| Fiscal period | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|
| Period End Date | 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 | 12/31/2015 |
|---|
| Retail revenues | 17,790.00 | 16,343.00 | 18,197.00 | 14,852.00 | 13,643.00 | 14,084.00 | 15,222.00 | 15,330.00 | 15,234.00 | 14,987.00 |
| Wholesale revenues | 2,431.00 | 2,467.00 | 3,641.00 | 2,455.00 | 1,945.00 | 2,152.00 | 2,516.00 | 2,426.00 | 1,926.00 | 1,798.00 |
| Natural Gas revenues | 4,456.00 | 4,702.00 | 5,962.00 | 4,380.00 | 3,434.00 | 3,792.00 | 3,854.00 | 3,791.00 | 1,596.00 | -- |
| Other electric revenues | 896.00 | 792.00 | 747.00 | 718.00 | 672.00 | 636.00 | 664.00 | 681.00 | 698.00 | 657.00 |
| Other revenues | 1,151.00 | 949.00 | 732.00 | 708.00 | 681.00 | 755.00 | 1,239.00 | 803.00 | 442.00 | 47.00 |
| Total Revenues | 26,724.00 | 25,253.00 | 29,279.00 | 23,113.00 | 20,375.00 | 21,419.00 | 23,495.00 | 23,031.00 | 19,896.00 | 17,489.00 |
| Cost of Other Sales | 668.00 | 560.00 | 396.00 | 357.00 | 327.00 | 435.00 | 806.00 | 513.00 | 260.00 | -- |
| Cost of Natural Gas | 1,196.00 | 1,644.00 | 3,004.00 | 1,619.00 | 972.00 | 1,319.00 | 1,539.00 | 1,601.00 | 613.00 | -- |
| Fuel | 4,096.00 | 4,365.00 | 6,835.00 | 4,010.00 | 2,967.00 | 3,622.00 | 4,637.00 | 4,400.00 | 4,361.00 | 4,750.00 |
| Purchased power | 883.00 | 883.00 | 1,593.00 | 978.00 | 799.00 | 816.00 | 971.00 | 863.00 | 750.00 | 645.00 |
| Other operations and maintenance | 6,539.00 | 6,093.00 | 6,630.00 | 6,088.00 | 5,413.00 | 5,600.00 | 5,889.00 | 5,481.00 | 5,240.00 | -- |
| Maintenance | -- | -- | -- | -- | -- | -- | -- | -- | -- | 4,416.00 |
| Depreciation and amortization | 4,755.00 | 4,525.00 | 3,663.00 | 3,565.00 | 3,518.00 | 3,038.00 | 3,131.00 | 3,010.00 | 2,502.00 | 2,034.00 |
| Taxes other than income taxes | 1,540.00 | 1,425.00 | 1,411.00 | 1,290.00 | 1,234.00 | 1,230.00 | 1,315.00 | 1,250.00 | 1,113.00 | 997.00 |
| Impairment charges | -- | -- | (251.00) | (2.00) | -- | (168.00) | (210.00) | -- | -- | -- |
| MC Asset Recovery litigation settlement | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Estimated Loss on Kemper IGCC | -- | -- | -- | -- | -- | (24.00) | (1,097.00) | (3,362.00) | (428.00) | (365.00) |
| Gain on dispositions, net | -- | -- | 57.00 | 186.00 | 65.00 | 2,569.00 | 291.00 | -- | -- | -- |
| Estimated Gain / Loss on Plant Vogtle Units 3 and 4 | 21.00 | 68.00 | (183.00) | (1,692.00) | (325.00) | -- | -- | -- | -- | -- |
| Total Operating Expenses | 19,656.00 | 19,427.00 | 23,909.00 | 19,415.00 | 15,490.00 | 13,683.00 | 19,304.00 | 20,480.00 | 15,267.00 | 13,207.00 |
| Operating income (loss) | 7,068.00 | 5,826.00 | 5,370.00 | 3,698.00 | 4,885.00 | 7,736.00 | 4,191.00 | 2,551.00 | 4,629.00 | 4,282.00 |
| Interest expense, net of amounts capitalized | 2,743.00 | 2,446.00 | 2,022.00 | 1,837.00 | 1,821.00 | 1,736.00 | 1,842.00 | 1,694.00 | 1,317.00 | 840.00 |
| Interest expense to affiliate trusts | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Impairment loss on equity method investments | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Impairment of leveraged lease | -- | -- | -- | 7.00 | 206.00 | -- | -- | -- | -- | -- |
| Other Income and (Expense)- Gain on disposition of lease termination | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Preferred and preference dividends of subsidiaries | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Distributions on mandatorily redeemable preferred securities | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Earnings from equity method investments | 139.00 | 144.00 | 151.00 | 76.00 | 153.00 | 162.00 | 148.00 | 106.00 | -- | -- |
| Equity in (losses) income of unconsolidated subsidiaries | -- | -- | -- | -- | -- | -- | -- | -- | 59.00 | -- |
| Interest income | -- | -- | -- | -- | -- | -- | -- | -- | -- | 23.00 |
| Allowance for equity funds used during construction | 235.00 | 268.00 | 224.00 | 190.00 | 149.00 | 128.00 | 138.00 | 160.00 | 202.00 | 226.00 |
| Other income (expense), net | 530.00 | 553.00 | 500.00 | 456.00 | 336.00 | 252.00 | 114.00 | (55.00) | (93.00) | (62.00) |
| Leveraged lease income (losses) | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Other Income and (Expense)- Loss on extinguishment of debt | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Total other income and (expense) | (1,839.00) | (1,481.00) | (1,147.00) | (1,122.00) | (1,389.00) | (1,194.00) | (1,442.00) | (1,483.00) | (1,149.00) | (653.00) |
| Earnings Before Income Taxes | 5,229.00 | 4,345.00 | 4,223.00 | 2,576.00 | 3,496.00 | 6,542.00 | 2,749.00 | 1,068.00 | 3,480.00 | 3,629.00 |
| Provision for Income taxes | 969.00 | 496.00 | 795.00 | 267.00 | 393.00 | 1,798.00 | 449.00 | 142.00 | 951.00 | 1,194.00 |
| Federal- Current | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Federal- Deferred | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| State- Current | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| State- Deferred | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Earnings From Continuing Operations | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Earnings from discontinued operations, net of income taxes | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Earnings From Continuing Operations Before Cumulative Effect of Accounting Change | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Cumulative effect of accounting change- less income taxes | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Consolidated Net income | 4,260.00 | 3,849.00 | 3,428.00 | 2,309.00 | 3,103.00 | 4,744.00 | 2,300.00 | 926.00 | 2,529.00 | 2,435.00 |
| Net income attributable to noncontrolling interest | (141.00) | (127.00) | (107.00) | (99.00) | (31.00) | (10.00) | 58.00 | 46.00 | 36.00 | 14.00 |
| Consolidated Net Income before Preferred Dividends & Other Preferred Stock Adjustments | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Dividends on Preferred and Preference Stock of Subsidiaries | -- | -- | 11.00 | 15.00 | 15.00 | 15.00 | 16.00 | 38.00 | 45.00 | 54.00 |
| Consolidated Net Income After Dividends on Preferred and Preference Stock of Subsidiaries | 4,401.00 | 3,976.00 | 3,524.00 | 2,393.00 | 3,119.00 | 4,739.00 | 2,226.00 | 842.00 | 2,448.00 | 2,367.00 |
| Basic earnings per share from continuing operations | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Earnings per share (EPS)- Basic EPS | 4.02 | 3.64 | 3.28 | 2.26 | 2.95 | 4.53 | 2.18 | 0.84 | 2.57 | 2.60 |
| Diluted earnings per share from continuing operations | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Earnings per share (EPS)- Diluted EPS | 3.99 | 3.62 | 3.26 | 2.24 | 2.93 | 4.50 | 2.17 | 0.84 | 2.55 | 2.59 |
| Average basic number of shares of common stock outstanding | 1,096.00 | 1,092.00 | 1,075.00 | 1,061.00 | 1,058.00 | 1,046.00 | 1,020.00 | 1,000.00 | 951.00 | 910.00 |
| Average diluted number of shares of common stock outstanding | 1,102.00 | 1,098.00 | 1,081.00 | 1,068.00 | 1,065.00 | 1,054.00 | 1,025.00 | 1,008.00 | 958.00 | 914.00 |