Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt - Fair Value of Debt (Details)

v3.19.1
Long-Term Debt - Fair Value of Debt (Details) - USD ($)
$ in Millions
Mar. 31, 2019
Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Long-term debt, measured at fair value $ 2,664 $ 2,487
Sirius XM 3.875% Senior Notes due 2022    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Long-term debt, measured at fair value 995  
Sirius XM 4.625% Senior Notes Due 2023    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Long-term debt, measured at fair value 506  
Sirius XM 6.00% Senior Notes Due 2024    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Long-term debt, measured at fair value 1,554  
Sirius XM 5.375% Senior Notes Due 2025    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Long-term debt, measured at fair value 1,025  
Sirius XM 5.375% Senior Notes due 2026    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Long-term debt, measured at fair value 1,021  
Sirius XM 5.0% Senior Notes due 2027    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Long-term debt, measured at fair value 1,498  
Pandora 1.75% Convertible Senior Notes due 2020    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Long-term debt, measured at fair value 1  
Pandora 1.75% Convertible Senior Notes due 2023    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Long-term debt, measured at fair value $ 216