Quarterly report pursuant to Section 13 or 15(d)

Business & Basis of Presentation - Reclassification (Details)

v3.19.2
Business & Basis of Presentation - Reclassification (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Error Corrections and Prior Period Adjustments Restatement [Line Items]        
Revenue $ 1,977 $ 1,432 $ 3,721 $ 2,807
Subscription Revenue        
Error Corrections and Prior Period Adjustments Restatement [Line Items]        
Revenue 1,537 1,304 2,995 2,562
Advertising revenue        
Error Corrections and Prior Period Adjustments Restatement [Line Items]        
Revenue 358 47 567 89
Equipment        
Error Corrections and Prior Period Adjustments Restatement [Line Items]        
Revenue 41 37 82 72
Other revenue        
Error Corrections and Prior Period Adjustments Restatement [Line Items]        
Revenue $ 41 44 $ 77 84
Previously Reported        
Error Corrections and Prior Period Adjustments Restatement [Line Items]        
Revenue   1,432   2,807
Previously Reported | Subscription Revenue        
Error Corrections and Prior Period Adjustments Restatement [Line Items]        
Revenue   1,139   2,256
Previously Reported | Advertising revenue        
Error Corrections and Prior Period Adjustments Restatement [Line Items]        
Revenue   47   89
Previously Reported | Equipment        
Error Corrections and Prior Period Adjustments Restatement [Line Items]        
Revenue   37   72
Previously Reported | Other revenue        
Error Corrections and Prior Period Adjustments Restatement [Line Items]        
Revenue   209   390
Restatement Adjustment        
Error Corrections and Prior Period Adjustments Restatement [Line Items]        
Revenue   0   0
Restatement Adjustment | Subscription Revenue        
Error Corrections and Prior Period Adjustments Restatement [Line Items]        
Revenue   165   306
Restatement Adjustment | Advertising revenue        
Error Corrections and Prior Period Adjustments Restatement [Line Items]        
Revenue   0   0
Restatement Adjustment | Equipment        
Error Corrections and Prior Period Adjustments Restatement [Line Items]        
Revenue   0   0
Restatement Adjustment | Other revenue        
Error Corrections and Prior Period Adjustments Restatement [Line Items]        
Revenue   $ (165)   $ (306)