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ACQUISITIONS - CitiGo Hotels (Details) - CitiGo Hotels - CNY (¥) ¥ in Millions |  | 12 Months Ended
--- | --- | ---
Apr. 30, 2021 | Dec. 31, 2021
Acquisitions |  |
Percentage of ownership interest acquired | 100.00% |
Aggregated consideration | ¥ 783 |
Cash consideration |  | ¥ 749

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