Income Taxes, Income Tax Components (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 28, 2025	Mar. 29, 2024	Mar. 28, 2025	Mar. 29, 2024
Income Tax Disclosure [Abstract]
United States income taxes	$ 7.4	$ (4.6)	$ 22.5	$ 7.5
Foreign income taxes	26.3	14.2	39.6	22.5
Provision for income taxes	$ 33.7	$ 9.6	$ 62.1	$ 30.0
Effective tax rate	32.90%	5.00%	21.20%	6.70%