The amortization expense for Other intangible assets was as follows:
| Years | (dollars in millions) | |||
|
2013 |
$ | 1,587 | ||
|
2012 |
1,540 | |||
|
2011 |
1,505 | |||
The following table displays the composition of Other intangible assets, net:
| (dollars in millions) | ||||||||||||||||||||||||
| 2013 | 2012 | |||||||||||||||||||||||
| At December 31, |
Gross Amount |
Accumulated Amortization |
Net Amount |
Gross Amount |
Accumulated Amortization |
Net Amount |
||||||||||||||||||
|
Customer lists (5 to 13 years) |
$ | 3,639 | $ | (2,660 | ) | $ | 979 | $ | 3,556 | $ | (2,338 | ) | $ | 1,218 | ||||||||||
|
Non-network internal-use software (3 to 7 years) |
11,770 | (7,317 | ) | 4,453 | 10,415 | (6,210 | ) | 4,205 | ||||||||||||||||
|
Other (2 to 25 years) |
691 | (323 | ) | 368 | 802 | (292 | ) | 510 | ||||||||||||||||
|
|
|
|||||||||||||||||||||||
|
Total |
$ | 16,100 | $ | (10,300 | ) | $ | 5,800 | $ | 14,773 | $ | (8,840 | ) | $ | 5,933 | ||||||||||
|
|
|
|||||||||||||||||||||||
Changes in the carrying amount of Goodwill are as follows:
| (dollars in millions) | ||||||||||||
| Wireless | Wireline | Total | ||||||||||
|
Balance at January 1, 2012 |
$ | 17,963 | $ | 5,394 | $ | 23,357 | ||||||
|
Acquisitions (Note 2) |
209 | 551 | 760 | |||||||||
|
Reclassifications, adjustments and other |
– | 22 | 22 | |||||||||
|
|
|
|||||||||||
|
Balance at December 31, 2012 |
$ | 18,172 | $ | 5,967 | $ | 24,139 | ||||||
|
Acquisitions (Note 2) |
204 | 291 | 495 | |||||||||
|
|
|
|||||||||||
|
Balance at December 31, 2013 |
$ | 18,376 | $ | 6,258 | $ | 24,634 | ||||||
|
|
|
|||||||||||
Changes in the carrying amount of Wireless licenses are as follows:
| (dollars in millions) | ||||
|
Balance at January 1, 2012 |
$ | 73,250 | ||
|
Acquisitions (Note 2) |
4,544 | |||
|
Capitalized interest on wireless licenses |
205 | |||
|
Reclassifications, adjustments and other |
(255) | |||
|
|
|
|||
|
Balance at December 31, 2012 |
$ | 77,744 | ||
|
Acquisitions (Note 2) |
579 | |||
|
Dispositions (Note 2) |
(2,361) | |||
|
Capitalized interest on wireless licenses |
566 | |||
|
Reclassifications, adjustments and other |
(781) | |||
|
|
|
|||
|
Balance at December 31, 2013 |
$ | 75,747 | ||
|
|
|
|||
Estimated annual amortization expense for Other intangible assets is as follows:
| Years | (dollars in millions) | |||
|
2014 |
$ | 1,486 | ||
|
2015 |
1,215 | |||
|
2016 |
971 | |||
|
2017 |
784 | |||
|
2018 |
619 | |||