Revenue (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 26, 2020	Sep. 28, 2019	Sep. 26, 2020	Sep. 28, 2019
Disaggregation of Revenue [Line Items]
Revenues		$ 8,521	$ 6,272	$ 21,668	$ 18,713
North America [Member]
Disaggregation of Revenue [Line Items]
Revenues	[1]	4,587	3,220	11,418	9,509
Europe [Member]
Disaggregation of Revenue [Line Items]
Revenues	[1]	2,032	1,514	5,464	4,569
Asia Pacific [Member]
Disaggregation of Revenue [Line Items]
Revenues	[1]	1,607	1,349	4,054	4,080
Other Regions [Member]
Disaggregation of Revenue [Line Items]
Revenues	[1]	295	189	732	555
Consumables [Member]
Disaggregation of Revenue [Line Items]
Revenues		4,956	3,228	12,214	9,726
Instruments [Member]
Disaggregation of Revenue [Line Items]
Revenues		1,826	1,570	4,448	4,619
Service [Member]
Disaggregation of Revenue [Line Items]
Revenues		$ 1,739	$ 1,474	$ 5,006	$ 4,368

[1] Revenues are attributed to regions based on customer location.