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SUMMARY OF PRINCIPAL ACCOUNTING POLICIES - Advertising and promotional expenses (Details) - CNY (¥) ¥ in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
SUMMARY OF PRINCIPAL ACCOUNTING POLICIES |  |  |
Advertising related expenses | ¥ 256 | ¥ 255 | ¥ 128

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- References No definition available. + Details
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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 -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(4)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2 + Details
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