Discontinued Operations and Divestitures Discontinued Operations (Significant Cash and Non-Cash Transactions) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 30, 2018	Mar. 31, 2017
Specialty Generics Disposal Group
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Depreciation, Discontinued Operations	$ 8.9	$ 15.5
Capital Expenditure, Discontinued Operations	8.7	16.3
Amortization, Discontinued Operations	1.7	5.3
Nuclear Imaging
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Depreciation, Discontinued Operations	0.0	0.0
Capital Expenditure, Discontinued Operations	$ 0.0	$ 0.3