OTHER FINANCIAL INFORMATION - Unfulfilled Performance Obligations (Details) - USD ($) $ in Millions	Mar. 29, 2019	Sep. 28, 2018
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-03-30
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Unfulfilled Performance Obligations	$ 1,143.7
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	2,287.3
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	$ 854.6
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		$ 2,195.7