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INVESTMENTS (Tables) | 12 Months Ended
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Dec. 31, 2020
INVESTMENTS. |
Schedule of investments | ​
​ | ​ | ​ | ​ | ​
​ | ​ | As of December 31,
​ | ​ | 2019 | ​ | 2020
Equity securities with readily determinable fair values: |  |  |  |
Accor |  | 2,770 |  | 3,849
Other marketable securities |  | 138 |  | 54
Equity securities without readily determinable fair values: |  |  |  |
Cjia/Cjia Group |  | 232 |  | 183
OYO |  | 66 |  | 66
Other equity securities without readily determinable fair values |  | 100 |  | 72
Equity-method investments: |  |  |  |
AAPC LUB |  | 469 |  | 490
Hotel related funds |  | 507 |  | 476
China Hospitality JV |  | 115 |  | 103
Zleep | ​ | — | ​ | 88
Other investments |  | 220 |  | 225
Available-for-sale debt securities: |  |  |  |
Cjia/Cjia Group |  | 220 |  | 220
Total |  | 4,837 |  | 5,826

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- Definition Tabular disclosure of investment. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 325 -URI http://asc.fasb.org/topic&trid=2197064 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 321 -URI http://asc.fasb.org/topic&trid=75115024 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -URI http://asc.fasb.org/topic&trid=2196928 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -URI http://asc.fasb.org/topic&trid=2196965 + Details
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