Goodwill

In 2017, 2016 and 2015, our annual goodwill impairment test indicated that goodwill was not impaired. Our cumulative impairment loss of goodwill was $771 million at December 31, 2017. The changes in the carrying amount of goodwill by reportable segment for the years ended December 31, 2017 and 2016, are presented in the following table.



(Dollars in millions)	Western Hemisphere			Eastern Hemisphere			Total
Balance at December 31, 2015	$	2,040		$	763		$	2,803
Foreign currency translation	25			(31		)	(6		)
Balance at December 31, 2016	$	2,065		$	732		$	2,797
Disposals	(162		)	—			(162		)
Foreign currency translation	55			37			92
Balance at December 31, 2017	$	1,958		$	769		$	2,727