Intangible Assets and Goodwill (Tables)

9 Months Ended

Sep. 30, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Intangible Assets

Intangible assets at September 30, 2019 and December 31, 2018 consisted of the following ($ in millions):

	September 30 2019			December 31, 2018
Contractual arrangements	$	921		$	921
Non-compete agreements	14			14
Customer relationships	353			353
Trade names	16			16
Technology	9			9
	1,313			1,313
Less: accumulated amortization	(568		)	(524		)
Intangible assets, net	$	745		$	789

Schedule of Goodwill

The goodwill balance as of September 30, 2019 is comprised of the following ($ in millions):

Goodwill acquired in business combinations, net of disposals	$	2,172
Accumulated impairment charges(1)	(126		)
Other	(3		)
Balance at September 30, 2019	$	2,043

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(1) Accumulated impairment charges primarily relate to goodwill impairment charges at Atlantic Aviation recorded during the

year ended December 31, 2009 and 2008.