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Intangible Assets (Tables)
3 Months Ended
Mar. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]  
Licenses
Activity related to Licenses for the three months ended March 31, 2021, is presented below:
Licenses
(Dollars in millions)
Balance at December 31, 2020$2,629 
Acquisitions1,283 
Capitalized interest
Balance at March 31, 2021$3,915