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Goodwill and Acquisition-Related Intangibles
6 Months Ended
Jun. 30, 2018
Goodwill And Intangible Assets Disclosure [Abstract]  
Goodwill and acquisition-related intangibles

5. Goodwill and acquisition-related intangibles

Goodwill was $4.36 billion as of June 30, 2018, and December 31, 2017. There was no impairment of goodwill during the first six months of 2018 or 2017.

The components of Acquisition-related intangibles are as follows:

 

 

Amortization

 

June 30, 2018

 

 

December 31, 2017

 

 

Period

 

Gross Carrying

 

 

Accumulated

 

 

 

 

 

Gross Carrying

 

 

Accumulated

 

 

 

 

 

(Years)

 

Amount

 

 

Amortization

 

 

Net

 

 

Amount

 

 

Amortization

 

 

Net

 

Developed technology

7 - 10

 

$

 

2,130

 

 

$

 

1,469

 

 

$

 

661

 

 

$

 

2,130

 

 

$

 

1,361

 

 

$

 

769

 

Customer relationships

8

 

 

 

810

 

 

 

 

684

 

 

 

 

126

 

 

 

 

810

 

 

 

 

633

 

 

 

 

177

 

Total

 

 

$

 

2,940

 

 

$

 

2,153

 

 

$

 

787

 

 

$

 

2,940

 

 

$

 

1,994

 

 

$

 

946

 

Amortization of acquisition-related intangibles was $79 million for the second quarters of both 2018 and 2017, and $159 million for the first six months of both 2018 and 2017. Fully amortized assets are written off against accumulated amortization.