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Cover Page
 12 Months Ended
Dec. 31, 2022
shares
Document and Entity Information  
Document Type 20-F
Document Annual Report true
Document Period End Date Dec. 31, 2022
Document Transition Report false
Document Shell Company Report false
Entity File Number 001-34656
Entity Registrant Name H World Group Limited
Entity Incorporation, State or Country Code E9
Entity Address, Address Line One No. 1299 Fenghua Road
Entity Address, City or Town Shanghai
Entity Address, Country CN
Title of 12(b) Security American Depositary Shares
Trading Symbol HTHT
Security Exchange Name NASDAQ
Entity Well-known Seasoned Issuer Yes
Entity Voluntary Filers No
Entity Current Reporting Status Yes
Entity Interactive Data Current Yes
Entity Filer Category Large Accelerated Filer
Entity Emerging Growth Company false
Document Registration Statement false
Document Accounting Standard U.S. GAAP
Entity Shell Company false
Entity Common Stock, Shares Outstanding 3,112,413,730
Entity Address, Postal Zip Code 201803
ICFR Auditor Attestation Flag true
Auditor Name Deloitte Touche Tohmatsu Certified Public Accountants LLP
Auditor Firm ID 1113
Auditor Location Shanghai, China
Entity Central Index Key 0001483994
Current Fiscal Year End Date --12-31
Document Fiscal Year Focus 2022
Document Fiscal Period Focus FY
Amendment Flag false
Business contact  
Document and Entity Information  
Contact Personnel Name Jihong He
Entity Address, Address Line One 11 Penang Lane
Entity Address, Country SG
City Area Code 65
Local Phone Number 8655-0278
Entity Address, Postal Zip Code 238485