Wireless Licenses, Goodwill and Other Intangible Assets

3 Months Ended

Mar. 31, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Wireless Licenses, Goodwill and Other Intangible Assets

Note 4. Wireless Licenses, Goodwill, and Other Intangible Assets

Wireless Licenses

The carrying amounts of Wireless licenses are as follows:

At March 31, 2020 and 2019, approximately $3.5 billion and $7.2 billion, respectively, of wireless licenses were under development for commercial service for which we were capitalizing interest costs. We recorded approximately $64 million and $88 million of capitalized interest on wireless licenses for the three months ended March 31, 2020 and 2019, respectively.

During the three months ended March 31, 2020, we reclassified substantially all of our 39GHz wireless licenses, including capitalized interest, with a carrying value of $2.8 billion to assets held for sale in connection with the FCC's incentive auction. These wireless licenses were adjusted down to their fair value of $1.6 billion resulting in a pre-tax loss of $1.2 billion ($914 million after-tax). See Note 3 for additional information regarding spectrum license transactions.

The average remaining renewal period of our wireless licenses portfolio was 4.5 years as of March 31, 2020.

Goodwill

Changes in the carrying amount of Goodwill are as follows:



(dollars in millions)	Consumer		Business			Other		Total
Balance at January 1, 2020 ⁽¹⁾	$	17,104	$	7,269		$	16	$	24,389
Reclassifications, adjustments and other	—		(7		)	—		(7		)
Balance at March 31, 2020 ⁽¹⁾	$	17,104	$	7,262		$	16	$	24,382

⁽¹⁾Goodwill is net of accumulated impairment charges of $4.8 billion, related to our Media reporting unit.

Other Intangible Assets

The following table displays the composition of Other intangible assets, net as well as the respective amortization period:



	At March 31, 2020							At December 31, 2019
(dollars in millions)	Gross Amount		Accumulated Amortization			Net Amount		Gross Amount		Accumulated Amortization			Net Amount
Customer lists (8 to 13 years)	$	3,894	$	(1,624	)	$	2,270	$	3,896	$	(1,511	)	$	2,385
Non-network internal-use software (3 to 7 years)	20,971		(14,842		)	6,129		20,530		(14,418		)	6,112
Other (2 to 25 years)	1,969		(997		)	972		1,967		(966		)	1,001
Total	$	26,834	$	(17,463	)	$	9,371	$	26,393	$	(16,895	)	$	9,498

The amortization expense for Other intangible assets was as follows:



	Three Months Ended
(dollars in millions)	March 31,
2020	$	592
2019	555

The estimated future amortization expense for Other intangible assets for the remainder of the current year and next 5 years is as follows:



Years	(dollars in millions)
Remainder of 2020	$	1,714
2021	2,004
2022	1,715
2023	1,368
2024	1,017
2025	660

At March 31,

At December 31,

(dollars in millions)

Wireless licenses