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v3.10.0.1

Consolidated Statements Of Income - USD ($) shares in Millions, $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Revenues: |  |  |
Electric utility | $ 3,000.3 | $ 2,894.7 | $ 2,875.5
Gas utility | 446.6 | 400.9 | 355.4
Other utility | 48.0 | 47.5 | 48.6
Non-utility | 39.6 | 39.1 | 40.5
Total revenues | 3,534.5 | 3,382.2 | 3,320.0
Operating expenses: |  |  |
Electric production fuel and purchased power | 855.0 | 818.1 | 854.0
Electric transmission service | 495.7 | 480.9 | 527.9
Cost of gas sold | 232.3 | 211.4 | 194.3
Asset valuation charges for Franklin County wind farm | 0.0 | 0.0 | 86.4
Other operation and maintenance | 645.8 | 633.2 | 589.4
Depreciation and amortization | 506.9 | 461.8 | 411.6
Taxes other than income taxes | 104.4 | 105.6 | 102.3
Total operating expenses | 2,840.1 | 2,711.0 | 2,765.9
Operating income (loss) | 694.4 | 671.2 | 554.1
Other (income) and deductions: |  |  |
Interest expense | 247.0 | 215.6 | 196.2
Equity (income) loss from unconsolidated investments, net | (54.6) | (44.8) | (39.6)
Allowance for funds used during construction | (75.6) | (49.7) | (62.5)
Other | 7.6 | 17.3 | 16.6
Total other (income) and deductions | 124.4 | 138.4 | 110.7
Income from continuing operations before income taxes | 570.0 | 532.8 | 443.4
Income tax expense (benefit) | 47.7 | 66.7 | 59.4
Income from continuing operations, net of tax | 522.3 | 466.1 | 384.0
Income (loss) from discontinued operations, net of tax | 0.0 | 1.4 | (2.3)
Net income | 522.3 | 467.5 | 381.7
Preferred dividend requirements of Interstate Power and Light Company | 10.2 | 10.2 | 10.2
Net income attributable to common shareowners | $ 512.1 | $ 457.3 | $ 371.5
Weighted average number of common shares outstanding (basic and diluted) (in shares) | 233.6 | 229.7 | 227.1
Earnings per weighted average common share attributable to Alliant Energy common shareowners (basic and diluted): |  |  |
Income from continuing operations, net of tax (in dollars per share) | $ 2.19 | $ 1.99 | $ 1.65
Loss from discontinued operations, net of tax (in dollars per share) | 0.00 | 0.00 | (0.01)
Net income (in dollars per share) | $ 2.19 | $ 1.99 | $ 1.64
Amounts attributable to common shareowners: |  |  |
Income from continuing operations, net of tax | $ 512.1 | $ 455.9 | $ 373.8
Income (loss) from discontinued operations, net of tax | 0.0 | 1.4 | (2.3)
Net income | 512.1 | 457.3 | 371.5
IPL [Member] |  |  |
Revenues: |  |  |
Electric utility | 1,731.1 | 1,598.9 | 1,569.7
Gas utility | 266.2 | 226.0 | 204.0
Other utility | 45.0 | 45.4 | 46.7
Total revenues | 2,042.3 | 1,870.3 | 1,820.4
Operating expenses: |  |  |
Electric production fuel and purchased power | 469.0 | 443.6 | 430.5
Electric transmission service | 352.9 | 310.4 | 359.7
Cost of gas sold | 129.6 | 115.6 | 111.0
Other operation and maintenance | 402.6 | 396.6 | 376.9
Depreciation and amortization | 283.5 | 245.0 | 210.8
Taxes other than income taxes | 53.9 | 55.0 | 53.9
Total operating expenses | 1,691.5 | 1,566.2 | 1,542.8
Operating income (loss) | 350.8 | 304.1 | 277.6
Other (income) and deductions: |  |  |
Interest expense | 119.4 | 112.4 | 103.2
Allowance for funds used during construction | (42.2) | (31.4) | (52.0)
Other | 2.6 | 7.0 | 6.5
Total other (income) and deductions | 79.8 | 88.0 | 57.7
Income from continuing operations before income taxes | 271.0 | 216.1 | 219.9
Income tax expense (benefit) | (3.2) | (10.9) | (5.9)
Net income | 274.2 | 227.0 | 225.8
Preferred dividend requirements of Interstate Power and Light Company | 10.2 | 10.2 | 10.2
Net income attributable to common shareowners | 264.0 | 216.8 | 215.6
Amounts attributable to common shareowners: |  |  |
Net income | 264.0 | 216.8 | 215.6
WPL [Member] |  |  |
Revenues: |  |  |
Electric utility | 1,269.2 | 1,295.8 | 1,305.8
Gas utility | 180.4 | 174.9 | 151.4
Other utility | 3.0 | 2.1 | 1.9
Total revenues | 1,452.6 | 1,472.8 | 1,459.1
Operating expenses: |  |  |
Electric production fuel and purchased power | 386.0 | 374.5 | 423.5
Electric transmission service | 142.8 | 170.5 | 168.2
Cost of gas sold | 102.7 | 95.8 | 83.3
Other operation and maintenance | 241.6 | 238.5 | 209.6
Depreciation and amortization | 219.4 | 212.9 | 192.5
Taxes other than income taxes | 47.2 | 46.9 | 44.8
Total operating expenses | 1,139.7 | 1,139.1 | 1,121.9
Operating income (loss) | 312.9 | 333.7 | 337.2
Other (income) and deductions: |  |  |
Interest expense | 97.8 | 93.8 | 91.4
Equity (income) loss from unconsolidated investments, net | (0.9) | (0.7) | (39.8)
Allowance for funds used during construction | (33.4) | (18.3) | (10.5)
Other | 5.1 | 10.4 | 10.0
Total other (income) and deductions | 68.6 | 85.2 | 51.1
Income from continuing operations before income taxes | 244.3 | 248.5 | 286.1
Income tax expense (benefit) | 36.2 | 61.9 | 93.3
Net income | 208.1 | 186.6 | 192.8
Net income attributable to noncontrolling interest | 0.0 | 0.0 | 2.4
Net income attributable to common shareowners | 208.1 | 186.6 | 190.4
Amounts attributable to common shareowners: |  |  |
Net income | $ 208.1 | $ 186.6 | $ 190.4

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