Consolidated Statements of Operations - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Income Statement [Abstract]
Net sales	$ 1,545.3	$ 1,500.9	$ 2,680.4	$ 2,573.5
Cost of goods sold	1,005.8	983.4	1,789.6	1,715.1
Gross profit	539.5	517.5	890.8	858.4
Operating Expenses:
Selling, general and administrative expenses	183.1	173.3	368.3	344.6
Losses (gains) and other expenses, net	2.4	(2.7)	4.6	0.1
Restructuring charges	0.0	0.0	0.0	0.0
Income from equity method investments	(1.0)	(2.1)	(0.6)	(3.3)
Operating income	355.0	349.0	518.5	517.0
Pension settlements	0.1	0.1	0.6	0.2
Interest expense, net	14.7	8.3	29.9	14.5
Other expense, net	0.6	0.6	1.5	1.5
Net income before income taxes	339.6	340.0	486.5	500.8
Provision for income taxes	70.6	66.1	100.3	97.3
Net income	$ 269.0	$ 273.9	$ 386.2	$ 403.5
Earnings per share - Basic (in dollars per share)	$ 7.75	$ 7.75	$ 11.11	$ 11.39
Earnings per share - Diluted (in dollars per share)	$ 7.72	$ 7.71	$ 11.06	$ 11.34
Weighted average number of shares outstanding, basic (in shares)	34.7	35.3	34.8	35.4
Weighted average number of shares outstanding, diluted (in shares)	34.8	35.5	34.9	35.6