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Reportable Business Segments (Segment Data) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2017 | Jun. 30, 2016
Net sales |  |  |  |
Net sales | $ 1,102.1 | $ 1,019.2 | $ 1,895.6 | $ 1,734.4
Segment profit (loss) |  |  |  |
Total segment profit | 182.9 | 161.1 | 247.6 | 207.7
Reconciliation to Operating income: |  |  |  |
Special product quality adjustments | 5.2 | 0.0 | 5.2 | (0.4)
Items in Losses (gains) and other expenses, net that are excluded from segment profit (loss) | 2.2 | (0.4) | 6.0 | 3.1
Restructuring charges | 0.1 | 0.8 | 0.2 | 0.6
Operating income | 175.4 | 160.7 | 236.2 | 204.4
Residential Heating & Cooling [Member] |  |  |  |
Net sales |  |  |  |
Net sales | 653.5 | 574.5 | 1,073.3 | 951.8
Segment profit (loss) |  |  |  |
Total segment profit | 140.5 | 115.9 | 182.9 | 154.1
Commercial Heating & Cooling [Member] |  |  |  |
Net sales |  |  |  |
Net sales | 258.6 | 252.9 | 454.1 | 423.3
Segment profit (loss) |  |  |  |
Total segment profit | 44.7 | 47.4 | 63.8 | 61.7
Refrigeration [Member] |  |  |  |
Net sales |  |  |  |
Net sales | 190.0 | 191.8 | 368.2 | 359.3
Segment profit (loss) |  |  |  |
Total segment profit | 21.6 | 21.3 | 35.7 | 30.3
Corporate & Other [Member] |  |  |  |
Segment profit (loss) |  |  |  |
Total segment profit | $ 23.9 | $ 23.5 | $ 34.8 | $ 38.4

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