GOODWILL AND INTANGIBLE ASSETS - Gross Carrying Amount and Accumulated Amortization of Intangible Assets (Details) - USD ($) $ in Millions	Jul. 03, 2020	Sep. 27, 2019
Finite Lived Intangible Assets [Line Items]
Finite lived intangible assets, gross	$ 402.3	$ 408.7
Accumulated Amortization	(148.8)	(120.7)
Net Carrying Amount	253.5	288.0
In-process research and development with indefinite lives	12.2	12.7
Total intangible assets	414.5	421.4
Total intangible assets, net	265.7	300.7
Technologies and patents
Finite Lived Intangible Assets [Line Items]
Finite lived intangible assets, gross	226.2	226.4
Accumulated Amortization	(104.2)	(85.9)
Net Carrying Amount	122.0	140.5
Customer contracts, supplier relationships, and partner relationships
Finite Lived Intangible Assets [Line Items]
Finite lived intangible assets, gross	117.8	121.1
Accumulated Amortization	(32.5)	(25.7)
Net Carrying Amount	85.3	95.4
Trade names
Finite Lived Intangible Assets [Line Items]
Finite lived intangible assets, gross	52.2	55.1
Accumulated Amortization	(6.0)	(3.0)
Net Carrying Amount	46.2	52.1
Other
Finite Lived Intangible Assets [Line Items]
Finite lived intangible assets, gross	6.1	6.1
Accumulated Amortization	(6.1)	(6.1)
Net Carrying Amount	$ 0.0	$ 0.0