Wireless Licenses, Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2016

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


	(dollars in millions)
Balance at January 1, 2015	$	75,341
Acquisitions (Note 2)		10,474
Capitalized interest on wireless licenses		389
Reclassifications, adjustments and other		371

Balance at December 31, 2015	$	86,575
Acquisitions (Note 2)		28
Capitalized interest on wireless licenses		506
Reclassifications, adjustments and other		(436	)

Balance at December 31, 2016	$	86,673

Changes in the carrying amount of Goodwill are as follows:


			(dollars in millions)
	Wireless		Wireline			Other		Total
Balance at January 1, 2015	$	18,390	$	6,249		$	–	$	24,639
Acquisitions (Note 2)		3		–			2,035		2,038
Reclassifications, adjustments and other		–		(1,918	)		572		(1,346	)

Balance at December 31, 2015	$	18,393	$	4,331		$	2,607	$	25,331
Acquisitions (Note 2)		–		–			2,310		2,310
Reclassifications, adjustments and other		–		(547	)		111		(436	)

Balance at December 31, 2016	$	18,393	$	3,784		$	5,028	$	27,205

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


								(dollars in millions)
			2016							2015
At December 31,	Gross Amount		Accumulated Amortization			Net Amount		Gross Amount		Accumulated Amortization			Net Amount
Customer lists (6 to 14 years)	$	2,884	$	(480	)	$	2,404	$	4,139	$	(2,365	)	$	1,774
Non-network internal-use software (3 to 8 years)		16,135		(10,913	)		5,222		14,542		(9,620	)		4,922
Other (5 to 25 years)		1,854		(583	)		1,271		1,346		(450	)		896

Total	$	20,873	$	(11,976	)	$	8,897	$	20,027	$	(12,435	)	$	7,592

The amortization expense for Other intangible assets was as follows:

Estimated annual amortization expense for Other intangible assets is as follows: