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COMMON EQUITY (Tables) | 9 Months Ended
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Sep. 30, 2025
Equity [Abstract] |
Schedule of stock-based compensation awards granted | During the nine months ended September 30, 2025, the Compensation Committee of our Board of Directors awarded the following stock-based compensation to our directors, officers, and certain other key employees:
Award Type |  | Number of Awards
Stock options (1) |  | 231,024 |
Restricted shares (2) |  | 79,170 |
Performance units |  | 185,945 |
(1)Stock options awarded had a weighted-average exercise price of $94.55 and a weighted-average grant date fair value of $18.23 per option. (2)Restricted shares awarded had a weighted-average grant date fair value of $94.55 per share.
Schedule of Common Stock Outstanding Roll Forward | We had the following changes to our outstanding common stock during the three and nine months ended September 30, 2025 and 2024:
|  | Three Months Ended September 30 |  | Nine Months Ended September 30
|  | 2025 |  | 2024 |  | 2025 |  | 2024
Common stock shares outstanding at beginning of period |  | 321,866,395 |  |  | 316,079,401 |  |  | 317,680,855 |  |  | 315,434,531 |
Shares issued: |  |  |  |  |  |  |  |
At-the-market offering program |  | 3,075,416 |  |  | — |  |  | 6,579,783 |  |  | — |
Stock-based compensation |  | 196,997 |  |  | 137,936 |  |  | 587,111 |  |  | 300,602 |
401(k) |  | 70,200 |  |  | 38,400 |  |  | 185,300 |  |  | 285,000 |
Stock investment plan |  | 85,244 |  |  | 98,709 |  |  | 261,203 |  |  | 334,313 |
Common stock shares outstanding at end of period |  | 325,294,252 |  |  | 316,354,446 |  |  | 325,294,252 |  |  | 316,354,446 |
Schedule of Earnings Per Share, Basic and Diluted | The following table shows the computation of our basic and diluted EPS for the three and nine months ended September 30, 2025 and 2024:
|  | Three Months Ended September 30 |  | Nine Months Ended September 30
(in millions) |  | 2025 |  | 2024 |  | 2025 |  | 2024
Numerator: |  |  |  |  |  |  |  |
Net income attributed to common shareholders |  | $ | 271.3 |  |  | $ | 240.1 |  |  | $ | 1,240.9 |  |  | $ | 1,073.7 |
Denominator: |  |  |  |  |  |  |  |
Weighted average basic shares outstanding |  | 323.5 |  | 316.2 |  | 320.7 |  | 315.9
Dilutive effect of stock-based compensation awards |  | 0.5 |  |  | 0.3 |  |  | 0.5 |  |  | 0.3 |
Dilutive effect of convertible senior notes |  | 1.6 |  |  | — |  |  | 1.2 |  |  | — |
Weighted average diluted shares |  | 325.6 |  |  | 316.5 |  |  | 322.4 |  |  | 316.2 |
Basic EPS |  | $ | 0.84 |  |  | $ | 0.76 |  |  | $ | 3.87 |  |  | $ | 3.40 |
Diluted EPS |  | $ | 0.83 |  |  | $ | 0.76 |  |  | $ | 3.85 |  |  | $ | 3.40 |

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