Goodwill and Intangible Assets, Net (Changes in the Carrying Amount of Goodwill) (Details) $ in Thousands	3 Months Ended
	Apr. 03, 2022 USD ($)
Changes in the carrying amount of goodwill
Balance at beginning of period	$ 7,416,584
Foreign currency translation	(51,927)
Goodwill, Acquisition, Earn Outs and Other Adjustments	2,627
Balance at end of period	7,367,284
Diagnostics [Member]
Changes in the carrying amount of goodwill
Balance at beginning of period	1,970,350
Foreign currency translation	(13,795)
Goodwill, Acquisition, Earn Outs and Other Adjustments	3,712
Balance at end of period	1,960,267
Discovery & Analytical Solutions [Member]
Changes in the carrying amount of goodwill
Balance at beginning of period	5,446,234
Foreign currency translation	(38,132)
Goodwill, Acquisition, Earn Outs and Other Adjustments	(1,085)
Balance at end of period	$ 5,407,017