| Fiscal period | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 |
|---|
| Period End Date | 12/31/2025 | 12/31/2024 | 12/31/2023 | 12/31/2022 | 12/31/2021 | 12/31/2020 | 12/31/2019 | 12/31/2018 | 12/31/2017 | 12/31/2016 |
|---|
| Operating revenue | 16,506.00 | 14,459.00 | 14,393.00 | 17,174.00 | 13,964.00 | 14,172.00 | 16,572.00 | 13,366.00 | 12,586.00 | 11,737.00 |
| Total Revenues | 16,506.00 | 14,459.00 | 14,393.00 | 17,174.00 | 13,964.00 | 14,172.00 | 16,572.00 | 13,366.00 | 12,586.00 | 11,737.00 |
| Purchased gas | 297.00 | 260.00 | 285.00 | 1,582.00 | 1,083.00 | 889.00 | 1,536.00 | 645.00 | 701.00 | 459.00 |
| Electric fuel and energy purchases | 4,489.00 | 3,614.00 | 3,935.00 | 3,711.00 | 2,368.00 | 2,243.00 | 2,938.00 | 2,814.00 | 2,301.00 | 2,333.00 |
| Purchased electric capacity | 82.00 | 74.00 | 55.00 | 59.00 | 70.00 | 53.00 | 88.00 | 122.00 | 6.00 | 99.00 |
| Other operations and maintenance | 3,547.00 | 3,589.00 | 3,160.00 | 3,984.00 | 3,734.00 | 3,685.00 | 4,428.00 | 3,458.00 | 2,875.00 | 3,064.00 |
| Depreciation, depletion and amortization | 2,387.00 | 2,345.00 | 2,580.00 | 2,830.00 | 2,478.00 | 2,332.00 | 2,655.00 | 2,000.00 | 1,905.00 | 1,559.00 |
| Restructuring and other acquisition | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Other taxes | (773.00) | (731.00) | (684.00) | (923.00) | (909.00) | (871.00) | (1,040.00) | (703.00) | (668.00) | (596.00) |
| 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 | -- | 1.00 | 27.00 | (426.00) | (108.00) | 61.00 | 162.00 | 380.00 | -- | -- |
| Impairment of assets and related charges | (517.00) | (600.00) | (307.00) | (2,063.00) | (195.00) | (2,105.00) | (1,535.00) | (403.00) | -- | -- |
| Total Operating Expenses | 12,092.00 | 11,212.00 | 10,979.00 | 15,578.00 | 10,945.00 | 12,117.00 | 14,058.00 | 9,765.00 | 8,456.00 | 8,110.00 |
| Operating income (loss) | 4,414.00 | 3,247.00 | 3,414.00 | 1,596.00 | 3,019.00 | 2,055.00 | 2,514.00 | 3,601.00 | 4,130.00 | 3,627.00 |
| Interest expense | -- | -- | -- | -- | -- | -- | -- | -- | -- | 1,010.00 |
| Interest expense - junior subordinated notes payable | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Interest and related charges | 2,022.00 | 1,887.00 | 1,674.00 | 966.00 | 1,354.00 | 1,377.00 | 1,773.00 | 1,493.00 | 1,205.00 | -- |
| Distributions - mandatorily redeemable trust preferred securities | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Subsidiary preferred dividends | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Earnings (loss) from equity method investees | -- | -- | -- | 299.00 | 276.00 | -- | -- | -- | -- | -- |
| Other income (loss) | 1,219.00 | 822.00 | 992.00 | 124.00 | 1,157.00 | 733.00 | 986.00 | 1,021.00 | 165.00 | 250.00 |
| Income from continuing operations before income tax expense | 3,611.00 | 2,182.00 | 2,732.00 | 1,053.00 | 3,098.00 | 1,411.00 | 1,727.00 | 3,129.00 | 3,090.00 | 2,867.00 |
| Current- Federal | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Deferred: Federal | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Current: State | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Deferred: State | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Income tax expense (benefit) | 532.00 | 308.00 | 575.00 | 68.00 | 425.00 | 83.00 | 351.00 | 580.00 | (30.00) | 655.00 |
| 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 | 3,079.00 | 1,874.00 | 2,157.00 | 985.00 | 2,673.00 | 1,328.00 | -- | -- | -- | -- |
| Discontinued operations - Income (loss) from discontinued operations | (14.00) | 197.00 | (163.00) | 9.00 | 641.00 | (1,878.00) | -- | -- | -- | -- |
| Extraordinary item | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Cumulative effect of changes in accounting principles | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Consolidated Net Income (Loss) | 3,065.00 | 2,071.00 | 1,994.00 | 994.00 | 3,314.00 | (550.00) | 1,376.00 | 2,549.00 | 3,120.00 | 2,212.00 |
| Noncontrolling Interests | 67.00 | (53.00) | -- | -- | 26.00 | (149.00) | 18.00 | 102.00 | 121.00 | 89.00 |
| Net income | 2,998.00 | 2,124.00 | 1,994.00 | 994.00 | 3,288.00 | (401.00) | 1,358.00 | 2,447.00 | 2,999.00 | 2,123.00 |
| Earnings Per Common Share-Basic: Income from continuing operations before cumulative effect of changes in accounting pr | 3.48 | 2.20 | 2.48 | 1.08 | 3.19 | 1.83 | -- | -- | -- | -- |
| Earnings Per Common Share-Basic: Income (loss) from discontinued operations | (0.02) | 0.24 | (0.19) | 0.01 | 0.79 | (2.39) | -- | -- | -- | -- |
| 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 | 3.46 | 2.44 | 2.29 | 1.09 | 3.98 | (0.56) | 1.66 | 3.74 | 4.72 | 3.44 |
| Earnings Per Common Share-Diluted: Income from continuing operations before cumulative effect of changes in accounting | 3.47 | 2.20 | 2.48 | 1.08 | 3.19 | 1.82 | -- | -- | -- | -- |
| Earnings Per Common Share-Diluted: Income (loss) from discontinued operations | (0.02) | 0.24 | (0.19) | 0.01 | 0.79 | (2.39) | -- | -- | -- | -- |
| 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 | 3.45 | 2.44 | 2.29 | 1.09 | 3.98 | (0.57) | 1.62 | 3.74 | 4.72 | 3.44 |
| Weighted Average Shares Outstanding (Basic) | 854.10 | 839.20 | 836.40 | 823.90 | 807.80 | 831.00 | 808.80 | 654.20 | 636.00 | 616.40 |
| Weighted Average Shares Outstanding (Diluted) | 855.30 | 839.40 | 836.50 | 824.80 | 808.50 | 831.00 | 808.90 | 654.90 | 636.00 | 617.10 |