| Fiscal period | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 |
|---|
| Period End Date | 12/31/2022 | 12/31/2021 | 12/31/2020 | 12/31/2019 | 12/31/2018 | 12/31/2017 | 12/31/2016 | 12/31/2015 | 12/31/2014 | 12/31/2013 |
|---|
| Electric utility | 3,408.59 | 2,539.64 | 2,265.32 | 2,545.94 | 2,546.53 | 2,257.57 | 2,094.37 | 2,335.17 | 2,987.32 | 2,980.17 |
| Revenues: Other | 12.33 | 4.35 | 0.94 | 0.09 | 0.05 | 0.42 | 0.36 | 0.08 | (0.28) | 0.15 |
| Bank | 321.07 | 306.40 | 313.51 | 327.92 | 314.28 | 297.64 | 285.92 | 267.73 | 252.50 | 258.15 |
| Total revenues | 3,741.99 | 2,850.38 | 2,579.78 | 2,873.95 | 2,860.85 | 2,555.63 | 2,380.65 | 2,602.98 | 3,239.54 | 3,238.47 |
| Electric utility | 3,109.40 | 2,260.08 | 1,996.77 | 2,291.56 | 2,304.86 | 1,994.04 | 1,804.30 | 2,061.05 | 2,711.56 | 2,734.66 |
| Other | 31.97 | 26.04 | 19.81 | 17.36 | 16.59 | 17.25 | 22.82 | 35.46 | 22.19 | 17.30 |
| Bank | 219.55 | 178.20 | 251.70 | 217.01 | 206.04 | 198.10 | 197.70 | 183.92 | 173.20 | 169.00 |
| Total Operating Expenses | 3,360.91 | 2,464.31 | 2,268.28 | 2,525.93 | 2,527.49 | 2,209.39 | 2,024.82 | 2,280.43 | 2,906.94 | 2,920.96 |
| Total operating income | 381.07 | 386.07 | 311.49 | 348.02 | 333.36 | 346.23 | 355.84 | 322.55 | 332.60 | 317.51 |
| Interest expense - other than on deposit liabilities and other bank borrowings | 103.40 | 94.36 | 88.69 | 90.90 | 88.68 | 78.97 | 75.80 | 77.15 | 76.35 | 75.48 |
| Merger termination fee | -- | -- | -- | -- | -- | -- | 90.00 | -- | -- | -- |
| Gain on sale of investment securities | 8.12 | 0.53 | 9.28 | 0.65 | -- | -- | -- | -- | -- | -- |
| Preferred stock dividends of subsidiaries | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Preferred securities distributions of trust subsidiaries | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Allowance for equity funds used during construction | 10.57 | 9.53 | 8.77 | 11.99 | 10.88 | 12.48 | 8.33 | 6.93 | 6.77 | 5.56 |
| Allowance for borrowed funds used during construction | 3.42 | 3.25 | 2.99 | 4.45 | 4.87 | 4.78 | 3.14 | 2.46 | 2.58 | 2.25 |
| Retirement defined benefits expense-other than service costs | 4.41 | 5.85 | (3.21) | (2.81) | (5.96) | (7.94) | (7.66) | -- | -- | -- |
| Income from before income taxes | 304.20 | 310.86 | 240.62 | 271.41 | 254.46 | 276.58 | 373.84 | 254.79 | 265.60 | 249.84 |
| Provision for Income taxes | 61.17 | 62.81 | 40.91 | 51.64 | 50.80 | 109.39 | 123.70 | 93.02 | 95.58 | 86.24 |
| Deferred : Federal | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Deferred : State | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Current : Federal | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Current : State | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Deferred tax credits : Federal | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Deferred tax credits : State | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Income from continuing operations | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| LOSS FROM DISCONTINUED OPERATIONS | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Discontinued operations : Loss from operations | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Discontinued operations - loss on disposal, net of income tax benefits | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Consolidated Net Income (Loss) | 243.03 | 248.06 | 199.71 | 219.77 | 203.66 | 167.19 | -- | 161.77 | 170.02 | 163.60 |
| Less net income attributable to noncontrolling interest - preferred stock of subsidiaries | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Net Income (Loss) Attributable to Parent Company | -- | -- | -- | -- | -- | -- | 250.15 | -- | -- | -- |
| Preferred stock dividends of subsidiaries | 1.89 | 1.89 | 1.89 | 1.89 | 1.89 | 1.89 | 1.89 | 1.89 | 1.89 | 1.89 |
| Net income for common stock | 241.14 | 246.17 | 197.82 | 217.88 | 201.77 | 165.30 | 248.26 | 159.88 | 168.13 | 161.71 |
| EPS (Basic) : Continuing operations | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| EPS (Basic) : Discontinued operations | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| NET EARNINGS PER SHARE (BASIC) | 2.20 | 2.25 | 1.81 | 2.00 | 1.85 | 1.52 | 2.30 | 1.50 | 1.65 | 1.63 |
| EPS (Diluted) : Continuing operations | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| EPS (Diluted) : Discontinued operations | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| NET EARNINGS PER SHARE (DILUTED) | 2.20 | 2.25 | 1.81 | 1.99 | 1.85 | 1.52 | 2.29 | 1.50 | 1.63 | 1.62 |
| Weighted Average Shares Outstanding (Basic) | 109.43 | 109.28 | 109.14 | 108.95 | 108.86 | 108.75 | 108.10 | 106.42 | 101.97 | 98.97 |
| Weighted Average Shares Outstanding (Diluted) | 109.78 | 109.58 | 109.36 | 109.41 | 109.15 | 108.93 | 108.31 | 106.72 | 102.94 | 99.62 |