The assignment of goodwill by business segment, and changes in the carrying amount of goodwill for the three quarters ended April 1, 2016 by business segment, were as follows:



	Communication Systems		Space and Intelligence Systems			Electronic Systems			Critical Networks			Total
	(In millions)
Balance at July 3, 2015	$	760	$	1,446		$	1,718		$	2,424		$	6,348
Impairment of goodwill	—		—			—			(290		)	(290		)
Decrease from reclassification to held for sale asset (1)	—		—			(61		)	—			(61		)
Currency translation adjustments	—		(7		)	(2		)	(39		)	(48		)
Other (including true-ups of previously estimated purchase price allocations) (2)	17		(12		)	26			(40		)	(9		)
Balance at April 1, 2016	$	777	$	1,427		$	1,681		$	2,055		$	5,940

(1)

During the third quarter of fiscal 2016, we determined Aerostructures met the held for sale criteria and reclassified Aerostructures' assets to current assets in accordance with GAAP. We included Aerostructures' assets in the "Assets of disposal group held for sale" line item in the accompanying Condensed Consolidated Balance Sheet (Unaudited) as of April 1, 2016. See Note B — Discontinued Operations and Divestitures and Note T — Subsequent Events in these Notes for additional information.

(2)

Our accounting for the Exelis acquisition is still preliminary. The fair value estimates for the assets acquired and liabilities assumed were based on preliminary calculations, and our estimates and assumptions are subject to change as we obtain additional information for our estimates during the measurement period (up to one year from the acquisition date). The primary areas of these preliminary estimates that are not yet finalized relate to certain tangible assets, liabilities acquired (including environmental reserves), and tax-related items. During the three quarters ended April 1, 2016, we recorded several purchase price adjustments which impacted goodwill, the largest of which reduced current liabilities by $82 million related to previously unrecognized tax benefits and to deferred revenue based on the fair value of a customer contract.