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v3.24.3

Condensed Consolidated Statements Of Income - USD ($) shares in Thousands, $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Revenues: |  |  |  |
Electric utility | $ 999 | $ 995 | $ 2,579 | $ 2,562
Gas utility | 49 | 47 | 322 | 400
Other utility | 12 | 13 | 36 | 38
Non-utility | 21 | 22 | 68 | 66
Total revenues | 1,081 | 1,077 | 3,005 | 3,066
Operating expenses: |  |  |  |
Electric production fuel and purchased power | 192 | 231 | 493 | 553
Electric transmission service | 165 | 154 | 464 | 438
Cost of gas sold | 13 | 12 | 152 | 226
Asset valuation charge for IPL's Lansing Generating Station | 0 | 0 | 60 | 0
Other operation and maintenance | 174 | 160 | 510 | 499
Depreciation and amortization | 195 | 170 | 571 | 503
Taxes other than income taxes | 29 | 28 | 90 | 87
Total operating expenses | 768 | 755 | 2,340 | 2,306
Operating income | 313 | 322 | 665 | 760
Other (income) and deductions: |  |  |  |
Interest expense | 114 | 99 | 329 | 289
Equity income from unconsolidated investments, net | (14) | (14) | (44) | (45)
Allowance for funds used during construction | (20) | (28) | (58) | (71)
Other | 0 | 1 | 2 | 2
Total other (income) and deductions | 80 | 58 | 229 | 175
Income before income taxes | 233 | 264 | 436 | 585
Income tax expense (benefit) | (62) | 5 | (104) | 3
Net income attributable to common shareowners | $ 295 | $ 259 | $ 540 | $ 582
Weighted average number of common shares outstanding: |  |  |  |
Basic (in shares) | 256,600 | 253,500 | 256,400 | 252,100
Diluted (in shares) | 256,900 | 253,800 | 256,700 | 252,400
Earnings per weighted average common share attributable to Alliant Energy common shareowners: |  |  |  |
Basic (in dollars per share) | $ 1.15 | $ 1.02 | $ 2.11 | $ 2.31
Diluted (in dollars per share) | $ 1.15 | $ 1.02 | $ 2.10 | $ 2.31
IPL [Member] |  |  |  |
Revenues: |  |  |  |
Electric utility | $ 523 | $ 551 | $ 1,318 | $ 1,370
Gas utility | 27 | 31 | 175 | 224
Other utility | 11 | 12 | 34 | 36
Total revenues | 561 | 594 | 1,527 | 1,630
Operating expenses: |  |  |  |
Electric production fuel and purchased power | 79 | 99 | 195 | 213
Electric transmission service | 115 | 115 | 317 | 316
Cost of gas sold | 8 | 12 | 85 | 127
Asset valuation charge for IPL's Lansing Generating Station | 0 | 0 | 60 | 0
Other operation and maintenance | 96 | 84 | 281 | 264
Depreciation and amortization | 100 | 97 | 294 | 288
Taxes other than income taxes | 14 | 14 | 45 | 43
Total operating expenses | 412 | 421 | 1,277 | 1,251
Operating income | 149 | 173 | 250 | 379
Other (income) and deductions: |  |  |  |
Interest expense | 44 | 38 | 128 | 113
Allowance for funds used during construction | (13) | (6) | (34) | (13)
Other | (4) | 2 | (4) | 3
Total other (income) and deductions | 27 | 34 | 90 | 103
Income before income taxes | 122 | 139 | 160 | 276
Income tax expense (benefit) | (68) | (31) | (112) | (55)
Net income attributable to common shareowners | 190 | 170 | 272 | 331
WPL [Member] |  |  |  |
Revenues: |  |  |  |
Electric utility | 476 | 444 | 1,261 | 1,192
Gas utility | 22 | 16 | 147 | 176
Other utility | 1 | 1 | 2 | 2
Total revenues | 499 | 461 | 1,410 | 1,370
Operating expenses: |  |  |  |
Electric production fuel and purchased power | 112 | 132 | 298 | 341
Electric transmission service | 49 | 39 | 148 | 122
Cost of gas sold | 5 | 0 | 67 | 99
Other operation and maintenance | 72 | 64 | 200 | 197
Depreciation and amortization | 91 | 71 | 269 | 208
Taxes other than income taxes | 14 | 13 | 41 | 40
Total operating expenses | 343 | 319 | 1,023 | 1,007
Operating income | 156 | 142 | 387 | 363
Other (income) and deductions: |  |  |  |
Interest expense | 42 | 38 | 124 | 110
Allowance for funds used during construction | (7) | (22) | (24) | (58)
Other | 3 | (2) | 4 | (3)
Total other (income) and deductions | 38 | 14 | 104 | 49
Income before income taxes | 118 | 128 | 283 | 314
Income tax expense (benefit) | 4 | 21 | 13 | 47
Net income attributable to common shareowners | $ 114 | $ 107 | $ 270 | $ 267

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