CONDENSED CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Income Statement [Abstract]
Net sales	$ 804.6	$ 746.9	$ 2,269.1	$ 2,144.4
Cost of goods and services sold	510.3	482.2	1,469.0	1,419.5
Gross profit	294.3	264.7	800.1	724.9
Research and development	17.1	15.5	52.5	50.6
Selling, general and administrative expenses	102.7	83.5	286.6	253.2
Other expense (income) (Note 14)	6.9	4.4	32.7	10.8
Operating profit	167.6	161.3	428.3	410.3
Interest expense, net	0.2	0.7	0.7	3.8
Interest income	(4.7)	(4.6)	(12.4)	(14.8)
Other nonoperating expense (income)	0.2	0.7	0.6	0.7
Income before income taxes and equity in net income of affiliated companies	171.9	164.5	439.4	420.6
Income tax expense	34.0	32.4	88.3	70.7
Equity in net income of affiliated companies	(2.1)	(3.9)	(10.5)	(12.7)
Net income	$ 140.0	$ 136.0	$ 361.6	$ 362.6
Net income per share:
Basic (in dollars per share)	$ 1.94	$ 1.87	$ 5.00	$ 4.96
Diluted (in dollars per share)	$ 1.92	$ 1.85	$ 4.97	$ 4.91
Weighted average shares outstanding:
Basic (in shares)	72.2	72.8	72.3	73.1
Diluted (in shares)	72.6	73.4	72.7	73.8