Business Combinations (Schedule Of Total Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 30, 2011	Dec. 31, 2010
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount		$ 463,043
Accumulated Amortization		(258,095)
Net Carrying Amount	476,791	204,948
Tekla Corporation [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	207,674
Accumulated Amortization	(11,097)
Other Acquisitions [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	607,767
Accumulated Amortization	(327,553)
Developed Product Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount		247,575
Accumulated Amortization		(148,171)
Net Carrying Amount	243,879	99,404
Developed Product Technology [Member] | Tekla Corporation [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	107,260
Accumulated Amortization	(5,731)
Developed Product Technology [Member] | Other Acquisitions [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	329,837
Accumulated Amortization	(187,487)
Trade Names And Trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount		22,136
Accumulated Amortization		(16,449)
Net Carrying Amount	15,630	5,687
Trade Names And Trademarks [Member] | Tekla Corporation [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	7,648
Accumulated Amortization	(409)
Trade Names And Trademarks [Member] | Other Acquisitions [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	26,915
Accumulated Amortization	(18,524)
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount		143,125
Accumulated Amortization		(68,104)
Net Carrying Amount	185,710	75,021
Customer Relationships [Member] | Tekla Corporation [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	83,929
Accumulated Amortization	(4,485)
Customer Relationships [Member] | Other Acquisitions [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	196,354
Accumulated Amortization	(90,088)
Distribution Rights And Other Intellectual Properties [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount		50,207
Accumulated Amortization		(25,371)
Net Carrying Amount	31,572	24,836
Distribution Rights And Other Intellectual Properties [Member] | Tekla Corporation [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	8,837
Accumulated Amortization	(472)
Distribution Rights And Other Intellectual Properties [Member] | Other Acquisitions [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	54,661
Accumulated Amortization	$ (31,454)