Segment Information - Summary of Segment Information (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 24, 2016	Jun. 26, 2015	Jun. 24, 2016	Jun. 26, 2015	Dec. 31, 2015
Net Sales:
Net sales	$ 2,664	$ 2,543	$ 5,017	$ 5,031
Operating Income (Loss):
Gain (loss) related to business divestitures		2		(20)
Operating Income (loss)	247	153	499	340
Depreciation and Amortization:
Depreciation and amortization	52	52	102	104
Total Assets:
Assets of discontinued operations					$ 664
Total Assets	11,700		11,700		12,067
Operating Segments [Member]
Operating Income (Loss):
Operating Income (loss)	247	151	499	360
Operating Segments [Member] | Electronic Systems [Member]
Net Sales:
Net sales	1,043	1,069	1,946	2,115
Operating Income (Loss):
Operating Income (loss)	125	118	220	231
Depreciation and Amortization:
Depreciation and amortization	27	27	52	55
Total Assets:
Total Assets	6,559		6,559		6,426
Operating Segments [Member] | Aerospace Systems [Member]
Net Sales:
Net sales	1,148	997	2,155	2,024
Operating Income (Loss):
Operating Income (loss)	70	(18)	176	42
Depreciation and Amortization:
Depreciation and amortization	14	12	27	24
Total Assets:
Total Assets	2,679		2,679		2,630
Operating Segments [Member] | Communication Systems [Member]
Net Sales:
Net sales	499	517	976	972
Operating Income (Loss):
Operating Income (loss)	52	51	103	87
Depreciation and Amortization:
Depreciation and amortization	11	13	23	25
Total Assets:
Total Assets	2,073		2,073		1,984
Corporate [Member]
Total Assets:
Total Assets	389		389		$ 363
Elimination of Intercompany Sales [Member]
Net Sales:
Net sales	$ (26)	$ (40)	$ (60)	$ (80)