16. SEGMENT INFORMATION

The Company’s business is organized into market sectors based on its products and services and has three reportable segments: (i) Space Systems; (ii) Imagery; and (iii) Services. The Company organizes its reportable segments based on the nature of the products and services offered. 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 expense” includes the portion of corporate costs not considered allocable to the segments, such as legal, management and administration, and other corporate unallocable costs.

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. The following table summarizes the operating performance of the Company’s segments:


	Year ended December 31,
	2018		2017		2016
Revenues:
Space Systems	$	1,129	$	1,270	$	1,421
Imagery		845		230		42
Services		266		144		100
Intersegment eliminations		(99)		(13)		(5)
Total Revenue	$	2,141	$	1,631	$	1,558


Adjusted EBITDA:
Space Systems	$	5	$	151	$	160
Imagery		518		143		23
Services		25		23		19
Intersegment eliminations		(22)		(1)		—
Depreciation and amortization		(449)		(161)		(72)
Corporate expense		(54)		(65)		(26)
Restructuring		(18)		(36)		(4)
Acquisition and integration related expense		(34)		(60)		—
Impairment losses, including inventory		(1,096)		—		—
Interest expense, net		(202)		(99)		(33)
Interest Income 1		1		1		—
Equity (income) loss from joint ventures, net of tax		(2)		—		—
Net (loss) earnings before income taxes	$	(1,328)	$	(104)	$	67

1Included in Other expense (income), net on the Consolidated Statements of Operations.

The Company’s capital expenditures are as follows:


	Space						Corporate and
Year ended December 31, 2018	Systems		Imagery		Services		eliminations		Total
Capital expenditures:
Property, plant and equipment	$	28	$	156	$	2	$	(30)	$	156
Intangible assets		6		55		1		—		62
	$	34	$	211	$	3	$	(30)	$	218

	Space						Corporate and
Year ended December 31, 2017	Systems		Imagery		Services		eliminations		Total
Capital expenditures:
Property, plant and equipment	$	43	$	14	$	2	$	(10)	$	49
Intangible assets		11		12		—		—		23
	$	54	$	26	$	2	$	(10)	$	72

	Space						Corporate and
Year ended December 31, 2016	Systems		Imagery		Services		eliminations		Total
Capital expenditures:
Property, plant and equipment	$	38	$	—	$	1	$	1	$	40
Intangible assets		14		—		1		1		16
	$	52	$	—	$	2	$	2	$	56

Substantially all of the Company’s long-lived tangible assets were in the United States as of December 31, 2018 and 2017, respectively.