DISCONTINUED OPERATIONS - Cash Flow Disclosures (Details) - USD ($) $ in Millions	6 Months Ended
	Mar. 30, 2018	Mar. 31, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Share-based compensation expense	$ 21.2	$ 23.6
Depreciation expense	25.4	31.9
Amortization expense	10.4	9.1
Purchases of property, plant and equipment	$ (17.8)	(32.1)
Discontinued Operations, Disposed of by Means Other than Sale, Spinoff
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Share-based compensation expense		2.0
Depreciation expense		4.4
Amortization expense		1.8
Purchases of property, plant and equipment		$ (6.3)