Goodwill (Tables)

9 Months Ended

Sep. 30, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

(Dollars in millions)	Western Hemisphere			Eastern Hemisphere			Total
Balance at December 31, 2018	$	494		$	219		$	713
Impairment	(508		)	(222		)	(730		)
Reclassification from held for sale	4			—			4
Foreign currency translation adjustments	10			3			13
Balance at September 30, 2019	$	—		$	—		$	—