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Intangible Assets (Tables)
 3 Months Ended
Mar. 31, 2018
Licenses  
Licenses

Activity related to Licenses for the three months ended March 31, 2018, is presented below: 

Licenses

 

 

 

 

 

 

 

(Dollars in millions)

 

 

Balance at December 31, 2017

$

2,223 

 

Acquisitions

 

1 

 

Transferred to Assets held for sale

 

(10)

 

Exchanges - Licenses received

 

18 

 

Exchanges - Licenses surrendered

 

(1)

Balance at March 31, 2018

$

2,231