Discontinued Operations and Divestitures Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 24, 2016	Jun. 30, 2017	Jun. 24, 2016	Jan. 30, 2017	Jan. 27, 2017	Nov. 27, 2015
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Discontinued operation, (loss) income from discontinued operations, net of tax	$ 7.8	$ (22.6)	$ (362.5)	$ (42.4)
Income from discontinued operations			8.4
Nuclear Imaging
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Consideration						$ 690.0
Disposal Group, Including Discontinued Operation, Upfront Consideration						574.0
Disposal Group, Including Discontinued Operation, Contingent Consideration Maximum Amount						$ 77.0
(Loss) gain on divestiture of discontinued operations	(5.9)	0.0	363.4	0.0
Discontinued operation, income tax (benefit) expense	0.1	(8.8)	(5.3)	(19.0)
Discontinued Operation, Tax Effect of Gain (Loss) from Disposal of Discontinued Operation			4.3
Disposal Group, Including Discontinued Operations, Net Sales	0.0	104.0	31.6	206.2
Discontinued operation, (loss) income from discontinued operations, net of tax	5.8	(19.0)	(366.5)	(40.8)
Income from discontinued operations	0.0	27.8	8.4	59.8
Other Tax Expense (Benefit)			1.0
(Loss) income from discontinued operations, before income taxes	(5.9)	27.8	371.8	59.8
Contrast Media and Delivery Systems
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Consideration							$ 270.0
(Loss) gain on divestiture of discontinued operations		1.7
Discontinued operation, income tax (benefit) expense		0.0		0.2
Disposal Group, Including Discontinued Operations, Net Sales		$ 0.7		1.8
Discontinued operation, (loss) income from discontinued operations, net of tax				$ 0.0
Intrathecal Therapy
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal group, not discontinued operation, consideration					$ 203.0
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal	$ (2.1)		57.0
Disposal group, not discontinued operation, upfront consideration					17.0
Disposal Group, not discontinued operation, Note Receivable Consideration					154.0
Disposal group, not discontinued operation, contingent consideration					32.0
Disposal group, not discontinued operation, fixed consideration					171.0
Disposal Group, Not Discontinued Operations, Other Commitment					$ 7.3
Other Intangible Assets | Intrathecal Therapy
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal			(48.7)
Goodwill | Intrathecal Therapy
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal			$ (49.8)