TAXES ON INCOME - Valuation Allowance (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 01, 2021	Oct. 02, 2020	Sep. 27, 2019
Deferred Tax Assets Valuation Allowance [Roll Forward]
Valuation allowance balance–beginning of fiscal year	$ 28.7	$ 18.8	$ 4.0
Increases resulting from business combinations	0.0	0.0	12.0
Other increases	5.4	10.2	2.8
Other decreases	(3.9)	(0.3)	0.0
Valuation allowance balance—end of fiscal year	$ 30.2	$ 28.7	$ 18.8