FAIR VALUE OF FINANCIAL INSTRUMENTS - Summary of Income Recognized from Equity Investments (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jul. 04, 2021	Jun. 28, 2020	Jul. 04, 2021	Jun. 28, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Realized gain (loss) on equity investments sold			$ 6.9	$ (8.2)
Gain (loss) on equity investments	$ 0.0	$ 60.1	6.9	(8.2)
Energizer
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Unrealized gain on equity investments held	0.0	44.5	0.0	5.3
Realized gain (loss) on equity investments sold	0.0	15.6	6.9	(13.5)
Gain (loss) on equity investments	0.0	60.1	6.9	(8.2)
Dividend income from equity investments	0.0	1.2	0.2	4.4
Gain (loss) from equity investments	$ 0.0	$ 61.3	$ 7.1	$ (3.8)