RESTRUCTURING AND RELATED CHARGES - Summary of Costs Incurred and Cumulative Costs By Cost Type (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jul. 04, 2021	Jun. 28, 2020	Jul. 04, 2021	Jun. 28, 2020
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges	$ 10.1	$ 12.2	$ 23.4	$ 61.6
Cumulative costs	141.1		141.1
Estimated future costs to be incurred	27.3		27.3
Termination Benefits
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges	5.0	0.5	8.3	11.9
Cumulative costs	25.0		25.0
Estimated future costs to be incurred	1.0		1.0
Other Costs
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges	5.1	$ 11.7	15.1	$ 49.7
Cumulative costs	116.1		116.1
Estimated future costs to be incurred	$ 26.3		$ 26.3