Goodwill and Acquisition-Related Intangibles

12 Months Ended

Dec. 31, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and acquisition-related intangibles

Goodwill by segment as of December 31, 2019 and 2018, is as follows:


	Goodwill
Analog	$	4,158
Embedded Processing	172
Other	32
Total	$	4,362

We perform our annual goodwill impairment test as of October 1 and determine whether the fair value of each of our reporting units is in excess of its carrying value. Determination of fair value is based upon management estimates and judgment, using unobservable inputs in discounted cash flow models to calculate the fair value of each reporting unit. These unobservable inputs are considered Level 3 measurements, as described in Note 6. In 2019, 2018 and 2017, we determined no impairment was indicated.

The components of acquisition-related intangibles are as follows:


		December 31, 2019															December 31, 2018
	Amortization Period (Years)	Gross Carrying Amount			Accumulated Amortization			Net			Gross Carrying Amount			Accumulated Amortization			Net
Developed technology	7 – 10	$	2,000		$	1,660		$	340		$	2,125		$	1,573		$	552
Customer relationships	8			—			—			—			810			734			76
Total		$	2,000		$	1,660		$	340		$	2,935		$	2,307		$	628

Acquisition charges

Acquisition charges represent the ongoing amortization of intangible assets resulting from the acquisition of National Semiconductor Corporation. These amounts are included in Other for segment reporting purposes, consistent with how management measures the performance of its segments.

Amortization of acquisition-related intangibles was $288 million in 2019 and $318 million in 2018 and 2017. Fully amortized assets are written off against accumulated amortization. The remaining estimated amortization is $198 million in 2020 and $142 million in 2021.