GOODWILL AND INTANGIBLE ASSETS - Intangible Assets (Details) - USD ($) $ in Millions	Oct. 01, 2021	Oct. 02, 2020
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 138.1	$ 138.9
Accumulated Amortization	(87.4)	(71.4)
Net Carrying Amount	50.7	67.5
Acquired existing technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	74.2	74.9
Accumulated Amortization	(45.5)	(37.5)
Net Carrying Amount	28.7	37.4
Patents, licenses and other
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	12.8	12.8
Accumulated Amortization	(10.9)	(9.7)
Net Carrying Amount	1.9	3.1
Customer contracts and supplier relationship
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	51.1	51.2
Accumulated Amortization	(31.0)	(24.2)
Net Carrying Amount	$ 20.1	$ 27.0