Segment Information (Details) $ in Millions	3 Months Ended
	Mar. 30, 2018 USD ($) Segment	Mar. 31, 2017 USD ($)	Jan. 01, 2018 USD ($)	Dec. 31, 2017 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | Segment	4
Net Sales [Abstract]
Net sales	$ 2,371	$ 2,321
Operating Income [Abstract]
Operating income	251	237
Depreciation and amortization [Abstract]
Depreciation and amortization	56	52
Total Assets:
Assets held for sale	136		$ 138	$ 135
Assets of discontinued operations	287		285	306
Total Assets	12,873		$ 12,730	12,729
Electronic Systems [Member]
Net Sales [Abstract]
Net sales	785
Aerospace Systems [Member]
Net Sales [Abstract]
Net sales	686
Communication Systems [Member]
Net Sales [Abstract]
Net sales	493
Sensor Systems [Member]
Net Sales [Abstract]
Net sales	407
Operating Segments [Member] | Electronic Systems [Member]
Net Sales [Abstract]
Net sales	802	760
Operating Income [Abstract]
Operating income	108	90
Depreciation and amortization [Abstract]
Depreciation and amortization	19	18
Total Assets:
Total Assets	4,966			4,796
Operating Segments [Member] | Aerospace Systems [Member]
Net Sales [Abstract]
Net sales	699	701
Operating Income [Abstract]
Operating income	57	56
Depreciation and amortization [Abstract]
Depreciation and amortization	12	11
Total Assets:
Total Assets	2,163			2,014
Operating Segments [Member] | Communication Systems [Member]
Net Sales [Abstract]
Net sales	499	543
Operating Income [Abstract]
Operating income	37	42
Depreciation and amortization [Abstract]
Depreciation and amortization	13	12
Total Assets:
Total Assets	2,128			2,063
Operating Segments [Member] | Sensor Systems [Member]
Net Sales [Abstract]
Net sales	412	354
Operating Income [Abstract]
Operating income	49	49
Depreciation and amortization [Abstract]
Depreciation and amortization	12	11
Total Assets:
Total Assets	2,814			2,706
Corporate [Member]
Total Assets:
Total Assets	379			$ 709
Elimination of Intercompany Sales [Member]
Net Sales [Abstract]
Net sales	$ (41)	$ (37)