Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Intangible Assets Including Estimates of Assets Acquired

Intangible assets, including the preliminary fair values of those acquired through the acquisition of the IS&GS Business, consisted of the following:

	March 31, 2017							December 30, 2016
	Gross carrying value		Accumulated amortization			Net carrying value		Gross carrying value		Accumulated amortization			Net carrying value
	(in millions)
Finite-lived intangible assets:
Programs and contract intangibles	$	1,450	$	(57	)	$	1,393	$	1,450	$	(25	)	$	1,425
Backlog	200		(91		)	109		200		(54		)	146
Software and technology	61		(48		)	13		61		(48		)	13
Customer relationships	6		(5		)	1		6		(5		)	1
Total finite-lived intangible assets	1,717		(201		)	1,516		1,717		(132		)	1,585
Indefinite-lived intangible assets:
Trade names	4		—			4		4		—			4
Total intangible assets	$	1,721	$	(201	)	$	1,520	$	1,721	$	(132	)	$	1,589

Schedule of Amortization Expense for Finite-Lived Intangible Assets

The estimated annual amortization expense as of March 31, 2017, was as follows:

Fiscal Year Ending
	(in millions)
2017 (remainder of year)	$	208
2018	213
2019	188
2020	165
2021	139
2022 and thereafter	603
	$	1,516