Segment Information (Details) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2017 USD ($)	Jun. 24, 2016 USD ($)	Jun. 30, 2017 USD ($) Segment	Jun. 24, 2016 USD ($)	Dec. 31, 2016 USD ($) Segment
Segment Reporting Information [Line Items]
Number of reportable segments | Segment			4		3
Net Sales [Abstract]
Net sales	$ 2,732	$ 2,664	$ 5,401	$ 5,017
Operating Income [Abstract]
Operating income	312	247	565	499
Depreciation and amortization [Abstract]
Depreciation and amortization	55	52	109	102
Total Assets [Abstract]
Total Assets	12,432		12,432		$ 11,865
Operating Segments [Member] | Aerospace Systems [Member]
Net Sales [Abstract]
Net sales	1,027	1,148	2,072	2,155
Operating Income [Abstract]
Operating income	70	70	139	176
Depreciation and amortization [Abstract]
Depreciation and amortization	14	14	27	27
Total Assets [Abstract]
Total Assets	2,628		2,628		2,535
Operating Segments [Member] | Electronic Systems [Member]
Net Sales [Abstract]
Net sales	788	679	1,548	1,294
Operating Income [Abstract]
Operating income	105	83	196	168
Depreciation and amortization [Abstract]
Depreciation and amortization	17	16	35	30
Total Assets [Abstract]
Total Assets	4,644		4,644		4,369
Operating Segments [Member] | Communication Systems [Member]
Net Sales [Abstract]
Net sales	555	499	1,098	976
Operating Income [Abstract]
Operating income	85	52	128	103
Depreciation and amortization [Abstract]
Depreciation and amortization	12	11	24	23
Total Assets [Abstract]
Total Assets	2,117		2,117		2,031
Operating Segments [Member] | Sensor Systems [Member]
Net Sales [Abstract]
Net sales	394	367	748	657
Operating Income [Abstract]
Operating income	52	42	102	52
Depreciation and amortization [Abstract]
Depreciation and amortization	12	11	23	22
Total Assets [Abstract]
Total Assets	2,599		2,599		2,433
Corporate [Member]
Total Assets [Abstract]
Total Assets	444		444		$ 497
Elimination of Intercompany Sales [Member]
Net Sales [Abstract]
Net sales	$ (32)	$ (29)	$ (65)	$ (65)