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SUMMARY OF PRINCIPAL ACCOUNTING POLICIES - Land use rights (Details) - CNY (¥) ¥ in Millions	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Accounting policies
Long-lived asset impairment loss	¥ 36	¥ 78
Impairment Long Lived Asset Held For Use Statement Of Income Or Comprehensive Income Extensible Enumeration Not Disclosed Flag	true
Minimum | Legacy Huazhu
Accounting policies
Initial lease term	10 years
Minimum | Legacy DH
Accounting policies
Initial lease term	20 years
Maximum | Legacy Huazhu
Accounting policies
Initial lease term	20 years
Maximum | Legacy DH
Accounting policies
Initial lease term	25 years

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The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale).

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Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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