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Consolidated Statement of Income (Loss) and Comprehensive Income - USD ($) shares in Millions, $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Operating Revenues: |  |  |  |
Total operating revenues | $ 1,693 | $ 1,760 | $ 3,509 | $ 3,822
Operating Expenses: |  |  |  |
Fuel and purchased power | 327 | 480 | 655 | 1,088
Natural gas purchased for resale | 33 | 42 | 184 | 250
Other operations and maintenance | 465 | 450 | 935 | 898
Depreciation and amortization | 376 | 335 | 737 | 655
Taxes other than income taxes | 131 | 124 | 266 | 251
Total operating expenses | 1,332 | 1,431 | 2,777 | 3,142
Operating Income | 361 | 329 | 732 | 680
Other Income, Net | 103 | 82 | 192 | 160
Interest Charges | 165 | 134 | 319 | 261
Income Before Income Taxes | 299 | 277 | 605 | 579
Income Taxes | 39 | 38 | 83 | 75
Net Income | 260 | 239 | 522 | 504
Less: Net Income Attributable to Noncontrolling Interests | 2 | 2 | 3 | 3
Net Income Attributable to Ameren Common Shareholders | 258 | 237 | 519 | 501
Pension and other postretirement benefit plan activity, net of income taxes (benefit) | (2) | (1) | (3) | (2)
Comprehensive Income | 258 | 238 | 519 | 502
Less: Comprehensive Income Attributable to Noncontrolling Interests | 2 | 2 | 3 | 3
Comprehensive Income Attributable to Ameren Common Shareholders | $ 256 | $ 236 | $ 516 | $ 499
Earnings Per Share, Basic [Abstract] |  |  |  |
Earnings per Common Share – Basic | $ 0.97 | $ 0.90 | $ 1.95 | $ 1.91
Earnings Per Share, Diluted [Abstract] |  |  |  |
Earnings per Common Share – Diluted | $ 0.97 | $ 0.90 | $ 1.95 | $ 1.90
Weighted-average Common Shares Outstanding – Basic | 266.7 | 262.6 | 266.5 | 262.4
Weighted-average Common Shares Outstanding – Diluted | 266.8 | 263.2 | 266.8 | 263.2
Electric |  |  |  |
Operating Revenues: |  |  |  |
Total operating revenues | $ 1,521 | $ 1,585 | $ 2,885 | $ 3,175
Natural gas |  |  |  |
Operating Revenues: |  |  |  |
Total operating revenues | 172 | 175 | 624 | 647
Union Electric Company |  |  |  |
Operating Revenues: |  |  |  |
Total operating revenues | 888 | 941 | 1,663 | 1,864
Operating Expenses: |  |  |  |
Fuel and purchased power | 189 | 289 | 355 | 610
Natural gas purchased for resale | 9 | 9 | 37 | 56
Other operations and maintenance | 247 | 237 | 501 | 476
Depreciation and amortization | 208 | 186 | 403 | 362
Taxes other than income taxes | 91 | 88 | 178 | 168
Total operating expenses | 744 | 809 | 1,474 | 1,672
Operating Income | 144 | 132 | 189 | 192
Other Income, Net | 49 | 22 | 93 | 41
Interest Charges | 63 | 52 | 125 | 103
Income Before Income Taxes | 130 | 102 | 157 | 130
Income Taxes | 1 | (1) | 2 | (2)
Net Income | 129 | 103 | 155 | 132
Preferred Stock Dividends | 1 | 1 | 2 | 2
Net Income Attributable to Parent | 128 | 102 | 153 | 130
Union Electric Company | Electric |  |  |  |
Operating Revenues: |  |  |  |
Total operating revenues | 864 | 918 | 1,578 | 1,759
Union Electric Company | Natural gas |  |  |  |
Operating Revenues: |  |  |  |
Total operating revenues | 24 | 23 | 85 | 105
Ameren Illinois Company |  |  |  |
Operating Revenues: |  |  |  |
Total operating revenues | 766 | 779 | 1,766 | 1,880
Operating Expenses: |  |  |  |
Purchased Power | 141 | 192 | 305 | 479
Natural gas purchased for resale | 24 | 33 | 147 | 194
Other operations and maintenance | 224 | 201 | 434 | 403
Depreciation and amortization | 154 | 138 | 307 | 271
Taxes other than income taxes | 35 | 32 | 79 | 74
Total operating expenses | 578 | 596 | 1,272 | 1,421
Operating Income | 188 | 183 | 494 | 459
Other Income, Net | 37 | 41 | 68 | 78
Interest Charges | 60 | 50 | 115 | 97
Income Before Income Taxes | 165 | 174 | 447 | 440
Income Taxes | 40 | 44 | 107 | 112
Net Income | 125 | 130 | 340 | 328
Preferred Stock Dividends | 1 | 1 | 1 | 1
Net Income Attributable to Parent | 124 | 129 | 339 | 327
Ameren Illinois Company | Electric |  |  |  |
Operating Revenues: |  |  |  |
Total operating revenues | 618 | 627 | 1,227 | 1,337
Ameren Illinois Company | Natural gas |  |  |  |
Operating Revenues: |  |  |  |
Total operating revenues | $ 148 | $ 152 | $ 539 | $ 543

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