EMPLOYEE BENEFIT PLANS (Details) - CNY (¥) ¥ in Millions	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025
EMPLOYEE BENEFIT PLANS
Total contribution for employee benefits	¥ 547	¥ 468
Contributions recognized as expense	¥ 65	¥ 46

Amount of cost for defined contribution plan.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 70
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480794/715-70-50-1

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration