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Reportable Business Segments (Key Financial Information by Segment) (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Segment Reporting Information [Line Items] |  |  |
Net Sales | $ 5,341,300,000 | $ 4,981,900,000 | $ 4,718,400,000
Cost of Goods Sold | 3,569,400,000 | 3,434,100,000 | 3,433,700,000
Selling, general and administrative | 730,600,000 | 705,500,000 | 627,200,000
Other (income) expense | 5,000,000.0 | (14,800,000) | (8,300,000)
Segment profit (loss) | 1,036,300,000 | $ 857,100,000 | $ 665,800,000
Revenue from transactions with major customers | $ 0 |  |
Minimum percentage of consolidated net sales from single customer | 10.00% | 10.00% | 10.00%
Segment Reporting, Reconciling Item, Corporate Nonsegment |  |  |
Segment Reporting Information [Line Items] |  |  |
Net Sales | $ 0 | $ 247,600,000 | $ 233,700,000
Cost of Goods Sold | 700,000 | 178,900,000 | 183,000,000.0
Selling, general and administrative | 107,000,000.0 | 157,800,000 | 144,200,000
Other (income) expense | 12,700,000 | 4,800,000 | 500,000
Segment profit (loss) | (120,300,000) | (93,900,000) | (94,000,000.0)
Residential Heating and Cooling [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net Sales | 3,577,100,000 | 3,222,900,000 | 3,198,300,000
Residential Heating and Cooling [Member] | Operating Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Net Sales | 3,577,100,000 | 3,222,900,000 | 3,198,300,000
Cost of Goods Sold | 2,426,200,000 | 2,277,300,000 | 2,302,200,000
Selling, general and administrative | 393,800,000 | 350,200,000 | 303,300,000
Other (income) expense | (2,500,000) | (14,800,000) | (4,100,000)
Segment profit (loss) | 759,700,000 | 610,200,000 | 596,900,000
Commercial Heating and Cooling [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net Sales | 1,764,200,000 | 1,511,400,000 | 1,286,400,000
Commercial Heating and Cooling [Member] | Operating Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Net Sales | 1,764,200,000 | 1,511,400,000 | 1,286,400,000
Cost of Goods Sold | 1,142,500,000 | 977,900,000 | 948,500,000
Selling, general and administrative | 229,900,000 | 197,500,000 | 179,700,000
Other (income) expense | (5,200,000) | (4,800,000) | (4,700,000)
Segment profit (loss) | $ 396,900,000 | $ 340,800,000 | $ 162,900,000

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