Intangible Assets (Tables) - USD ($)
$ in Millions

3 Months Ended

9 Months Ended

Sep. 30, 2018

Sep. 30, 2017

Sep. 30, 2018

Sep. 30, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule Of Intangible Assets

Intangible assets consisted of:

	As of September 30, 2018						As of December 31, 2017
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Amortized Intangible Assets
License agreements (a)	$	319	$	160	$	159	$	281	$	140	$	141
Customer relationships	240		136		104		242		119		123
Other	51		20		31		51		18		33
Total	$	610	$	316	$	294	$	574	$	277	$	297
Unamortized Intangible Assets
Goodwill (b)	$	1,064					$	1,073
Trademarks	$	550					$	553

_________

^(a)  The change in the carrying amount since December 31, 2017, primarily reflects the acquisitions of Avis and Budget Licensees and Morini (see Note 5 - Acquisitions and Other Investments).

^(b)  The change in the carrying amount since December 31, 2017, primarily reflects currency translation, partially offset by acquisitions (see Note 5 - Acquisitions and Other Investments).

Amortization of Intangible Assets

$ 15

$ 17

$ 48

$ 48