Restructuring Charges (Schedule of Restructuring Activities and Related Accruals) (Details) - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Restructuring Reserve [Roll Forward]
Restructuring and related costs	$ 24.4	$ 4.1
Ending Balance	17.5
Restructuring Charges, including amounts included in Cost of Products Sold	(5.8)
Employee Severance [Member]
Restructuring Reserve [Roll Forward]
Beginning Balance	16.0
Utilized - Cash Payments	(5.6)
Utilized - Non-Cash	(0.1)
Ending Balance	17.6
Other Restructuring [Member]
Restructuring Reserve [Roll Forward]
Beginning Balance	0.7
Utilized - Cash Payments	(15.9)
Asset Impairment and Accelerated Depreciation [Member]
Restructuring Reserve [Roll Forward]
Beginning Balance	0.0
Utilized - Non-Cash	(2.0)
Ending Balance	$ 0.0