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EARNINGS (LOSSES) PER SHARE (Tables) | 12 Months Ended
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Dec. 31, 2020
EARNINGS (LOSSES) PER SHARE |
Schedule of computation of basic and diluted earnings per share | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Years Ended December 31,
​ |  | 2018 |  | 2019 |  | 2020
Net income (loss) attributable to ordinary shareholders — basic |  | 716 |  | 1,769 |  | (2,192)
Eliminate the dilutive effect of interest expense of convertible senior notes |  | 40 |  | 40 |  | —
Net income attributable to ordinary shareholders — diluted |  | 756 |  | 1,809 |  | (2,192)
Weighted average ordinary shares outstanding — basic |  | 281,717,485 |  | 284,305,138 |  | 292,739,841
Incremental weighted-average ordinary shares from assumed exercise of share options and nonvested restricted stocks using the treasury stock method |  | 11,463,212 |  | 9,397,527 |  | —
Dilutive effect of convertible senior notes |  | 10,425,112 |  | 10,607,225 |  | —
Weighted average ordinary shares outstanding — diluted |  | 303,605,809 |  | 304,309,890 |  | 292,739,841
Basic earnings (losses) per share |  | 2.54 |  | 6.22 |  | (7.49)
Diluted earnings (losses) per share |  | 2.49 |  | 5.94 |  | (7.49)
Schedule of outstanding securities excluded from the computation of diluted earnings per share | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Years Ended December 31,
​ |  | 2018 |  | 2019 | ​ | 2020
Outstanding employee options and nonvested restricted stocks | ​ | 530,009 | ​ | — | ​ | 7,095,408
Shares of convertible senior notes | ​ | — | ​ | — | ​ | 18,327,489
Total |  | 530,009 |  | — |  | 25,422,897

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- Definition Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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