OTHER FINANCIAL INFORMATION - Unfulfilled Performance Obligations (Details) - USD ($) $ in Millions	Jun. 28, 2019	Sep. 28, 2018
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-06-29
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Unfulfilled Performance Obligations	$ 824.6
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-09-28
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Unfulfilled Performance Obligations	2,575.5
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-10-03
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Unfulfilled Performance Obligations	$ 1,037.0
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-10-02
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Unfulfilled Performance Obligations		$ 2,118.7