DISCONTINUED OPERATIONS - Cash Flow Disclosures (Details) - USD ($) $ in Millions	3 Months Ended
	Dec. 29, 2017	Dec. 30, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Share-based compensation expense	$ 10.7	$ 11.5
Depreciation expense	12.8	17.2
Amortization expense	6.3	5.1
Purchases of property, plant and equipment	$ (9.3)	(17.2)
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		1.3
Depreciation expense		3.3
Amortization expense		1.3
Purchases of property, plant and equipment		$ (5.0)