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Wireless Licenses, Goodwill and Other Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2020

The carrying amounts of Wireless licenses are as follows:

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
Acquisitions ⁽²⁾	109		296		—		405
Reclassifications, adjustments and other	—		5		—		5
Balance at September 30, 2020 ⁽¹⁾	$	17,213	$	7,570	$	16	$	24,799

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

⁽²⁾Changes in goodwill due to acquisitions is related to BlueJeans and an other insignificant transaction. See Note 3 for additional information.

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


	At September 30, 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)	$	4,048	$	(1,854)	$	2,194	$	3,896	$	(1,511)	$	2,385
Non-network internal-use software (5 to 7 years)	22,229		(15,769)		6,460		20,530		(14,418)		6,112
Other (2 to 25 years)	2,001		(1,056)		945		1,967		(966)		1,001
Total	$	28,278	$	(18,679)	$	9,599	$	26,393	$	(16,895)	$	9,498

The amortization expense for Other intangible assets was as follows:

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