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Earnings Per Share | 6 Months Ended
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Jun. 30, 2025
Earnings Per Share [Abstract] |
Earnings Per Share | EARNINGS PER SHARE Basic earnings per share is calculated by dividing net income, adjusted for income allocated to participating securities, by the weighted average number of common shares outstanding during the period. Diluted earnings per share reflect the dilution that would occur if any potentially dilutive instruments were exercised or converted into common shares. DTE Energy’s participating securities are restricted shares under the stock incentive program that contain rights to receive non-forfeitable dividends. Performance shares do not receive cash dividends; as such, these awards are not considered participating securities. The following is a reconciliation of DTE Energy's basic and diluted income per share calculation:
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2025 |  | 2024 |  | 2025 |  | 2024
| (In millions, except per share amounts)
Basic Earnings per Share |  |  |  |  |  |  |
Net Income Attributable to DTE Energy Company | $ | 229 |  |  | $ | 322 |  |  | $ | 674 |  |  | $ | 635 |
Less: Allocation of earnings to net restricted stock awards | 1 |  |  | — |  |  | 2 |  |  | 1 |
Net income available to common shareholders — basic | $ | 228 |  |  | $ | 322 |  |  | $ | 672 |  |  | $ | 634 |
Average number of common shares outstanding — basic | 207 |  |  | 207 |  |  | 207 |  |  | 206 |
Basic Earnings per Common Share | $ | 1.10 |  |  | $ | 1.56 |  |  | $ | 3.25 |  |  | $ | 3.07 |
Diluted Earnings per Share |  |  |  |  |  |  |
Net Income Attributable to DTE Energy Company | $ | 229 |  |  | $ | 322 |  |  | $ | 674 |  |  | $ | 635 |
Less: Allocation of earnings to net restricted stock awards | 1 |  |  | — |  |  | 2 |  |  | 1 |
Net income available to common shareholders — diluted | $ | 228 |  |  | $ | 322 |  |  | $ | 672 |  |  | $ | 634 |
Average number of common shares outstanding — basic | 207 |  |  | 207 |  |  | 207 |  |  | 206 |
Average performance share awards | — |  |  | — |  |  | — |  |  | 1 |
Average number of common shares outstanding — diluted | 207 |  |  | 207 |  |  | 207 |  |  | 207 |
Diluted Earnings per Common Share | $ | 1.10 |  |  | $ | 1.55 |  |  | $ | 3.24 |  |  | $ | 3.06 |

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