STOCKHOLDERS' EQUITY - Schedule of Amounts Reclassified Out of Other Comprehensive Earnings (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Apr. 03, 2020	Mar. 29, 2019	Apr. 03, 2020	Mar. 29, 2019
Reclassification Adjustment Out Of Accumulated Comprehensive Income [Line Items]
Operating earnings	$ 54.9	$ 109.8	$ 164.9	$ 221.5
Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment Out Of Accumulated Comprehensive Income [Line Items]
Operating earnings	0.3	(0.3)	0.2	(0.7)
Reclassification out of Accumulated Other Comprehensive Income | Unrealized loss on defined benefit pension and post-retirement benefit plans
Reclassification Adjustment Out Of Accumulated Comprehensive Income [Line Items]
Other income (expense), net	(0.8)	(0.3)	(1.7)	(0.7)
Reclassification out of Accumulated Other Comprehensive Income | Unrealized earnings on cash flow hedging instruments
Reclassification Adjustment Out Of Accumulated Comprehensive Income [Line Items]
Revenues	$ 1.1	$ 0.0	$ 1.9	$ 0.0