Wireless Licenses, Goodwill and Other Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2015

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


(dollars in millions)
Balance at January 1, 2015	$	75,341
Acquisitions (Note 2)		42
Capitalized interest on wireless licenses		4
Reclassifications, adjustments and other		306

Balance at March 31, 2015	$	75,693

Changes in the carrying amount of Goodwill are as follows:


(dollars in millions)	Wireless		Wireline			Total
Balance at January 1, 2015	$	18,390	$	6,249		$	24,639
Reclassifications, adjustments and other		–		(1,336	)		(1,336	)

Balance at March 31, 2015	$	18,390	$	4,913		$	23,303

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


	At March 31, 2015							At December 31, 2014
(dollars in millions)	Gross Amount		Accumulated Amortization			Net Amount		Gross Amount		Accumulated Amortization			Net Amount
Customer lists (5 to 13 years)	$	3,617	$	(2,980	)	$	637	$	3,618	$	(2,924	)	$	694
Non-network internal-use software (3 to 7 years)		13,544		(8,756	)		4,788		13,194		(8,462	)		4,732
Other (5 to 25 years)		725		(371	)		354		670		(368	)		302

Total	$	17,886	$	(12,107	)	$	5,779	$	17,482	$	(11,754	)	$	5,728

The amortization expense for Other intangible assets was as follows:

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