| Fiscal period | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 |
|---|
| Period End Date | 12/31/2020 | 12/31/2019 | 12/31/2018 | 12/31/2017 | 12/31/2016 | 12/31/2015 | 12/31/2014 | 12/31/2013 | 12/31/2012 | 12/31/2011 |
|---|
| Operating Revenues | 3,777.00 | 3,610.00 | 3,440.00 | 3,357.00 | 3,302.00 | 3,159.00 | 3,011.00 | 2,879.00 | 2,853.93 | 2,666.24 |
| Total Revenues | 3,777.00 | 3,610.00 | 3,440.00 | 3,357.00 | 3,302.00 | 3,159.00 | 3,011.00 | 2,879.00 | 2,853.93 | 2,666.24 |
| Operation and maintenance | 1,622.00 | 1,544.00 | 1,479.00 | 1,369.00 | 1,499.00 | 1,404.00 | 1,350.00 | 1,289.00 | 1,329.50 | 1,301.79 |
| Depreciation and amortization | 604.00 | 582.00 | 545.00 | 492.00 | 470.00 | 440.00 | 424.00 | 407.00 | 380.40 | 351.82 |
| Amortization of debt expense | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| General taxes | 303.00 | 280.00 | 277.00 | 259.00 | 258.00 | 243.00 | 236.00 | 234.00 | 220.76 | 210.48 |
| (Gain) loss on sales of assets | -- | (34.00) | 20.00 | 16.00 | 10.00 | 3.00 | 2.00 | (1.00) | 0.84 | 0.99 |
| Impairment charge | -- | -- | (57.00) | -- | -- | -- | -- | -- | -- | -- |
| Total Operating Expenses | 2,529.00 | 2,440.00 | 2,338.00 | 2,104.00 | 2,217.00 | 2,084.00 | 2,008.00 | 1,931.00 | 1,929.82 | 1,863.10 |
| Operating income (loss) | 1,248.00 | 1,170.00 | 1,102.00 | 1,253.00 | 1,085.00 | 1,075.00 | 1,003.00 | 948.00 | 924.10 | 803.14 |
| Interest, net | 395.00 | 382.00 | 350.00 | 342.00 | 325.00 | 308.00 | 299.00 | 308.00 | 310.79 | 312.42 |
| Amortization of debt expense | -- | -- | -- | -- | -- | -- | -- | -- | 5.36 | 5.06 |
| Preferred dividends of subsidiaries | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Allowance for other funds used during construction | -- | -- | -- | -- | -- | -- | -- | -- | 15.59 | 13.13 |
| Allowance for borrowed funds used during construction | -- | -- | -- | -- | -- | -- | -- | -- | 7.77 | 5.92 |
| Other, net | 22.00 | 29.00 | 15.00 | 17.00 | 15.00 | 15.00 | 6.00 | 9.00 | (0.93) | (1.04) |
| Gain (loss) on extinguishment of debt | -- | -- | -- | (7.00) | -- | -- | -- | (41.00) | -- | 0.00 |
| Non-operating benefit costs, net | 49.00 | 16.00 | 20.00 | (9.00) | (5.00) | -- | -- | -- | -- | -- |
| Income (loss) from continuing operations before income taxes | 924.00 | 833.00 | 787.00 | 912.00 | 770.00 | 782.00 | 710.00 | 608.00 | 630.39 | 503.68 |
| Provision for income taxes | 215.00 | 212.00 | 222.00 | 486.00 | 302.00 | 306.00 | 280.00 | 237.00 | 256.79 | 198.75 |
| Amortization of deferred investment tax credits | (1.00) | (1.00) | (1.00) | (1.00) | (1.00) | (1.00) | (1.00) | (2.00) | (1.52) | (1.54) |
| State income taxes : Current | 8.00 | 4.00 | 26.00 | 25.00 | 20.00 | 10.00 | 11.00 | 7.00 | 26.60 | (7.44) |
| State income taxes : Deferred - Current | 49.00 | 54.00 | 33.00 | 50.00 | 24.00 | 32.00 | 31.00 | -- | (0.28) | (0.17) |
| State income taxes : Deferred - Non-current | -- | -- | -- | -- | -- | -- | -- | 27.00 | 24.26 | 44.58 |
| Federal income taxes : Current | -- | -- | 1.00 | (1.00) | 1.00 | -- | 15.00 | (20.00) | 31.48 | 12.24 |
| Federal income taxes : Deferred - Current | 159.00 | 155.00 | 163.00 | 413.00 | 258.00 | 265.00 | 224.00 | -- | (2.03) | (0.31) |
| Federal income taxes : Deferred - Non-current | -- | -- | -- | -- | -- | -- | -- | -- | 178.27 | 151.40 |
| Income (Loss) from Continuing Operations | -- | -- | -- | -- | -- | -- | 430.00 | 371.00 | 373.60 | 304.93 |
| Income (Loss) from Discontinued Operations, Net of Tax | -- | -- | -- | -- | -- | -- | (7.00) | (2.00) | (15.53) | 4.68 |
| Consolidated Net income | 709.00 | 621.00 | 565.00 | 426.00 | 468.00 | -- | -- | -- | -- | -- |
| Net loss attributable to noncontrolling interest | -- | -- | (2.00) | -- | -- | -- | -- | -- | -- | -- |
| Net Income (Loss) available to limited partners shareholders | 709.00 | 621.00 | 567.00 | 426.00 | 468.00 | 476.00 | 423.00 | 369.00 | 358.07 | 309.61 |
| Income (loss) from continuing operations | -- | -- | -- | -- | -- | -- | 2.40 | 2.08 | 2.12 | 1.74 |
| Income (loss) from discontinued operations, net of tax | -- | -- | -- | -- | -- | -- | (0.04) | (0.01) | (0.09) | 0.03 |
| NET EARNINGS PER SHARE (BASIC) | 3.91 | 3.44 | 3.16 | 2.39 | 2.63 | 2.66 | 2.36 | 2.08 | 2.03 | 1.76 |
| Income (loss) from continuing operations | -- | -- | -- | -- | -- | -- | 2.39 | 2.07 | 2.10 | 1.73 |
| Income (loss) from discontinued operations, net of tax | -- | -- | -- | -- | -- | -- | (0.04) | (0.01) | (0.09) | 0.03 |
| NET EARNINGS PER SHARE (DILUTED) | 3.91 | 3.43 | 3.15 | 2.38 | 2.62 | 2.64 | 2.35 | 2.06 | 2.01 | 1.75 |
| Weighted Average Shares Outstanding (Basic) | 181.00 | 181.00 | 180.00 | 178.00 | 178.00 | 179.00 | 179.00 | 178.00 | 176.45 | 175.48 |
| Weighted Average Shares Outstanding (Diluted) | 182.00 | 181.00 | 180.00 | 179.00 | 179.00 | 180.00 | 180.00 | 179.00 | 177.67 | 176.53 |