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EMPLOYEE BENEFIT PLANS (Details) - CNY (¥)
¥ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
EMPLOYEE BENEFIT PLANS      
Total contribution for employee benefits ¥ 699 ¥ 645 ¥ 544
Contributions recognized as expense ¥ 90 ¥ 74 ¥ 55