DISCONTINUED OPERATIONS - Cash Flow Disclosures (Details) - USD ($) $ in Millions	9 Months Ended
	Jun. 29, 2018	Jun. 30, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Share-based compensation expense	$ 34.0	$ 32.7
Depreciation expense	38.3	45.2
Amortization expense	15.2	13.3
Purchases of property, plant and equipment	$ (30.8)	(40.4)
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		4.8
Amortization expense		1.8
Purchases of property, plant and equipment		$ (6.4)