CONDENSED CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Income Statement [Abstract]
Net sales	$ 2,543.8	$ 2,268.1
Cost of sales	2,073.8	1,934.3
Gross income	470.0	333.8
Operating expenses:
Selling, general and administrative	196.8	199.1
Amortization of purchased intangibles	13.5	3.9
Total operating expenses	210.3	203.0
Operating income	259.7	130.8
Other income (expense):
Interest expense	(22.4)	(13.4)
Interest income	1.6	6.2
Miscellaneous, net	(2.0)	5.8
Income before income taxes and losses of unconsolidated affiliates	236.9	129.4
Provision for income taxes	54.7	34.2
Income before losses of unconsolidated affiliates	182.2	95.2
Losses of unconsolidated affiliates	(2.8)	(6.7)
Net income	$ 179.4	$ 88.5
Earnings per share:
Basic	$ 2.73	$ 1.35
Diluted	2.71	1.34
Cash dividends declared per share on Common Stock	$ 0.46	$ 0.41