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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

$

2,232 

 

Acquisitions

 

1 

 

Transferred to Assets held for sale

 

(10)

 

Exchanges - Licenses received

 

18 

 

Exchanges - Licenses surrendered

 

(1)

Balance at March 31, 2018

$

2,240