Revenue (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 30, 2019	Mar. 31, 2018
Disaggregation of Revenue [Line Items]
Revenues		$ 6,125	$ 5,853
North America [Member]
Disaggregation of Revenue [Line Items]
Revenues	[1]	3,059	2,903
Europe [Member]
Disaggregation of Revenue [Line Items]
Revenues	[1]	1,519	1,518
Asia Pacific [Member]
Disaggregation of Revenue [Line Items]
Revenues	[1]	1,363	1,264
Other Regions [Member]
Disaggregation of Revenue [Line Items]
Revenues	[1]	184	168
Consumables [Member]
Disaggregation of Revenue [Line Items]
Revenues		3,230	3,111
Instruments [Member]
Disaggregation of Revenue [Line Items]
Revenues		1,490	1,417
Service [Member]
Disaggregation of Revenue [Line Items]
Revenues		$ 1,405	$ 1,325

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