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v3.19.1

Condensed Consolidated Statements Of Income - USD ($) shares in Millions, $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2019 | Mar. 31, 2018
Revenues: |  |
Electric utility | $ 743.4 | $ 708.7
Gas utility | 215.8 | 185.6
Other utility | 11.1 | 13.2
Non-utility | 16.9 | 8.8
Total revenues | 987.2 | 916.3
Operating expenses: |  |
Electric production fuel and purchased power | 218.4 | 203.2
Electric transmission service | 123.0 | 126.4
Cost of gas sold | 121.6 | 111.2
Other operation and maintenance | 181.2 | 162.4
Depreciation and amortization | 136.9 | 120.4
Taxes other than income taxes | 29.3 | 27.0
Total operating expenses | 810.4 | 750.6
Operating income | 176.8 | 165.7
Other (income) and deductions: |  |
Interest expense | 66.3 | 59.2
Equity income from unconsolidated investments, net | (10.9) | (21.3)
Allowance for funds used during construction | (25.4) | (14.9)
Other | 4.0 | 2.4
Total other (income) and deductions | 34.0 | 25.4
Income before income taxes | 142.8 | 140.3
Income taxes | 15.1 | 16.8
Net income | 127.7 | 123.5
Preferred dividend requirements of Interstate Power and Light Company | 2.6 | 2.6
Net income attributable to common shareowners | $ 125.1 | $ 120.9
Weighted average number of common shares outstanding (basic) (in shares) | 236.5 | 231.4
Weighted average number of common shares outstanding (diluted) (in shares) | 236.6 | 231.4
Earnings per weighted average common share attributable to Alliant Energy common shareowners (basic and diluted) (in dollars per share) | $ 0.53 | $ 0.52
IPL [Member] |  |
Revenues: |  |
Electric utility | $ 419.8 | $ 405.7
Gas utility | 124.6 | 108.1
Other utility | 10.7 | 12.0
Total revenues | 555.1 | 525.8
Operating expenses: |  |
Electric production fuel and purchased power | 128.9 | 114.6
Electric transmission service | 87.7 | 90.8
Cost of gas sold | 63.3 | 60.6
Other operation and maintenance | 108.0 | 105.5
Depreciation and amortization | 77.1 | 64.8
Taxes other than income taxes | 16.6 | 13.9
Total operating expenses | 481.6 | 450.2
Operating income | 73.5 | 75.6
Other (income) and deductions: |  |
Interest expense | 29.4 | 29.8
Allowance for funds used during construction | (15.8) | (7.4)
Other | 1.9 | 0.8
Total other (income) and deductions | 15.5 | 23.2
Income before income taxes | 58.0 | 52.4
Income taxes | 2.1 | 3.1
Net income | 55.9 | 49.3
Preferred dividend requirements of Interstate Power and Light Company | 2.6 | 2.6
Net income attributable to common shareowners | 53.3 | 46.7
WPL [Member] |  |
Revenues: |  |
Electric utility | 323.6 | 303.0
Gas utility | 91.2 | 77.5
Other utility | 0.4 | 1.2
Total revenues | 415.2 | 381.7
Operating expenses: |  |
Electric production fuel and purchased power | 89.5 | 88.6
Electric transmission service | 35.3 | 35.6
Cost of gas sold | 58.3 | 50.6
Other operation and maintenance | 63.5 | 56.3
Depreciation and amortization | 58.6 | 54.6
Taxes other than income taxes | 11.9 | 12.0
Total operating expenses | 317.1 | 297.7
Operating income | 98.1 | 84.0
Other (income) and deductions: |  |
Interest expense | 25.8 | 24.7
Allowance for funds used during construction | (9.6) | (7.5)
Other | 1.6 | 1.1
Total other (income) and deductions | 17.8 | 18.3
Income before income taxes | 80.3 | 65.7
Income taxes | 14.6 | 11.7
Net income | 65.7 | 54.0
Net income attributable to common shareowners | $ 65.7 | $ 54.0

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