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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
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-Section 50
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Goodwill and Intangible Assets (Schedule Of Goodwill) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 29, 2017	Dec. 30, 2016	Aug. 31, 2016	Sep. 25, 2015	Apr. 16, 2015
Goodwill [Line Items]
Goodwill, Period Increase (Decrease)	$ (15.4)
Goodwill	3,482.7	$ 3,498.1
Goodwill, Gross	3,689.7	3,705.1
Goodwill, Impaired, Accumulated Impairment Loss	(207.0)	(207.0)
Specialty Brands [Member]
Goodwill [Line Items]
Goodwill	3,482.7
Goodwill, Gross		3,498.1
Goodwill, Impaired, Accumulated Impairment Loss	0.0	0.0
Specialty Generics [Member]
Goodwill [Line Items]
Goodwill, Gross	207.0	207.0
Goodwill, Impaired, Accumulated Impairment Loss	$ 207.0	$ 207.0
Stratatech [Member]
Goodwill [Line Items]
Goodwill			$ 55.1
Ikaria
Goodwill [Line Items]
Goodwill					$ 795.0
Therakos
Goodwill [Line Items]
Goodwill				$ 429.9