Business Combinations (Fair Values of the Business Combinations and Allocations for the Acquisitions Completed) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended	12 Months Ended
	Apr. 03, 2022	Jul. 03, 2022	Jan. 02, 2022
Business Acquisition [Line Items]
Goodwill		$ 7,243,492	$ 7,416,584
Fiscal Year 2022 Acquisitions [Member] | United States of America, Dollars
Business Acquisition [Line Items]
Business Acquisition, Cost of Acquired Entity, Cash Paid Including Working Capital And Other Adjustments		13,500
Fiscal Year 2021 Other Acquisitions [Member] | United States of America, Dollars
Business Acquisition [Line Items]
Business Acquisition, Cost of Acquired Entity, Cash Paid Including Working Capital And Other Adjustments			318,600
Fiscal Year 2021 Acquisitions (Excluding BioLegend) [Member]
Business Acquisition [Line Items]
Business Acquisition, Cost of Acquired Entity, Cash Paid			1,128,584
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable			0
Business Combination, Consideration Transferred, Liabilities Incurred			2,910
Business Acquisition, Cost of Acquired Entity, Liabilities Incurred, Contingent Consideration at Fair Value	$ (45,031)
Business Acquisition, Cost Of Acquired Entity, Working Capital Adjustments			(183)
Cash Acquired			(195,010)
Business Combination, Consideration Transferred			981,698
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets		71,916
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment			26,507
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets		15,527
Goodwill		545,729
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities, Total		(81,612)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Deferred Revenue			(1,197)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities			(4,628)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt		(61,779)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net			981,698
Fiscal Year 2021 Acquisitions (Excluding BioLegend) [Member] | United States of America, Dollars
Business Acquisition [Line Items]
Business Acquisition, Cost of Acquired Entity, Cash Paid Including Working Capital And Other Adjustments			1,200,000
BioLegend [Member]
Business Acquisition [Line Items]
Business Acquisition, Cost of Acquired Entity, Cash Paid			3,336,115
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable			2,638,369
Business Combination, Consideration Transferred, Liabilities Incurred			6,857
Business Acquisition, Cost of Acquired Entity, Liabilities Incurred, Contingent Consideration at Fair Value			0
Business Acquisition, Cost Of Acquired Entity, Working Capital Adjustments			0
Cash Acquired			(292,377)
Business Combination, Consideration Transferred			5,688,964
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets			184,704
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment			147,200
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets			9,330
Goodwill		3,511,485
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities, Total			(668,920)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Deferred Revenue			0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities			0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt		(39,014)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net			5,688,964
BioLegend [Member] | United States of America, Dollars
Business Acquisition [Line Items]
Business Acquisition, Cost of Acquired Entity, Cash Paid Including Working Capital And Other Adjustments			5,700,000
Oxford Immunotec [Member] | United States of America, Dollars
Business Acquisition [Line Items]
Business Acquisition, Cost of Acquired Entity, Cash Paid Including Working Capital And Other Adjustments			590,900
Nexcelom Bioscience [Member] | United States of America, Dollars
Business Acquisition [Line Items]
Business Acquisition, Cost of Acquired Entity, Cash Paid Including Working Capital And Other Adjustments			267,300
Core Technology [Member] | Fiscal Year 2021 Acquisitions (Excluding BioLegend) [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	290,089
Core Technology [Member] | BioLegend [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles			782,400
Trade Names [Member] | Fiscal Year 2021 Acquisitions (Excluding BioLegend) [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles		39,476
Trade Names [Member] | BioLegend [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles			38,000
Customer Relationships [Member] | Fiscal Year 2021 Acquisitions (Excluding BioLegend) [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	$ 141,670
Customer Relationships [Member] | BioLegend [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles			1,714,800
License | Fiscal Year 2021 Acquisitions (Excluding BioLegend) [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles			0
License | BioLegend [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles			8,979
Diagnostics [Member]
Business Acquisition [Line Items]
Goodwill		1,928,264	1,970,350
Discovery & Analytical Solutions [Member]
Business Acquisition [Line Items]
Goodwill		$ 5,315,228	$ 5,446,234