Segment Information - Segment Information by Reportable Segments (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 29, 2018	Sep. 30, 2017	Sep. 29, 2018	Sep. 30, 2017
Segment Reporting Information [Line Items]
Total Net sales	$ 1,092	$ 935	$ 3,081	$ 2,696
Total operating income	162	91	431	189
AIT
Segment Reporting Information [Line Items]
Total Net sales	353		1,056
Operating Segments
Segment Reporting Information [Line Items]
Total Net sales	1,092	936	3,081	2,699
Total operating income	198	150	520	403
Operating Segments | AIT
Segment Reporting Information [Line Items]
Total Net sales	353	325	1,056	960
Total operating income	81	64	241	199
Operating Segments | EVM
Segment Reporting Information [Line Items]
Total Net sales	739	611	2,025	1,739
Total operating income	117	86	279	204
Corporate, eliminations
Segment Reporting Information [Line Items]
Total Net sales	0	(1)	0	(3)
Total operating income	$ (36)	$ (59)	$ (89)	$ (214)