Goodwill and Identifiable Intangible Assets - Changes in Goodwill by Segment (Detail) $ in Millions	6 Months Ended
	Jun. 24, 2016 USD ($)
Goodwill [Line Items]
Goodwill	$ 6,723
Accumulated impairment losses	(442)
Balance, Beginning	6,281
Business acquisitions	19
Foreign currency translation adjustments	6
Balance, Ending	6,306
Goodwill	6,748
Accumulated impairment losses	(442)
Goodwill, net of accumulated impairment losses	6,306
Electronic Systems [Member]
Goodwill [Line Items]
Goodwill	3,994
Accumulated impairment losses	(69)
Balance, Beginning	3,925
Business acquisitions	(3)
Foreign currency translation adjustments	(8)
Balance, Ending	3,914
Goodwill	3,983
Accumulated impairment losses	(69)
Goodwill, net of accumulated impairment losses	3,914
Aerospace Systems [Member]
Goodwill [Line Items]
Goodwill	1,691
Accumulated impairment losses	(338)
Balance, Beginning	1,353
Business acquisitions
Foreign currency translation adjustments	14
Balance, Ending	1,367
Goodwill	1,705
Accumulated impairment losses	(338)
Goodwill, net of accumulated impairment losses	1,367
Communication Systems [Member]
Goodwill [Line Items]
Goodwill	1,038
Accumulated impairment losses	(35)
Balance, Beginning	1,003
Business acquisitions	22
Foreign currency translation adjustments
Balance, Ending	1,025
Goodwill	1,060
Accumulated impairment losses	(35)
Goodwill, net of accumulated impairment losses	$ 1,025