Wireless Licenses, Goodwill and Other Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2016

Changes in the carrying amount of Wireless licenses are as follows:


(dollars in millions)
Balance at January 1, 2016	$	86,575
Acquisitions (Note 2)		23
Capitalized interest on wireless licenses		259
Reclassifications, adjustments and other		124

Balance at June 30, 2016	$	86,981

Changes in the carrying amount of Goodwill are as follows:


(dollars in millions)	Wireless		Wireline			Other		Total
Balance at January 1, 2016	$	18,393	$	4,331		$	2,607	$	25,331
Acquisitions (Note 2)		–		–			82		82
Reclassifications, adjustments and other		–		(107	)		111		4

Balance at June 30, 2016	$	18,393	$	4,224		$	2,800	$	25,417

The following table displays the composition of Other intangible assets, net:


	At June 30, 2016							At December 31, 2015
(dollars in millions)	Gross Amount		Accumulated Amortization			Net Amount		Gross Amount		Accumulated Amortization			Net Amount
Customer lists (6 to 14 years)	$	4,141	$	(2,477	)	$	1,664	$	4,139	$	(2,365	)	$	1,774
Non-network internal-use software (3 to 8 years)		15,127		(10,198	)		4,929		14,542		(9,620	)		4,922
Other (5 to 25 years)		1,357		(551	)		806		1,346		(450	)		896

Total	$	20,625	$	(13,226	)	$	7,399	$	20,027	$	(12,435	)	$	7,592

The amortization expense for Other intangible assets was as follows:

The estimated future amortization expense for Other intangible assets is as follows: