| Fiscal period | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 |
|---|
| Period End Date | 12/31/2023 | 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 |
|---|
| Operating revenue | 14,393.00 | 17,174.00 | 13,964.00 | 14,172.00 | 16,572.00 | 13,366.00 | 12,586.00 | 11,737.00 | 11,683.00 | 12,436.00 |
| Total Revenues | 14,393.00 | 17,174.00 | 13,964.00 | 14,172.00 | 16,572.00 | 13,366.00 | 12,586.00 | 11,737.00 | 11,683.00 | 12,436.00 |
| Purchased gas | 285.00 | 1,582.00 | 1,083.00 | 889.00 | 1,536.00 | 645.00 | 701.00 | 459.00 | 551.00 | 1,355.00 |
| Electric fuel and energy purchases | 3,935.00 | 3,711.00 | 2,368.00 | 2,243.00 | 2,938.00 | 2,814.00 | 2,301.00 | 2,333.00 | 2,725.00 | 3,400.00 |
| Purchased electric capacity | 55.00 | 59.00 | 70.00 | 53.00 | 88.00 | 122.00 | 6.00 | 99.00 | 330.00 | 361.00 |
| Other operations and maintenance | 3,160.00 | 3,984.00 | 3,734.00 | 3,685.00 | 4,428.00 | 3,458.00 | 2,875.00 | 3,064.00 | 2,595.00 | 2,765.00 |
| Depreciation, depletion and amortization | 2,580.00 | 2,830.00 | 2,478.00 | 2,332.00 | 2,655.00 | 2,000.00 | 1,905.00 | 1,559.00 | 1,395.00 | 1,292.00 |
| Restructuring and other acquisition | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Other taxes | (684.00) | (923.00) | (909.00) | (871.00) | (1,040.00) | (703.00) | (668.00) | (596.00) | (551.00) | (542.00) |
| Other energy-related commodity purchases | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Liquids, pipeline capacity and other purchases | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Gain on sale of U.S. non-Appalachian E&P business | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Gain on sale of Appalachian E&P operations | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Gains / loss on sales of assets | 27.00 | (426.00) | (108.00) | 61.00 | 162.00 | 380.00 | -- | -- | -- | -- |
| Impairment of assets and related charges | (307.00) | (2,063.00) | (195.00) | (2,105.00) | (1,535.00) | (403.00) | -- | -- | -- | -- |
| Total Operating Expenses | 10,979.00 | 15,578.00 | 10,945.00 | 12,117.00 | 14,058.00 | 9,765.00 | 8,456.00 | 8,110.00 | 8,147.00 | 9,715.00 |
| Operating income (loss) | 3,414.00 | 1,596.00 | 3,019.00 | 2,055.00 | 2,514.00 | 3,601.00 | 4,130.00 | 3,627.00 | 3,536.00 | 2,721.00 |
| Interest expense | -- | -- | -- | -- | -- | -- | -- | 1,010.00 | -- | -- |
| Interest expense - junior subordinated notes payable | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Interest and related charges | 1,674.00 | 966.00 | 1,354.00 | 1,377.00 | 1,773.00 | 1,493.00 | 1,205.00 | -- | 904.00 | 1,193.00 |
| Distributions - mandatorily redeemable trust preferred securities | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Subsidiary preferred dividends | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Earnings (loss) from equity method investees | -- | 299.00 | 276.00 | -- | -- | -- | -- | -- | -- | -- |
| Other income (loss) | 992.00 | 124.00 | 1,157.00 | 733.00 | 986.00 | 1,021.00 | 165.00 | 250.00 | 196.00 | 250.00 |
| Income from continuing operations before income tax expense | 2,732.00 | 1,053.00 | 3,098.00 | 1,411.00 | 1,727.00 | 3,129.00 | 3,090.00 | 2,867.00 | 2,828.00 | 1,778.00 |
| Current- Federal | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Deferred: Federal | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Current: State | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Deferred: State | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Income tax expense (benefit) | 575.00 | 68.00 | 425.00 | 83.00 | 351.00 | 580.00 | (30.00) | 655.00 | 905.00 | 452.00 |
| Deferred: Non-U.S | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Amortization of deferred investment tax credits-net | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Current: Non-U.S | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Minority Interest | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Income from continuing operations before cumulative effect of changes in accounting principles | 2,157.00 | 985.00 | 2,673.00 | 1,328.00 | -- | -- | -- | -- | 1,923.00 | 1,326.00 |
| Discontinued operations - Income (loss) from discontinued operations | (163.00) | 9.00 | 641.00 | (1,878.00) | -- | -- | -- | -- | -- | 0.00 |
| Extraordinary item | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Cumulative effect of changes in accounting principles | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Consolidated Net Income (Loss) | 1,994.00 | 994.00 | 3,314.00 | (550.00) | 1,376.00 | 2,549.00 | 3,120.00 | 2,212.00 | 1,923.00 | 1,326.00 |
| Noncontrolling Interests | -- | -- | 26.00 | (149.00) | 18.00 | 102.00 | 121.00 | 89.00 | 24.00 | 16.00 |
| Net income | 1,994.00 | 994.00 | 3,288.00 | (401.00) | 1,358.00 | 2,447.00 | 2,999.00 | 2,123.00 | 1,899.00 | 1,310.00 |
| Earnings Per Common Share-Basic: Income from continuing operations before cumulative effect of changes in accounting pr | 2.48 | 1.08 | 3.19 | 1.83 | -- | -- | -- | -- | 3.21 | 2.25 |
| Earnings Per Common Share-Basic: Income (loss) from discontinued operations | (0.19) | 0.01 | 0.79 | (2.39) | -- | -- | -- | -- | -- | 0.00 |
| Earnings Per Common Share-Basic: Cumulative effect of changes in accounting principles | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Earnings Per Common Share-Basic: Extraordinary item | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Earnings Per Common Share-Basic: Net income | 2.29 | 1.09 | 3.98 | (0.56) | 1.66 | 3.74 | 4.72 | 3.44 | 3.21 | 2.25 |
| Earnings Per Common Share-Diluted: Income from continuing operations before cumulative effect of changes in accounting | 2.48 | 1.08 | 3.19 | 1.82 | -- | -- | -- | -- | 3.20 | 2.24 |
| Earnings Per Common Share-Diluted: Income (loss) from discontinued operations | (0.19) | 0.01 | 0.79 | (2.39) | -- | -- | -- | -- | -- | 0.00 |
| Earnings Per Common Share-Diluted: Cumulative effect of changes in accounting principles | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Earnings Per Common Share-Diluted: Extraordinary item | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Earnings Per Common Share - Diluted Net income | 2.29 | 1.09 | 3.98 | (0.57) | 1.62 | 3.74 | 4.72 | 3.44 | 3.20 | 2.24 |
| Weighted Average Shares Outstanding (Basic) | 836.40 | 823.90 | 807.80 | 831.00 | 808.80 | 654.20 | 636.00 | 616.40 | 592.40 | 582.70 |
| Weighted Average Shares Outstanding (Diluted) | 836.50 | 824.80 | 808.50 | 831.00 | 808.90 | 654.90 | 636.00 | 617.10 | 593.70 | 584.50 |