Goodwill and Intangible Assets

9 Months Ended

Sep. 30, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Intangible Assets

Goodwill and Intangible Assets

Goodwill

The following table presents goodwill activity during the nine months ended September 30, 2020 (in millions):

	December 31, 2019		Goodwill Acquired		Adjustments		September 30, 2020
Goodwill	$	4,533	$	—	$	4	$	4,537

The adjustments to goodwill during the nine months ended September 30, 2020 were primarily due to foreign currency translation.

Intangible Assets

The components of identifiable intangible assets are as follows (in millions, except years): 

	September 30, 2020							December 31, 2019
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Weighted Average Useful Life (Years)	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Weighted Average Useful Life (Years)
Intangible assets:
Customer lists and user base	$	356	$	(341)	$	15	3	$	356	$	(321)	$	35	5
Marketing related	355		(355)		—		0	360		(360)		—		5
Developed technologies	215		(215)		—		0	216		(214)		2		3
All other	159		(155)		4		3	155		(153)		2		4
Total	$	1,085	$	(1,066)	$	19		$	1,087	$	(1,048)	$	39

Amortization expense for intangible assets was $6 million and $8 million for the three months ended September 30, 2020 and 2019, respectively and $21 million and $26 million for the nine months ended September 30, 2020 and 2019.

Expected future intangible asset amortization as of September 30, 2020 is as follows (in millions):

Remaining 2020	$	8
2021	11
Total	$	19