Consolidated Statements of Operations - USD ($) shares in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Income Statement [Abstract]
Net sales	$ 1,500,900,000	$ 1,451,100,000	$ 2,573,500,000	$ 2,498,200,000
Cost of goods sold	978,400,000	962,900,000	1,722,500,000	1,670,000,000
Gross profit	522,500,000	488,200,000	851,000,000.0	828,200,000
Operating Expenses:
Selling, general and administrative expenses	173,300,000	168,500,000	344,600,000	339,200,000
(Gains) losses and other expenses, net	(2,700,000)	3,700,000	100,000	7,400,000
Gain on sale from previous dispositions	0	1,600,000	0	1,600,000
Income from equity method investments	(2,100,000)	(2,500,000)	(3,300,000)	(3,700,000)
Operating income	354,000,000.0	320,100,000	509,600,000	486,900,000
Pension settlements	100,000	300,000	200,000	300,000
Interest expense, net	8,300,000	12,500,000	14,500,000	24,300,000
Other expense, net	600,000	300,000	1,500,000	1,100,000
Net income before income taxes	345,000,000.0	307,000,000.0	493,400,000	461,200,000
Provision for income taxes	67,400,000	61,100,000	95,500,000	91,000,000.0
Net income	$ 277,600,000	$ 245,900,000	$ 397,900,000	$ 370,200,000
Earnings per share - Basic (in dollars per share)	$ 7.86	$ 6.91	$ 11.24	$ 10.40
Earnings per share - Diluted (in dollars per share)	$ 7.82	$ 6.87	$ 11.18	$ 10.34
Weighted average number of shares outstanding, basic (in shares)	35.3	35.6	35.4	35.6
Weighted average number of shares outstanding, diluted (in shares)	35.5	35.8	35.6	35.8