CONDENSED CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Income Statement [Abstract]
Net sales	$ 1,791.7	$ 1,576.5
Cost of sales	1,620.0	1,333.9
Gross income	171.7	242.6
Operating expenses:
Selling, general and administrative	150.9	145.4
Amortization of purchased intangibles	2.8	1.3
Total operating expenses	153.7	146.7
Operating income	18.0	95.9
Other income (expense):
Interest expense	(12.5)	(12.0)
Interest income	0.7	0.6
Miscellaneous, net	(5.6)	(1.5)
Income before income taxes and earnings (losses) of unconsolidated affiliates	0.6	83.0
Provision for (benefit from) income taxes	(4.4)	13.2
Income before earnings (losses) of unconsolidated affiliates	5.0	69.8
Equity in earnings (losses) of unconsolidated affiliates	1.2	(0.3)
Net income	$ 6.2	$ 69.5
Earnings per share:
Basic	$ 0.09	$ 1.02
Diluted	0.09	1.01
Cash dividends declared per share on Common Stock	$ 0.37	$ 0.33