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Earnings Per Share (Tables) | 9 Months Ended
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Sep. 30, 2025
Earnings Per Share [Abstract] |
Schedule of Earnings Per Share, Basic and Diluted | The following is a reconciliation of DTE Energy's basic and diluted income per share calculation:
| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2025 |  | 2024 |  | 2025 |  | 2024
| (In millions, except per share amounts)
Basic Earnings per Share |  |  |  |  |  |  |
Net Income Attributable to DTE Energy Company | $ | 419 |  |  | $ | 477 |  |  | $ | 1,093 |  |  | $ | 1,112 |
Less: Allocation of earnings to net restricted stock awards | 1 |  |  | 2 |  |  | 3 |  |  | 3 |
Net income available to common shareholders — basic | $ | 418 |  |  | $ | 475 |  |  | $ | 1,090 |  |  | $ | 1,109 |
Average number of common shares outstanding — basic | 207 |  |  | 207 |  |  | 207 |  |  | 207 |
Basic Earnings per Common Share | $ | 2.02 |  |  | $ | 2.30 |  |  | $ | 5.26 |  |  | $ | 5.37 |
Diluted Earnings per Share |  |  |  |  |  |  |
Net Income Attributable to DTE Energy Company | $ | 419 |  |  | $ | 477 |  |  | $ | 1,093 |  |  | $ | 1,112 |
Less: Allocation of earnings to net restricted stock awards | 1 |  |  | 2 |  |  | 3 |  |  | 3 |
Net income available to common shareholders — diluted | $ | 418 |  |  | $ | 475 |  |  | $ | 1,090 |  |  | $ | 1,109 |
Average number of common shares outstanding — diluted | 207 |  |  | 207 |  |  | 207 |  |  | 207 |
Diluted Earnings per Common Share | $ | 2.01 |  |  | $ | 2.30 |  |  | $ | 5.26 |  |  | $ | 5.36 |

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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 -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482662/260-10-50-1 + Details
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