4. Goodwill

The changes in the carrying amount of goodwill by segment were as follows:

	Transportation Solutions			Industrial Solutions			Communications Solutions			Total
	(in millions)
September 29, 2017(1)	$	2,011		$	3,047		$	593		$	5,651
Currency translation and other		(16	)		(15	)		(4	)		(35	)

June 29, 2018(1)	$	1,995		$	3,032		$	589		$	5,616


(1)	At June 29, 2018 and September 29, 2017, accumulated impairment losses for the Transportation Solutions, Industrial Solutions, and Communications Solutions segments were $2,191 million, $669 million, and $1,514 million, respectively.