CONDENSED CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Income Statement [Abstract]
Net sales	$ 702.1	$ 753.8	$ 1,397.5	$ 1,470.4
Cost of goods and services sold	472.1	462.4	937.3	907.7
Gross profit	230.0	291.4	460.2	562.7
Research and development	17.5	16.5	35.1	33.6
Selling, general and administrative expenses	83.0	88.4	169.7	174.4
Other expense (income) (Note 14)	3.3	4.0	6.4	16.9
Operating profit	126.2	182.5	249.0	337.8
Interest expense, net	1.5	2.7	3.1	4.9
Interest income	(4.0)	(5.0)	(10.2)	(9.8)
Other nonoperating (income) expense	0.0	(0.1)	0.0	(0.1)
Income before income taxes and equity in net income of affiliated companies	128.7	184.9	256.1	342.8
Income tax expense	21.9	34.8	38.3	58.4
Equity in net income of affiliated companies	(4.5)	(5.0)	(8.8)	(10.7)
Net income	$ 111.3	$ 155.1	$ 226.6	$ 295.1
Net income per share:
Basic (in dollars per share)	$ 1.52	$ 2.08	$ 3.09	$ 3.96
Diluted (in dollars per share)	$ 1.51	$ 2.06	$ 3.06	$ 3.91
Weighted average shares outstanding:
Basic (in shares)	73.0	74.3	73.3	74.4
Diluted (in shares)	73.7	75.4	74.0	75.5