Revenue (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 29, 2019	Jun. 30, 2018	Jun. 29, 2019	Jun. 30, 2018
Disaggregation of Revenue [Line Items]
Revenues		$ 6,316	$ 6,078	$ 12,441	$ 11,931
North America [Member]
Disaggregation of Revenue [Line Items]
Revenues	[1]	3,230	3,042	6,289	5,945
Europe [Member]
Disaggregation of Revenue [Line Items]
Revenues	[1]	1,536	1,549	3,055	3,067
Asia Pacific [Member]
Disaggregation of Revenue [Line Items]
Revenues	[1]	1,368	1,294	2,731	2,558
Other Regions [Member]
Disaggregation of Revenue [Line Items]
Revenues	[1]	182	193	366	361
Consumables [Member]
Disaggregation of Revenue [Line Items]
Revenues		3,268	3,178	6,498	6,289
Instruments [Member]
Disaggregation of Revenue [Line Items]
Revenues		1,559	1,530	3,049	2,947
Service [Member]
Disaggregation of Revenue [Line Items]
Revenues		$ 1,489	$ 1,370	$ 2,894	$ 2,695

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