XML 63 R40.htm IDEA: XBRL DOCUMENT v3.20.2
Intangible Assets - Narrative (Details) - Auction 103
$ in Millions
3 Months Ended 6 Months Ended
Mar. 31, 2020
USD ($)
Jun. 30, 2020
USD ($)
license
Indefinite-lived Intangible Assets [Line Items]    
Licenses won | license   237
Total winning bid   $ 146
FCC upfront payment $ 24