The following table presents the carrying value of goodwill by reportable segment.

(in millions)	Traditional Printing			Digital Printing		Advanced Materials and Chemicals			Brand		Total
As of December 31, 2019
Goodwill	$	56		$	6	$	14		$	—	$	76
Accumulated impairment losses		(56	)		—		(8	)		—		(64	)
Balance as of December 31, 2019		—			6		6			—		12
Goodwill reallocation		—			—		(6	)		6		—
Balance as of March 31, 2020	$	—		$	6	$	—		$	6	$	12

As a result of the change in segments that became effective as of January 1, 2020, Kodak’s goodwill reporting units changed. Refer to Note 22, “Segment Information” for additional information on the change to Kodak’s organizational structure. The Digital Printing segment has three goodwill reporting units: Electrophotographic Printing Solutions, Prosper and Versamark and Software. The Advanced Materials and Chemicals segment has three goodwill reporting units: Motion Picture and Industrial Films and Chemicals, Advanced Materials and Functional Printing and Kodak Services for Business. The Traditional Printing segment and Brand segment each have one goodwill reporting unit.

As of December 31, 2019, the goodwill balance of $12 million under the prior year segment reporting structure was comprised of $6 million for the Brand, Film and Imaging segment and $6 million for the Kodak Software segment, which had only one reporting unit (Software). The goodwill in the Brand, Film and Imaging segment was reported in the Consumer Products reporting unit.

The goodwill previously reported in the Consumer Products goodwill reporting unit was transferred to the Brand goodwill reporting unit using a relative fair value allocation to affected reporting units. Goodwill previously reported in the Software reporting unit was transferred to the Digital Printing segment where it continues to remain its own reporting unit.

Kodak performed an interim test of impairment for goodwill as of March 31, 2020 due to the decline in its market capitalization from the last goodwill impairment test (December 31, 2019) and the uncertainty resulting from the COVID-19 pandemic on its operations. Based on the results of the March 31, 2020 analysis, no impairment of goodwill was indicated. As of March 31, 2020, the Brand reporting unit had negative carrying value.

The gross carrying amount and accumulated amortization by major intangible asset category as of March 31, 2020 and December 31, 2019 were as follows:

	March 31, 2020
(in millions)	Gross Carrying Amount		Accumulated Amortization		Net		Weighted-Average Amortization Period
Technology-based	$	99	$	77	$	22	5 years
Kodak trade name		18		—		18	Indefinite life
Customer-related		11		8		3	4 years
Total	$	128	$	85	$	43

	December 31, 2019
(in millions)	Gross Carrying Amount		Accumulated Amortization		Net		Weighted-Average Amortization Period
Technology-based	$	99	$	76	$	23	5 years
Kodak trade name		21		—		21	Indefinite life
Customer-related		11		8		3	4 years
Total	$	131	$	84	$	47

Kodak also performed an interim test of impairment for the Kodak trade name as of March 31, 2020. The interim impairment test of the Kodak trade name used the income approach, specifically the relief from royalty method. Based on the result of the interim impairment test, Kodak concluded the carrying value of the Kodak trade name exceeded its fair value. Pre-tax impairment charges of $3 million are included in Other operating income, net in the Consolidated Statement of Operations.

Amortization expense related to intangible assets was $1 million and $2 million for the three months ended March 31, 2020 and 2019, respectively.

Estimated future amortization expense related to intangible assets that are currently being amortized as of March 31, 2020 was as follows:

(in millions)
Q2 - Q4 2020	$	4
2021		5
2022		5
2023		4
2024		4
2025 and thereafter		3
Total	$	25