,393 | 7,635
Reversals | (1,671) | (3,778) | (6,957)
Balance at end of the Year | ¥ 7,670 | ¥ 4,289 | ¥ 3,674

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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32537-109319 + Details
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