Reportable Business Segments (Net Sales and Segment Profit (Loss) and Reconciliation to Income from Continuing Operations) (Details) - USD ($)	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Net Sales
Net Sales	$ 834,100,000	$ 955,000,000	$ 992,500,000	$ 685,800,000	$ 812,800,000	$ 898,400,000	$ 960,700,000	$ 695,400,000	$ 3,467,400,000	$ 3,367,400,000	$ 3,199,100,000
Segment Profit (Loss)
Subtotal that includes segment profit and eliminations									377,600,000	340,900,000	300,500,000
Reconciliation to income from continuing operations before income taxes:
Special product quality adjustments									(2,200,000)	(1,400,000)	(2,300,000)
Items in Losses and other expenses, net that are excluded from segment profit (loss) (2)									15,600,000	4,700,000	8,800,000
Restructuring charges					$ 600,000	$ 1,000,000			3,200,000	1,900,000	5,000,000
Interest expense, net									23,600,000	17,200,000	14,500,000
Goodwill impairment	5,500,000								5,500,000	0	0
Asset impairment	$ 44,500,000								44,500,000	0	0
One time inventory write down									5,600,000	1,000,000	0
Other expense, net									(800,000)	(100,000)	200,000
Income from continuing operations before income taxes									282,600,000	317,600,000	274,300,000
Revenue from transactions with major customers									$ 0	$ 0	$ 0
Minimum percentage of consolidated net sales from single customer									10.00%	10.00%	10.00%
Residential Heating & Cooling [Member]
Net Sales
Net Sales									$ 1,866,900,000	$ 1,736,500,000	$ 1,583,200,000
Segment Profit (Loss)
Subtotal that includes segment profit and eliminations									278,400,000	235,800,000	180,100,000
Reconciliation to income from continuing operations before income taxes:
Goodwill impairment									0	0
Commercial Heating & Cooling [Member]
Net Sales
Net Sales									887,200,000	878,500,000	844,400,000
Segment Profit (Loss)
Subtotal that includes segment profit and eliminations									130,400,000	124,000,000	118,100,000
Reconciliation to income from continuing operations before income taxes:
Goodwill impairment									0	0
Refrigeration [Member]
Net Sales
Net Sales									713,300,000	752,400,000	771,500,000
Segment Profit (Loss)
Subtotal that includes segment profit and eliminations									52,900,000	55,400,000	90,200,000
Reconciliation to income from continuing operations before income taxes:
Goodwill impairment									5,500,000	0
Corporate & other [Member]
Segment Profit (Loss)
Subtotal that includes segment profit and eliminations									$ (84,100,000)	$ (74,300,000)	$ (87,900,000)