Quarterly report pursuant to Section 13 or 15(d)

Segments and Geographic Information (Details)

v3.20.2
Segments and Geographic Information (Details)
3 Months Ended 9 Months Ended
Sep. 30, 2020
USD ($)
Sep. 30, 2019
USD ($)
Sep. 30, 2020
USD ($)
segment
Sep. 30, 2019
USD ($)
Segment Reporting Information [Line Items]        
Number of reportable segments | segment     2  
Revenue $ 2,025,000,000 $ 2,011,000,000 $ 5,851,000,000 $ 5,732,000,000
Advertising revenue        
Segment Reporting Information [Line Items]        
Revenue 345,000,000 366,000,000 866,000,000 933,000,000
Maximum | Advertising revenue | Intersegment Eliminations        
Segment Reporting Information [Line Items]        
Revenue $ 1,000,000 $ 1,000,000 $ 1,000,000 $ 1,000,000