Segment Information & Geographic Data (Details) $ in Millions	3 Months Ended
	Mar. 28, 2020 USD ($) segment	Mar. 30, 2019 USD ($)
Segment Reporting [Abstract]
Number of reportable segments | segment	2
Segment Reporting Information [Line Items]
Total Net sales	$ 1,052	$ 1,066
Total Operating income	151	159
AIT
Segment Reporting Information [Line Items]
Total Net sales	371	357
EVM
Segment Reporting Information [Line Items]
Total Net sales	681	709
Operating Segments
Segment Reporting Information [Line Items]
Total Operating income	177	193
Operating Segments | AIT
Segment Reporting Information [Line Items]
Total Operating income	89	92
Operating Segments | EVM
Segment Reporting Information [Line Items]
Total Operating income	88	101
Corporate, eliminations
Segment Reporting Information [Line Items]
Total Operating income	$ (26)	$ (34)