INTANGIBLE ASSETS AND GOODWILL (Tables)

12 Months Ended

Dec. 31, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible assets

The Company's intangible assets at December 31, 2019 and 2018 consist of the following (in millions):

	December 31, 2019							December 31, 2018
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Amortization Period
Supply and distribution   agreements	$	1,100	$	(472	)	$	628	$	1,099	$	(408	)	$	691	3 - 20 years
Technology	170		(129		)	41		173		(121		)	52		1 - 7 years
Internet domain names	40		(32		)	8		41		(30		)	11		5 - 20 years
Trade names	1,811		(534		)	1,277		1,810		(439		)	1,371		4 - 20 years
Other intangible assets	2		(2		)	—		3		(3		)	—		Up to 15 years
Total intangible assets	$	3,123	$	(1,169	)	$	1,954	$	3,126	$	(1,001	)	$	2,125

Annual estimated amortization expense for intangible assets for the next five years and thereafter

The annual estimated amortization expense for intangible assets for the next five years and thereafter is expected to be as follows (in millions):

 

2020	$	167
2021	160
2022	157
2023	155
2024	155
Thereafter	1,160
	$	1,954

Goodwill

The changes in the balance of goodwill for the years ended December 31, 2019 and 2018 consist of the following (in millions): 

	2019			2018
Balance, beginning of year (1)	$	2,910		$	2,738
Acquisitions	7			212
Foreign currency translation adjustments	(4		)	(40		)
Balance, end of year (1)	$	2,913		$	2,910

(1) The balances are net of an OpenTable goodwill impairment charge of $941 million recognized in 2016.