| 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 | -- | -- | -- | -- | -- | -- | -- | -- | 8,791.00 | 8,858.00 |
| Operating revenues-Utility operations | 6,845.00 | 6,638.00 | 6,670.00 | 6,434.00 | 6,497.00 | 6,238.00 | 6,884.00 | 6,643.00 | -- | -- |
| Operating revenues-Non-utility operations | 5,332.00 | 6,031.00 | 7,542.00 | 6,173.00 | 4,133.00 | 4,099.00 | 5,417.00 | 3,018.00 | -- | -- |
| Total revenues | 12,177.00 | 12,669.00 | 14,212.00 | 12,607.00 | 10,630.00 | 10,337.00 | 12,301.00 | 9,661.00 | 8,791.00 | 8,858.00 |
| Fuel, purchased power and gas | -- | -- | -- | -- | -- | -- | -- | -- | 3,296.00 | 3,537.00 |
| Fuel, purchased power, and gas - non-utility | 4,141.00 | 5,053.00 | 6,630.00 | 5,283.00 | 3,562.00 | 3,481.00 | 4,615.00 | 2,544.00 | -- | -- |
| Fuel, purchased power, and gas - utility | 1,719.00 | 1,798.00 | 1,981.00 | 1,881.00 | 1,968.00 | 2,081.00 | 2,407.00 | 2,281.00 | -- | -- |
| Operation and maintenance | 2,443.00 | 2,419.00 | 2,451.00 | 2,270.00 | 2,261.00 | 2,214.00 | 2,204.00 | 2,208.00 | 2,892.00 | 2,612.00 |
| Depreciation, depletion and amortization | 1,443.00 | 1,263.00 | 1,124.00 | 1,030.00 | 976.00 | 852.00 | 1,145.00 | 1,094.00 | 995.00 | 977.00 |
| Taxes other than income | 410.00 | 414.00 | 405.00 | 391.00 | 370.00 | 364.00 | 352.00 | 340.00 | 332.00 | 310.00 |
| Merger and restructuring charges | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Asset (gains) and losses, reserves and impairments, net | (35.00) | (15.00) | (27.00) | (41.00) | (7.00) | (106.00) | 12.00 | 9.00 | 3.00 | (1.00) |
| Gain on sale of non-utility business | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Total Operating Expenses | 10,191.00 | 10,962.00 | 12,618.00 | 10,896.00 | 9,144.00 | 9,098.00 | 10,711.00 | 8,458.00 | 7,512.00 | 7,437.00 |
| Operating income (loss) | 1,986.00 | 1,707.00 | 1,594.00 | 1,711.00 | 1,486.00 | 1,239.00 | 1,590.00 | 1,203.00 | 1,279.00 | 1,421.00 |
| Interest expense | 720.00 | 641.00 | 559.00 | 536.00 | 472.00 | 450.00 | 429.00 | 436.00 | 440.00 | 488.00 |
| Interest income | 38.00 | 17.00 | 12.00 | 12.00 | 20.00 | 13.00 | 10.00 | 9.00 | 10.00 | 10.00 |
| Other income | 388.00 | 350.00 | 333.00 | 268.00 | 207.00 | 209.00 | 196.00 | 201.00 | -- | 117.00 |
| Other expenses | (104.00) | (70.00) | (127.00) | (103.00) | (95.00) | (61.00) | (92.00) | (55.00) | (62.00) | (69.00) |
| Other - net | -- | -- | -- | -- | -- | -- | -- | -- | 173.00 | -- |
| Non-operating retirement benefits, net | (50.00) | (39.00) | (37.00) | (65.00) | (41.00) | -- | -- | -- | -- | -- |
| Total Other (Income) and Deductions | -- | -- | -- | -- | 381.00 | 289.00 | 315.00 | 281.00 | 319.00 | 430.00 |
| Income (Loss) Before Income Taxes and Minority Interest | 1,538.00 | 1,324.00 | 1,216.00 | 1,287.00 | 1,105.00 | 950.00 | 1,275.00 | 922.00 | 960.00 | 991.00 |
| Provision for Income Taxes - Total | 167.00 | 152.00 | 98.00 | 175.00 | 271.00 | 230.00 | 364.00 | 254.00 | 286.00 | 268.00 |
| Minority Interest | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Income (Loss) from Continuing Operations | -- | -- | -- | -- | -- | -- | -- | -- | 674.00 | 723.00 |
| Income (Loss) from Discontinued Operations, net of tax | -- | -- | -- | -- | -- | -- | -- | -- | (56.00) | (3.00) |
| Cumulative Effect of Accounting Changes, net of tax | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Consolidated Net Income (Loss) | 1,371.00 | 1,172.00 | 1,118.00 | 1,112.00 | 834.00 | 720.00 | 911.00 | 668.00 | 618.00 | 720.00 |
| Net income attributable to noncontrolling interests | 3.00 | 3.00 | (2.00) | (22.00) | (34.00) | (7.00) | 6.00 | 7.00 | 8.00 | 9.00 |
| Net income | 1,368.00 | 1,169.00 | 1,120.00 | 1,134.00 | 868.00 | 727.00 | 905.00 | 661.00 | 610.00 | 711.00 |
| Income (loss)from continuing operations | -- | -- | -- | -- | -- | -- | -- | -- | 3.89 | 4.21 |
| EPS (Basic) : Discontinued operations | -- | -- | -- | -- | -- | -- | -- | -- | (0.33) | (0.02) |
| Cumulative effect of accounting changes | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Basic Earnings per Common Share | 7.09 | 6.32 | 6.18 | 6.32 | 4.84 | 4.05 | 5.11 | 3.76 | 3.56 | 4.19 |
| Income (loss) from continuing operations | -- | -- | -- | -- | -- | -- | -- | -- | 3.88 | 4.20 |
| EPS (Diluted) : Discontinued operations | -- | -- | -- | -- | -- | -- | -- | -- | (0.33) | (0.02) |
| Cumulative effect of accounting changes | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Diluted Earnings per Common Share | 7.08 | 6.31 | 6.17 | 6.32 | 4.83 | 4.05 | 5.10 | 3.76 | 3.55 | 4.18 |
| Average Common Shares Basic | 193.00 | 185.00 | 181.00 | 179.00 | 179.00 | 179.00 | 177.00 | 175.00 | 171.00 | 169.00 |
| Average Common Shares Diluted | 193.00 | 185.00 | 181.00 | 179.00 | 179.00 | 179.00 | 177.00 | 175.00 | 172.00 | 170.00 |