Divestitures (Summary Of Components Of Income From Discontinued Operations Before Income Taxes) (Details) - USD ($) $ in Millions	3 Months Ended
	Dec. 30, 2018	Dec. 31, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income (Loss) from discontinued operations before income taxes	$ (92.9)	$ 506.0
Discontinued Operations, Held-For-Sale [Member] | Global Battery And Lighting [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales	249.0	261.2
Cost of goods sold	161.0	170.2
Gross profit	88.0	91.0
Operating expenses	58.3	53.9
Operating income	29.7	37.1
Interest expense	13.3	13.3
Other non-operating expense, net	0.5	0.1
Income (Loss) from discontinued operations before income taxes	15.9	23.7
Discontinued Operations, Held-For-Sale [Member] | Global Auto Care [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales	65.6	68.9
Cost of goods sold	38.9	37.5
Gross profit	26.7	31.4
Operating expenses	27.8	25.0
Operating income	(1.1)	6.4
Interest expense	0.5	0.5
Write-down of assets of business held for sale to fair value less cost to sell	107.2
Income (Loss) from discontinued operations before income taxes	$ (108.8)	$ 5.9