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v3.6.0.2

Selected Consolidated Quarterly Financial Data (Unaudited) (Details) $ / shares in Units, $ in Millions |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Apr. 20, 2016 | Dec. 31, 2016 USD ($) $ / shares | Sep. 30, 2016 USD ($) $ / shares | Jun. 30, 2016 USD ($) $ / shares | Mar. 31, 2016 USD ($) $ / shares | Dec. 31, 2015 USD ($) $ / shares | Sep. 30, 2015 USD ($) $ / shares | Jun. 30, 2015 USD ($) $ / shares | Mar. 31, 2015 USD ($) $ / shares | Dec. 31, 2016 USD ($) | Dec. 31, 2015 USD ($) | Dec. 31, 2014 USD ($)
Operating revenues |  |  | $ 797.0 | $ 924.6 | $ 754.6 | $ 843.8 | $ 740.1 | $ 898.9 | $ 717.2 | $ 897.4 | $ 3,320.0 | $ 3,253.6 | $ 3,350.3
Operating income |  |  | 99.9 | 162.6 | 128.6 | 145.9 | 79.2 | 235.9 | 109.0 | 152.9 | 537.0 | 577.0 | 543.6
Income from continuing operations, net of tax |  |  | 63.0 | 128.8 | 84.4 | 97.6 | 35.2 | 180.0 | 68.9 | 96.6 | 373.8 | 380.7 | 385.5
Loss from discontinued operations, net of tax |  |  | (0.3) | (0.4) | (0.5) | (1.1) | (1.1) | (0.1) | (1.3) | 0.0 | (2.3) | (2.5) | (2.4)
Net income |  |  |  |  |  |  |  |  |  |  | 381.7 | 388.4 | 393.3
Net income attributable to common shareowners |  |  | $ 62.7 | $ 128.4 | $ 83.9 | $ 96.5 | $ 34.1 | $ 179.9 | $ 67.6 | $ 96.6 | 371.5 | 378.2 | 383.1
Income from continuing operations, net of tax (in dollars per share) | $ / shares | [1] |  | $ 0.28 | $ 0.57 | $ 0.37 | $ 0.43 | $ 0.16 | $ 0.79 | $ 0.31 | $ 0.43 |  |  |
Loss from discontinued operations, net of tax (in dollars per share) | $ / shares | [1] |  | 0.00 | 0.00 | 0.00 | 0.00 | (0.01) | 0.00 | (0.01) | 0.00 |  |  |
Net income (in dollars per share) | $ / shares | [1] |  | $ 0.28 | $ 0.57 | $ 0.37 | $ 0.43 | $ 0.15 | $ 0.79 | $ 0.30 | $ 0.43 |  |  |
Common stock split conversion ratio (2:1) |  | 2 |  |  |  |  |  |  |  |  |  |  |
IPL [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues |  |  | $ 434.5 | $ 516.2 | $ 411.0 | $ 458.7 | $ 398.7 | $ 504.6 | $ 382.2 | $ 489.0 | 1,820.4 | 1,774.5 | 1,848.1
Operating income |  |  | 34.9 | 125.9 | 48.0 | 62.0 | 25.6 | 117.0 | 33.8 | 65.5 | 270.8 | 241.9 | 209.2
Net income |  |  | 26.5 | 116.7 | 34.4 | 48.2 | 8.0 | 119.1 | 19.0 | 50.1 | 225.8 | 196.2 | 191.8
Net income attributable to common shareowners |  |  | 24.0 | 114.1 | 31.9 | 45.6 | 5.5 | 116.5 | 16.5 | 47.5 | 215.6 | 186.0 | 181.6
WPL [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues |  |  | 352.2 | 397.0 | 334.3 | 375.6 | 330.7 | 382.6 | 324.7 | 397.1 | 1,459.1 | 1,435.1 | 1,449.1
Operating income |  |  | 58.2 | 115.0 | 75.0 | 78.8 | 49.3 | 110.3 | 68.3 | 80.8 | 327.0 | 308.7 | 301.0
Net income |  |  | 32.5 | 69.6 | 43.7 | 47.0 | 24.4 | 68.4 | 39.7 | 45.1 | 192.8 | 177.6 | 181.1
Net income attributable to common shareowners |  |  | $ 31.7 | $ 69.0 | $ 43.2 | $ 46.5 | $ 24.2 | $ 68.0 | $ 39.2 | $ 44.9 | $ 190.4 | $ 176.3 | $ 180.4
[1] | Amounts reflect the effects of a two-for-one common stock split distributed in May 2016.

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