Business Combinations (Schedule Of Intangible Assets) (Detail) - USD ($) $ in Millions	Sep. 29, 2017	Dec. 30, 2016
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross Carrying Amount	$ 1,555.9	$ 1,348.7
Intangible Assets, Accumulated Amortization	(1,150.1)	(1,015.4)
Total	405.8	333.3
Developed Product Technology [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross Carrying Amount	913.5	794.8
Intangible Assets, Accumulated Amortization	(704.9)	(620.6)
Total	208.6	174.2
Trade Names And Trademarks [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross Carrying Amount	58.6	50.9
Intangible Assets, Accumulated Amortization	(47.4)	(42.9)
Total	11.2	8.0
Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross Carrying Amount	511.6	438.7
Intangible Assets, Accumulated Amortization	(337.9)	(294.1)
Total	173.7	144.6
Distribution Rights And Other Intellectual Properties [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross Carrying Amount	72.2	64.3
Intangible Assets, Accumulated Amortization	(59.9)	(57.8)
Total	$ 12.3	$ 6.5