Employee Severance and Termination Costs - Employee Severance and Other Termination Costs Incurred by Reportable Segment (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 24, 2016	Jun. 26, 2015	Jun. 24, 2016	Jun. 26, 2015	Dec. 31, 2015
Restructuring Cost and Reserve [Line Items]
Employee severance and other termination costs	$ 4	$ 4	$ 6	$ 6	$ 18
Electronic Systems [Member]
Restructuring Cost and Reserve [Line Items]
Employee severance and other termination costs	3	2	4	2
Aerospace Systems [Member]
Restructuring Cost and Reserve [Line Items]
Employee severance and other termination costs		1		2
Communication Systems [Member]
Restructuring Cost and Reserve [Line Items]
Employee severance and other termination costs	$ 1	$ 1	$ 2	$ 2