Special Charges (Schedule of Restructuring Activity) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Restructuring Cost and Reserve [Line Items]
Beginning Balance			$ 8,500,000
Expenses			4,900,000
Cash payments			(9,600,000)
Restructuring Reserve, Accrual Adjustment			(500,000)
Ending Balance	$ 3,300,000		3,300,000
Special charges	9,500,000	$ 6,200,000	26,100,000	$ 17,700,000
Business Optimization [Member]
Restructuring Cost and Reserve [Line Items]
Special charges		$ 4,700,000		$ 11,200,000
Other Restructuring [Member] | Global Restructuring Program [Member]
Restructuring Cost and Reserve [Line Items]
Expenses	9,000,000.0		28,300,000
Special charges	6,700,000		15,300,000
Employee Severance [Member] | Business Optimization [Member]
Restructuring Cost and Reserve [Line Items]
Special charges	$ 2,400,000		$ 9,200,000