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Intangible Assets (Tables)
9 Months Ended
Sep. 30, 2021
Licenses  
Licenses
Activity related to Licenses for the nine months ended September 30, 2021, is presented below:
Licenses
(Dollars in millions)
Balance at December 31, 2020$2,638 
Acquisitions1,464 
Transferred to Assets held for sale(1)
Capitalized interest10 
Balance at September 30, 2021$4,111