Restructuring And Related Charges (Summary Of Restructuring And Related Charges) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 29, 2020	Mar. 31, 2019	Mar. 29, 2020	Mar. 31, 2019
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges	$ 21.9	$ 12.6	$ 49.4	$ 21.5
Global Productivity Improvement Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges	21.2	12.7	47.9	18.5
Other Restructuring Activities [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges	0.7	(0.1)	1.5	3.0
Cost Of Goods Sold [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges	2.9	0.2	12.8	1.0
Operating Expense [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges	$ 19.0	$ 12.4	$ 36.6	$ 20.5