Wireless Licenses, Goodwill and Other Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2014

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


(dollars in millions)
Balance at January 1, 2014	$	75,747
Acquisitions (Note 2)		141
Dispositions (Note 2)		(1,978	)
Capitalized interest on wireless licenses		138
Reclassifications, adjustments and other		1,222

Balance at June 30, 2014	$	75,270

Changes in the carrying amount of Goodwill are as follows:

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


	At June 30, 2014							At December 31, 2013
(dollars in millions)	Gross Amount		Accumulated Amortization			Net Amount		Gross Amount		Accumulated Amortization			Net Amount
Customer lists (5 to 13 years)	$	3,635	$	(2,798	)	$	837	$	3,639	$	(2,660	)	$	979
Non-network internal-use software (3 to 7 years)		12,507		(7,896	)		4,611		11,770		(7,317	)		4,453
Other (2 to 25 years)		664		(331	)		333		691		(323	)		368

Total	$	16,806	$	(11,025	)	$	5,781	$	16,100	$	(10,300	)	$	5,800

The amortization expense for Other intangible assets was as follows:

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