Restructuring And Related Charges (Summary Of Costs Incurred By Reporting Segment) (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
Cumulative costs	101.7		101.7
Future costs to be incurred	89.4		89.4
Corporate [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges	13.4	8.3	28.8	10.9
Cumulative costs	71.1		71.1
Future costs to be incurred	72.6		72.6
Hardware & Home Improvement [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges	0.2	0.4	0.7	3.2
Cumulative costs	1.1		1.1
Future costs to be incurred	1.8		1.8
Home And Personal Care [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges	1.7	1.3	2.8	1.5
Cumulative costs	10.9		10.9
Future costs to be incurred	7.1		7.1
Global Pet Care [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges	6.4	2.3	16.7	4.9
Cumulative costs	16.5		16.5
Future costs to be incurred	3.3		3.3
Home and Garden Business [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges	0.2	$ 0.3	0.4	$ 1.0
Cumulative costs	2.1		2.1
Future costs to be incurred	$ 4.6		$ 4.6