On April 3, 2018, we acquired 100% of the outstanding shares of CSRA Inc. (CSRA) for $41.25 per share in cash plus the assumption of outstanding net debt. CSRA is a provider of IT solutions to the defense, intelligence and federal civilian markets and is included in our Information Technology segment.

Fair Value of Net Assets Acquired. The following table summarizes the allocation of the $9.7 billion cash purchase price to the estimated fair values of the assets acquired and liabilities assumed on the acquisition date, with the excess recorded as goodwill:



Cash and equivalents	$	45
Accounts receivable	155
Unbilled receivables	415
Other current assets	303
Property, plant and equipment, net	326
Intangible assets, net	2,066
Goodwill	7,935
Other noncurrent assets	369
Total assets	$	11,614
Accounts payable	$	(135	)
Customer advances and deposits	(151		)
Current lease obligation	(51		)
Other current liabilities	(434		)
Noncurrent lease obligation	(207		)
Noncurrent deferred tax liability	(355		)
Other noncurrent liabilities	(532		)
Total liabilities	$	(1,865	)
Net assets acquired	$	9,749

Pro Forma Information. The following pro forma information presents our consolidated revenue and earnings from continuing operations as if the acquisition of CSRA and the related financing transactions had occurred on January 1, 2017:



	Three Months Ended		Nine Months Ended
	September 30, 2018		September 30, 2018
Revenue	$	9,094	$	27,156
Earnings from continuing operations	872		2,470
Diluted earnings per share from continuing operations	$	2.92	$	8.23

The pro forma information was prepared by combining our reported historical results with the historical results of CSRA for the pre-acquisition periods. In addition, the reported historical amounts were adjusted for the following items, net of associated tax effects:

The pro forma information does not reflect the realization of expected cost savings or synergies from the acquisition, and does not reflect what our combined results of operations would have been had the acquisition occurred on January 1, 2017.

In the first nine months of 2019, we acquired two businesses in our Aerospace segment and a business in our Missions Systems segment for a total of $19. In 2018, we acquired five businesses in addition to the acquisition of CSRA for approximately $400: Hawker Pacific, a leading provider of integrated aviation solutions across Asia Pacific and the Middle East, and two fixed-base operation (FBO) businesses in our Aerospace segment; a maintenance and service provider for the German Army and other international customers in our Combat Systems segment; and a provider of specialized transmitters and receivers in our Mission Systems segment.

The operating results of these acquisitions have been included with our reported results since the respective closing dates. The purchase prices of the acquisitions have been allocated to the estimated fair value of net tangible and intangible assets acquired, with any excess purchase price recorded as goodwill.

In the first nine months of 2019, we completed the sale of a business in our Information Technology segment that was classified as held for sale on the Consolidated Balance Sheet on December 31, 2018. In 2018, we completed the sale of a commercial health products business during the first quarter and the sale of a public-facing contact-center business during the fourth quarter in our Information Technology segment. For the nine-month periods ended September 29, 2019, and September 30, 2018, the proceeds from the sale of businesses were not material and are included in other investing activities, net, in the unaudited Consolidated Statement of Cash Flows.



	Aerospace			Combat Systems		Information Technology		Mission Systems			Marine Systems		Total Goodwill
December 31, 2018 (a)	$	2,813		$	2,633	$	9,622	$	4,229		$	297	$	19,594
Acquisitions/divestitures (b)	2			15		77		6			—		100
Other (c)	(16		)	14		—		(75		)	—		(77		)
September 29, 2019 (a)	$	2,799		$	2,662	$	9,699	$	4,160		$	297	$	19,617

(a)Goodwill in the Information Technology and Mission Systems reporting units is net of $536 and $1.3 billion of accumulated impairment losses, respectively.

(c)Consists primarily of adjustments for foreign currency translation. Also includes an estimated allocation of goodwill in our Mission Systems reporting unit associated with a non-core operation classified as held for sale on the unaudited Consolidated Balance Sheet on September 29, 2019. As we expect this operation to be divested within the next 12 months, the assets and liabilities held for sale are included in other current assets and liabilities on the unaudited Consolidated Balance Sheet.



	Gross Carrying Amount (a)		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount (a)		Accumulated Amortization			Net Carrying Amount
	September 29, 2019							December 31, 2018
Contract and program intangible assets (b)	$	3,775	$	(1,717	)	$	2,058	$	3,771	$	(1,531	)	$	2,240
Trade names and trademarks	465		(188		)	277		469		(177		)	292
Technology and software	165		(126		)	39		165		(116		)	49
Other intangible assets	159		(157		)	2		159		(155		)	4
Total intangible assets	$	4,564	$	(2,188	)	$	2,376	$	4,564	$	(1,979	)	$	2,585

Amortization expense for intangible assets was $69 and $209 for the three- and nine-month periods ended September 29, 2019, and $86 and $190 for the three- and nine-month periods ended September 30, 2018, respectively.