Restructuring Charges (Schedule of Charges Related to Restructuring Activities) (Details) - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Sep. 30, 2025
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 18.1	$ 4.1
Restructuring and related costs	24.4	4.1
Restructuring Reserve	17.5
Restructuring Charges, including amounts included in Cost of Products Sold	(5.8)
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	17.6		$ 16.0
Restructuring charges, charge to income	7.3
Utilized - Cash Payments	(5.6)
Utilized - Non-Cash	(0.1)
Asset Impairment and Accelerated Depreciation [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	0.0		0.0
Restructuring charges, charge to income	2.0
Utilized - Non-Cash	(2.0)
Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve			0.7
Restructuring charges, charge to income	15.1
Utilized - Cash Payments	(15.9)
Restructuring Reserve (Reversal)	(0.1)
Operating Model Redesign
Restructuring Cost and Reserve [Line Items]
Severance Costs	0.3	0.5
Other Restructuring Costs	1.9	0.8
Restructuring charges	2.2	2.3
Restructuring Reserve	2.0
Asset Impairment and Accelerated Depreciation	0.0	1.0
Operating Model Redesign | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	2.0		2.7
Restructuring charges, charge to income	0.3
Utilized - Cash Payments	(1.0)
Utilized - Non-Cash	0.0
Operating Model Redesign | Asset Impairment and Accelerated Depreciation [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	0.0		0.0
Restructuring charges, charge to income	0.0
Utilized - Non-Cash	0.0
Operating Model Redesign | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	0.0		0.0
Restructuring charges, charge to income	1.9
Utilized - Cash Payments	(1.9)
Restructuring and Related Cost, Expected Cost	7.0
Consolidation of Mexico Facilities
Restructuring Cost and Reserve [Line Items]
Severance Costs	(1.2)	(0.3)
Other Restructuring Costs	13.2	2.1
Restructuring charges	12.7	1.8
Restructuring Reserve	7.3
Asset Impairment and Accelerated Depreciation	0.7	0.0
Consolidation of Mexico Facilities | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	7.4		13.3
Restructuring charges, charge to income	(1.2)
Utilized - Cash Payments	(4.6)
Utilized - Non-Cash	(0.1)
Consolidation of Mexico Facilities | Asset Impairment and Accelerated Depreciation [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	0.0		0.0
Restructuring charges, charge to income	0.7
Utilized - Non-Cash	(0.7)
Consolidation of Mexico Facilities | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve			0.7
Restructuring charges, charge to income	13.2
Utilized - Cash Payments	(14.0)
Restructuring Reserve (Reversal)	(0.1)
Restructuring and Related Cost, Expected Cost	33.0
Consolidation of Wet Shave Operations
Restructuring Cost and Reserve [Line Items]
Severance Costs	8.2	0.0
Restructuring charges	9.5	0.0
Restructuring Reserve	8.2
Asset Impairment and Accelerated Depreciation	1.3	0.0
Consolidation of Wet Shave Operations | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	8.2		0.0
Restructuring charges, charge to income	8.2
Utilized - Cash Payments	0.0
Utilized - Non-Cash	0.0
Consolidation of Wet Shave Operations | Asset Impairment and Accelerated Depreciation [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	0.0		0.0
Restructuring charges, charge to income	1.3
Utilized - Non-Cash	(1.3)
Consolidation of Wet Shave Operations | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	0.0		$ 0.0
Restructuring charges, charge to income	0.0
Utilized - Cash Payments	0.0
Restructuring and Related Cost, Expected Cost	25.0
Selling, general and administrative expenses
Restructuring Cost and Reserve [Line Items]
Restructuring Charges, Including Amounts in Selling, General and Administrative Expenses	(0.5)	0.0
Selling, general and administrative expenses | Operating Model Redesign
Restructuring Cost and Reserve [Line Items]
Restructuring Charges, Including Amounts in Selling, General and Administrative Expenses	$ (0.5)	$ 0.0