Reportable Business Segments (Segment Data) (Details) $ in Millions	3 Months Ended									12 Months Ended
	Mar. 31, 2023 USD ($) Segment	Dec. 31, 2022 USD ($)	Sep. 30, 2022 USD ($)	Jun. 30, 2022 USD ($)	Mar. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Sep. 30, 2021 USD ($)	Jun. 30, 2021 USD ($)	Mar. 31, 2021 USD ($)	Dec. 31, 2022 USD ($) Segment	Dec. 31, 2021 USD ($)
Segment Reporting Information [Line Items]
Number of Reportable Segments | Segment	2									3
Net sales
Net sales	$ 1,049.4	$ 1,093.8	$ 1,244.9	$ 1,366.3	$ 1,013.4	$ 964.8	$ 1,059.9	$ 1,239.0	$ 930.5	$ 4,718.4	$ 4,194.1
Segment profit (loss)
Total segment profit	141.7	132.2	189.3	229.8	114.6	101.9	164.8	221.6	115.7	665.8	603.9
Reconciliation to Operating income:
Items in Losses (gains) and other expenses, net that are excluded from segment profit (loss)	2.2				2.2
Restructuring charges	0.0				0.5
Operating income	139.5				111.9
Residential
Net sales
Net sales	681.0	703.4	835.3	977.5	682.2	620.3	711.0	838.0	606.3	3,198.3	2,775.6
Segment profit (loss)
Total segment profit	111.1	119.2	153.8	216.3	107.6	110.3	144.0	189.7	96.4	596.9	540.3
Commercial
Net sales
Net sales	308.7	327.2	352.3	327.4	279.5	286.3	292.7	335.0	274.8	1,286.4	1,188.8
Segment profit (loss)
Total segment profit	50.0	45.6	52.4	41.2	23.8	29.8	36.3	58.9	39.6	163.0	164.6
Refrigeration
Net sales
Net sales		0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
Segment profit (loss)
Total segment profit		0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
Corporate and other
Net sales
Net sales	59.7	63.2	57.3	61.4	51.7	58.2	56.2	66.0	49.4	233.7	229.7
Segment profit (loss)
Total segment profit	$ (19.4)	$ (32.6)	$ (16.9)	$ (27.7)	$ (16.8)	$ (38.2)	$ (15.5)	$ (27.0)	$ (20.3)	$ (94.1)	$ (101.0)