Note 9–Goodwill

The following table presents changes in the carrying amount of goodwill by reportable segment:



	Defense Solutions			Civil			Health			Total
	(in millions)
Goodwill at December 30, 2016	$	1,954		$	1,731		$	937		$	4,622
Adjustment to original purchase price allocation	94			259			(16		)	337
Foreign currency translation adjustments	7			8			—			15
Goodwill at December 29, 2017	2,055			1,998			921			4,974
Foreign currency translation adjustments	(31		)	(5		)	—			(36		)
Transfers to assets held for sale	—			(57		)	—			(57		)
Goodwill at September 28, 2018	$	2,024		$	1,936		$	921		$	4,881

Accumulated goodwill impairment losses were $369 million and $117 million included within the Health and Civil segments, respectively, at September 28, 2018, December 29, 2017, and December 30, 2016.

Goodwill is tested for impairment at the beginning of the fourth quarter and during interim periods whenever events or circumstances indicate that the carrying value may not be recoverable. There were no goodwill impairments during the nine months ended September 28, 2018, and September 29, 2017.