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Earnings (Loss) Per Share ("EPS") | 12 Months Ended
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Dec. 31, 2020
Earnings Per Share [Abstract] |
Earnings (Loss) Per Share ("EPS") | 16. Earnings (Loss) Per Share (“EPS”) Basic EPS is based on net income (loss) attributable to the Company’s earnings and is calculated based upon the daily weighted-average number of common shares outstanding during the periods presented. Also, this calculation includes fully vested stock and unit awards that have not yet been issued as common stock. Diluted EPS includes the above, plus unvested stock, unit or option awards granted and vested unexercised stock options, but only to the extent these instruments dilute earnings (loss) per share. For the year ended December 31, 2020, 2019 and 2018, a total of approximately 6 million, 8 million and 5 million, respectively, of potentially dilutive shares were excluded from the computation of diluted earnings per share due to their antidilutive effect or due to the Company recognizing a net loss for the period. Basic and diluted EPS are as follows (in millions, except share data):
| Year Ended December 31, |  |
| 2020 |  |  | 2019 |  |  | 2018 |  |
Numerator: |  |  |  |  |  |  |  |  |  |  |
Net income (loss) attributable to the Company | $ | (427 | ) |  | $ | (97 | ) |  | $ | 52 |
Less: net income attributable to participating securities |  | — |  |  |  | — |  |  |  | (1 | )
Net income (loss) attributable to the Company's stockholders | $ | (427 | ) |  | $ | (97 | ) |  | $ | 51 |
Denominator: |  |  |  |  |  |  |  |  |  |  |
Weighted average basic common shares outstanding |  | 109,406,079 |  |  |  | 108,779,891 |  |  |  | 108,296,155 |
Effect of dilutive securities |  | — |  |  |  | — |  |  |  | 341,489 |
Weighted average diluted common shares outstanding |  | 109,406,079 |  |  |  | 108,779,891 |  |  |  | 108,637,644 |
Earnings (loss) per share attributable to the Company's stockholders: |  |  |  |  |  |  |  |  |  |  |
Basic | $ | (3.91 | ) |  | $ | (0.89 | ) |  | $ | 0.47 |
Diluted | $ | (3.91 | ) |  | $ | (0.89 | ) |  | $ | 0.47 |
Under ASC Topic 260, “Earnings Per Share,” the two-class method requires a portion of net income attributable to the Company to be allocated to participating securities, which are unvested awards of share-based payments with non-forfeitable rights to receive dividends or dividend equivalents, if declared. Net loss is not allocated to nonvested awards in periods the Company determines that those shares are not obligated to participate in losses. For the periods that the Company recognized net income, net income attributable to the Company allocated to these participating securities was excluded from net income attributable to the Company’s stockholders in the numerator of the earnings per share computation.

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109243012&loc=SL65017193-207537 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -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 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3630-109257 + Details
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