| Fiscal period | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 |
|---|
| Period End Date | 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 | 12/31/2012 |
|---|
| Revenue | -- | -- | -- | -- | -- | -- | -- | -- | 8,106.00 | 7,452.00 |
| Utility revenues | 8,042.00 | 7,049.00 | 7,202.00 | 6,199.00 | 5,603.00 | 5,440.00 | 5,448.00 | 6,116.00 | -- | -- |
| Non-utility revenues | 310.00 | 369.00 | 362.00 | 78.00 | 4,011.00 | 2,088.00 | 1,938.00 | 3,110.00 | -- | -- |
| Total Revenues | 8,352.00 | 7,418.00 | 7,564.00 | 6,277.00 | 9,614.00 | 7,528.00 | 7,386.00 | 9,226.00 | 8,106.00 | 7,452.00 |
| Fuel and cost of gas sold | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Natural gas | -- | -- | -- | -- | -- | -- | -- | -- | 3,908.00 | 2,873.00 |
| Utility natural gas | 2,127.00 | 1,488.00 | 1,762.00 | 1,464.00 | 1,109.00 | 983.00 | 1,264.00 | 1,878.00 | -- | -- |
| Non-utility natural gas | 208.00 | 257.00 | 257.00 | 40.00 | 3,785.00 | 1,983.00 | 1,838.00 | 3,043.00 | -- | -- |
| Purchased power | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Operation and maintenance | 2,810.00 | 2,744.00 | 2,775.00 | 2,271.00 | 2,157.00 | 2,029.00 | 2,007.00 | 1,969.00 | 1,847.00 | 1,874.00 |
| Depreciation and amortization | 1,316.00 | 1,189.00 | 1,225.00 | 1,230.00 | 1,036.00 | 1,126.00 | 970.00 | 1,013.00 | 954.00 | 1,050.00 |
| Goodwill impairment | -- | 185.00 | -- | -- | -- | -- | -- | -- | -- | 252.00 |
| Taxes other than income taxes | 528.00 | 516.00 | 474.00 | 404.00 | 391.00 | 384.00 | 374.00 | 388.00 | 387.00 | 365.00 |
| Impairment of Latin America assets | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Total Operating Expenses | 6,989.00 | 6,379.00 | 6,493.00 | 5,409.00 | 8,478.00 | 6,505.00 | 6,453.00 | -- | 7,096.00 | 6,414.00 |
| Operating income (loss) | 1,363.00 | 1,039.00 | 1,071.00 | 868.00 | 1,136.00 | 1,023.00 | 933.00 | 935.00 | 1,010.00 | 1,038.00 |
| Interest and other finance charges | 508.00 | 501.00 | 528.00 | 361.00 | 313.00 | 338.00 | 352.00 | 353.00 | 351.00 | 422.00 |
| Interest on transition bonds | 21.00 | 28.00 | 39.00 | 59.00 | 77.00 | 91.00 | 105.00 | 118.00 | 133.00 | 147.00 |
| Impairment of Latin America equity investments | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Step acquisition gain | -- | -- | -- | -- | -- | -- | -- | -- | -- | 136.00 |
| Gain / loss on sale | 8.00 | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Gain (loss) on indexed debt securities | 50.00 | (60.00) | (292.00) | (232.00) | 49.00 | (413.00) | 74.00 | (86.00) | (193.00) | (71.00) |
| Gain (Loss) on merketable Securities | (172.00) | 49.00 | 282.00 | (22.00) | 7.00 | 326.00 | (93.00) | 163.00 | 236.00 | 154.00 |
| Distribution on trust preferred securities | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Additional distribution to ZENS holders | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Distribution from AOL Time Warner litigation settlement | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Loss on disposal of Latin America equity investments | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Equity in earnings of unconsolidated affiliates | -- | -- | -- | 307.00 | 265.00 | 208.00 | (1,633.00) | 308.00 | 188.00 | 31.00 |
| Interest income | -- | -- | -- | 24.00 | -- | -- | -- | -- | -- | -- |
| Interest income from Securitization Bonds | -- | -- | -- | 4.00 | -- | -- | -- | -- | -- | -- |
| Other, net | 58.00 | 64.00 | 51.00 | 22.00 | (4.00) | (29.00) | 46.00 | 36.00 | 24.00 | 38.00 |
| Return on true-up balance | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Total Other Income (Expense) | (585.00) | (476.00) | (526.00) | (317.00) | -- | -- | (2,063.00) | (50.00) | (229.00) | (281.00) |
| Income Before Income Taxes | 778.00 | 563.00 | 545.00 | 551.00 | 1,063.00 | 686.00 | (1,130.00) | 885.00 | 781.00 | 757.00 |
| Income Tax Expense | 110.00 | 80.00 | 30.00 | 155.00 | (729.00) | 254.00 | (438.00) | 274.00 | 470.00 | 340.00 |
| Current federal | -- | -- | -- | -- | -- | -- | -- | -- | 91.00 | 0.00 |
| Current State | -- | -- | -- | -- | -- | -- | -- | -- | 23.00 | 12.00 |
| Deferred Federal | -- | -- | -- | -- | -- | -- | -- | -- | 370.00 | 280.00 |
| Deferred State | -- | -- | -- | -- | -- | -- | -- | -- | (14.00) | 48.00 |
| Foreign | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Minority Interest | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Income from continuing operations before extraordinary item | 668.00 | 483.00 | 515.00 | 396.00 | -- | -- | -- | -- | -- | -- |
| Loss on Disposal of Discontinued Operations | 818.00 | (1,256.00) | 276.00 | (28.00) | -- | -- | -- | -- | -- | -- |
| INCOME(LOSS) FROM DISCONTINUED OPERATIONS | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| INCOME (LOSS) BEFORE EXTRAORDINARY ITEM | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Extraordinary Item, net of tax | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| CUMULATIVE EFFECT OF ACCOUNTING CHANGE, NET OF TAX | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Income (loss) before preferred dividends | 1,486.00 | (773.00) | 791.00 | 368.00 | 1,792.00 | 432.00 | -- | -- | -- | -- |
| Preferred Dividends | 95.00 | 176.00 | 117.00 | 35.00 | -- | -- | -- | -- | -- | -- |
| Net Income (Loss) Available to Common Shareholders | 1,391.00 | (949.00) | 674.00 | 333.00 | 1,792.00 | 432.00 | (692.00) | 611.00 | 311.00 | 417.00 |
| Income From Continuing Operations Before Extraordinary | 0.97 | 0.58 | 0.79 | 0.80 | -- | -- | -- | -- | -- | -- |
| Income from Discontinued Operations, net of tax | 1.38 | (2.37) | 0.55 | (0.06) | -- | -- | -- | -- | -- | -- |
| Discontinued Operations(Basic) : Income from Reliant Resources | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Discontinued Operations(Basic) : Income (loss) from Other Operations | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Discontinued Operations(Basic) : Loss on disposal of Other Operations | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Cumulative Effect of Accounting Change, net of tax | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Extraordinary Item, net of tax | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Basic earnings per share | 2.35 | (1.79) | 1.34 | 0.74 | 4.16 | 1.00 | (1.61) | 1.42 | 0.73 | 0.98 |
| Income From Continuing Operations Before Extraordinary | 0.94 | 0.58 | 0.79 | 0.80 | -- | -- | -- | -- | -- | -- |
| Income from Discontinued Operations, net of tax | 1.34 | (2.37) | 0.54 | (0.06) | -- | -- | -- | -- | -- | -- |
| Discontinued Operations(Diluted) : Income from Reliant Resources | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Discontinued Operations(Diluted) : Income (loss) from Other Operations | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Discontinued Operations(Diluted) : Loss on disposal of Other Operations | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Cumulative Effect of Accounting Change, net of tax | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Extraordinary Item, net of tax | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Diluted earnings per share | 2.28 | (1.79) | 1.33 | 0.74 | 4.13 | 1.00 | (1.61) | 1.42 | 0.72 | 0.97 |
| Weighted Average-Basic Shares Outstanding | 593.00 | 531.00 | 502.00 | 449.00 | 431.00 | 431.00 | 430.00 | 430.00 | 428.00 | 427.19 |
| Weighted Average-Diluted Shares Outstanding | 610.00 | 531.00 | 505.00 | 452.00 | 434.00 | 434.00 | 430.00 | 432.00 | 431.00 | 429.79 |