Goodwill and Acquisition-Related Intangibles

9 Months Ended

Sep. 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 September 30, 2018, and December 31, 2017. There was no impairment of goodwill during the first nine months of 2018 or 2017.

The components of Acquisition-related intangibles are as follows:

	Amortization	September 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	$	1,524	$	606	$	2,130	$	1,361	$	769
Customer relationships	8		810		709		101		810		633		177
Total		$	2,940	$	2,233	$	707	$	2,940	$	1,994	$	946

Amortization of acquisition-related intangibles was $80 million for the third quarters of both 2018 and 2017, and $239 million for the first nine months of both 2018 and 2017. Fully amortized assets are written off against accumulated amortization.