Business Combinations (Schedule Of Total Intangible Assets) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 29, 2017	Dec. 30, 2016
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 1,555.3	$ 1,348.7
Accumulated Amortization	(1,190.5)	(1,015.4)
Total	364.8	333.3
Developed Product Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	915.3	794.8
Accumulated Amortization	(729.9)	(620.6)
Total	$ 185.4	174.2
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	6 years
Trade Names And Trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 58.7	50.9
Accumulated Amortization	(48.6)	(42.9)
Total	$ 10.1	8.0
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	5 years
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 512.1	438.7
Accumulated Amortization	(351.3)	(294.1)
Total	$ 160.8	144.6
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	7 years
Distribution Rights And Other Intellectual Properties [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 69.2	64.3
Accumulated Amortization	(60.7)	(57.8)
Total	$ 8.5	$ 6.5
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	6 years