Industry Segment and Geographic Area Information Schedule of Total Assets by Segment (Details) - USD ($) $ in Thousands	Jan. 02, 2022	Jan. 03, 2021	Dec. 29, 2019
Schedule of Total Assets, by segment [Line Items]
Assets	$ 15,000,554	$ 7,960,315
Diagnostics [Member]
Schedule of Total Assets, by segment [Line Items]
Assets	4,692,816	4,228,943	$ 3,368,598
Discovery & Analytical Solutions [Member]
Schedule of Total Assets, by segment [Line Items]
Assets	10,177,834	3,600,860	3,082,917
Corporate [Member]
Schedule of Total Assets, by segment [Line Items]
Assets	$ 129,904	$ 130,512	87,049
All Segments [Member]
Schedule of Total Assets, by segment [Line Items]
Assets			$ 6,538,564