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Significant Accounting Policies - Sales & marketing expenses, Share-based compensation & Employees benefits & Taxation (Details) - CNY (¥) ¥ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Significant Accounting Policies
Marketing and promotional expenses	¥ 4,051.3	¥ 5,102.9	¥ 3,006.0

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- References

No definition available.

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- Definition

The total expense recognized in the period for promotion, public relations, and brand or product advertising.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.4)
-URI https://asc.fasb.org/extlink&oid=126953954&loc=SL114868664-224227

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