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Earnings Per Share (Tables) | 6 Months Ended
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Jun. 30, 2021
Earnings Per Share [Abstract] |
Computation Of Basic And Diluted Earnings Per Share | The following table sets forth the computation of basic and diluted earnings per share (“EPS”) (shares in millions):
|  | Three Months Ended June 30, |  | Six Months Ended June 30,
|  | 2021 |  | 2020 |  | 2021 |  | 2020
Net income (loss) for basic and diluted EPS | $ | 398 |  |  | $ | (481) |  |  | 228 |  |  | $ | (639) |
Basic weighted average shares outstanding | 69.9 |  |  | 69.6 |  |  | 69.9 |  |  | 71.3 |
Non-vested stock (a) | 0.7 |  |  | — |  |  | 0.7 |  |  | — |
Diluted weighted average shares outstanding | 70.6 |  |  | 69.6 |  |  | 70.6 |  |  | 71.3 |
Earnings (loss) per share: |  |  |  |  |  |  |
| Basic | $ | 5.69 |  |  | $ | (6.91) |  |  | $ | 3.26 |  |  | $ | (8.96) |
| Diluted | $ | 5.63 |  |  | $ | (6.91) |  |  | $ | 3.23 |  |  | $ | (8.96) |
(a)For the three and six months ended June 30, 2020, 1.3 million non-vested stock awards, respectively, have an anti-dilutive effect and therefore are excluded from the computation of diluted weighted average shares outstanding.

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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=124432515&loc=d3e3550-109257 + Details
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