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Common Equity (Common Share Activity) (Details) - shares | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Common Stock Oustanding [Roll Forward] |  |  |
Shares outstanding, January 1 (in shares) | 250,474,529 | 249,868,415 | 245,022,800
Common stock issued during the period, Shareowner Direct Plan (in shares) | 437,669 | 492,565 | 472,283
Common stock issued during the period, Equity-based compensation plans (in shares) | 222,768 | 113,549 | 98,205
Shares outstanding, December 31 (in shares) | 251,134,966 | 250,474,529 | 249,868,415
Equity Forward Agreements [Member] |  |  |
Common Stock Oustanding [Roll Forward] |  |  |
Common stock issued during the period (in shares) | 0 | 0 | 4,275,127

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