OTHER FINANCIAL INFORMATION - Other Income (Expense), Net (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jul. 03, 2020	Jun. 28, 2019	Jul. 03, 2020	Jun. 28, 2019
Other Financial Information [Abstract]
Gain on equity investments	$ 25.7	$ 2.0	$ 27.1	$ 23.8
Net foreign currency exchange gain (loss)	(1.2)	1.8	(0.2)	2.6
Other, net	0.6	0.4	1.7	1.0
Total other income, net	$ 25.1	$ 4.2	$ 28.6	$ 27.4