Revenues - Disaggregation of Revenue By Product Category And Segment (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jul. 01, 2017	Jun. 30, 2018	Jul. 01, 2017
Disaggregation of Revenue [Line Items]
Total Net sales	$ 1,012	$ 896	$ 1,989	$ 1,761
Net sales of tangible products
Disaggregation of Revenue [Line Items]
Total Net sales	889	779	1,728	1,514
Revenue from services and software
Disaggregation of Revenue [Line Items]
Total Net sales	123	$ 117	261	$ 247
AIT
Disaggregation of Revenue [Line Items]
Total Net sales	351		703
AIT | Net sales of tangible products
Disaggregation of Revenue [Line Items]
Total Net sales	322		635
AIT | Revenue from services and software
Disaggregation of Revenue [Line Items]
Total Net sales	29		68
EVM
Disaggregation of Revenue [Line Items]
Total Net sales	661		1,286
EVM | Net sales of tangible products
Disaggregation of Revenue [Line Items]
Total Net sales	567		1,093
EVM | Revenue from services and software
Disaggregation of Revenue [Line Items]
Total Net sales	$ 94		$ 193