Fair Value Of Financial Instruments (Summary Of Income Recognized From Equity Investments) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 28, 2020	Jun. 30, 2019	Jun. 28, 2020	Jun. 30, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Unrealized gain (loss) on equity investments held			$ 5.3	$ (38.2)
Realized gain (loss) on equity investments sold			(13.5)	0.0
Gain (loss) on equity investments	$ 60.1	$ (33.2)	(8.2)	(38.2)
Energizer
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Unrealized gain (loss) on equity investments held	44.5	(33.2)	5.3	(38.2)
Realized gain (loss) on equity investments sold	15.6	0.0	(13.5)	0.0
Gain (loss) on equity investments	60.1	(33.2)	(8.2)	(38.2)
Dividend income from equity investments	1.2	1.6	4.4	3.2
Gain (loss) from equity investments	$ 61.3	$ (31.6)	$ (3.8)	$ (35.0)