Segment Information (Tables)

3 Months Ended

Mar. 30, 2018

Disaggregation of Revenue [Line Items]

The tables below present net sales, operating income, depreciation and amortization and total assets by reportable segment.



	First Quarter Ended
	March 30, 2018			March 31, 2017
	(in millions)
Net Sales:
Electronic Systems	$	802		$	760
Aerospace Systems	699			701
Communication Systems	499			543
Sensor Systems	412			354
Elimination of intercompany sales	(41		)	(37		)
Consolidated total	$	2,371		$	2,321
Operating Income:
Electronic Systems	$	108		$	90
Aerospace Systems	57			56
Communication Systems	37			42
Sensor Systems	49			49
Consolidated total	$	251		$	237
Depreciation and amortization:
Electronic Systems	$	19		$	18
Aerospace Systems	12			11
Communication Systems	13			12
Sensor Systems	12			11
Consolidated total	$	56		$	52



	March 30, 2018		December 31, 2017
	(in millions)
Total Assets:
Electronic Systems	$	4,966	$	4,796
Aerospace Systems	2,163		2,014
Communication Systems	2,128		2,063
Sensor Systems	2,814		2,706
Corporate	379		709
Assets held for sale	136		135
Assets of discontinued operations	287		306
Consolidated total	$	12,873	$	12,729

Revenue by End Customer [Member]

Disaggregation of Revenue [Line Items]

Disaggregation of Revenue

The table below presents total net sales disaggregated by end customer.



	First Quarter Ended March 30, 2018
End Customer	Electronic Systems		Aerospace Systems		Communication Systems		Sensor Systems		Consolidated L3
					(in millions)
Total DoD	$	417	$	568	$	371	$	206	$	1,562
Other U.S. Government	39		5		24		25		93
Total U.S. Government	456		573		395		231		1,655
Foreign governments ⁽¹⁾	68		103		34		126		331
Commercial — foreign	167		8		21		21		217
Commercial — domestic	94		2		43		29		168
Total	$	785	$	686	$	493	$	407	$	2,371

__________________


⁽¹⁾	Includes sales under foreign military sales agreements, which are made directly between the U.S. Government and foreign governments.

Revenue by Contract Type [Member]

Disaggregation of Revenue [Line Items]

Disaggregation of Revenue

The table below presents total net sales disaggregated by contract type.



	First Quarter Ended March 30, 2018
Contract Type	Electronic Systems		Aerospace Systems		Communication Systems		Sensor Systems		Consolidated L3
					(in millions)
Fixed-price⁽¹⁾	$	664	$	366	$	329	$	333	$	1,692
Cost-plus⁽²⁾	108		269		148		71		596
Time-and-material	13		51		16		3		83
Total sales	$	785	$	686	$	493	$	407	$	2,371

__________________


⁽¹⁾	Includes fixed-price incentive fee type contracts, which contributed approximately 2% to the Company's total net sales.


⁽²⁾	Includes cost-plus award and incentive fee type contracts, which contributed approximately 4% to the Company's total net sales.

Revenue by Deliverable Type [Member]

Disaggregation of Revenue [Line Items]

Disaggregation of Revenue

The table below presents total net sales disaggregated by the type of deliverable, which is determined by the Company at the performance obligation level.



	First Quarter Ended March 30, 2018
Sales by Deliverable Type	Electronic Systems		Aerospace Systems		Communication Systems		Sensor Systems		Consolidated L3
					(in millions)
Products	$	560	$	372	$	364	$	350	$	1,646
Services	225		314		129		57		725
Total sales	$	785	$	686	$	493	$	407	$	2,371

Revenue by Revenue Recognition Method [Member]

Disaggregation of Revenue [Line Items]

Disaggregation of Revenue

The table below presents total net sales disaggregated based on the revenue recognition method applied.



	First Quarter Ended March 30, 2018
Revenue Recognition Method	Electronic Systems		Aerospace Systems		Communication Systems		Sensor Systems		Consolidated L3
					(in millions)
Cost to cost method	$	533	$	666	$	390	$	213	$	1,802
Point in time	194		2		77		159		432
Output method	51		—		7		16		74
Billing method	7		18		19		19		63
Total sales	$	785	$	686	$	493	$	407	$	2,371