Discontinued Operations Discontinued Operations (Income) Loss from Discontinued Operations (Details) - USD ($) $ in Millions	3 Months Ended
	Dec. 30, 2016	Dec. 25, 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	$ 23.6	$ 107.3
Nuclear Imaging
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operations, Net Sales	99.4	103.6
Discontinued operation, costs of goods sold	44.7	62.8
Discontinued operation, selling general and administrative expense	16.4	19.2
Disposal Group, Including Discontinued Operation, Restructuring Charges, Net	0.0	2.2
Discontinued operation, other	0.2	2.1
Discontinued operation, income (loss) from discontinued operation before tax phase out period	38.1	17.3
Discontinued operation, income tax (benefit) expense	15.3	5.2
Discontinued operation, (loss) income from discontinued operations, net of tax	22.8	12.1
Contrast Media and Delivery Systems
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operations, Net Sales	0.0	59.2
Discontinued operation, costs of goods sold	0.0	44.8
Discontinued operation, selling general and administrative expense	0.0	18.2
Discontinued operation, other	0.0	1.1
Discontinued operation, income (loss) from discontinued operation before tax phase out period	0.0	(4.9)
Discontinued operation, gain (loss) on disposal of discontinued operation, before income tax	0.0	97.0
Discontinued operation, income (loss) from discontinued operation, before income tax	0.0	92.1
Discontinued operation, income tax (benefit) expense	0.0	(2.7)
Discontinued operation, (loss) income from discontinued operations, net of tax	$ 0.0	$ 94.8