DISCONTINUED OPERATIONS (Details) - USD ($) $ in Millions			12 Months Ended
	Jan. 28, 2017	Jan. 25, 2017	Sep. 29, 2017	Dec. 29, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Contribution of cash and cash equivalents	$ 81.3
Varex Imaging | 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]
Cash received from Varex term facility			$ 200.0
Net assets				$ 9.2
Varex Imaging
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Receipt of excess cash and cash equivalents			38.7
Varex Term Facility
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from term facility		$ 203.0
Transfer of debt outstanding			203.0
Retained Earnings | Varex Imaging
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Distribution of Varex			$ 334.1
Minimum | Varex Imaging
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Transition services agreement	60 days
Maximum | Varex Imaging
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Transition services agreement	24 months