13. SEGMENT INFORMATION

The Company’s business is organized into three reportable segments based on the nature of the products and services offered: (i) Space Systems; (ii) Imagery; and (iii) Services. The Space Systems reportable segment supplies space-based and ground-based infrastructure and information solutions including communication and imaging satellites, satellite payloads and antenna subsystems, space-based and airborne surveillance solutions, robotic systems and associated ground infrastructure and support services. The Imagery segment is a supplier of high resolution Earth imagery and radar data sourced from the Company owned satellite constellations and third-party providers. The Services segment combines imagery, analytic expertise and innovative technology to deliver integrated intelligence solutions to customers.

Transactions between segments are generally negotiated and accounted for under terms and conditions similar to other government and commercial contracts. The reconciling item “corporate and other unallocated expenses” includes items such as corporate office costs, regulatory costs, executive and director compensation, foreign exchange gains and losses, and fees for audit, legal and consulting services.

The Company’s Chief Operating Decision Maker (“CODM”) measures the performance of each segment based on revenue and Adjusted EBITDA. Adjusted EBITDA is defined as EBITDA adjusted for certain items affecting comparability as specified in the calculation. Other unallocated expenses include SSL retention costs and foreign exchange gains and losses which are not included in segment Adjusted EBITDA. The following table summarizes the operating performance of the Company’s segments:


	Three Months Ended March 31,
	2019		2018
Revenues:
Space Systems	$	274	$	293
Imagery		200		211
Services		68		70
Intersegment eliminations		(38)		(17)
Total revenues	$	504	$	557


Adjusted EBITDA:
Space Systems	$	10	$	28
Imagery		121		134
Services		7		4
Intersegment eliminations		(3)		(2)
Depreciation and amortization		(98)		(111)
Corporate and other unallocated expenses		(18)		(13)
Restructuring		(20)		—
Acquisition and integration related expense		(4)		(4)
Inventory impairment		(3)		—
CEO severance		(3)		—
Interest expense, net		(49)		(53)
Equity loss from joint ventures, net of tax		1		—
Net (loss) earnings before income taxes	$	(59)	$	(17)

The Company’s capital expenditures are as follows:


	Space						Corporate and
Three months ended March 31, 2019	Systems		Imagery		Services		eliminations		Total
Capital expenditures:
Property, plant and equipment	$	6	$	50	$	—	$	3	$	59
Intangible assets		1		13		—		—		14
	$	7	$	63	$	—	$	3	$	73

	Space						Corporate and
Three months ended March 31, 2018	Systems		Imagery		Services		eliminations		Total
Capital expenditures:
Property, plant and equipment	$	5	$	38	$	—	$	—	$	43
Intangible assets		—		17		—		—		17
	$	5	$	55	$	—	$	—	$	60

Substantially all of the Company’s long-lived tangible assets were in the United States as of March 31, 2019 and December 31, 2018.