v3.20.2
Subsequent Events - Narrative (Details) - USD ($)
Jul. 16, 2020
Jul. 01, 2020
Aug. 03, 2020
Jul. 04, 2020
Jun. 30, 2020
Subsequent Event [Line Items]          
Principal Amount         $ 2,704,000,000
Affiliates          
Subsequent Event [Line Items]          
Principal Amount         $ 27,000,000,000
Subsequent Event | Warrants and Rights Subject to Mandatory Redemption | Rights Offering          
Subsequent Event [Line Items]          
Option to purchase common stock (in shares) (up to)     19,750,000    
Subsequent Event | 6.500% Senior Notes due 2024 | Senior Notes          
Subsequent Event [Line Items]          
Principal Amount       $ 1,000,000,000.0  
Interest rate, stated percentage       650.00%  
Subsequent Event | 5.125% Senior Notes due 2021 | Senior Notes | Affiliates          
Subsequent Event [Line Items]          
Principal Amount       $ 1,250,000,000  
Interest rate, stated percentage       5.125%  
Subsequent Event | Marcelo Claure          
Subsequent Event [Line Items]          
Shares sold 5,000,000.0        
Subsequent Event | Prepaid Business | T-Mobile and Sprint | DISH          
Subsequent Event [Line Items]          
Payments for asset acquisition   $ 1,400,000,000