Quarterly report pursuant to Section 13 or 15(d)

Investments In Affiliates Accounted For Using The Equity Method - Sirius XM Canada (Details)

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Investments In Affiliates Accounted For Using The Equity Method - Sirius XM Canada (Details)
$ / shares in Units, shares in Millions, $ in Millions, $ in Millions
3 Months Ended
May 25, 2017
CAD ($)
Mar. 31, 2019
USD ($)
item
shares
Mar. 31, 2018
USD ($)
Mar. 31, 2019
$ / shares
Mar. 31, 2019
USD ($)
SIRIUS XM Holdings | Sirius XM Canada          
Investments in Affiliates Accounted for Using the Equity Method          
Due from related parties current assets         $ 12
Due to related parties current         4
Due to related parties non current         $ 3
Revenue from related parties   $ 24 $ 24    
SIRIUS XM Holdings | Sirius XM Canada          
Investments in Affiliates Accounted for Using the Equity Method          
Percentage ownership         70.00%
Equity Method Investment Voting Interest   33.00%      
Equity method investment, number of preferred shares owned | shares   591      
Preferred stock, liquidation preference per share | $ / shares       $ 1  
Gross Dividends     $ 1    
SIRIUS XM Holdings | Sirius XM Canada | Services Agreement          
Investments in Affiliates Accounted for Using the Equity Method          
Related party transaction agreement term 30 years        
SIRIUS XM Holdings | Sirius XM Canada | Services Agreement, Years 1 through 5          
Investments in Affiliates Accounted for Using the Equity Method          
Gross revenue percentage 25.00%        
SIRIUS XM Holdings | Sirius XM Canada | Services Agreement Due Thereafter          
Investments in Affiliates Accounted for Using the Equity Method          
Gross revenue percentage 30.00%        
SIRIUS XM Holdings | Sirius XM Canada | Advisory Services Agreement          
Investments in Affiliates Accounted for Using the Equity Method          
Related party transaction agreement term 30 years        
Gross revenue percentage 5.00%        
SIRIUS XM Holdings | Sirius XM Canada | Related Party 7.62% Loan          
Investments in Affiliates Accounted for Using the Equity Method          
Notes receivable, related parties, non current         $ 128
Notes receivable, related parties, maturity period 15 years        
Related party transaction rate 7.62%        
Notes receivable, related parties, annual principal repayment period 60 days        
Annual prepayment excess cash threshold $ 10        
SIRIUS XM Holdings | Sirius XM Canada | Maximum          
Investments in Affiliates Accounted for Using the Equity Method          
Gross Dividends   $ 1      
Sirius XM Canada          
Investments in Affiliates Accounted for Using the Equity Method          
Number of previous shareholders who hold remainder of voting power | item   2