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Earnings Per Share (Tables) | 3 Months Ended
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Mar. 31, 2023
Earnings Per Share [Abstract] |
Summary of Basic and Diluted (Net Loss) Earnings Per Share | Basic and diluted (net loss) earnings per share are as follows (in millions, ex cept for share and per share amounts):
|  | Three Months Ended |  |  | Three Months Ended |
|  | March 31, |  |  | March 31, |
|  | 2023 |  |  | 2022 |
Basic and diluted (net loss) earnings per share: |  |  |  |  |  |  |  |
Numerator |  |  |  |  |  |  |  |
Net (loss) income attributable to Alight, Inc. - basic and diluted |  | $ |  | (68 | ) |  | $ |  | (11 | )
Denominator |  |  |  |  |  |  |  |
Weighted-average shares outstanding - basic |  |  |  | 476,145,761 |  |  |  |  | 456,838,216 |
Basic and diluted (net loss) earnings per share |  | $ |  | (0.14 | ) |  | $ |  | (0.02 | )

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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 https://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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