| Balance Sheets | 2024-12-31 | 2023-12-31 | 2022-12-31 | 2021-12-31 |
|---|---|---|---|---|
| Cash and cash equivalents | 7 | 25 | 10 | 8 |
| Accounts receivable - trade (less allowance for doubtful accounts) | 525 | 494 | 600 | 434 |
| Unbilled revenue | 346 | 319 | 446 | 301 |
| Advances to money pool | 96 | 106 | 54 | 85 |
| Inventories | 762 | 733 | 667 | 592 |
| Current regulatory assets | 366 | 365 | 354 | 319 |
| Investments in industrial development revenue bonds | - | 0 | 240 | - |
| Current collateral assets | - | 14 | 142 | - |
| Other current assets | 162 | 125 | 155 | 229 |
| Total current assets | 2,264 | 2,181 | 2,668 | 1,968 |
| Property and plant, at original cost-Depreciable Property Plant And Equipment | 50,790 | - | - | - |
| Accumulated depreciation and amortization | 16,495 | - | - | - |
| Union Electric Company | 268 | - | - | - |
| Ameren Illinois Company | 0 | - | - | - |
| Other Affiliated Entities And Intercompany Eliminations | 0 | - | - | - |
| Property and plant, at original cost-Nuclear Fuel | 268 | - | - | - |
| Property and plant, at original cost-Construction Work In Progress Other | 1,741 | - | - | - |
| Property, plant, and equipment, net | 36,304 | 33,776 | 31,262 | 29,261 |
| Nuclear decommissioning trust fund | 1,342 | 1,150 | 958 | 1,159 |
| Goodwill | 411 | 411 | 411 | 411 |
| Regulatory asset, noncurrent | 2,397 | 1,810 | 1,426 | 1,289 |
| Pension and other postretirement benefits | 757 | 581 | 411 | 756 |
| Other assets | 1,123 | 921 | 768 | 891 |
| Total investments and other assets | 6,030 | 4,873 | 3,974 | 4,506 |
| Total assets | 44,598 | 40,830 | 37,904 | 35,735 |
| Long-term debt, current maturities | 317 | 849 | 340 | 505 |
| Short-term debt | 1,143 | 536 | 1,070 | 545 |
| Accounts and wages payable | 1,059 | 1,136 | 1,159 | 1,095 |
| Interest accrued | 196 | - | - | 123 |
| Current regulatory liabilities | - | - | - | 113 |
| Customer deposits | 223 | 176 | - | - |
| Other current liabilities | 475 | 648 | 797 | 445 |
| Total current liabilities | 3,413 | 3,345 | 3,366 | 2,826 |
| Long-term debt, excluding current maturities | 17,262 | 15,121 | 13,685 | 12,562 |
| Plant-related | 4,940 | 4,646 | 4,416 | 4,129 |
| Regulatory assets and liabilities, net | 385 | 413 | 449 | 483 |
| Deferred employee benefit costs - asset | 27 | 26 | 70 | 88 |
| Tax carryforwards | 503 | 218 | 228 | 198 |
| Other - liabilities | 162 | 161 | 110 | 109 |
| Total net accumulated deferred income tax liabilities (assets) | 4,241 | 4,150 | 3,779 | 3,469 |
| Union Electric Company | - | 26 | 25 | 30 |
| Ameren Illinois Company | - | 0 | 0 | 0 |
| Other Affiliated Entities And Intercompany Eliminations | - | 0 | 0 | 0 |
| Accumulated deferred investment tax credits | 233 | 26 | 25 | 30 |
| Accumulated deferred income taxes and production and investment tax credits, net | 4,474 | 4,176 | 3,804 | 3,499 |
| Regulatory liabilities | 5,897 | 5,512 | 5,309 | 5,848 |
| Asset retirement obligations | 822 | 772 | 763 | 757 |
| Other deferred credits and liabilities | 487 | 426 | 340 | 414 |
| Total deferred credits and other liabilities | 11,680 | 10,886 | 10,216 | 10,518 |
| Common stock | 3 | 3 | 3 | 3 |
| Other paid-in capital, principally premium on common stock | 7,513 | 7,216 | 6,860 | 6,502 |
| Retained earnings | 4,604 | 4,136 | 3,646 | 3,182 |
| Accumulated other comprehensive loss | -6 | -6 | -1 | 13 |
| Total shareholders' equity | 12,114 | 11,349 | 10,508 | 9,700 |
| Noncontrolling interests | 129 | 129 | 129 | 129 |
| Total equity | 12,243 | - | - | 9,829 |
| Total liabilities and equity | 44,598 | 40,830 | 37,904 | 35,735 |
AMEREN CORP (AEE)
AMEREN CORP (AEE)