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Goodwill and Intangible Assets (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 29, 2017	Sep. 30, 2016	Sep. 29, 2017	Sep. 30, 2016	Sep. 25, 2017	Dec. 30, 2016
Goodwill
Non-restructuring impairment charges	$ 0.0	$ 0.0	$ 0.0	$ 16.9
Goodwill	3,459.5		3,459.5			$ 3,498.1
Specialty Brands
Goodwill
Goodwill, Period Increase (Decrease)			38.6
Intrathecal Therapy
Goodwill
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal	$ (0.4)		56.6
Intrathecal Therapy \| Goodwill
Goodwill
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal			$ (49.8)
InfaCare Acquisition \| Goodwill
Goodwill
Goodwill					$ 13.3