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Earnings Per Share and Dividends (Tables) | 3 Months Ended
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Mar. 31, 2023
Earnings Per Share [Abstract] |
Reconciliation of Basic and Diluted Earnings Per Share | The following is a reconciliation of DT Midstream's basic and diluted earnings per share calculation:
| Three Months Ended |  |  |  |
| 2023 |  | 2022 |  |  |  |  |  |  |  |  |  |  |  |
| (millions, except per share amounts) |  |
Basic and Diluted Earnings per Common Share |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Income Attributable to DT Midstream | $ | 81 |  |  | $ | 81 |  |  |  |  |  |  |  |  |  |  |  |  |
Average number of common shares outstanding — basic | 96.8 |  |  | 96.7 |  |  |  |  |  |  |  |  |  |  |  |  |
Incremental shares attributable to: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Average dilutive restricted stock units and performance share awards | 0.6 |  |  | 0.3 |  |  |  |  |  |  |  |  |  |  |  |  |
Average number of common shares outstanding — diluted | 97.4 |  |  | 97.0 |  |  |  |  |  |  |  |  |  |  |  |  |
Basic Earnings per Common Share | $ | 0.84 |  |  | $ | 0.84 |  |  |  |  |  |  |  |  |  |  |  |  |
Diluted Earnings per Common Share | $ | 0.84 |  |  | $ | 0.84 |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Cash Dividends Declared | DT Midstream declared the following cash dividends:
Dividends Declared |  | Dividend Amount |  | Dividend Payment Date
(quarter ended) |  | (per-share) |  | (millions) |  |
2022 |  |  |  |  |  |
March 31 |  | $ | 0.64 |  |  | $ | 62 |  |  | April 2022
June 30 |  | $ | 0.64 |  |  | $ | 62 |  |  | July 2022
September 30 |  | $ | 0.64 |  |  | $ | 62 |  |  | October 2022
December 31 |  | $ | 0.64 |  |  | $ | 62 |  |  | January 2023
2023 |  |  |  |  |  |
March 31 |  | $ | 0.69 |  |  | $ | 67 |  |  | April 2023

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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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