Discontinued Operations Narrative (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended	9 Months Ended
	Jun. 24, 2016	Dec. 25, 2015	Jun. 26, 2015	Mar. 25, 2016	Jun. 24, 2016	Jun. 26, 2015	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	$ 3.6		$ 2.4		$ 96.8	$ 31.3
Contrast Media and Delivery Systems
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Discontinued operation, income tax (benefit) expense	0.0	$ (0.7)	4.5	$ (2.2)	(2.9)	5.4
Disposal Group, Including Discontinued Operation, Consideration							$ 270.0
Discontinued operation, (loss) income from discontinued operations, net of tax	1.7		1.9		94.8	7.9
Discontinued operation, income (loss) from discontinued operation before tax phase out period	0.0		6.4		(7.1)	13.3
Discontinued operation, gain (loss) on disposal of discontinued operation, before income tax	1.7		0.0		99.0	0.0
Mallinckrodt Baker
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	$ 1.9		$ 0.5		$ 2.0	0.9
Tastemaker [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Discontinued Operation, Provision for Loss (Gain) on Disposal, Net of Tax						$ 22.5