Wireless Licenses, Goodwill and Other Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2013

Changes In The Carrying Amount Of Wireless Licenses

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

(dollars in millions)
Balance at January 1, 2013	$	77,744
Capitalized interest on wireless licenses		133
Reclassifications, adjustments and other		(2,232	)
Balance at March 31, 2013	$	75,645

Changes In The Carrying Amount Of Goodwill

Changes in the carrying amount of Goodwill are as follows:

(dollars in millions)	Wireless		Wireline			Total
Balance at January 1, 2013	$	18,172	$	5,967		$	24,139
Reclassifications, adjustments and other		–		(7	)		(7	)
Balance at March 31, 2013	$	18,172	$	5,960		$	24,132

Composition of Other Intangible Assets, Net

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

	At March 31, 2013							At December 31, 2012
(dollars in millions)	Gross Amount		Accumulated Amortization			Net Amount		Gross Amount		Accumulated Amortization			Net Amount
Customer lists (6 to 13 years)	$	3,552	$	(2,419	)	$	1,133	$	3,556	$	(2,338	)	$	1,218
Non-network internal-use software (3 to 7 years)		10,682		(6,462	)		4,220		10,415		(6,210	)		4,205
Other (2 to 25 years)		773		(299	)		474		802		(292	)		510
Total	$	15,007	$	(9,180	)	$	5,827	$	14,773	$	(8,840	)	$	5,933

Amortization Expense for Other Intangible Assets

The amortization expense for Other intangible assets was as follows:

(dollars in millions)	Three Months Ended March 31,
2013	$	386
2012		361

Estimated Annual Amortization Expense for Other Intangible Assets

Estimated annual amortization expense for Other intangible assets is as follows:
Years	(dollars in millions)
2013	$	1,657
2014		1,282
2015		1,071
2016		822
2017		615