Reportable Business Segments (Net Sales and Segment Profit (Loss) and Reconciliation to Income from Continuing Operations) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting Information [Line Items]
Revenues	$ 4,194,100,000	$ 3,634,100,000	$ 3,807,200,000
Segment Profit (Loss)
Total segment profit		(506,700,000)	(608,900,000)
Reconciliation to Operating income:
Gain (Loss) on Disposition of Business and Related Property	0	0	10,600,000
Insurance recoveries received for property damage incurred from natural disaster		3,100,000	(79,600,000)
Items in (Gains) Losses and other expenses, net that are excluded from segment profit (loss)	14,300,000	13,300,000	11,300,000
Restructuring charges	1,800,000	10,800,000	10,300,000
One time inventory write down	2,500,000	(1,000,000.0)	600,000
Operating income	590,300,000	$ 478,500,000	$ 656,900,000
Revenue from transactions with major customers	$ 0
Minimum percentage of consolidated net sales from single customer	10.00%	10.00%	10.00%
Loss(gain) from natural disaster, net of Insurance recoveries	$ 0	$ 3,100,000	$ (178,800,000)
Residential Heating & Cooling [Member]
Segment Reporting Information [Line Items]
Revenues	2,775,600,000	2,361,500,000	2,291,100,000
Segment Profit (Loss)
Total segment profit	(540,300,000)	(428,500,000)	(464,600,000)
Commercial Heating & Cooling [Member]
Segment Reporting Information [Line Items]
Revenues	864,800,000	800,900,000	947,400,000
Segment Profit (Loss)
Total segment profit	(110,900,000)	(136,900,000)	(165,400,000)
Refrigeration [Member]
Segment Reporting Information [Line Items]
Revenues	553,700,000	471,700,000	568,700,000
Segment Profit (Loss)
Total segment profit	(49,100,000)	(32,800,000)	(61,300,000)
Corporate & other [Member]
Segment Profit (Loss)
Total segment profit	$ (96,400,000)	$ (91,500,000)	$ (82,400,000)