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Goodwill and Intangible Assets
 12 Months Ended
Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill and Intangible Assets Goodwill and Intangible Assets
Goodwill of $1.9 billion consisted of $1.4 billion recorded in GM Financial and $504 million included in Cruise at December 31, 2019 and 2018.

December 31, 2019

December 31, 2018

Gross Carrying Amount
 
Accumulated Amortization
 
Net Carrying Amount
 
Gross Carrying Amount
 
Accumulated Amortization
 
Net Carrying Amount
Technology and intellectual property
$
734


$
533


$
201


$
734


$
457


$
277

Brands
4,298


1,285


3,013


4,299


1,165


3,134

Dealer network, customer relationships and other
966


702


264


968


661


307

Total intangible assets
$
5,998


$
2,520


$
3,478


$
6,001


$
2,283


$
3,718



Our amortization expense related to intangible assets was $202 million, $247 million, and $278 million in the years ended December 31, 2019, 2018 and 2017.

Amortization expense related to intangible assets is estimated to be approximately $160 million in each of the next five years.