v3.20.2
Spectrum License Transactions - Schedule of Spectrum License Activity (Details)
$ in Millions
1 Months Ended 3 Months Ended 6 Months Ended
Apr. 08, 2020
USD ($)
Mar. 31, 2020
USD ($)
license
Jun. 30, 2020
USD ($)
Jun. 30, 2019
USD ($)
Jun. 30, 2020
USD ($)
Jun. 30, 2019
USD ($)
Oct. 31, 2019
USD ($)
Indefinite-lived Intangible Assets [Line Items]              
Purchase of spectrum licenses     $ 745 $ 665 $ 844 $ 850  
Licensing Agreements | Auction 103              
Indefinite-lived Intangible Assets [Line Items]              
Number of licenses | license   2,384          
Purchase of spectrum licenses $ 698 $ 873          
Incentive payments   59          
Asset purchase deposit             $ 82
Down payment   $ 93